WO2024035157A1 - 카메라 장치 - Google Patents
카메라 장치 Download PDFInfo
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- WO2024035157A1 WO2024035157A1 PCT/KR2023/011834 KR2023011834W WO2024035157A1 WO 2024035157 A1 WO2024035157 A1 WO 2024035157A1 KR 2023011834 W KR2023011834 W KR 2023011834W WO 2024035157 A1 WO2024035157 A1 WO 2024035157A1
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- WIPO (PCT)
- Prior art keywords
- light
- area
- depth information
- light signal
- signal
- Prior art date
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/2224—Studio circuitry; Studio devices; Studio equipment related to virtual studio applications
- H04N5/2226—Determination of depth image, e.g. for foreground/background separation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/42—Simultaneous measurement of distance and other co-ordinates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
- G01S17/894—Three-dimensional [3D] imaging with simultaneous measurement of time-of-flight at a two-dimensional [2D] array of receiver pixels, e.g. time-of-flight cameras or flash lidar
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/50—Depth or shape recovery
- G06T7/521—Depth or shape recovery from laser ranging, e.g. using interferometry; from the projection of structured light
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10028—Range image; Depth image; 3D point clouds
Definitions
- the present invention relates to a camera device, and more specifically, to a camera device that generates depth information.
- 3D content is applied in many fields such as education, manufacturing, and autonomous driving as well as games and culture, and depth information (Depth Map) is required to obtain 3D content.
- Depth information is information representing distance in space, and represents perspective information of another point with respect to one point in a two-dimensional image.
- Methods for acquiring depth information include projecting IR (Infrared) structured light onto an object, using a stereo camera, and TOF (Time of Flight) methods.
- the distance to an object is calculated by measuring the time of flight, that is, the time it takes for light to be emitted and reflected.
- the biggest advantage of the ToF method is that it provides distance information in 3D space quickly and in real time. Additionally, users can obtain accurate distance information without applying a separate algorithm or hardware correction. In addition, accurate depth information can be obtained even when measuring a very close subject or a moving subject.
- AR augmented reality
- VR virtual reality
- HMDs head mounted displays
- a ToF camera device outputs IR light toward an object. Since IR light is invisible to the human eye, it may be difficult for the user to recognize it even if an amount of IR light higher than a safe level for the human body is output for a long period of time due to an error in the camera device or damage to the lens. Accordingly, a camera device according to the ToF method needs to limit the intensity or output time of IR light. Limiting the intensity or output time of IR light may increase human safety, but may lower the resolution of depth information.
- the technical problem to be achieved by the present invention is to provide a camera device that has high resolution of depth information while ensuring human safety.
- a camera device includes a first light emitting unit that outputs a first output light signal, and a first light receiving unit that receives a first input light signal in which the first output light signal is reflected from an object.
- the signal is an input light signal for a second area of the object, and the depth information includes first depth information for an overlapping area of the object where the first area and the second area overlap each other, and the first area and the The second area includes second depth information for a non-overlapping area of the object that does not overlap each other, and the resolution of the first depth information is higher than the resolution of the second depth information.
- the overlapping area may be disposed between the non-overlapping areas.
- the first depth information may be generated by combining the first input light signal and the second input light signal for the overlapping area.
- the light distribution of the first output light signal may be asymmetric with respect to the center of the first area, and the light distribution of the second output light signal may be asymmetric with respect to the center of the second area.
- the first light emitting unit and the second light emitting unit may each include a light source and a diffusion member disposed on the light source.
- the control unit may control the first light emitting unit and the second light emitting unit to be alternately turned on/off.
- the optical axis of the first light receiver and the optical axis of the second light receiver are parallel to each other, the optical axis of the first light receiver and the optical axis of the first light receiver are not parallel to each other, and the optical axis of the second light receiver and the optical axis of the second light receiver are parallel to each other. may not be parallel to each other.
- first light receiver and the second light receiver It is disposed between the first light receiver and the second light receiver, and further includes an angle adjustment member that adjusts an angle formed by the optical axis of the first light receiver and the optical axis of the second light receiver, and the optical axis of the first light receiver and the second light receiver. 2
- the range of the overlapping area may vary depending on the angle formed by the optical axis of the light receiver.
- the control unit may control the angle adjustment member.
- the optical axis of the first light emitting unit and the optical axis of the first light receiving unit may be parallel to each other, and the optical axes of the second light emitting unit and the optical axes of the second light receiving unit may be parallel to each other.
- a separation detection device includes a first body; a second body joined to the first body; A sensing pattern patterned across the first body and the second body at a junction of the first body and the second body; and a detection unit electrically connected to the detection pattern, wherein the detection unit detects separation of the detection pattern.
- the detection pattern may include: a first pattern patterned on the first body; and a second pattern patterned on the second body, wherein the first pattern and the second pattern are connected through at least one contact point, and the at least one contact point is connected to the first body and the second body. It can be placed at the junction of .
- the detection pattern may be patterned using LDS (Laser Direct Structuring).
- the sensing pattern may include at least one cross pattern connected across the first body and the second body.
- the sensing pattern may be patterned in a meander shape or zigzag shape formed across the first body and the second body.
- the first body and the second body each include surfaces that face each other and contact each other, and the sensing pattern includes at least one first contact point disposed on a surface of the first body that faces and touches each other; and at least one second contact point disposed on a surface of the second body facing each other and corresponding to the first contact point, wherein the first contact point or the second contact point has a pattern when separated after being bonded to each other. may be damaged.
- the sensing pattern includes a plurality of sensing patterns connected to the sensing unit to form a loop, and the plurality of sensing patterns may have different positions on the first body and the second body where they are each patterned.
- the sensing unit may measure the resistance of the sensing pattern and detect separation of the first body and the second body according to a change in the resistance.
- An electronic device includes a first body; a second body joined to the first body; an internal element disposed inside the first body or the second body; a control unit that controls the internal elements; and a sensing pattern patterned across the first body and the second body at a junction of the first body and the second body, wherein the control unit is electrically connected to the sensing pattern to separate the sensing pattern.
- the control unit may measure the resistance of the sensing pattern and detect separation of the first body and the second body according to a change in the resistance.
- the control unit may stop the operation of the internal element when detecting separation of the detection pattern.
- the control unit may block restart of the internal element when detecting separation of the detection pattern.
- a camera device capable of obtaining high-resolution depth information while ensuring human safety.
- more precise depth information can be obtained within the main viewing angle of the human eye, thereby minimizing the amount of unnecessary data and calculations, and obtaining quality similar to that seen with the human eye.
- FIG. 1 is a block diagram of a camera device according to an embodiment of the present invention.
- Figure 2 is a flowchart of a method for generating depth information using a camera device according to an embodiment of the present invention.
- Figure 3 is a diagram for explaining a depth information generation area using a camera device according to an embodiment of the present invention.
- Figure 4 is a conceptual diagram of a camera device and depth information generated using the camera device according to an embodiment of the present invention.
- Figure 5 is a block diagram of a camera device according to another embodiment of the present invention.
- Figure 6 is a conceptual diagram of a camera device and depth information generated using the camera device according to another embodiment of the present invention.
- Figure 7 is a block diagram of a separation detection device according to an embodiment of the present invention.
- FIG 8 to 11 are diagrams for explaining separation detection of the separation detection device according to an embodiment of the present invention.
- Figure 12 is a block diagram of an electronic device according to an embodiment of the present invention.
- the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in various different forms, and as long as it is within the scope of the technical idea of the present invention, one or more of the components may be optionally used between the embodiments. It can be used by combining and replacing.
- first, second, A, B, (a), and (b) may be used.
- a component when a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to that other component, but also is connected to that component. It can also include cases where other components are 'connected', 'combined', or 'connected' due to another component between them.
- “above” or “below” refers not only to cases where two components are in direct contact with each other, but also to one This also includes cases where another component described above is formed or placed between two components.
- “top (above) or bottom (bottom)” it may include not only the upward direction but also the downward direction based on one component.
- a camera device may refer to a camera that extracts depth information using a Time of Flight (ToF) function. Therefore, the camera device can be used interchangeably with a ToF camera device, a ToF camera module, and a ToF camera.
- ToF Time of Flight
- FIG. 1 is a block diagram of a camera device according to an embodiment of the present invention
- FIG. 2 is a flowchart of a method for generating depth information using a camera device according to an embodiment of the present invention
- FIG. 3 is an embodiment of the present invention. This is a diagram to explain the depth information generation area using a camera device according to .
- the camera device 1 includes a first transceiver device 100, a second transceiver device 200, a depth information generator 300, and a control unit 400.
- the first transmitting and receiving device 100 includes a first light emitting unit 110 that outputs an output optical signal and a light receiving unit 120 that receives an input optical signal, and the second transmitting and receiving device 200 outputs an output optical signal. It includes a second light emitting unit 210 and a light receiving unit 220 that receives an input light signal.
- the first light emitting unit 110 and the second light emitting unit 210 generate output light signals and then emit them.
- the first light emitting unit 110 and the second light emitting unit 210 may generate and output an output light signal in the form of a pulse wave or a continuous wave.
- Continuous waves can be in the form of sinusoid waves or square waves.
- the camera device 1 combines the output light signal output from the first light emitting unit 110 and the second light emitting unit 210 with the first light receiving unit ( 120) and the second light receiving unit 220 may detect a time difference or a phase difference between the input light signals.
- the output light refers to the light output from the first light emitting unit 110 and the second light emitting unit 210 and incident on the object
- the input light refers to the light output from the first light emitting unit 110 and the second light emitting unit 210 ( This may refer to light output from 210), reaching an object, and then being reflected from the object and input into the first light receiving unit 120 and the second light receiving unit 220. From the object's perspective, output light can be incident light, and input light can be reflected light.
- the first light emitting unit 110 and the second light emitting unit 210 may each include a light source, a lens assembly, and a diffusion member.
- a light source produces light.
- the light produced by the light source may be infrared with a wavelength of 770 to 3000 nm.
- the light source may use a light emitting diode (LED), and may have a plurality of light emitting diodes arranged according to a certain pattern.
- the light source may include an organic light emitting diode (OLED) or a laser diode (LD).
- the light source may be a Vertical Cavity Surface Emitting Laser (VCSEL).
- VCSEL is one of the laser diodes that converts electrical signals into optical signals, and can output a wavelength of about 800 to 1000 nm, for example, about 850 nm or about 940 nm.
- the light source repeats blinking (on/off) at regular time intervals to generate an output light signal in the form of a pulse wave or continuous wave.
- the certain time interval may be the frequency of the output light signal.
- the lens assembly can converge light output from a light source and output the condensed light to the outside.
- the lens assembly may be disposed on top of the light source and spaced apart from the light source.
- the upper part of the light source may mean the side where light is output from the light source.
- the lens assembly may include at least one lens.
- the lens assembly may be received or supported in the housing.
- the housing may be coupled with a driving module, and the lens assembly may be moved in the direction of the optical axis or in a direction perpendicular to the optical axis by the driving module.
- the diffusion member may receive light output from a light source and then output the received light by refracting or diffracting it.
- the first light receiver 120 and the second light receiver 220 receive light reflected from the object.
- the first light receiver 120 and the second light receiver 220 may include a lens assembly that collects input light reflected from an object, a filter, and an image sensor that converts the input light passing through the lens assembly into an electrical signal. and the lens assembly, filter, and image sensor may be accommodated or supported in the housing.
- the optical axis of the lens assembly may be aligned with the optical axis of the image sensor.
- the filter is disposed between the lens assembly and the image sensor and can filter light having a predetermined wavelength range.
- the filter may pass light in the wavelength band of the output light output from the first light emitting unit 110 and the second light emitting unit 210.
- the image sensor can receive an input light signal in synchronization with the blinking cycle of the light source. Specifically, the image sensor can receive an output light signal output from a light source and light in phase and out of phase, respectively. That is, the image sensor may repeatedly perform the steps of receiving an input light signal when the light source is turned on and receiving the input light signal when the light source is turned off.
- An image sensor may use a plurality of reference signals having different phase differences to generate electrical signals corresponding to each reference signal.
- the frequency of the reference signal may be set to be the same as the frequency of the output optical signal output from the light source. Therefore, when the light source generates output optical signals at a plurality of frequencies, the image sensor generates an electrical signal using a plurality of reference signals corresponding to each frequency.
- the electrical signal may include information about the amount of charge or voltage corresponding to each reference signal.
- Each reference signal (C 1 to C 4 ) may have the same frequency as the output optical signal, but may have a 90-degree phase difference from each other.
- One of the four reference signals (C 1 ) may have the same phase as the output optical signal.
- the phase of the input light signal is delayed by the distance that the output light signal is reflected from after being incident on the object.
- the image sensor mixes the input light signal and each reference signal. Then, the image sensor can generate an electrical signal for each reference signal.
- An image sensor may have a structure in which a plurality of pixels are arranged in a grid.
- the image sensor may be a Complementary Metal Oxide Semiconductor (CMOS) image sensor or a Charge Coupled Device (CCD) image sensor.
- CMOS Complementary Metal Oxide Semiconductor
- CCD Charge Coupled Device
- the image sensor may include a ToF sensor that receives IR light reflected from an object and measures distance using time or phase difference.
- each pixel may include an in-phase reception unit that receives an input light signal in the same phase as the waveform of the output light, and an out-phase reception unit that receives the input light signal in a phase opposite to the waveform of the output light.
- a difference occurs in the amount of light received by the in phase receiving unit and the out phase receiving unit depending on the distance to the object, and this is used to determine the distance to the object. can be calculated.
- the first light emitting unit 110 and the first light receiving unit 120 of the first transceiving device 100 may be arranged side by side, and the second light emitting unit 210 and the second light receiving unit 220 of the second transceiving device 200 ) can be placed side by side.
- the depth information generator 300 may generate depth information of an object using the input light signals input to the first light receiver 120 and the second light receiver 220. For example, the depth information generator 300 determines the flight time required for the output light signal output from the first light emitter 110 to be input to the first light receiver 120 after being reflected from an object and the second light emitter ( Depth information of the object can be generated using the flight time it takes for the output light signal output from 210) to be input to the second light receiver 220 after being reflected from the object. For example, the depth information generator 300 calculates the phase difference between the output light signal and the input light signal using the electrical signal received from the image sensor, and calculates the distance between the object and the camera device using the phase difference. .
- the depth information generator 300 may calculate the phase difference between the output light signal and the input light signal using charge amount information of the electric signal.
- the depth information generator 300 can calculate the phase difference (t d ) between the output light signal and the input light signal using Equation 1 below.
- Q 1 to Q 4 are the charge amounts of each of the four electric signals.
- Q 1 is the amount of charge of the electric signal corresponding to the reference signal of the same phase as the output optical signal.
- Q 2 is the amount of charge of the electric signal corresponding to the reference signal whose phase is 180 degrees slower than the output optical signal.
- Q 3 is the amount of charge of the electric signal corresponding to the reference signal whose phase is 90 degrees slower than the output optical signal.
- Q 4 is the amount of charge of the electric signal corresponding to the reference signal whose phase is 270 degrees slower than the output optical signal.
- the depth information generator 300 can calculate the distance between the object and the camera device 1 using the phase difference between the output light signal and the input light signal. At this time, the depth information generator 300 may calculate the distance d between the object and the camera device 1 using Equation 2 below.
- c is the speed of light
- f is the frequency of the output light
- the control unit 400 controls the operation of the first transceiver device 100, the second transceiver device 200, and the depth information generator 300.
- the first light receiving unit 120 of the first transmitting and receiving device 100 acquires the first input light signal for the first area A1 (S210), and the second transmitting and receiving device 200 )
- the second light receiving unit 220 acquires the second input light signal for the second area A2 (S220), and the depth information generating unit 300 uses the first input light signal and the second input light signal.
- first depth information for the overlapping area and second depth information for the non-overlapping area are generated (S230).
- the first input light signal is a signal input to the first light receiver 120 after the first output light signal output by the first light emitting unit 110 is reflected from the object, and is input to the first area A1. It is an optical signal.
- the second input light signal is a signal input to the second light receiver 220 after the second output light signal output by the second light emitter 210 is reflected from the object, and is the input light signal to the second area A2. am.
- a part of the first area A1 and a part of the second area A2 overlap each other, and the remaining part of the first area A1 and the remaining part of the second area A2 They may not overlap with each other.
- the area A3 that overlaps each other in the first area A1 and the second area A2 is referred to as an overlapping area, and the areas A4 and A5 that do not overlap each other are referred to as non-overlapping areas,
- the overlapping area A3 may be placed between the non-overlapping areas A4 and A5.
- the first light emitting unit 110 and the second light emitting unit 210 are set to be turned on/off alternately, and the first output light signal of the first light emitting unit 110 is output.
- the period and the first input light signal reception period of the first light receiving unit 120 are synchronized with each other, and the second output light signal output period of the second light receiving unit 210 and the second input light signal reception period of the second light receiving unit 220 are synchronized with each other. Cycles can be synchronized with each other.
- the control unit 400 may control the operations of the first light emitting unit 110, the first light receiving unit 120, the second light emitting unit 210, and the second light receiving unit 220.
- the intensity of the output light signal output at a specific time can be lowered, thereby improving human safety.
- the total field of view (FOV) of the camera device 1 may be expanded to the first area A1 and the second area A2.
- the depth information generator 300 in step S230, the depth information generator 300 generates first depth information and Second depth information is generated for non-overlapping areas A4 and A5 in which the first area A1 and the second area A2 do not overlap each other.
- the depth information generator 300 generates depth information for the first area A1 using the time difference or phase difference between the first input light signal and the first output light signal for the first area A1.
- the first area (A2) Depth information for A1) and depth information for the second area (A2) can be synthesized.
- Combining the depth information for the first area A1 and the depth information for the second area A2 will be performed using at least one of a depth image convolution algorithm and a reconstruction algorithm.
- the depth information generator 300 extracts a plurality of first feature points from depth information about the first area A1 and extracts a plurality of second feature points from depth information about the second area A2. And, among the plurality of first feature points and the plurality of second feature points, corresponding feature point pairs may be extracted.
- First depth information can be generated using a reconstruction algorithm for the extracted feature point pairs. However, this is just an example of combining depth information for the first area (A1) and depth information for the second area (A2), and depth information for the first area (A1) is obtained using various techniques for combining images.
- the resolution of the first depth information for the overlapping area A3 where the first area A1 and the second area A2 overlap each other is It is higher than the resolution of the second depth information for the non-overlapping areas (A4, A5).
- the range of the overlapping area (A3) is set within ⁇ 30°, which is the main viewing angle of the human eye
- the resolution of the first depth information for the overlapping area (A3) corresponding to the main viewing angle of the human eye is the main viewing angle of the human eye. Since the resolution of the second depth information for the non-overlapping areas (A4, A5) corresponding to the periphery of the viewing angle is higher, it is possible to generate depth information of a quality similar to that perceived by the human eye.
- FIG. 4 is a conceptual diagram of a camera device and depth information generated using the camera device according to an embodiment of the present invention. For convenience of explanation, duplicate descriptions of content that is the same as that described in FIGS. 1 to 3 will be omitted.
- the camera device 1 includes a first transceiver device 100, a second transceiver device 200, a depth information generator 300, and a control unit 400.
- the first transmitting and receiving device 100 includes a first light emitting unit 110 that outputs a first output optical signal and a first light receiving unit 120 that receives a first input optical signal
- the second transmitting and receiving device 200 It includes a second light emitting unit 210 that outputs a second output light signal and a second light receiving unit 220 that receives a second input light signal.
- the depth information generator 300 generates depth information using the first output light signal, the first input light signal, the second output light signal, and the second input light signal
- the control unit 400 generates depth information using the first transmitting and receiving device ( 100), the second transmitting and receiving device 200, and the depth information generating unit 300 are generally controlled.
- the first transmission and reception device 100 and the second transmission and reception device 200 may be arranged adjacent to each other, and the first light emitting unit 110 and the second transmission and reception device 100 may be connected to each other.
- the first light receiving unit 120 of the first transceiving device 100 and the second light receiving unit 220 of the second transceiving device 200 may be disposed between the second light emitting unit 210 of the transceiving device 200. That is, the first light emitting unit 110, the first light receiving unit 120, the second light receiving unit 220, and the second light emitting unit 210 may be sequentially arranged along the X direction.
- the range of the overlapping area which is the area A3 where the first area A1 and the second area A2 overlap each other, can be expanded.
- the range of the overlapping area may vary depending on the distance between the first light receiving unit 120 and the second light receiving unit 220.
- the range of the overlapping area may mean the width in the X-axis direction.
- the first light receiving unit 120 and the second light receiving unit 220 are arranged side by side, and the optical axis (X1) of the first light receiving unit (120) and the optical axis (X2) of the second light receiving unit (220) may be parallel to each other. According to this, the first light receiving unit 120 and the second light receiving unit 220 acquire an input light signal for the entire area extending in the X-axis direction from one end of the first area A1 to the other end of the second area A2. can do.
- the first light receiving unit 120 and the second light receiving unit 220 may be disposed on one substrate (S).
- the depth information generator 300 and the control unit 400 are shown as being disposed between the first light receiver 120 and the second light receiver 220, but are not limited thereto.
- the depth information generator 300 and the control unit 400 may be disposed in an arbitrary area on the substrate S where the first light receiver 120 and the second light receiver 220 are disposed, and the circuit pattern on the substrate S Alternatively, it may be implemented by an IC chip.
- the depth information generator 300 and the control unit 400 may be included in an electronic device in which the camera device 1 according to an embodiment of the present invention is disposed.
- the depth information generator 300 and the control unit 400 may be implemented in the form of an application processor (AP) of an electronic device equipped with the camera device 1 according to an embodiment of the present invention. .
- AP application processor
- the first light emitting unit 110 emits a first output light signal
- the second light emitting unit 210 emits a second output light signal.
- the first light emitting unit 110 and the second light emitting unit 210 may be turned on/off alternately. Accordingly, since the first output light signal and the second output light signal are not output at the same time, human safety can be improved.
- the first light emitting unit 110 irradiates the first output light signal to the area including the first area A1
- the second light emitting unit 210 radiates the first output light signal to the area including the first area A1.
- the second output light signal is irradiated to the area including. That is, the area to which the first output light signal is irradiated is wider than the first area A1 for the first input light signal received by the first light receiving unit 120, and the area to which the second output light signal is irradiated is wider than the first area A1 for the first input light signal received by the first light receiving unit 120.
- 220 may be wider than the second area A2 for the second input light signal received.
- each of the first output light signal and the second output light signal must be irradiated to an area including the overlapping area A3 of the first area A1 and the second area A2.
- synthesized depth information can be obtained for the entire overlapping area A3, which is the area A3 where the first area A1 and the second area A2 overlap each other.
- the first light emitting unit 110 and the second light emitting unit 210 are disposed on both sides of the first light receiving unit 210 and the second light receiving unit 220. Nevertheless, in order for the first output light signal to be irradiated to the area including the first area A1 and the second output light signal to be irradiated to the area including the second area A2, the first light emitting unit ( 110)'s optical axis (X3) and the optical axis (X1) of the first light receiving unit 120 are not parallel to each other, and the optical axis ( They may not be parallel to each other.
- the optical axis X3 of the first light emitting unit 110 is inclined at a predetermined angle toward the optical axis 2 It may be tilted at a predetermined angle toward the optical axis (X2) of the light receiving unit 220.
- the first light emitting unit 110 is disposed on a separate substrate (S1) rather than the substrate (S) on which the first light receiving unit 120 is disposed
- the second light emitting unit 210 is disposed on the second light receiving unit 220.
- the lens assemblies included in the first light emitting unit 110 and the second light emitting unit 210 may include an off-axis lens. According to this, the light distribution of the first output light signal may be asymmetric with respect to the center of the first area A1, and the light distribution of the second output light signal may be asymmetric with respect to the center of the second area A2.
- the first light emitting unit 110 and the second light emitting unit 210 each include a diffusion member, and the diffusion member may be disposed on the light source to diffuse the output light signal.
- the diffusion member may be disposed on the light source to diffuse the output light signal.
- the size of the area to which the output light signal is radiated may be expanded.
- the depth information generating device 300 generates first depth information for the overlapping area A3 where the first area A1 and the second area A2 overlap each other, and the first and second areas A1 and A2. (A2) generates second depth information for non-overlapping areas (A4, A5) that do not overlap each other.
- First depth information about the overlapping area A3 where the first area A1 and the second area A2 overlap each other include depth information about the first area A1 and depth information about the second area A2. Since it is obtained by combining high.
- the resolution of the first depth information for the overlapping area (A3) corresponding to the main viewing angle of the human eye is the main viewing angle of the human eye. Since the resolution of the second depth information for the non-overlapping areas (A4, A5) corresponding to the periphery of the viewing angle is higher, it is possible to generate depth information of a quality similar to that perceived by the human eye.
- FIG. 5 is a block diagram of a camera device according to another embodiment of the present invention
- FIG. 6 is a conceptual diagram of a camera device according to another embodiment of the present invention and depth information generated using the same.
- duplicate descriptions of content that is the same as that described with reference to FIGS. 1 to 4 will be omitted.
- the camera device 1 includes a first transceiver device 100, a second transceiver device 200, a depth information generator 300, and a control unit 400.
- the first transmitting and receiving device 100 includes a first light emitting unit 110 that outputs a first output light signal and a light receiving unit 120 that receives a first input optical signal
- the second transmitting and receiving device 200 includes a second transmitting and receiving device 200. It includes a second light emitting unit 210 that outputs an output light signal and a light receiving unit 220 that receives a second input light signal.
- the depth information generator 300 generates depth information using the first output light signal, the first input light signal, the second output light signal, and the second input light signal
- the control unit 400 generates depth information using the first transmitting and receiving device ( 100), the second transmitting and receiving device 200, and the depth information generating unit 300 are generally controlled.
- first transmission and reception device 100 and the second transmission and reception device 200 may be arranged adjacent to each other, and the first light emitting unit 110 of the first transmission and reception device 100 and the second transmission and reception device 200 may be connected to each other.
- the first light receiving unit 120 of the first transceiving device 100 and the second light receiving unit 220 of the second transceiving device 200 may be disposed between the two light emitting units 210. That is, the first light emitting unit 110, the first light receiving unit 120, the second light receiving unit 220, and the second light emitting unit 210 may be arranged in this order.
- the first light receiver 120 and the second light receiver 220 are disposed between the first light receiver 110 and the second light receiver 210, the first light receiver 120 and the second light receiver 220 Since the distance between the first and second areas A1 and A2 can be minimized, the range of the overlapping area, which is the area A3 where the first area A1 and the second area A2 overlap each other, can be expanded.
- the camera device 1 may further include an angle adjustment member 500.
- the angle adjustment member 500 is connected to the first transceiving device 100 and the second transceiving device 200, particularly the first light receiving unit 120 of the first transceiving device 100 and the second light receiving unit of the second transceiving device 200. It is disposed between 220 and adjusts the angle between the optical axis of the first light receiving unit 120 and the optical axis of the second light receiving unit 220.
- the angle formed by the optical axis of the first light receiver 120 and the optical axis of the second light receiver 220 changes, the range of the first area A1 and the range of the second area A2 change, and accordingly, the range of the first area A1 and the second area A2 change.
- the range of the overlapping area where A1) and the second area A2 overlap each other also changes.
- the first light receiving unit 120 and the second light receiving unit 220 have an FOV of a preset range. That is, the range of the first area A1 of the first light receiving unit 120 and the range of the second area A2 of the second light receiving unit 220 are set in advance.
- the range of the first area A1 and the range of the second area A2 may mean the width in the X-axis direction.
- the optical axis of the first light receiver 120 and the optical axis of the second light receiver 220 are tilted to approach each other, the optical axis of the first light receiver 120 and the optical axis of the second light receiver 220 Compared to the case where the first area A1 and the second area A2 overlap each other, the range of the overlap area A3 becomes larger, and the entire range that the camera device 1 can recognize, that is, the first area A3, is larger than the first area A1 and the second area A2. The range from the left side of area A1 to the right side of the second area A2 may be reduced.
- the optical axes of the first light receiver 120 and the optical axes of the second light receiver 220 are tilted away from each other, and when the optical axes of the first light receiver 120 and the optical axes of the second light receiver 220 are parallel to each other Compared to, the range of the overlapping area A3 where the first area A1 and the second area A2 overlap each other is reduced, and the entire range that the camera device 1 can recognize, that is, the area of the first area A1, is reduced.
- the range from the left side to the right side of the second area A2 may increase.
- the entire range that can be recognized by the camera device 1 can be adjusted by adjusting the angle formed by the optical axis of the first light receiver 120 and the optical axis of the second light receiver 220.
- the range of the overlapping area that can be recognized by the two light receivers in the camera device 1 and obtain high-resolution depth information can be adjusted.
- the optical axis of the first light receiver 120 and the second light receiver 220 are adjusted using the angle adjustment member 500.
- the optical axis of the light detector 120 are moved away from each other and the range of the overlapping area requiring precise depth information needs to be expanded, the optical axis of the first light receiver 120 and the optical axis of the second light receiver 220 are adjusted using the angle adjustment member 500. We can bring them closer to each other.
- the angle adjustment member 500 may be controlled by the control unit 400.
- the angle adjustment member 500 may include, for example, a hinge, a stepping motor, a microelectromechanical system (MEMS), and a piezo disposed between the first light receiving unit 120 and the second light receiving unit 220. It may include at least one of the elements.
- the control unit 400 can control the angle adjustment member 500 in real time, and thus the recognition range of the camera device 1 can be adjusted in real time according to various applications and user needs. there is.
- the angle adjustment member 500 is disposed between the first transmission and reception device 100 and the second transmission and reception device 200 so that the optical axis of the first light receiving unit 120 of the first transmission and reception device 100 And when adjusting the angle between the optical axes of the second light receiving unit 220 of the second transceiving device 200, the first light emitting unit 110 and the first light receiving unit 120 of the first transceiving device 100 are formed on one substrate. It is disposed on (S3), and the second light emitting unit 210 and the second light receiving unit 220 of the second transmitting and receiving device 200 may also be disposed on one substrate (S4).
- the optical axis (X3) of the first light emitting unit 110 and the optical axis (X1) of the first light receiving unit 120 are parallel to each other, and the optical axis ( The optical axes (X2) of may be parallel to each other.
- the first output light signal output from the first light emitting unit 110 is irradiated to the area including the first area A1
- the second output light signal output from the second light emitting unit 210 is radiated to the second area A1.
- the first light emitting unit 110 and the second light emitting unit 210 may each include a diffusion member disposed on the light source.
- the optical axis X3 of the first light emitting unit 110 and the optical axis X1 of the first light receiving unit 120 are not parallel to each other, and the optical axis )'s optical axes (X2) may not be parallel to each other.
- the first light emitting unit 110 and the first light receiving unit 120 are placed on the same substrate S3, and the area where the first light emitting unit 110 is placed is the area where the first light receiving unit 120 is placed. It can be inclined toward .
- the second light emitting unit 210 and the second light receiving unit 220 are disposed on the same substrate S4, and the area where the second light emitting unit 210 is placed is the area where the second light receiving unit 220 is placed. It can be inclined toward .
- the lens assembly included in the first light emitting unit 110 and the lens assembly included in the second light emitting unit 210 may each include an off-axis lens.
- the light distribution of the first output light signal may be asymmetric with respect to the center of the first area A1, and the light distribution of the second output light signal may be asymmetric with respect to the center of the second area A2.
- the output light signal is irradiated to include the first area A1
- the second output light signal is irradiated to include the second area A2, so it includes the first area A1 and the second area A2.
- Depth information can be generated for the entire area.
- the camera device according to an embodiment of the present invention is applicable to AR glasses.
- the light emitted from the projector may affect the user's vision, so for eye-safety, technology is needed to prevent malfunction of the device in advance. .
- the object is to provide a separation detection device that detects separation.
- Figure 7 is a block diagram of a separation detection device according to an embodiment of the present invention
- Figures 8 to 11 are diagrams for explaining separation detection of the separation detection device according to an embodiment of the present invention.
- the separation detection device 1100 includes a detection pattern 1130 and a detection unit 1140, and the detection pattern 1130 is patterned on the first body 1110 and the second body 1120. It can be.
- the first body 1110 and the second body 1120 are joined to each other.
- the first body 1110 and the second body 1120 may be housings joined to each other.
- the first body 1110 and the second body 1120 are in a form that is engaged with or assembled with each other, and may be an internal housing to protect major core components or an external housing to form the exterior of the product.
- One of the first body 1110 and the second body 1120 may be a case that accommodates the product, and the other may be a cover that covers the case, and the case and the cover may form a housing.
- the first body 1110 and the second body 1120 may be joined to each other. They can be joined by welding, soldering or laser joining. When the first body 1110 and the second body 1120 are joined to each other, the first body 1110 and the second body 1120 may be devices that must be maintained without separation.
- the first body 1110 and the second body 1120 form at least a part of the housing of the first transmitting and receiving device 100 included in the camera device 1, or are included in the camera device 1. It may form at least a part of the housing of the second transmitting and receiving device 200.
- the first body 1110 and the second body 1120 form at least a part of the housing of the first light emitting unit 110 of the first transmitting and receiving device 100 included in the camera device 1, or the camera device 1 It may form at least a part of the housing of the second light emitting unit 210 of the second transmitting and receiving device 200 included in (1).
- the first body 1110 and the second body 1120 form at least a part of the housing of the lens assembly of the first light emitting unit 110 of the first transmitting and receiving device 100 included in the camera device 1.
- the first body 1110 and the second body 1120 may be a housing of a projector mounted on the AR glasses.
- the first body 1110 may be a case of a projector of AR glasses
- the second body 1120 may be a cover of a projector of AR glasses.
- the case and cover may be combined with each other to form a housing.
- the light emitted from the projector must be controlled, but if the housing is separated due to an external impact, strong light may be emitted, and AR glasses may affect the user's vision, so maintaining the housing's adhesion is important. do.
- the housing may be a housing of a device that must maintain bonding without being spaced apart.
- it may be a housing in which parts that need to be kept secure are built in, or it may be a housing for a device that needs to prevent intentional disassembly attempts.
- the detection pattern 1130 is patterned across the first body 1110 and the second body 1120 at the junction of the first body 1110 and the second body 1120. In order to detect whether the bonding of the first body 1110 and the second body 1120 is maintained or whether they are separated, a detection pattern 1130 is formed at the bonding area of the first body 1110 and the second body 1120. At this time, the detection pattern 1130 is patterned across the first body 1110 and the second body 1120.
- the detection pattern 1130 may be patterned using a Laser Direct Structuring (LDS) method.
- LDS is formed through the process of patterning the surface of a plastic injection molded product using a laser and plating a metal material. Fine patterning is possible through LDS patterning, and electrical patterns can be formed on the first body 1110 and the second body 1120.
- the sensing pattern 1130 may be formed by patterning on the first body 1110 and the second body 1120 in various other ways.
- the sensing pattern 1130 may include at least one cross pattern connected across the first body 1110 and the second body 1120.
- the first body 1110 and the second body 1120 are bonded to each other, and the first body 1110 and the second body 1120 are bonded to each other. It may contain cross patterns that are connected across. In a form that crosses the first body 1110 and the second body 1120, when the first body 1110 and the second body 1120 are joined, the cross pattern can be maintained as one pattern, When the first body 1110 and the second body 1120 are separated, the cross pattern is also separated, making it impossible to maintain one pattern.
- the detection pattern 1130 includes a first pattern 1131 patterned on the first body 1110 and a second pattern 1132 patterned on the second body 1120, and the first pattern 1131 and the second pattern 1132 The pattern 1132 may be connected through at least one contact point 1133.
- the detection pattern 1130 forms a first pattern 1131 and a second pattern 1132 on the first body 1110 and the second body 1120, respectively, and the first body 1110 and the second body 1120 ), the first pattern 1131 and the second pattern 1132 may be connected through the contact point 1133.
- the contact point 1133 may include at least one contact point 1133 and may include a plurality of contact points 1133. Through the plurality of contact points 1133, the range of the area in which separation of the first body 1110 and the second body 1120 is detected can be expanded.
- the first body 1110 and the second body 1120 may be completely separated, but separation may occur only in some areas.
- separation of the separation detection device 1100 can be detected by disposing a plurality of contact points 1133 across the joint area of the first body 1110 and the second body 1120.
- the sensing pattern 1130 may be patterned in a meander shape or zig-zag shape formed across the first body 1110 and the second body 1120. As shown in FIG. 9, it may be patterned in a meander shape that repeatedly crosses the first body 1110 and the second body 1120. Through this, the sensing pattern 1130 can form a plurality of contact points 1133. Meander-shaped patterning may be formed throughout the joint area between the first body 1110 and the second body 1120. Through this, one loop can be formed, but multiple contact points can be formed.
- the detection unit 1140 is electrically connected to the detection pattern 1130 and detects separation of the detection pattern 1130.
- the detection pattern 1130 is an electrically conductive pattern, and the detection unit 1140 is electrically connected to the detection pattern 1130 and detects separation of the detection pattern 1130 by allowing current to flow through the detection pattern 1130. can do.
- the sensing unit 1140 measures the resistance of the sensing pattern 1130 and can detect separation of the first body 1110 and the second body 1120 according to a change in resistance.
- the detection unit 1140 can apply a signal to the detection pattern 1130, flow through the detection pattern 1130, detect the signal output from the detection pattern 1130, and measure the resistance of the detection pattern 1130. there is.
- the sensing unit 1140 may be electrically connected to the sensing pattern 1130 through at least two connection ports.
- One connection port may be an output port that outputs a signal as the detection pattern 1130, and the other connection port may be an input port that receives a signal from the detection pattern 1130.
- the detection unit 1140 may be an MCU (Micro Controller Unit), and the connection port may use PA0 and PB0, as shown in FIG. 9.
- PA0 and PB0 may be ADC or DAC ports, and convert a digital signal into an analog signal and output it as a detection pattern 1130, and convert the analog signal input from the detection pattern 1130 into a digital signal to produce a detection pattern 1130. resistance can be measured.
- the resistance of the sensing pattern 1130 may vary depending on the resistance characteristics of the material patterned with the conductive pattern and the length of the pattern.
- the detection unit 1140 applies a signal to the detection pattern 1130 when the first body 1110 and the second body 1120 are joined and uses the signal output from the detection pattern 1130 to detect the detection pattern 1130. ) can be measured, and the measured resistance can be set as the reference resistance.
- the detection unit 1140 may measure the resistance of the detection pattern 1130 in real time or periodically and detect a change in resistance by comparing the measured resistance with a reference resistance. When the first body 1110 and the second body 1120 are separated, the resistance may increase, and when the difference in resistance is outside the critical range, the detection unit 1140 detects the first body 1110 and the second body 1120.
- (1120) can be judged to be separated.
- the loop of the sensing pattern 1130 is released and opened so that no current flows, and the sensing unit 1140 is connected to the first body 1110 and the second body 1120. It may be determined that the second body 1120 has been separated.
- the sensing unit 1140 determines that the first body 1110 and the second body 1120 are separated. You can judge. For example, when the sensing pattern 1130 is not conducting for more than 1 ms, the sensing unit 1140 may determine that the first body 1110 and the second body 1120 are separated.
- the first body 1110 and the second body 1120 each include surfaces that face each other and contact each other, and the sensing pattern 130 includes at least one first body disposed on the surface 1111 of the first body that faces and contacts each other. It is disposed on the surface of the second body 1120 facing the contact point 1134 and contacting each other, and may include at least one second contact point (not shown) corresponding to the first contact point 1134.
- the sensing pattern 1130 may be damaged.
- the sensing pattern 1130 may be formed on a surface where the first body 1110 and the second body 1120 contact each other, as shown in FIG. 10 .
- a pattern can be formed on a surface that faces each other and is directly joined, and a contact point can be formed on that surface.
- a circular first contact point 1134 may be formed on the joint surface 1111 of the first body 1110, and a corresponding second contact point may be formed on the second body 1120.
- the first contact point 1134 and the second contact point are joined, they may be made of a material that is fused together and integrated, but is easily separated.
- the integrated first contact point 1134 and the second contact point may be separated, and at this time, the first contact point 1134 or the second contact point may have a physical Damage may occur, making reconnection difficult.
- first body 1110 and the second body 1120 are intentionally disassembled, etc.
- operation can be permanently disabled.
- permanent operation is impossible according to the separation judgment of the detection unit 1140, this is possible only when the detection unit 1140 is operating, and when the operation of the detection unit 1140 is stopped during intentional disassembly, hacking etc. may be possible.
- permanent inoperability can be realized without detecting the separation of the detection unit 1140.
- the detection pattern 1130 includes a plurality of detection patterns connected to the detection unit 1140 to form a loop, and the plurality of detection patterns may each have different patterning positions.
- One sensing pattern 1130 can form one loop, and as shown in FIG. 9, even if a plurality of contact points are formed, when separation of the first body 1110 and the second body 1120 occurs at each contact point. , it is only possible to determine whether separation occurred, but it is difficult to detect at which contact point the separation occurred.
- a plurality of detection patterns 1510 to 1540 each forming a loop are formed, and the positions of the contact points of each detection pattern 1130 are formed differently from each other to detect each detection pattern.
- the separation area detected by the pattern can be set differently.
- the detection unit 1140 may include two input/output ports for each detection pattern. Alternatively, it may include one output port that outputs a signal to each detection pattern (1510 to 1540) and a plurality of input ports that receive signals from each detection pattern (1510 to 1540). In this way, the resistance can be measured independently for each detection pattern (1510 to 1540), and it is possible to determine which detection pattern separation occurred through comparison with each reference resistance.
- 7 to 11 show that the first body 1110 and the second body 1120 are joined on one side, but the bonding can be done on two or more sides, and a detection pattern is formed on each side where the bonding occurs. It is possible to determine which of the joint surfaces separation occurs.
- separation is detected using a detection pattern, and if an intentional attempt is made to disassemble the device, the operation of the product can be permanently disabled, and damage to the housing is electrically monitored in situations of physical shock, including a drop. And, if a safety problem, including eye-safety, occurs, malfunction of the device can be prevented in advance. In the case of normal disassembly rather than intentional disassembly, permanent operation stoppage can be lifted by using the Security Code for disassembly of the device through a pre-approved procedure.
- the round part of the contact point is manufactured to physically separate well, as shown in Figure 10, even without detection by the detection unit 1140, and is first disassembled. This can cause the pattern to be physically damaged.
- an electrical contact is made using LDS so that it can be connected to the joint of the housing that is mechanically disassembled. It can be applied to the manufactured device, and the connection status is checked electrically.
- the contact points of both housings are connected and electricity is conducted, it operates normally, and the contact point temporarily drops and the electricity is not conducted for a certain period of time. For example, if it lasts for more than 1 msec, it can act as an E-Fuse (hereinafter referred to as an Electrical-Fuse) to permanently disable operation depending on the conditions.
- E-Fuse hereinafter referred to as an Electrical-Fuse
- the detection unit 1140 which is an MCU, can be set so that the E-Fuse does not operate even if the housing is disassembled (even if the contact point is opened) by entering a predetermined Security Code through an external communication interface. If you intentionally attempt to disassemble it for the purpose of monitoring mechanical or electrical movement, it can be permanently rendered inoperable, and important core parts use a lot of contact points, so even a small gap is widened by artificial force. can be detected.
- the detection unit 1140 may be an independent MCU for the separation detection device 1100 or may be the control unit 400 of the camera device 1.
- FIG 12 is a block diagram of an electronic device according to an embodiment of the present invention.
- the electronic device 1200 according to an embodiment of the present invention includes a first body 1110, a second body 1120 joined to the first body 1110, and an interior of the first body 1110 or the second body 1120.
- An internal element 1210 disposed in, a control unit 1220 for controlling the internal element 1210, and a first body 1110 and a second body ( It includes a detection pattern 1130 patterned across 1120).
- the control unit 1220 is electrically connected to the detection pattern 1130 and detects separation of the detection pattern 1130.
- the detailed description of each component of the electronic device 1200 according to the embodiment of the present invention corresponds to the detailed description of the separation detection device of FIGS. 7 to 11, and redundant description will be omitted below.
- the internal elements 1210 may be disposed in the internal space formed by the first body 1110 and the second body 1120, and may be modules or elements that are driven in the electronic device.
- the internal element 1210 may be protected through the first body 1110 and the second body 1120.
- the internal element 1210 may be a module or device that must stop operating when the first body 1110 and the second body 1120 are separated. In this case, the internal element 1210 of the first body 1110 and the second body 1120 It may be placed in a location other than the interior space.
- the electronic device is the first transmitting and receiving device 100 or the second transmitting and receiving device 200 in the camera device 1, the internal element 1210 is included in the first transmitting and receiving device 100.
- the electronic device is the first light emitting unit 110 of the first transceiving device 100 in the camera device 1 or the second light emitting unit 210 of the second transceiving device 200.
- the internal element 1210 may be an internal element included in the first light emitting unit 110 or an internal element included in the second light emitting unit 210.
- the detection pattern 1130 includes a first pattern 1131 patterned on the first body 1110 and a second pattern 1132 patterned on the second body 1120, and the first pattern 1131 and the second pattern 1132 are patterned on the second body 1120.
- the two patterns 1132 may be connected through at least one contact point 1133, and the detection pattern 1130 may be patterned using a Laser Direct Structuring (LDS) method.
- the detection pattern 1130 may include at least one cross pattern connected across the first body 1110 and the second body 1120, and the first body 1110 and the second body 1120 ) may be patterned in a meander shape or zigzag shape formed across.
- first body 1110 and the second body 1120 each include surfaces that face each other and contact each other, and the sensing pattern 1130 is disposed on the surface of the first body 1110 that faces and contacts each other. is disposed on the surface of the first contact point 1134 and the second body 1120 facing each other, and includes at least one second contact point corresponding to the first contact point 1134, and the first contact point or the second contact point. The pattern may be damaged when separated after being bonded together.
- the sensing pattern 1130 includes a plurality of sensing patterns forming a loop, and the plurality of sensing patterns may each have different patterning positions.
- the control unit 1220 measures the resistance of the detection pattern 1130, detects separation of the first body 1110 and the second body 1120 according to the change in resistance, and detects separation of the detection pattern 1130. If so, the operation of the internal element 1210 can be stopped. Additionally, when the control unit 1220 detects separation of the sensing pattern 1130, it can block the internal element 210 from restarting to permanently prevent it from operating.
- control unit 1220 may be an independent MCU for the electronic device 1200 or the control unit 400 of the camera device 1.
- a camera device may refer to a camera device that extracts depth information using a structured light method. That is, the camera device according to an embodiment of the present invention may use structured light having a predetermined pattern as an output light signal and generate depth information using disparity of the structured light.
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Abstract
Description
Claims (10)
- 제1 출력광 신호를 출력하는 제1 발광부, 및 상기 제1 출력광 신호가 객체로부터 반사된 제1 입력광 신호를 수신하는 제1 수광부를 포함하는 제1 송수신 장치;제2 출력광 신호를 출력하는 제2 발광부, 및 상기 제2 출력광 신호가 상기 객체로부터 반사된 제2 입력광 신호를 수신하는 제2 수광부를 포함하는 제2 송수신 장치;상기 제1 수광부에 수신된 상기 제1 입력광 신호 및 상기 제2 수광부에 수신된 제2 입력광 신호를 이용하여 상기 객체에 대한 깊이 정보를 생성하는 깊이 정보 생성부; 그리고상기 제1 송수신 장치, 상기 제2 송수신 장치 및 상기 깊이 정보 생성부를 제어하는 제어부를 포함하고,상기 제1 입력광 신호는 상기 객체의 제1 영역에 대한 입력광 신호이고, 상기 제2 입력광 신호는 상기 객체의 제2 영역에 대한 입력광 신호이며,상기 깊이 정보는 상기 제1 영역 및 상기 제2 영역이 서로 중첩되는 상기 객체의 중첩 영역에 대한 제1 깊이 정보 및 상기 제1 영역 및 상기 제2 영역이 서로 중첩되지 않는 상기 객체의 비중첩 영역에 대한 제2 깊이 정보를 포함하며,상기 제1 깊이 정보의 해상도는 상기 제2 깊이 정보의 해상도보다 높은 카메라 장치.
- 제1항에 있어서,상기 중첩 영역은 상기 비중첩 영역 사이에 배치되는 카메라 장치.
- 제2항에 있어서,상기 제1 깊이 정보는 상기 중첩 영역에 대한 상기 제1 입력광 신호 및 상기 제2 입력광 신호의 합성에 의하여 생성된 카메라 장치.
- 제1항에 있어서,상기 제1 출력광 신호의 광 분포는 상기 제1 영역의 중심에 대하여 비대칭이고, 상기 제2 출력광 신호의 광 분포는 상기 제2 영역의 중심에 대하여 비대칭인 카메라 장치.
- 제4항에 있어서,상기 제1 발광부 및 상기 제2 발광부는 각각 광원 및 상기 광원 상에 배치된 확산부재를 포함하는 카메라 장치.
- 제1항에 있어서,상기 제어부는 상기 제1 발광부 및 상기 제2 발광부가 교대로 온/오프되도록 제어하는 카메라 장치.
- 제6항에 있어서,상기 제1 수광부의 광축과 상기 제2 수광부의 광축은 서로 평행하고, 상기 제1 발광부의 광축과 상기 제1 수광부의 광축은 서로 평행하지 않으며, 상기 제2 발광부의 광축과 상기 제2 수광부의 광축은 서로 평행하지 않은 카메라 장치.
- 제1항에 있어서,상기 제1 수광부 및 상기 제2 수광부 사이에 배치되며, 상기 제1 수광부의 광축 및 상기 제2 수광부의 광축이 이루는 각도를 조절하는 각도 조절 부재를 더 포함하고,상기 제1 수광부의 광축 및 상기 제2 수광부의 광축이 이루는 각도에 따라 상기 중첩 영역의 범위가 달라지는 카메라 장치.
- 제8항에 있어서,상기 제어부는 상기 각도 조절 부재를 제어하는 카메라 장치.
- 제9항에 있어서,상기 제1 발광부의 광축과 상기 제1 수광부의 광축은 서로 평행하고, 상기 제2 발광부의 광축과 상기 제2 수광부의 광축은 서로 평행한 카메라 장치.
Priority Applications (4)
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| US18/993,658 US20260009906A1 (en) | 2022-08-11 | 2023-08-10 | Camera device |
| CN202380059143.7A CN119768728A (zh) | 2022-08-11 | 2023-08-10 | 摄像头装置 |
| JP2025503423A JP2025526569A (ja) | 2022-08-11 | 2023-08-10 | カメラ装置 |
| EP23853025.7A EP4571391A4 (en) | 2022-08-11 | 2023-08-10 | CAMERA DEVICE |
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| KR10-2022-0100642 | 2022-08-11 | ||
| KR1020220100642A KR20240022226A (ko) | 2022-08-11 | 2022-08-11 | 카메라 장치 |
| KR1020220107185A KR20240028877A (ko) | 2022-08-25 | 2022-08-25 | 분리감지장치 |
| KR10-2022-0107185 | 2022-08-25 |
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| EP (1) | EP4571391A4 (ko) |
| JP (1) | JP2025526569A (ko) |
| CN (1) | CN119768728A (ko) |
| WO (1) | WO2024035157A1 (ko) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200046861A (ko) * | 2018-10-26 | 2020-05-07 | 엘지전자 주식회사 | 카메라, 및 이를 구비하는 단말기 |
| KR20200108736A (ko) * | 2019-03-11 | 2020-09-21 | 엘지이노텍 주식회사 | 카메라 모듈 |
| KR20210095842A (ko) * | 2020-05-26 | 2021-08-03 | 엘지이노텍 주식회사 | 센서 모듈 및 이를 포함하는 3차원 영상 |
| WO2021220862A1 (ja) * | 2020-04-27 | 2021-11-04 | ソニーセミコンダクタソリューションズ株式会社 | 測距装置 |
| KR102369792B1 (ko) * | 2015-03-05 | 2022-03-03 | 한화테크윈 주식회사 | 촬영 장치 및 촬영 방법 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7417717B2 (en) * | 2005-10-05 | 2008-08-26 | Utah State University | System and method for improving lidar data fidelity using pixel-aligned lidar/electro-optic data |
| DE102017101791B4 (de) * | 2017-01-31 | 2020-03-26 | Valeo Schalter Und Sensoren Gmbh | Optoelektronische Sensoreinrichtung für ein Kraftfahrzeug und Kraftfahrzeug |
| US11348269B1 (en) * | 2017-07-27 | 2022-05-31 | AI Incorporated | Method and apparatus for combining data to construct a floor plan |
| WO2019140792A1 (zh) * | 2018-01-17 | 2019-07-25 | 上海禾赛光电科技有限公司 | 一种探测设备及其参数调整方法 |
| JP2020060401A (ja) * | 2018-10-09 | 2020-04-16 | ソニーセミコンダクタソリューションズ株式会社 | 測距装置、及び検出方法 |
| EP3855219B1 (en) * | 2020-01-21 | 2024-09-18 | Focuslight Technologies Inc. | Diffuser device |
-
2023
- 2023-08-10 US US18/993,658 patent/US20260009906A1/en active Pending
- 2023-08-10 CN CN202380059143.7A patent/CN119768728A/zh active Pending
- 2023-08-10 JP JP2025503423A patent/JP2025526569A/ja active Pending
- 2023-08-10 EP EP23853025.7A patent/EP4571391A4/en active Pending
- 2023-08-10 WO PCT/KR2023/011834 patent/WO2024035157A1/ko not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102369792B1 (ko) * | 2015-03-05 | 2022-03-03 | 한화테크윈 주식회사 | 촬영 장치 및 촬영 방법 |
| KR20200046861A (ko) * | 2018-10-26 | 2020-05-07 | 엘지전자 주식회사 | 카메라, 및 이를 구비하는 단말기 |
| KR20200108736A (ko) * | 2019-03-11 | 2020-09-21 | 엘지이노텍 주식회사 | 카메라 모듈 |
| WO2021220862A1 (ja) * | 2020-04-27 | 2021-11-04 | ソニーセミコンダクタソリューションズ株式会社 | 測距装置 |
| KR20210095842A (ko) * | 2020-05-26 | 2021-08-03 | 엘지이노텍 주식회사 | 센서 모듈 및 이를 포함하는 3차원 영상 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN119768728A (zh) | 2025-04-04 |
| US20260009906A1 (en) | 2026-01-08 |
| EP4571391A1 (en) | 2025-06-18 |
| JP2025526569A (ja) | 2025-08-15 |
| EP4571391A4 (en) | 2025-12-03 |
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