WO2007128189A1 - Caméra numérique - Google Patents

Caméra numérique Download PDF

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Publication number
WO2007128189A1
WO2007128189A1 PCT/CN2007/000993 CN2007000993W WO2007128189A1 WO 2007128189 A1 WO2007128189 A1 WO 2007128189A1 CN 2007000993 W CN2007000993 W CN 2007000993W WO 2007128189 A1 WO2007128189 A1 WO 2007128189A1
Authority
WO
WIPO (PCT)
Prior art keywords
digital camera
lens
reflective
semi
camera according
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/CN2007/000993
Other languages
English (en)
Chinese (zh)
Inventor
Jianqiang Wang
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.)
BEIJING ATHLETIC SPORTS INTERNATIONAL ECONOMICAL CONFERENCE SERVICE CENTER
Original Assignee
BEIJING ATHLETIC SPORTS INTERNATIONAL ECONOMICAL CONFERENCE SERVICE CENTER
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 BEIJING ATHLETIC SPORTS INTERNATIONAL ECONOMICAL CONFERENCE SERVICE CENTER filed Critical BEIJING ATHLETIC SPORTS INTERNATIONAL ECONOMICAL CONFERENCE SERVICE CENTER
Publication of WO2007128189A1 publication Critical patent/WO2007128189A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2101/00—Still video cameras

Definitions

  • the present invention relates to a digital camera.
  • digital single-lens reflex camera There are two types of digital cameras, one is a digital single-lens reflex camera and the other is a consumer digital camera.
  • digital single-lens reflex camera construction consists of a lens, a total reflection mirror, a CCD sensor, an optical viewfinder, and an LCD display.
  • EVF viewfinder EVF is essentially a kind of optical viewfinder
  • the mirror is turned on. At this time, the beam of the image passes through the lens and is all directed to the CCD sensor.
  • the disadvantage of this structure is that when the shutter is pressed before the view is taken, the beam of the image is completely blocked by the mirror, the CCD sensor cannot be sensitive, and the composition of the framing cannot be transmitted to the LCD display of the camera, so that the LCD display cannot be used as a viewfinder. , the photo quality cannot be previewed; at the same time, since the optical viewfinder and the EVF viewfinder cannot monitor the image when the shutter is opened, it is impossible to record moving images and continuous photographing under the monitor of the viewfinder, which limits the use of the camera. At the same time, there are two types of digital cameras that do not have built-in color filters that can be turned on and off, and cannot turn on and off the infrared night shot function.
  • the present invention adopts a semi-transparent reflective lens. Enables the camera to preview images through the LCD before the shutter is pressed, and can also record moving images and photographs under the surveillance of each viewfinder; in order to overcome the problem that the existing digital camera does not turn on and off the infrared night shot function, the present invention is in the digital The camera is equipped with an infrared filter that can be turned on and off, and the filter itself is also reflective, so the filter is essentially a type of semi-transparent mirror.
  • a digital camera comprising: a lens, a reflective lens group, an image sensor, an optical viewfinder, and an LCD display, wherein the reflective lens group includes at least one and a half Translucent reflective lens.
  • the image sensor is a CCD sensor or a CMOS sensor.
  • the mirror group contains 2-20 semi-transparent reflective lenses.
  • the retroreflective lens set also includes a fully reflective retroreflective lens.
  • the semi-transparent reflective lens is coated with a metal film or coated with a film.
  • the retroreflective lens set has a lens that transmits only infrared light.
  • the retroreflective lens set has a lens that transmits only visible light.
  • the optical viewfinder has a visor that is opened and closed in synchronization with the semi-transparent reflective lens.
  • the visor is mounted next to the optical viewfinder eyepiece or mounted next to the optical viewfinder optical image screen.
  • the number of visors is two, one visor is mounted next to the optical viewfinder eyepiece, and the other visor is mounted next to the optical viewfinder optical image screen.
  • the visor is made of a liquid crystal panel or an opaque panel.
  • the digital camera is also equipped with an infrared flash.
  • the digital camera is also equipped with an infrared illuminator.
  • the digital camera of the present invention replaces the opaque retroreflective lens originally used in a digital single lens mirror camera with a retroreflective lens set comprising at least one translucent retroreflective lens.
  • a portion of the image beam passes through the semi-transmissive reflective lens to the image sensor to produce an electronic image that can reach the LCD display, making the LCD a viewfinder.
  • Another portion of the light is reflected by the semi-transparent reflective lens to the optical viewfinder or EVF viewfinder. In this way, you can preview photos through the LCD viewfinder during framing, or you can record moving images and continuous photos under the supervision of the LCD or under the supervision of the optical viewfinder (including the EVF) viewfinder.
  • the image sensor uses a CCD sensor or a CMOS sensor.
  • the sensitivity of the image sensor is much higher than that of the conventional film, even if the semi-transparent reflective lens reflects a part of the light, the effect on the shooting is only half-speed or aperture, which affects the high-sensitivity digital camera. Not big. Therefore, it is usually possible to take a picture directly while the semi-transparent reflective lens is continuously closed. This semi-transparent reflective lens can also be turned on when taking high-quality photos or taking pictures in exceptionally low light. The quality of the picture at this time is exactly the same as that of the original total reflection mirror camera.
  • the digital camera of the present invention changes the original conventional one of the retroreflective lenses into a group of reflective lenses comprising a plurality of semi-transparent reflective lenses, and any one of the semi-transmissive reflective lenses can be selected by the operation control mechanism.
  • the number of semi-transparent reflective lenses carried by the reflective lens group is not limited, and one, two, three, four or more lenses may be used to form the reflective lens group.
  • the number of semi-transparent reflective lenses in the reflective lens group is not more than 20 for volume reasons. Among them, the reflection and transmission properties and the color filter performance of each semi-transparent reflective lens in the reflective lens group are different.
  • These semi-transparent reflective lenses can be independently opened and closed, and one of them can be selected by the control mechanism as needed during photographing.
  • the reflective lens set can be replaced as a whole, and the semi-transmissive reflective lens in the reflective lens set can also be replaced separately.
  • the semi-transparent reflective lens in the digital camera of the present invention may be a multi-layer composite structure, which is coated with a metal film or a film on the light-transmissive base lens, and the thickness of the film is controlled to select different materials.
  • Membrane changing the molecular structure of the basic mirror to obtain appropriate reflection and transmission properties; the reflective performance of semi-transparent reflective lenses can be designed from 1%, 2%, 3%, ..., 99%. Choose from the application. It is also possible to add a color filter function at the same time. To enhance its mechanical properties, the lens can be laminated with a layer of material with good mechanical properties.
  • the digital camera of the present invention has a special effect when the semi-transparent reflective lens adopts a lens for infrared color filter function.
  • the infrared night shot function of the digital camera can be turned on and off only by turning the lens through which the infrared light passes.
  • the lens that only passes visible light can be used under normal photographing conditions. Improve the quality of the photo.
  • the semi-transmissive lens of the present invention configured with these two lenses is suitable for all existing digital camera types.
  • the digital camera of the present invention wherein the reflective lens group has a total reflection reflective lens.
  • the digital camera selects this totally reflective mirror, its function is the same as that of the existing single-lens mirror digital camera.
  • the digital camera of the present invention wherein the reflective lenses of the group of reflective lenses are all mounted on a rotatable annular seat, which may be an integral ring or a partial ring. At this time, the position of the camera-enabled lens is unchanged. When the ring seat is rotated to this position, a corresponding one of the mirrors is selected to enter the working state.
  • This annular seat can be replaced as a whole with the reflective lens set above, or it can be replaced in a single piece, giving the camera more mirrors and filters to choose from.
  • the reflective lens set can be mounted on a slidable base, and the reflective lens is selected by sliding of the base. It can also be mounted on a scalloped base, relying on the sway of the scalloped base to select the reflective lens.
  • the digital camera of the present invention has a visor that is opened and closed synchronously with the reflective lens group at both ends of the optical viewfinder, and the visor is closed when the semi-transmissive reflective lens is opened or when the optical viewfinder is not used.
  • the optical viewfinder allows the digital camera to eliminate interference beams from the optical viewfinder, ensuring picture quality.
  • the translucent reflective lens is closed and optical viewing is used, the shutter opens to open the optical viewfinder beam path.
  • the visor position can be placed next to the eyepiece of the optical viewfinder or next to the optical image screen.
  • the opening and closing action of the visor using the opaque plate may be reciprocating or rotating; the opening and closing of the visor using the liquid crystal material is electronically controlled.
  • the number of the above-mentioned light shielding plates may be single.
  • the liquid crystal body of the liquid crystal panel may be monolithic or a combination of a plurality of liquid crystals, and a plurality of liquid crystals may be combined to form a labyrinth (louver type) to enhance the light blocking property.
  • the action control of the visor can be controlled in conjunction with the reflective lens of the camera, or it can be controlled by human body or sensitization - the visor remains open when the human body approaches the optical viewfinder or when the optical viewfinder eyepiece has no light. .
  • the reflective lens group includes only one semi-transmissive mirror
  • the reflective lens group includes two semi-transmissive mirrors
  • the reflective lens group includes three semi-transmissive mirrors.
  • the reflective lens group includes three semi-transparent reflections
  • the lens, the reflective lens group is mounted on the annular seat).
  • Figure 5 is a left side view of Figure 4.
  • FIG. 6 is a schematic structural view of Embodiment 5 of the present invention.
  • Figure 7 is a left side view of Figure 6.
  • Figure 8 is a schematic view showing the structure of a sixth embodiment of the present invention (an embodiment with a light shielding plate).
  • a digital camera includes: a lens 1-3, a reflective lens group, an image sensor 1-4, an optical viewfinder 1-6, an LCD display 1-5, and a reflective lens.
  • the group includes at least one semi-transparent reflective lens A. 1-2 is the real thing to take pictures.
  • the image is transmitted through the semi-transparent reflective lens A to the image sensor 1-4 into an electrical signal, and the electrical signal is transmitted to the LCD display 1-5 to instantly display the image.
  • a part of the light beam is reflected by the reflective lens to the optical viewfinder 1-6 to form an optical framing virtual image.
  • Image sensor 1-4 is a CCD sensor or a CMOS sensor. There is only one semi-transparent reflective lens A in the reflective lens group.
  • the reflective lens group includes two semi-transparent reflective lenses A.
  • the reflective lens group includes three semi-transparent reflective lenses A.
  • the reflective lens set also includes a fully reflective reflective lens. When the fully reflective reflective lens is selected, the digital camera is restored to the single-lens reflex digital camera currently in use.
  • the semi-transparent reflective lens A is coated with a metal film or coated with a film.
  • the retroreflective lens set also has a lens that transmits only infrared light.
  • the retroreflective lens set also has a lens that transmits only visible light.
  • the three semi-transparent reflective lenses in the reflective lens group are mounted on a rotatable annular seat D, and a ring-shaped bayonet mount is arranged near the lens mount of the camera.
  • the seat D is mounted on the annular seat bayonet.
  • the annular seat D is rotated to a certain position, and a corresponding semi-transparent reflective lens A1 is selected to enter the work, and the other two semi-transparent reflective lenses A2 and A3 are at rest.
  • part of the light beam passes through the semi-transmissive reflective lens A1 to reach the image sensor 1-4 to form a real image, and part of the light beam passes through the reflection of the semi-transmissive reflective lens A1 to reach the optical viewfinder 1-6.
  • Virtual image After the image of the object 1-2 passes through the lens 1-3, part of the light beam passes through the semi-transmissive reflective lens A1 to reach the image sensor 1-4 to form a real image, and part of the light beam passes through the reflection of the semi-transmissive reflective lens A1 to reach the optical viewfinder 1-6.
  • the reflective lens group comprises three reflective lenses, the first reflective lens is a totally reflective reflective lens, and the second is a semi-transmissive reflective lens that only allows infrared rays to pass through, the third A semi-transmissive reflective lens that only passes visible light is used.
  • the first reflective lens is the same as the prior art single-lens mirror digital camera.
  • the second reflective lens is the night camera, and the third reflective lens is the daily machine.
  • the infrared light blocking color filter (heat mirror) in the original lens can be removed, and the reflective lens group of the present invention is added, one of which is a color filter that only allows infrared light to pass through, and the other is A color filter that only passes visible light.
  • the number of lenses in the image beam path is the same as the original, and there is no new loss of the beam.
  • this kind of consumer digital camera can switch between night shot and day beat function by selecting the lens.
  • Reflective lens group The number of reflective lenses and the functional design can be flexible and varied, and the room for development can be large. This has greatly increased the usability and playability of digital cameras, not only as a work tool, but also as an entertainment tool.
  • each of the mirrors in the mirror group can be independently opened and closed under camera control. If there is only one semi-transparent reflective lens in the retroreflective lens set, the lens can also be designed in a stationary form.
  • the reflective lens group includes three uniformly distributed semi-transparent reflective lenses A, wherein one semi-transparent reflective lens A1 is in an active state, and the gap in the upper part of the ring is the reflected light of the image. path.
  • the reflective lenses of the reflective lens group in the above figures are arranged in parallel with the optical axis of the image in a stationary state, and may be arranged perpendicular to the optical axis as needed. The vertical arrangement is more suitable for consumer digital cameras.
  • the digital camera of the invention can make the LCD display of the existing single-lens mirror digital camera become a viewfinder, and can preview images and take photographs and record continuous images under the supervision of an LCD viewfinder, an optical viewfinder, and an EVF viewfinder; Adds a built-in infrared night shot function to all existing digital cameras. Since the reflective lens group can be designed to be replaceable, it is possible to design a variety of optical performance reflective lens sets as needed to fully utilize the camera's function and application value.
  • the optical viewfinder 1-6 has a shutter 1 that opens and closes in synchronization with the semi-transmissive mirror A.
  • the visor R is mounted next to the optical viewfinder eyepiece or mounted next to the optical viewfinder optical image screen.
  • the number of visors R is two, one visor is mounted next to the optical viewfinder eyepiece, and the other visor is mounted next to the optical viewfinder optical image screen.
  • the visor R is made of a liquid crystal panel, so that when the reflective lens is opened (photographing state), the liquid crystal is made opaque by using electronic control; when the reflective lens is closed (framing state), the liquid crystal visor is restored to a transparent state.
  • the visor closes the beam from the viewfinder when the reflective lens is open or when the optical viewfinder is not in use. When the viewfinder is used, the human body obscures the light beam from the eyepiece, and the shutter can remain open.
  • the visor is made of an opaque plate so that when the reflective lens is opened (photographed state), the visor is closed by electronic/mechanical control; when the reflective lens is closed (viewing state), the visor is returned to the open state.
  • the visor closes the beam from the viewfinder when the reflective lens is open or when the optical viewfinder is not in use.
  • the human body obscures the light beam from the eyepiece, and the shutter can remain open. .
  • liquid crystal visor is fast, no mechanical noise and vibration, but there is a slight light leakage, the mechanical shading effect is good, but there is noise and vibration during work.
  • the actual design can be selected as needed.
  • the visor made of an opaque plate is opened and closed in a rotational manner or reciprocally opened and closed.
  • the digital camera is provided with an infrared illuminator and an infrared illuminator, and the illuminating lamp and the flash can be integrated.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Studio Devices (AREA)
  • Viewfinders (AREA)

Abstract

L'invention concerne une caméra numérique comprenant un objectif (1-3), en ensemble miroir réfléchissant, un viseur optique (1-6), et écran d'affichage à cristaux liquides (LCD) (1-5). L'ensemble miroir réfléchissant comprend au moins un miroir semi-transmetteur. Ainsi, une partie du faisceau lumineux est transmis au détecteur d'image (1.4) en passant par le miroir semi-transmetteur, le signal optique étant converti en signal électrique par le détecteur d'image (1-4). Le signal électrique peut être affiché sur l'écran LCD (1-5) en temps réel, alors qu'une autre partie du faisceau lumineux est réfléchie vers le viseur optique (1-6) par le miroir semi-transmetteur.
PCT/CN2007/000993 2006-05-08 2007-03-27 Caméra numérique Ceased WO2007128189A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN200620113438 2006-05-08
CN200620113438.1 2006-05-08
CN200620137608.X 2006-10-09
CN200620137608 2006-10-09

Publications (1)

Publication Number Publication Date
WO2007128189A1 true WO2007128189A1 (fr) 2007-11-15

Family

ID=38667411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/000993 Ceased WO2007128189A1 (fr) 2006-05-08 2007-03-27 Caméra numérique

Country Status (1)

Country Link
WO (1) WO2007128189A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017049923A1 (fr) * 2015-06-17 2017-03-30 广州市巽腾信息科技有限公司 Appareil de traitement d'image mobile multifonction, procédé de traitement, et application

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866285A (en) * 1988-06-20 1989-09-12 Murasa International Infrared flash unit
US6292629B1 (en) * 1998-12-24 2001-09-18 Asahi Kogaku Kogyo Kabushiki Kaisha Indicator provided within finder for single lens reflex camera
KR20040070840A (ko) * 2003-02-04 2004-08-11 주식회사 비젼하이텍 주야간 자동초점조절 기능의 적외선 카메라 및 그에 따른주야간 자동초점조절방법
JP2005064693A (ja) * 2003-08-08 2005-03-10 Canon Inc 撮像装置
JP2006084545A (ja) * 2004-09-14 2006-03-30 Canon Inc カメラ及び撮影レンズ及びカメラシステム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866285A (en) * 1988-06-20 1989-09-12 Murasa International Infrared flash unit
US6292629B1 (en) * 1998-12-24 2001-09-18 Asahi Kogaku Kogyo Kabushiki Kaisha Indicator provided within finder for single lens reflex camera
KR20040070840A (ko) * 2003-02-04 2004-08-11 주식회사 비젼하이텍 주야간 자동초점조절 기능의 적외선 카메라 및 그에 따른주야간 자동초점조절방법
JP2005064693A (ja) * 2003-08-08 2005-03-10 Canon Inc 撮像装置
JP2006084545A (ja) * 2004-09-14 2006-03-30 Canon Inc カメラ及び撮影レンズ及びカメラシステム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017049923A1 (fr) * 2015-06-17 2017-03-30 广州市巽腾信息科技有限公司 Appareil de traitement d'image mobile multifonction, procédé de traitement, et application

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