WO2018038347A2 - Système laser pouvant régler la forme d'un faisceau laser - Google Patents

Système laser pouvant régler la forme d'un faisceau laser Download PDF

Info

Publication number
WO2018038347A2
WO2018038347A2 PCT/KR2017/004183 KR2017004183W WO2018038347A2 WO 2018038347 A2 WO2018038347 A2 WO 2018038347A2 KR 2017004183 W KR2017004183 W KR 2017004183W WO 2018038347 A2 WO2018038347 A2 WO 2018038347A2
Authority
WO
WIPO (PCT)
Prior art keywords
laser beam
shape
adjusting
laser
galvo mirror
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2017/004183
Other languages
English (en)
Korean (ko)
Other versions
WO2018038347A3 (fr
Inventor
정재훈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Das Design Co ltd
Original Assignee
Das Design Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Das Design Co ltd filed Critical Das Design Co ltd
Publication of WO2018038347A2 publication Critical patent/WO2018038347A2/fr
Publication of WO2018038347A3 publication Critical patent/WO2018038347A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/101—Scanning systems with both horizontal and vertical deflecting means, e.g. raster or XY scanners
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/12—Scanning systems using multifaceted mirrors
    • G02B26/124—Details of the optical system between the light source and the polygonal mirror
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/101—Lasers provided with means to change the location from which, or the direction in which, laser radiation is emitted
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/105—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/105—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
    • H01S3/1051—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length one of the reflectors being of the type using frustrated reflection

Definitions

  • the present invention relates to a laser system capable of adjusting the shape of a laser beam, and in detail, the shape of the laser beam implemented in the air or the screen can be variously implemented according to a user's selection of a point, a line, a specific shape, or a background.
  • the present invention relates to a laser system capable of controlling the shape of a laser beam that can realize a laser beam image from a long distance as well as a short distance by variously adjusting the size of the laser beam.
  • a display element such as a cathode ray tube (CRT), a liquid crystal display (LCD), a liquid crystal on silicon (LCoS), or a digital light processing (DLP)
  • CTR cathode ray tube
  • LCD liquid crystal display
  • LCDoS liquid crystal on silicon
  • DLP digital light processing
  • a projector using a laser is also being developed.
  • Such a laser projector has been initially developed for a laser show.
  • 1 is a view showing the principle of a general laser projector.
  • the laser projector 10 expresses an image by a laser beam.
  • the laser projector 10 scans a laser beam on a screen 20 for each line (horizontal line) in a similar principle to a Cathode Ray Tube (CRT). After scanning of a certain line (that is, one screen) is completed, the scanning method returns to the position of the first line again to form the next screen.
  • CTR Cathode Ray Tube
  • the shape of the laser beam implemented in the air or the screen may be variously implemented according to a user's selection of a point, a line, a specific shape, or a background. It is an object of the present invention to provide a laser system capable of adjusting the shape of a laser beam that can implement a laser beam image.
  • the image processing unit for processing the image signal input from the outside as a digital format RGB signal, and synthesizes the processed RGB signal and outputs the laser signal; At least one laser beam generator for emitting a laser beam according to the RGB signal extracted by the image processor; At least one galvo mirror unit configured to adjust the scanning direction of the laser beam so that the laser beam is reflected toward the air or the screen at a specific position; And at least one laser beam shape control positioned between the laser beam generating unit and the galvo mirror unit and adjusting the shape or size by predetermined information while the laser beam emitted from the laser beam generating unit is transmitted along the laser beam path. It is preferable to include a part.
  • the present invention can implement the shape of the laser beam implemented in the air or the screen through the laser beam shape control unit in a variety of points, lines, specific shapes, or the background according to the user's selection, and variously control the size of the laser beam Therefore, the laser beam image can be realized at a long distance as well as a short distance.
  • the components forming the laser beam shape control unit may be selectively replaced or superimposed as necessary to enable the laser beam to be used in various forms.
  • the scanning direction of the laser beam may be adjusted at various angles through the galvo mirror unit, and thus the positional change of the laser beam may be variously adjusted when the laser show is implemented in the air.
  • 1 is a view showing the principle of a general laser projector.
  • Figure 2 schematically shows the configuration of a laser system capable of adjusting the shape of the laser beam according to the first embodiment of the present invention.
  • FIG. 3 schematically illustrates the size of a laser beam transmitted through a focal variable lens.
  • FIG 4 schematically shows an example of the shape of the laser beam via the spatial light modulator.
  • FIG. 5 schematically illustrates a configuration of a laser system capable of adjusting the shape of a laser beam according to a second embodiment of the present invention.
  • Figure 6 schematically shows the shape of the laser beam reflected from the deformation mirror.
  • FIG. 7 schematically illustrates a configuration of a laser system capable of adjusting the shape of a laser beam according to a third embodiment of the present invention.
  • FIG. 8 schematically illustrates a third modification of the laser beam shape adjusting unit in the laser system capable of adjusting the shape of the laser beam according to the fourth embodiment of the present invention.
  • FIG. 9 schematically illustrates a configuration of a laser system capable of adjusting the shape of a laser beam according to a fifth embodiment of the present invention.
  • the image processing unit for processing the image signal input from the outside as a digital format RGB signal, and synthesizes the processed RGB signal and outputs the laser signal; At least one laser beam generator for emitting a laser beam according to the RGB signal extracted by the image processor; At least one galvo mirror unit configured to adjust the scanning direction of the laser beam so that the laser beam is reflected toward the air or the screen at a specific position; And at least one laser beam shape control positioned between the laser beam generating unit and the galvo mirror unit and adjusting the shape or size by predetermined information while the laser beam emitted from the laser beam generating unit is transmitted along the laser beam path. It is preferable to include a part.
  • the laser beam shape adjustment unit the focus variable lens for adjusting the size of the laser beam by adjusting the focal length; A diffraction optical element for adjusting the laser beam to a predetermined specific shape; And a spatial light modulator for adjusting the laser beam to a predetermined shape or size by phase modulation or amplitude modulation, wherein the laser beam path passes through the focal variable lens, the diffractive optical element, and the spatial light modulator sequentially. It is preferable that it is a path through which the mirror part is transmitted.
  • the laser beam shape control unit a spot beam forming a highlight in the air or the screen, and a background beam forming the highlight periphery, a deformation mirror for adjusting the shape of the laser beam; A diffraction optical element for adjusting the laser beam to a predetermined specific shape; And a spatial light modulator for adjusting the laser beam to a predetermined shape or size by phase modulation or amplitude modulation.
  • the laser beam path is preferably a path in which the laser beam is sequentially reflected in the deformation mirror, the diffraction optical element and the spatial light modulator and transmitted to the galvo mirror.
  • the laser beam path is a path that is transmitted to the galvo mirror portion through the spatial light modulator after being reflected by the diffraction optical element after the laser beam is reflected in the deformation mirror, and reflected by the diffraction optical element desirable.
  • the laser beam path is preferably a path through which the laser beam reflected from the deformation mirror passes through the diffractive optical element and the spatial light modulator sequentially to the galvo mirror.
  • the galvo mirror unit the first galvo mirror unit for adjusting the horizontal scanning direction of the laser beam irradiated from the laser beam shape control unit; And a second galvo mirror unit that reflects the laser beam to the air or the screen by adjusting the vertical scanning direction of the laser beam reflected from the first galvo mirror unit.
  • the laser system 100 capable of adjusting the shape of a laser beam includes an image processing unit 110, a laser beam generating unit 120, a laser beam shape adjusting unit 130, and a galvo mirror unit 140. ) And control unit (160).
  • the present invention is a device that is implemented in the air or the screen 150 while the laser beam (L) is adjusted in size and shape with a free angle change.
  • the image processor 110 processes the image signal input from the outside as an RGB signal in a digital format, synthesizes the processed RGB signal and outputs the laser signal.
  • the laser signal output from the image processor 110 is provided to the at least one laser beam generator 120.
  • the laser beam generator 120 emits a laser beam L according to the RGB signal extracted by the image processor 110.
  • the laser beam generator 120 includes three laser diodes of red, green, and blue, respectively, and emits laser beams corresponding to red, green, and blue according to the RGB signal extracted by the image processor.
  • the laser beam shape adjusting unit 130 is connected to the laser beam generating unit 120.
  • the laser beam L emitted from the laser beam generator 120 is transmitted to the laser beam shape control unit 130.
  • the laser beam shape adjusting unit 130 is positioned between the laser beam generating unit 120 and the galvo mirror unit 140.
  • the laser beam (L) is transmitted along the laser beam path, and the shape and size of the laser beam shape control unit is modified and modified in various shapes according to the predetermined information. Is delivered to the galvo mirror 140.
  • the size refers to the laser beam area in which the laser beam L is embodied in the air or the screen 150.
  • the predetermined information refers to the shape, size, and speed information of the laser beam L preset in the controller 160.
  • the laser beam shape control unit 130 is composed of a focal variable lens 131, a diffraction optical element 132 and a spatial light modulator 133.
  • the focal variable lens 131, the diffractive optical element 132, and the spatial light modulator 133 have a form in which the laser beam L is transmitted.
  • the laser beam path is a path through which the laser beam L is sequentially transmitted through the focal variable lens 131, the diffraction optical element 132, and the spatial light modulator 133 to transmit the galvo mirror unit 140.
  • the focus variable lens 131 adjusts the size of the laser beam L by adjusting the focal length under the control of the controller 160.
  • the size of the laser beam L may vary while the laser beam L emitted from the laser beam generator 120 passes through the focal variable lens 131.
  • the controller 160 controls the operation of the focus variable lens 131 so that the focal length is increased according to the signal input from the image processor 110.
  • the controller 160 controls the operation of the focus variable lens 131 so that the focal length is shortened.
  • the diffractive optical element 132 deforms the shape of the transmitted laser beam L into a predetermined specific shape.
  • the specific shape may be variously changed by replacing the diffractive optical element 132.
  • the spatial light modulator 133 controls the shape and / or size of the laser beam L in a process in which the incident laser beam L is transmitted by adjusting phase modulation or amplitude modulation under the control of the controller 160. It may be adjusted to the shape or size preset in (160). In addition, the spatial light modulator 133 may adjust an image conversion speed of the laser beam L that is transmitted.
  • the laser beam L may be implemented in various shapes, for example, a simple dot shape, a heart shape, a star shape, a character shape, or a hologram, as shown in FIG. 4 while transmitting the spatial light modulator 133.
  • the galvo mirror 140 adjusts the scanning direction of the laser beam L emitted from the laser beam shape adjusting unit 130 and reflects it into the air or the screen 150.
  • the galvo mirror unit 140 includes a first galvo mirror unit 141 and a second galvo mirror unit 142.
  • the first galvo mirror unit 141 reflects the second galvo mirror unit 142 by adjusting the horizontal scanning direction of the laser beam L irradiated from the laser beam shape adjusting unit 130.
  • the first galvo mirror 141 includes a first galvo mirror 141a.
  • the first galvo mirror 141 rotates the first galvo mirror 141a in the x-axis direction under the control of the controller 160, and reflects the laser beam L reflected by the first galvo mirror 141a according to the degree of rotation.
  • Horizontal scanning direction can be adjusted in multiple angles.
  • the second galvo mirror 142 adjusts the vertical scan direction of the laser beam L reflected by the first galvo mirror 141 to reflect the laser beam L into the air or the screen 150.
  • the second galvo mirror 142a is connected to the second galvo mirror 142.
  • the second galvo mirror unit 142 rotates the second galvo mirror 142a in the y-axis direction under the control of the controller 160, and reflects the laser beam L reflected by the second galvo mirror 142a according to the degree of rotation. ) Can be adjusted in multiple angles.
  • the controller 160 controls the overall operation of the laser system 100 capable of adjusting the shape of the laser beam.
  • the controller 160 controls the operations of the laser beam shape control unit 130 so that the shape and size of the laser beam L are adjusted by the laser beam shape control unit 130 according to the signal input from the image processing unit 110.
  • the controller 160 may control the rotation angle of the first galvo mirror 141 and / or the rotation angle of the second galvo mirror 142 according to the signal input from the image processor 110.
  • the laser system 100a capable of adjusting the shape of a laser beam according to the second embodiment of the present invention includes an image processing unit 110, a laser beam generating unit 120, a laser beam shape adjusting unit 130a, a galvo mirror unit 140, and a controller ( 160).
  • the image processor 110, the laser beam generator 120, the galvo mirror 140, and the controller 160 may include the image processor 110 and the laser beam generator 120 of the first embodiment. And control unit 160 are substantially the same.
  • the laser beam shape control unit 130a having a configuration different from that of the first embodiment will be described.
  • the laser beam shape adjusting unit 130a includes a deformation mirror 131a, a diffraction optical element 132a, and a spatial light modulator 133a.
  • the deformable mirror 131a, the diffractive optical element 132a, and the spatial light modulator 133a have a form in which the incident laser beam L is reflected.
  • the laser beam path is a path in which the laser beam L is sequentially reflected by the deformation mirror 131a, the diffraction optical element 132a, and the spatial light modulator 133a and transmitted to the galvo mirror unit 140.
  • the deformable mirror 131a has a mirror shape controlled by the control unit 160.
  • the deformation mirror 131a may adjust the shape of the laser beam L by using the incident laser beam L as the spot beam L S and the background beam L B by the control signal of the controller 160.
  • the spot beam L S is formed while the laser beam L goes straight in a predetermined direction, and is a portion that forms a highlight when the laser beam L is irradiated into the air or the screen 150.
  • the background beam L B is formed to surround the spot beam L S in the process of emitting the laser beam L, and serves as a background for forming the periphery of the highlight when irradiated into the air or the screen 150.
  • the laser beam L incident on the deformation mirror 131a is reflected toward the diffractive optical element 132a.
  • the diffractive optical element 132a causes the incident laser beam L to be reflected and deformed into a predetermined specific shape.
  • the specific shape may be variously changed by replacing the diffractive optical element 132a.
  • the laser beam L reflected by the diffractive optical element 132a is reflected by the spatial light modulator 133a.
  • the spatial light modulator 133a controls the shape and / or size of the laser beam L in the process of reflecting the incident laser beam L by adjusting phase modulation or amplitude modulation by the control of the controller 160. It may be adjusted to the shape or size preset in (160).
  • the spatial light modulator 133a may adjust the image conversion speed of the reflected laser beam L.
  • the laser beam L may be implemented in various shapes, for example, a simple dot shape, a heart shape, a star shape, a character shape, or a hologram, while being reflected by the spatial light modulator 133a.
  • the laser beam L reflected by the spatial light modulator 133a is reflected by the galvo mirror unit 140.
  • the laser beam L emitted from the laser beam generator 120 is incident to the deformation mirror 131a along the laser beam path, and according to the shape of the deformation mirror 131a, the spot beam L S and the background beam L B ) is reflected in the form and is incident on the diffraction optical element 132a.
  • the laser beam L incident on the diffractive optical element 132a is reflected toward the spatial light modulator 133a in a specific shape provided in the diffractive optical element 132a.
  • the laser beam L incident to the spatial light modulator 133a is deformed at the size of the laser beam L or the laser image implementation speed according to the information set in the controller 160 and reflected toward the galvo mirror unit 140. .
  • the present invention implements a point, a line, a specific shape or a background according to preset information of the shape of the laser beam L through the laser beam shape adjusting unit 130a, and the laser beam L through the galvo mirror unit 140.
  • a laser beam (L) image having various shapes and sizes can be implemented in the air or the screen 150.
  • the laser system 100b capable of adjusting the shape of a laser beam according to the present embodiment includes an image processor 110, a laser beam generator 120, a laser beam shape controller 130b, a galvo mirror 140, and a controller ( 160).
  • the image processor 110, the laser beam generator 120, the galvo mirror 140, and the controller 160 according to the present exemplary embodiment may include the image processor 110 and the laser beam generator 120 of the second embodiment.
  • control unit 160 are substantially the same.
  • the laser beam shape adjusting unit 130b different from the above-described second embodiment will be described.
  • the laser beam shape adjusting unit 130b includes a deformation mirror 131b, a diffraction optical element 132b, and a spatial light modulator 133b.
  • the functions of the deformation mirror 131b and the diffractive optical element 132b of this embodiment are as described in the above-described embodiment.
  • the deformable mirror 131b and the diffractive optical element 132b have a form in which the incident laser beam L is reflected.
  • the spatial light modulator 133b of the second embodiment described above reflects the laser beam L, but the spatial light modulator 133b of the present embodiment transmits the laser beam L.
  • the laser beam path according to the present embodiment has a structure in which the spatial light modulator 133b transmits the laser beam L, and thus has a laser beam path different from that of the second embodiment. That is, in the present embodiment, the laser beam path is sequentially reflected while the laser beam L emitted from the laser beam generator 120 is reflected through the deformable mirror 131b and the diffraction optical element 132b. It passes through the 133b) and is delivered to the galvo mirror 140.
  • the laser system 100c capable of adjusting the shape of the laser beam according to the present embodiment includes an image processing unit 110, a laser beam generating unit 120, a laser beam shape adjusting unit 130c, a galvo mirror unit 140, and a controller ( 160).
  • the image processor 110, the laser beam generator 120, the galvo mirror 140, and the controller 160 according to the present exemplary embodiment may include the image processor 110 and the laser beam generator 120 of the second embodiment.
  • control unit 160 are substantially the same.
  • the laser beam shape adjusting unit 130c different from the above-described second embodiment will be described.
  • the laser beam shape adjusting unit 130c includes a deformation mirror 131c, a diffraction optical element 132c, and a spatial light modulator 133c.
  • the functions of the deformation mirror 131c and the diffractive optical element 132c in this embodiment are as described in the above-described embodiment.
  • the deformation mirror 131c is a form in which the incident laser beam L is reflected.
  • the diffraction optical element 132c and the spatial light modulator 133c of the second embodiment described above reflect the laser beam L, but the diffraction optical element 132c and the spatial light modulator 133c of the present embodiment are laser.
  • the shape through which the beam L is transmitted may be applied.
  • the laser beam path according to the present embodiment has a structure in which the diffraction optical element 132c and the spatial light modulator 133c transmit the laser beam L, and thus have a laser beam path different from that of the second embodiment.
  • the laser beam path according to the present embodiment reflects the laser beam L emitted from the laser beam generator 120 in the deformable mirror 131c and sequentially passes through the diffraction optical element 132c and the spatial light modulator 133c. The path is delivered to the galvo mirror 140.
  • the laser system 200 capable of adjusting the shape of the laser beam according to the present embodiment includes an image processor 210, a plurality of laser beam generators 220a, 220b, and 220c, a plurality of laser beam shape adjusters 230a, 230b, 230c), a plurality of galvo mirrors 240a, 240b, 240c and a control unit 260.
  • the image processor 210, the laser beam generators 220a, 220b, and 220c, the galvo mirror units 240a, 240b, and 240c and the controller 260 perform the same functions as those of the first embodiment. do.
  • any one of the above-described first to fourth embodiments may be applied to the laser beam shape adjusting units 230a, 230b, and 230c.
  • the plurality of laser beam generating units 220a, 220b, and 220c are individually connected to the plurality of laser beam shape adjusting units 230a, 230b, and 230c.
  • the plurality of laser beam shape adjusting units 230a, 230b, and 230c are individually connected to the plurality of galvo mirror parts 240a, 240b, and 240c.
  • the plurality of laser beam generating units 220a, 220b, and 220c, the plurality of laser beam shape adjusting units 230a, 230b and 230c, and the plurality of galvo mirror units 240a, 240b and 240c are operated by the controller 260. Individually controlled.
  • the laser beams L emitted from each of the laser beam generators 220a, 220b, and 220c are passed through the laser beam shape control units 230a, 230b, and 230c and the galvo mirror units 240a, 240b, and 240c, respectively. It is implemented in the air or the screen 250.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Laser Beam Processing (AREA)

Abstract

Système laser pouvant régler la forme d'un faisceau laser, selon un mode de réalisation de la présente invention, comprenant de préférence: une unité de traitement d'image pour traiter un signal d'image entré depuis l'extérieur en un signal RGB dans un format numérique, synthétiser le signal RGB traité et délivrer en sortie le signal RGB synthétisé en tant que signal laser ; au moins une unité de production de faisceau laser pour émettre un faisceau laser selon le signal RGB extrait par l'unité de traitement d'image ; au moins une unité de miroir galvanométrique pour régler la direction de balayage du faisceau laser de telle sorte que le faisceau laser est réfléchi vers l'air ou l'écran dans une position spécifique ; et au moins une unité de réglage de forme de faisceau laser, positionnée entre l'unité de production de faisceau laser et l'unité de miroir galvanométrique, pour régler la forme ou la taille du faisceau laser par des informations prédéfinies tandis que le faisceau laser émis à partir de l'unité de production de faisceau laser est transmis le long d'un chemin de faisceau laser.
PCT/KR2017/004183 2016-08-23 2017-04-19 Système laser pouvant régler la forme d'un faisceau laser Ceased WO2018038347A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020160107072A KR20180022141A (ko) 2016-08-23 2016-08-23 레이저빔의 형상조절이 가능한 레이저시스템
KR10-2016-0107072 2016-08-23

Publications (2)

Publication Number Publication Date
WO2018038347A2 true WO2018038347A2 (fr) 2018-03-01
WO2018038347A3 WO2018038347A3 (fr) 2018-08-02

Family

ID=61245436

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2017/004183 Ceased WO2018038347A2 (fr) 2016-08-23 2017-04-19 Système laser pouvant régler la forme d'un faisceau laser

Country Status (2)

Country Link
KR (1) KR20180022141A (fr)
WO (1) WO2018038347A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210268607A1 (en) * 2018-07-05 2021-09-02 Hamamatsu Photonics K.K. Laser processing device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240162837A (ko) 2023-05-09 2024-11-18 박기한 노약자들을 위한 4륜 전동킥보드
KR102653135B1 (ko) 2024-01-18 2024-04-01 (주)피에이엔지니어링 속도 감지에 따른 보조 바퀴 제어가 가능한 전동 킥보드

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200198803Y1 (ko) * 2000-05-02 2000-10-02 함성근 레이저 빔을 이용한 프로젝터
KR100855814B1 (ko) * 2004-06-07 2008-09-01 삼성전기주식회사 스위칭 신호에 연동하여 순차 주사를 수행하는 주사 장치
KR100765765B1 (ko) * 2005-11-15 2007-10-15 삼성전자주식회사 프로젝터/프로젝션 겸용 디스플레이 장치
KR101165650B1 (ko) * 2007-01-30 2012-07-17 에프. 포스잣 후, 엘.엘.씨. 이미지 전달 장치
KR102046104B1 (ko) * 2013-03-19 2019-11-18 삼성전자주식회사 홀로그래픽 3차원 영상 디스플레이 장치 및 상기 홀로그래픽 3차원 영상 디스플레이 장치용 조광 유닛

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210268607A1 (en) * 2018-07-05 2021-09-02 Hamamatsu Photonics K.K. Laser processing device
US11872655B2 (en) * 2018-07-05 2024-01-16 Hamamatsu Photonics K.K. Laser processing device

Also Published As

Publication number Publication date
KR20180022141A (ko) 2018-03-06
WO2018038347A3 (fr) 2018-08-02

Similar Documents

Publication Publication Date Title
US9105215B2 (en) Image signal supply apparatus, image display apparatus, and control method of image signal supply apparatus
JPH08190072A (ja) 画像ディスプレイ装置
WO2018038347A2 (fr) Système laser pouvant régler la forme d'un faisceau laser
WO2018030632A1 (fr) Projecteur
US10055065B2 (en) Display system, projector, and control method for display system
WO2020075932A1 (fr) Appareil et procédé de génération d'une image tridimensionnelle
US11303867B2 (en) Method of controlling display system, display system, and method of controlling projector
JP4930115B2 (ja) 画像表示システム
WO2021128406A1 (fr) Système de suivi de globe oculaire d'un appareil d'affichage proche de l'œil, et appareil d'affichage proche de l'œil
CN105929623B (zh) 一种多屏投影设备及方法
WO2021128408A1 (fr) Système de suivi de globe oculaire d'un dispositif d'affichage à proximité de l'œil et dispositif d'affichage à proximité de l'œil
CN101339358B (zh) 电子装置及其使用方法
CN113281951B (zh) 一种投影设备、投影系统及投影方法
GB2142203A (en) Television projection apparatus
JP2006245737A (ja) 投影画像補正装置、投影画像補正方法及びプログラム
WO2023048409A1 (fr) Dispositif portable comprenant un dispositif de prise de vues et procédé associé de commande
WO2019160169A1 (fr) Dispositif d'affichage de lumière dirigée appliquant un procédé de multiplexage spatio-temporel
CN113467164A (zh) 投影机及投影方法
JP2009500651A (ja) 発散ビームによる走査レーザビーム画像投影のためのシステム及び対応する方法
CN214480802U (zh) 基于光同步的激光电视投影装置
KR100389866B1 (ko) 슬림형 프로젝터
JP2019212975A (ja) 投写型映像表示装置の制御装置、制御方法、プログラム、及び投写型映像表示システム
WO2017030318A1 (fr) Unité de commande de dispositif micromiroir numérique et son procédé de traitement de sortie d'image d'exposition
CN113219769A (zh) 光机模组和投影设备
JPS62233982A (ja) 画像表示装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17843767

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17843767

Country of ref document: EP

Kind code of ref document: A2