CN111580323A - Adjustable paraxial viewfinder - Google Patents
Adjustable paraxial viewfinder Download PDFInfo
- Publication number
- CN111580323A CN111580323A CN202010501627.0A CN202010501627A CN111580323A CN 111580323 A CN111580323 A CN 111580323A CN 202010501627 A CN202010501627 A CN 202010501627A CN 111580323 A CN111580323 A CN 111580323A
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- gear
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- bracket
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- 230000005540 biological transmission Effects 0.000 claims description 10
- 210000003813 thumb Anatomy 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/02—Viewfinders
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- 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
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/02—Viewfinders
- G03B13/04—Viewfinders of direct vision type, e.g. frame, sighting mark
-
- 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
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/02—Viewfinders
- G03B13/06—Viewfinders with lenses with or without reflectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses an adjustable paraxial viewfinder device, which comprises an off-axis module, a viewing cabin and lenses, wherein the off-axis module comprises a surrounding frame, a front panel, a gear box, a shifting wheel, a bottom gear, a bottom driving wheel, a middle driving belt, a middle gear, an output gear, a top driving wheel, an edge driving belt, a middle driving wheel, a driving belt supporting block and a back plate. The invention can adjust the light inlet route according to the watching condition of the user by arranging the watching module so as to adapt to the watching habit of the user, and can adjust the distance between the watching module and the lens axis by arranging the off-axis module, so that the user can find a comfortable watching angle no matter the user holds the camera by the left hand or the right hand when using the device.
Description
Technical Field
The invention relates to the technical field of science and technology photography, in particular to an adjustable paraxial viewfinder.
Background
A paraxial camera, also called a paraxial view finding camera, is named "paraxial" because the view finding optical axis is located beside the photographic lens optical axis and parallel to each other. In the whole development process of the camera technology, the camera is the most various in category and greatly different in structure, so that the camera has the most culture characteristic, the traditional paraxial camera is very unfriendly to people who are used to take pictures with the left hand, and the viewing angle of the traditional paraxial camera is fixed and cannot be adjusted according to the preference of users.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an adjustable paraxial viewfinder, which solves the problems that the traditional paraxial camera is very unfriendly to people who are used to take pictures with left hands, and the viewing angle of the traditional paraxial camera is fixed and cannot be self-adjusted according to the preference of users.
In order to achieve the purpose, the invention provides the following technical scheme: an adjustable paraxial viewfinder comprises an off-axis module, a viewing bin and lenses, wherein the off-axis module comprises an enclosure frame, a front panel, a gear box, a shifting wheel, a bottom gear, a bottom driving wheel, an intermediate driving belt, an intermediate gear, an output gear, a top driving wheel, an edge driving belt, an intermediate driving wheel, a driving belt supporting block and a back plate, the front surface of the enclosure frame is fixedly connected with the front panel, the front surface of the front panel is provided with a chute, the viewing module is connected with the inside of the chute in a sliding way through the viewing bin, the two ends of the top of the back surface of the front panel are both rotatably connected with the top driving wheel, the bottom driving wheels are both arranged below the two top driving wheels, the two bottom driving wheels are both rotatably connected with the front panel, the top driving wheel and the bottom driving wheel are rotatably connected, the two middle driving wheels are rotatably connected with the front panel and are rotatably connected through a middle driving belt, the side face of the top driving wheel is fixedly connected with an output gear through a connecting shaft, the side face of the middle driving wheel is fixedly connected with a bottom gear through a connecting shaft, the output gear is connected with the bottom gear through a middle gear wheel, the side face of the output gear is fixedly connected with a shifting wheel, a gear box is arranged on the outer side of the shifting wheel, the back face of the enclosure frame is fixedly connected with a back plate, the back plate is fixedly connected with the gear box, a driving belt supporting block is slidably connected between the upper surface and the lower surface of the middle driving belt, and the driving belt supporting block is fixedly connected.
The viewing module comprises a lens cone, a front side rack slide rail, a slide rail connecting frame, a rear side rack slide rail, a rear side motor sleeve support, a rear side motor sleeve, a rear side motor, a front side lens support, a rear side gear support, a rear side lens support, a rear side gear, a rear side rack, a rear side connecting post, a front side rack, a front side gear support, a front side gear, a front side motor sleeve, a front side motor sleeve support and a front side connecting post, wherein the front side of the viewing cabin is fixedly connected with the lens cone, the front side of the lens cone is fixedly connected with a lens, the upper surface of the lens cone is provided with a chute, the inner wall of the chute is respectively and backwards slidably connected with the front side connecting post and the rear side connecting post, the inside of the lens cone is respectively and backwards slidably connected with the front side lens support and the rear side lens support, the front side lens support and the rear side lens support are respectively and fixedly connected with the front side connecting post and the rear side connecting post, the outer surfaces of the front connecting column and the slide rail connecting frame are respectively fixedly connected with a front side rack and a rear side rack, a front side gear and a rear side gear are respectively in gear connection between opposite surfaces of the front side rack and the rear side rack, the upper surfaces of the front side gear, the rear side gear and the lens cone are respectively in rotary connection through a front side gear bracket and a rear side gear bracket, the upper surfaces of the front side rack and the rear side rack are respectively in sliding connection with a front side rack slide rail and a rear side rack slide rail, the front side rack slide rail and the rear side rack slide rail are respectively in fixed connection with the lens cone through a slide rail connecting frame, a front side motor and a rear side motor are respectively arranged above the front side gear and the rear side gear, output shafts of the front side motor and the rear side motor are respectively in fixed connection with the front side gear and the rear side gear, a front side motor sleeve and a rear side motor sleeve are respectively sleeved on the outer surfaces of the front side motor and the rear side motor, the front side motor sleeve and the rear side motor sleeve are respectively and fixedly connected with the front side rack sliding rail and the rear side rack sliding rail through a front side motor sleeve support and a rear side motor sleeve support.
Preferably, the upper surface of the viewing bin is fixedly connected with an edge transmission belt, and the lower surface of the viewing bin is fixedly connected with a middle transmission belt.
Preferably, a groove is formed in the position where the thumb wheel interferes with the gear box.
Preferably, the output gear, the middle gear and the bottom gear are all rotatably connected with the back plate.
Preferably, the inner ring of the front lens support is fixedly connected with a lens, and the inner ring of the rear lens support is fixedly connected with a lens.
Preferably, the back plate is provided with a sliding groove at a position corresponding to the front plate.
Preferably, the number of the bottom driving wheels is six, and every three of the six bottom driving wheels are a group of inner rings which are respectively attached to the bottom of the edge driving belt.
Preferably, the moving speed of the upper surface of the intermediate belt is the same as the moving speed of the upper surface of the edge belt.
Has the beneficial effects.
Compared with the prior art, the invention provides an adjustable paraxial viewfinder device, which has the following beneficial effects: the invention can adjust the light inlet route according to the watching condition of the user by arranging the watching module so as to adapt to the watching habit of the user, and can adjust the distance between the watching module and the lens axis by arranging the off-axis module, so that the user can find a comfortable watching angle no matter the user holds the camera by the left hand or the right hand when using the device.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic view of an off-axis module according to the present invention.
FIG. 3 is a schematic view of the present invention.
Fig. 4 is a schematic view of a viewing module according to the present invention.
In the figure: 1-an off-axis module; 101-surrounding frame; 102-a front panel; 103-a gearbox; 104-thumb wheel; 105-a bottom gear; 106-bottom driving wheel; 107-intermediate drive belt; 108-intermediate gear; 109-output gear; 110-a top drive wheel; 111-edge drive belt; 112-an intermediate transmission wheel; 113-a belt support block; 114-a back plate; 2-a viewing module; 201-lens barrel; 202-front side rack slide; 203-slide rail connecting frame; 204-rear rack slide rail; 205-rear motor cover bracket; 206-rear motor cover; 207-rear motor; 208-a front lens holder; 209-rear side gear support; 210-a rear lens holder; 211-rear side gear; 212-rear rack; 213-a rear side connection column; 214-front side rack; 215-front side gear support; 216-front side gear; 217-front motor cover; 218-a front side motor; 219-front motor cover bracket; 220-front side connection post; 3-a viewing bin; 4-a lens.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 2, fig. 3, and fig. 4, the present invention provides a technical solution: an adjustable paraxial viewfinder comprises an off-axis module 1, a viewing module 2, a viewing chamber 3 and a lens 4, wherein as shown in figure 2, the off-axis module 1 is a composition of the off-axis module of the invention, wherein the off-axis module 1 comprises a surrounding frame 101, a front panel 102, a gear box 103, a dial wheel 104, a bottom gear 105, a bottom driving wheel 106, an intermediate driving belt 107, an intermediate gear 108, an output gear 109, a top driving wheel 110, an edge driving belt 111, an intermediate driving wheel 112, a driving belt supporting block 113 and a back plate 114, the front surface of the surrounding frame 101 is fixedly connected with the front panel 102, the front surface of the front panel 102 is provided with a chute, the viewing module 2 is connected in the chute in a sliding manner through the viewing chamber 3, both ends of the top of the back surface of the front panel 102 are rotatably connected with the top driving wheel 110, the bottom driving wheels 106 are arranged below the two top driving wheels 110, the two bottom driving wheels 106 are, both sides below the viewing bin 3 are provided with middle driving wheels 112, the two middle driving wheels 112 are rotatably connected with the front panel 102, the two middle driving wheels 112 are rotatably connected through a middle driving belt 107, the side surface of the top driving wheel 110 is fixedly connected with an output gear 109 through a connecting shaft, the side surface of the middle driving wheel 112 is fixedly connected with a bottom gear 105 through a connecting shaft, the output gear 109 and the bottom gear 105 are in gear connection through a middle gear 108, the side surface of the output gear 109 is fixedly connected with a shifting wheel 104, the outer side of the shifting wheel 104 is provided with a gear box 103, the back surface of the enclosure frame 101 is fixedly connected with a back panel 114, the back panel 114 is fixedly connected with the gear box 103, a driving belt supporting block 113 is slidably connected between the upper surface and the lower surface of the.
Fig. 4 is a view of the structure of the viewing module of the present invention, wherein the viewing module 2 includes a lens barrel 201, a front rack 202, a rack connecting frame 203, a rear rack 204, a rear motor cover bracket 205, a rear motor cover 206, a rear motor 207, a front lens bracket 208, a rear gear bracket 209, a rear lens bracket 210, a rear gear 211, a rear rack 212, a rear connecting post 213, a front rack 214, a front gear bracket 215, a front gear 216, a front motor cover 217, a front motor 218, a front motor cover bracket 219 and a front connecting post 220, the front of the viewing chamber 3 is fixedly connected with the lens barrel 201, the front of the lens barrel 201 is fixedly connected with a lens 4, the upper surface of the lens barrel 201 is provided with a sliding groove, the inner wall of the sliding groove is respectively connected with the front connecting post 220 and the rear connecting post 213 from front to rear, the interior of the lens barrel 201 is respectively connected with the front lens bracket 208 and the rear lens bracket 210 from front to rear, the front lens bracket 208 and the rear lens bracket 210 are respectively fixedly connected with a front connecting post 220 and a rear connecting post 213, the outer surfaces of the front connecting post 220 and the slide connecting post 203 are respectively fixedly connected with a front gear rack 214 and a rear gear rack 212, the back surfaces of the front gear rack 214 and the rear gear rack 212 are respectively in gear connection with a front gear 216 and a rear gear rack 211, the upper surfaces of the front gear rack 216 and the rear gear rack 211 and the lens barrel 201 are respectively in rotary connection with the front gear rack 215 and the rear gear rack 209, the upper surfaces of the front gear rack 214 and the rear gear rack 212 are respectively in sliding connection with a front gear rack 202 and a rear gear rack 204, the front gear rack 202 and the rear gear rack 204 are respectively in fixed connection with the lens barrel 201 through the slide connecting post 203, a front motor 218 and a rear motor 207 are respectively arranged above the front gear rack 216 and the rear gear rack 211, and output shafts of the front motor 218 and the rear motor 207 are respectively in fixed connection with the front gear rack 216 and the rear gear rack 211, the outer surfaces of the front motor 218 and the rear motor 207 are respectively sleeved with a front motor sleeve 217 and a rear motor sleeve 206, and the front motor sleeve 217 and the rear motor sleeve 206 are respectively fixedly connected with the front rack slide rail 202 and the rear rack slide rail 204 through a front motor sleeve bracket 219 and a rear motor sleeve bracket 205.
When the device is used, a user firstly installs the device on a photographic apparatus, when the user takes a picture, the user needs to watch the watching chamber 3 with eyes, the user can start the front side motor 218 and the rear side motor 207 according to the specific watching condition, the front side motor 218 and the rear side motor 207 can drive the rear side rack 212 and the front side rack 214 to move through the rear side gear 211 and the front side gear 216, the rear side rack 212 and the front side rack 214 move to drive the front side lens bracket 208 and the rear side lens bracket 210 to move in the lens barrel 201, at this time, the lenses 4 in the front side lens bracket 208 and the rear side lens bracket 210 can move, so as to change the path of light rays emitted into eyes, when the user needs to change the view direction, the user can manually rotate the dial wheel 104 according to the condition, the dial wheel 104 can drive the output gear 109 to rotate, the output gear 109 can drive the bottom gear 105 to rotate through the intermediate gear 108, the output gear 109 and the bottom gear 105 are then rotated simultaneously, so that the top drive wheel 110 and the intermediate drive wheel 112 are rotated simultaneously, the edge belt 111 and the intermediate belt 107 are rotated by the output gear 109 and the bottom gear 105, and the viewing magazine 3 is moved between the edge belt 111 and the intermediate belt 107, so that the viewing module 2 is moved in a horizontal direction, thereby changing the distance of the axis between the viewing module 2 and the camera lens.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An adjustable paraxial viewfinder comprises an off-axis module (1), a viewing module (2), a viewing bin (3) and lenses (4), wherein the off-axis module (1) comprises an enclosure frame (101), a front panel (102), a gear box (103), a shifting wheel (104), a bottom gear (105), a bottom driving wheel (106), an intermediate driving belt (107), an intermediate gear (108), an output gear (109), a top driving wheel (110), an edge driving belt (111), an intermediate driving wheel (112), a driving belt supporting block (113) and a back plate (114), the front surface of the enclosure frame (101) is fixedly connected with the front panel (102), the front surface of the front panel (102) is provided with a sliding groove, the viewing module (2) is connected in the sliding groove in a sliding manner through the viewing bin (3), and two ends of the top of the back surface of the front panel (102) are both rotatably connected with the, bottom driving wheels (106) are arranged below the two top driving wheels (110), the two bottom driving wheels (106) are rotatably connected with the front panel (102), the top driving wheels (110) and the bottom driving wheels (106) are rotatably connected through edge driving belts (111), middle driving wheels (112) are arranged on two sides below the watching bin (3), the two middle driving wheels (112) are rotatably connected with the front panel (102), the two middle driving wheels (112) are rotatably connected through middle driving belts (107), an output gear (109) is fixedly connected to the side surface of the top driving wheel (110) through a connecting shaft, a bottom gear (105) is fixedly connected to the side surface of the middle driving wheel (112) through a connecting shaft, the output gear (109) is connected with the bottom gear (105) through a middle gear (108), and a shifting wheel (104) is fixedly connected to the side surface of the output gear (109), a gear box (103) is arranged on the outer side of the thumb wheel (104), a back plate (114) is fixedly connected to the back surface of the enclosure frame (101), the back plate (114) is fixedly connected with the gear box (103), a transmission belt supporting block (113) is connected between the upper surface and the lower surface of the intermediate transmission belt (107) in a sliding mode, and the transmission belt supporting block (113) is fixedly connected with the enclosure frame (101) and the back plate (114);
the viewing module (2) comprises a lens barrel (201), a front rack sliding rail (202), a sliding rail connecting frame (203), a rear rack sliding rail (204), a rear motor sleeve bracket (205), a rear motor sleeve (206), a rear motor (207), a front lens bracket (208), a rear gear bracket (209), a rear lens bracket (210), a rear gear (211), a rear rack (212), a rear connecting post (213), a front rack (214), a front gear bracket (215), a front gear (216), a front motor sleeve (217), a front motor (218), a front motor sleeve bracket (219) and a front connecting post (220), the front surface of the viewing bin (3) is fixedly connected with the lens barrel (201), the front surface of the lens barrel (201) is fixedly connected with a lens (4), the upper surface of the lens barrel (201) is provided with a sliding groove, the inner wall of the sliding groove is respectively connected with the front connecting post (220) and the rear connecting post (213) from front to rear in a sliding manner, the inner part of the lens barrel (201) is respectively connected with a front lens bracket (208) and a rear lens bracket (210) in a sliding manner from front to back 2, the front lens bracket (208) and the rear lens bracket (210) are respectively fixedly connected with a front connecting column (220) and a rear connecting column (213), the outer surfaces of the front connecting column (220) and the sliding rail connecting frame (203) are respectively fixedly connected with a front rack (214) and a rear rack (212), the back surfaces of the front rack (214) and the rear rack (212) are respectively connected with a front gear (216) and a rear gear (211) through gears, the front gear (216) and the rear gear (211) are respectively connected with the upper surface of the lens barrel (201) through a front gear bracket (215) and a rear gear bracket (209) in a rotating manner, and the upper surfaces of the front rack (214) and the rear rack (212) are respectively connected with a front rack (202) and a rear rack (204) in a sliding manner, the front side gear rack sliding rail (202) and the rear side gear rack sliding rail (204) are fixedly connected with the lens barrel (201) through a sliding rail connecting frame (203), a front side motor (218) and a rear side motor (207) are respectively arranged above the front side gear (216) and the rear side gear (211), output shafts of the front side motor (218) and the rear side motor (207) are respectively fixedly connected with the front side gear (216) and the rear side gear (211), the outer surfaces of the front side motor (218) and the rear side motor (207) are respectively sleeved with a front side motor sleeve (217) and a rear side motor sleeve (206), and the front side motor sleeve (217) and the rear side motor sleeve (206) are respectively fixedly connected with the front side gear rack sliding rail (202) and the rear side gear rack sliding rail (204) through a front side motor sleeve bracket (219) and a rear side motor sleeve bracket (205).
2. An adjustable paraxial viewing device according to claim 1 wherein: the upper surface of the watching bin (3) is fixedly connected with an edge transmission belt (11), and the lower surface of the watching bin (3) is fixedly connected with a middle transmission belt (107).
3. An adjustable paraxial viewing device according to claim 1 wherein: a groove is formed in the position where the thumb wheel (104) interferes with the gear box (103).
4. An adjustable paraxial viewing device according to claim 1 wherein: the output gear (109), the middle gear (108) and the bottom gear (105) are all rotationally connected with the back plate (114).
5. An adjustable paraxial viewing device according to claim 1 wherein: the inner ring of the front side lens support (208) is fixedly connected with a lens (4), and the inner ring of the rear side lens support (210) is fixedly connected with the lens (4).
6. An adjustable paraxial viewing device according to claim 1 wherein: the back plate (114) is provided with a sliding groove at the position corresponding to the front panel (102).
7. An adjustable paraxial viewing device according to claim 1 wherein: six bottom driving wheels (106) are arranged, and every three of the six bottom driving wheels (106) are a group of inner rings which are respectively attached to the bottom of the edge driving belt (111).
8. An adjustable paraxial viewing device according to claim 1 wherein: the moving speed of the upper surface of the intermediate transmission belt (107) is the same as that of the upper surface of the edge transmission belt (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010501627.0A CN111580323B (en) | 2020-06-04 | 2020-06-04 | Adjustable paraxial viewfinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010501627.0A CN111580323B (en) | 2020-06-04 | 2020-06-04 | Adjustable paraxial viewfinder |
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| Publication Number | Publication Date |
|---|---|
| CN111580323A true CN111580323A (en) | 2020-08-25 |
| CN111580323B CN111580323B (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010501627.0A Active CN111580323B (en) | 2020-06-04 | 2020-06-04 | Adjustable paraxial viewfinder |
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| CN (1) | CN111580323B (en) |
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| US4107714A (en) * | 1975-03-21 | 1978-08-15 | Jos. Schneider & Co. Optische Werke | Adjusting mechanism for movable picture-taking objective |
| US4697901A (en) * | 1985-01-30 | 1987-10-06 | Nippon Kogaku K. K. | Parallax correcting device in the finder of a camera |
| US5146254A (en) * | 1989-04-19 | 1992-09-08 | Ricoh Company, Ltd. | Apparatus for driving varifocal lens |
| US5532777A (en) * | 1995-06-06 | 1996-07-02 | Zanen; Pieter O. | Single lens apparatus for three-dimensional imaging having focus-related convergence compensation |
| CN1419162A (en) * | 2001-11-13 | 2003-05-21 | 奥林巴斯光学工业株式会社 | Camera and optial viewfinder |
| US6600877B2 (en) * | 2001-09-28 | 2003-07-29 | Fuji Photo Optical Co., Ltd. | Zoom interlocking mechanism for camera |
| CN1527084A (en) * | 2003-03-03 | 2004-09-08 | 奥林巴斯株式会社 | Varifocal mirrorscope |
| JP2004287023A (en) * | 2003-03-20 | 2004-10-14 | Pentax Corp | Zoom lens camera and rotation transmission mechanism |
| CN101430414A (en) * | 2007-11-09 | 2009-05-13 | Hoya株式会社 | Mechanism for controlling position of optical element |
| EP2560046A2 (en) * | 2011-08-17 | 2013-02-20 | Samsung Electronics Co., Ltd. | Focus regulating apparatus of projector and projector using the same |
| US20140293462A1 (en) * | 2013-03-29 | 2014-10-02 | Canon Kabushiki Kaisha | Rack and optical apparatus using the same |
| CN204581891U (en) * | 2015-04-22 | 2015-08-26 | 贵州国华眼视光科技有限公司 | A kind of adjustable buphthalmos for myopia, amblyopia rehabilitation training instrument |
| CN206074917U (en) * | 2016-09-26 | 2017-04-05 | 深圳市大疆创新科技有限公司 | Governor motion and the viewing device with the governor motion |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4107714A (en) * | 1975-03-21 | 1978-08-15 | Jos. Schneider & Co. Optische Werke | Adjusting mechanism for movable picture-taking objective |
| US4697901A (en) * | 1985-01-30 | 1987-10-06 | Nippon Kogaku K. K. | Parallax correcting device in the finder of a camera |
| US5146254A (en) * | 1989-04-19 | 1992-09-08 | Ricoh Company, Ltd. | Apparatus for driving varifocal lens |
| US5532777A (en) * | 1995-06-06 | 1996-07-02 | Zanen; Pieter O. | Single lens apparatus for three-dimensional imaging having focus-related convergence compensation |
| US6600877B2 (en) * | 2001-09-28 | 2003-07-29 | Fuji Photo Optical Co., Ltd. | Zoom interlocking mechanism for camera |
| CN1419162A (en) * | 2001-11-13 | 2003-05-21 | 奥林巴斯光学工业株式会社 | Camera and optial viewfinder |
| CN1527084A (en) * | 2003-03-03 | 2004-09-08 | 奥林巴斯株式会社 | Varifocal mirrorscope |
| JP2004287023A (en) * | 2003-03-20 | 2004-10-14 | Pentax Corp | Zoom lens camera and rotation transmission mechanism |
| CN101430414A (en) * | 2007-11-09 | 2009-05-13 | Hoya株式会社 | Mechanism for controlling position of optical element |
| EP2560046A2 (en) * | 2011-08-17 | 2013-02-20 | Samsung Electronics Co., Ltd. | Focus regulating apparatus of projector and projector using the same |
| US20140293462A1 (en) * | 2013-03-29 | 2014-10-02 | Canon Kabushiki Kaisha | Rack and optical apparatus using the same |
| CN204581891U (en) * | 2015-04-22 | 2015-08-26 | 贵州国华眼视光科技有限公司 | A kind of adjustable buphthalmos for myopia, amblyopia rehabilitation training instrument |
| CN206074917U (en) * | 2016-09-26 | 2017-04-05 | 深圳市大疆创新科技有限公司 | Governor motion and the viewing device with the governor motion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111580323B (en) | 2021-07-20 |
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