CN203311078U - Focusing device and projecting system - Google Patents
Focusing device and projecting system Download PDFInfo
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- CN203311078U CN203311078U CN2013203785828U CN201320378582U CN203311078U CN 203311078 U CN203311078 U CN 203311078U CN 2013203785828 U CN2013203785828 U CN 2013203785828U CN 201320378582 U CN201320378582 U CN 201320378582U CN 203311078 U CN203311078 U CN 203311078U
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- focus control
- stationary magazine
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Abstract
The utility model relates to a focusing device and a projecting system. The focusing device comprises a lens module and a focusing structure. The lens module comprises a lens fixation barrel and a lens group which is moveably arranged inside the lens fixation barrel. The lens group is driven by the focusing structure to move translationally in a certain effective focusing range. The focusing device is characterized in that: the focusing device further comprises a limitation structure; and through adjusting the limitation structure, one end position of the effective focusing range of the lens group is allowed to be determined. According to the focusing device, an initial point is determined through the limitation structure, so that invalid adjustment amount at one end of a focusing wheel is reduced to zero when the product leaves the factory, the movement of the focusing wheel is allowed to form the effective focusing range the moment the focusing wheel begins to move, and the function of synchronous focusing or automatic focusing of multiple products can be achieved.
Description
Technical field
The utility model relates to a kind of focus control and uses the optical projection system of this focus control.
Background technology
Due to projection lens be one to the very sensitive assembly of tolerance, when producing in enormous quantities, machine error and rigging error all can be greater than optical parallax, in order to eliminate the impact of these errors, usually by burnt method after adjusting, do compensation, make camera lens reach designing requirement, so, the setting range of focusing wheel can be more much larger than optical focusing amount, it is invalid that the setting range that is to say focuses takes turns has major part, and in actual use, under identical projector distance, the amount of exercise of the focusing wheel of every projector is all different, be difficult to realize many synchronous-focusings or automatic focusing function.
The utility model content
The technical problems to be solved in the utility model is, the above-mentioned defect for prior art, provide a kind of focus control and optical projection system.
The technical scheme that its technical matters that solves the utility model adopts is: construct a kind of focus control, comprise camera lens module and focusing structure, described camera lens module comprises the camera lens stationary magazine creel and is arranged on movably the lens set in described camera lens stationary magazine creel, described lens set drives translation motion in certain effective focusing range by described focusing structure, this focus control also comprises position limiting structure, regulates described position limiting structure and makes an end position of described effective focusing range of described lens set be determined.
Focus control described in the utility model, wherein, described focusing structure comprises focusing motor and the conversion of motion device that rotatablely moving of described focusing motor shaft end is converted into to the translation motion of described lens set in described camera lens stationary magazine creel;
On described camera lens stationary magazine creel lateral wall, offer stopper slot, described lens set is provided with position-limitting pin, and described position-limitting pin passes described stopper slot, makes described lens set move in described camera lens stationary magazine creel along the track of described stopper slot; Described conversion of motion device is connected with described position-limitting pin.
Focus control described in the utility model, wherein, described conversion of motion device comprises the focusing wheel that is driven rotation by described focusing motor, on described focusing wheel, offer the camber line mounting hole, described position-limitting pin passes described camber line mounting hole, described focusing motor drives described focusing wheel and rotates, and described position-limitting pin moves along the track of described camber line mounting hole, moves in described camera lens stationary magazine creel thereby promote described lens set;
The end of described position limiting structure passes the position-limitting pin butt in described focusing wheel and described camber line mounting hole.
Focus control described in the utility model, wherein, described position limiting structure comprises the straight-line groove be arranged on described camera lens stationary magazine creel and the spacer pin that can move back and forth in described straight-line groove, described spacer pin contacts with the lateral edges of described focusing wheel.
Focus control described in the utility model, wherein, described conversion of motion device comprises belt gear or the worm-and-wheel gear driven by described focusing motor, the topworks of described belt gear or worm and gear end is provided with the focusing wheel, on described focusing wheel, offer the camber line mounting hole, described position-limitting pin passes described camber line mounting hole, described focusing motor drives described focusing wheel and rotates, described position-limitting pin moves along the track of described camber line mounting hole, moves in described camera lens stationary magazine creel thereby promote described lens set;
The end of described position limiting structure passes the position-limitting pin butt in described focusing wheel and described camber line mounting hole.
Focus control described in the utility model, wherein, described position limiting structure is arranged on the top of described focusing wheel, comprises the stop screw that is screwed onto described focusing wheel top or the wedge that is plugged in described focusing wheel top.
Focus control described in the utility model, wherein, described conversion of motion device comprises the gear that is fixed on described focusing motor shaft end and the tooth bar be connected with described camera lens stationary magazine creel, described position limiting structure comprises the threaded block that is arranged on described tooth bar end one side and the set screw be spirally connected with described threaded block, and the end of described set screw points to the end of described tooth bar.
Focus control described in the utility model, wherein, described conversion of motion device comprises fixed sturcture, is arranged in described fixed sturcture and the focusing screw be connected with described focusing motor shaft end and the focusing nut be spirally connected with described focusing screw, and described position-limitting pin is connected with described focusing nut; Described position limiting structure comprises the stop screw be arranged on described fixed sturcture, and described focusing nut is pointed in the end of described stop screw, and its axis is parallel with the axis of described focusing screw.
Another technical scheme that its technical matters that solves the utility model adopts is: construct a kind of optical projection system, comprise at least one projector equipment, described projector equipment comprises focus control as described above.
Optical projection system described in the utility model, wherein, this optical projection system also comprises distance-sensor and/or be used to controlling the control desk of described projector equipment.
Optical projection system described in the utility model, wherein, described control desk comprises the DMX512 control desk.Implement of the present utility model, have following beneficial effect: the utility model is by setting initial point with position limiting structure, make the product invalid adjustment amount of on wheel of focusing when dispatching from the factory be reduced to zero, allow the motion at the beginning of focusing wheel just belong to effective setting range, thereby can realize many synchronous-focusings or automatic focusing function.
The accompanying drawing explanation
The utility model is described in further detail below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the front view of a kind of focus control the first embodiment of the utility model;
Fig. 2 is the side view of a kind of focus control the first embodiment of the utility model;
Fig. 3 is the structural representation of a kind of focus control the second embodiment of the utility model;
Fig. 4 is the structural representation of a kind of focus control of the utility model the 3rd embodiment;
Fig. 5 is the structural representation of a kind of focus control of the utility model the 4th embodiment;
Fig. 6 is the structural representation of a kind of focus control of the utility model the 5th embodiment;
Fig. 7 is the front view of a kind of focus control of the utility model the 6th embodiment;
Fig. 8 is the side view of a kind of focus control of the utility model the 6th embodiment;
Fig. 9 is the structural representation of a kind of focus control of the utility model the 7th embodiment.
Embodiment
As depicted in figs. 1 and 2, in the first embodiment of the present utility model, this focus control comprises camera lens module and focusing structure, the camera lens module further comprises camera lens stationary magazine creel 100, and be arranged on movably the lens set 101 in camera lens stationary magazine creel 100, lens set 101 focal length in the interior movement of camera lens stationary magazine creel 100 also and then changes, lens set 101 drives translation motion in certain effective focusing range by focusing structure, in addition, this focus control also comprises position limiting structure 300, regulating this position limiting structure 300 makes an end position of effective focusing range of lens set 101 be determined.That is to say, by regulating this position limiting structure 300, the initial position of lens set 101 in camera lens stationary magazine creel 100 is determined, thereby determined the focal position that it is initial.
Further, focusing structure comprises that focusing motor 200 and the rotatablely moving of motor 200 axle heads of focusing are converted into the conversion of motion device of the translation motion of lens set 101 in camera lens stationary magazine creel 100; Simultaneously, on the lateral wall of camera lens stationary magazine creel 100, also offer stopper slot 102, lens set 101 is provided with position-limitting pin 103, and position-limitting pin 103 passes stopper slot 102, make lens set 101 along the track of stopper slot 102 in the interior movement of camera lens stationary magazine creel 100.
In the first embodiment of the present utility model, above-mentioned conversion of motion device comprises the focusing wheel 201 that is driven rotation by focusing motor 200, offers camber line mounting hole 202 on focusing wheel 201, and position-limitting pin 103 passes camber line mounting hole 202.When focusing motor 200 drove 201 rotation of focusing wheel, position-limitting pin 103 moved along the track of camber line mounting hole 202, thereby promoted lens set 101 in the interior movement of camera lens stationary magazine creel 100.
In this embodiment, position limiting structure 300 passes the stop screw of position-limitting pin 103 butts in focusing wheel 201 and camber line mounting hole 202 for end, this stop screw is positioned at the top of focusing wheel 201, understandable, and the focusing screw also can be arranged on the bottom of focusing wheel 201.Twist stop screw downwards, its end can be deep in camber line mounting hole 202, thereby position-limitting pin 103 is pressed down, the process that position-limitting pin 103 presses down can force connected lens group 101 in camera lens stationary magazine creel 100, move along stopper slot 102, has changed its initial focal position thereby the process of regulating stop screw has just changed the initial position of lens group 101.The process that stop screw is back-outed is just in time opposite with the process be screwed into, and therefore repeats no more.
As shown in Figure 3, in the second embodiment of the present utility model, each ingredient of focus control is all identical with the first embodiment with function, different is that in the present embodiment, change has occurred position limiting structure 300, in a upper embodiment, position limiting structure 300 is stop screw, and in the present embodiment, position limiting structure 300 is wedge.Its principle is identical with the first embodiment, therefore no longer narration.
As shown in Figure 4, in the 3rd embodiment of the present utility model, each ingredient of focus control is identical with a upper embodiment with function, different is, in this embodiment, position limiting structure 300 comprises the straight-line groove 301 be arranged on camera lens stationary magazine creel 100 and the spacer pin 302 that can move back and forth in straight-line groove 301, and spacer pin 302 contacts with the lateral edges of focusing wheel 201.Straight-line groove 301 has limited the moving range of spacer pin 302, spacer pin 302 has limited the slewing area of focusing wheel 201, by regulating the position of spacer pin 302, position-limitting pin 103 can be limited on a certain position in camber line mounting hole 202, the initial focus position is determined thus.
As shown in Figure 5, in the 4th embodiment of the present utility model, focus control still comprises camera lens module and focusing structure, the camera lens module comprises camera lens stationary magazine creel 100 and the mobile lens set 101 be arranged in camera lens stationary magazine creel 100, on the lateral wall of camera lens stationary magazine creel 100, offer stopper slot 102, be provided with position-limitting pin in stopper slot 102.Focusing structure comprises focusing motor (not shown) and conversion of motion device, this conversion of motion device comprises the gear 203 that is fixed on the focusing motor shaft end and the tooth bar 204 be connected with camera lens stationary magazine creel 100,300 of position limiting structures comprise the threaded block (not illustrating with label in figure) that is arranged on tooth bar 204 end one sides and the set screw be spirally connected with threaded block, and the end of this set screw points to the end of tooth bar 204.By regulating set screw, can change the end position of tooth bar 204 range of movement, thereby change the initial position of position-limitting pin 103 in stopper slot 102.
As shown in Figure 6, in the 5th embodiment of the present utility model, each ingredient of focus control and function and a upper embodiment are similar, and different is that change has occurred the conversion of motion apparatus structure in focusing structure.In this embodiment, the conversion of motion device comprises fixed sturcture 303, is arranged in fixed sturcture 303 and the focusing screw 304 be connected with focusing motor 200 axle heads and the focusing nut 305 be spirally connected with focusing screw 304, and wherein position-limitting pin 103 is connected with focusing nut 305.
300 of position limiting structures comprise the stop screw be arranged on fixed sturcture 303, and focusing nut 305 is pointed in the end of this stop screw, and its axis is parallel with the axis of focusing screw 304.Regulate stop screw 300, just can change the end position of focusing nut 305 range of movement on focusing screw 304, thereby change the initial position of position-limitting pin 103 in stopper slot 102.
As shown in Figure 7 and Figure 8, in the 6th embodiment of the present utility model, each ingredient of focus control is all identical with a upper embodiment with function, different is, conversion of motion device in focusing structure comprises the belt gear 400 driven by focusing motor 200, the topworks of belt gear 400 is provided with focusing wheel 306, on this focusing wheel 306, offer camber line mounting hole 307, position-limitting pin 103 passes camber line mounting hole 307, focusing motor 200 drives focusing wheel 306 and rotates, 103 tracks along camber line mounting hole 307 of position-limitting pin move, thereby promote lens set 101 in the interior movement of camera lens stationary magazine creel 100.
Identical with the second embodiment with the first embodiment is that position limiting structure 300 can be arranged on the stop screw at focusing wheel 306 tops or be plugged in the wedge at focusing wheel 306 tops.It should be noted that stop screw or wedge also can be arranged on the bottom of focusing wheel 306.
As shown in Figure 9, in the 7th embodiment of the present utility model, each ingredient of focus control is all identical with a upper embodiment with function, different is, conversion of motion device in focusing structure comprises the worm-and-wheel gear 500 driven by focusing motor 200, the topworks of worm-and-wheel gear 500 is provided with focusing wheel 306, on this focusing wheel 306, offer the camber line mounting hole, position-limitting pin 103 passes the camber line mounting hole, focusing motor 200 drives focusing wheel 306 and rotates, 103 tracks along the camber line mounting hole of position-limitting pin move, thereby promote lens set 101 in the interior movement of camera lens stationary magazine creel 100.
Identical with the second embodiment with the first embodiment is that position limiting structure 300 can be arranged on the stop screw at focusing wheel 306 tops or be plugged in the wedge at focusing wheel 306 tops.It should be noted that stop screw or wedge also can be arranged on the bottom of focusing wheel 306.
In the specific embodiment of a kind of optical projection system of the utility model, this optical projection system comprises at least one projector equipment, and wherein projector equipment comprises focus control as described above.Owing to having adopted above-mentioned focus control, the initial focus position of many projector equipments can be adjusted to unanimously when dispatching from the factory, reduced the control difficulty.
In addition, this optical projection system can also comprise distance-sensor and/or be used to controlling the control desk of many projector equipments.When consing, many projector equipments can be take this initial position simultaneously and done and be synchronized with the movement as initial point, have guaranteed many consistance that projector equipment focuses on.And control desk can adopt the DMX512 control desk.Separately, because can there be cumulative errors in many projector equipments after prolonged exercise, now can control many projector equipments by control desk and get back to the initial position determined by focus control, eliminate cumulative errors, i.e. cumulative errors zero clearing.
Above embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present utility model and implement accordingly, can not limit protection domain of the present utility model.All equalizations of doing with the utility model claim scope change and modify, and all should belong to the covering scope of the utility model claim.
Claims (11)
1. focus control, comprise camera lens module and focusing structure, described camera lens module comprises camera lens stationary magazine creel (100) and is arranged on movably the lens set (101) in described camera lens stationary magazine creel (100), described lens set (101) drives translation motion in certain effective focusing range by described focusing structure, it is characterized in that, this focus control also comprises position limiting structure (300), regulates described position limiting structure (300) and makes an end position of described effective focusing range of described lens set (101) be determined.
2. focus control according to claim 1, it is characterized in that, described focusing structure comprises focusing motor (200) and rotatablely moving of described focusing motor (200) axle head is converted into to the conversion of motion device of the translation motion of described lens set (101) in described camera lens stationary magazine creel (100);
On described camera lens stationary magazine creel (100) lateral wall, offer stopper slot (102), described lens set (101) is provided with position-limitting pin (103), described position-limitting pin (103) passes described stopper slot (102), makes described lens set (101) mobile in described camera lens stationary magazine creel (100) along the track of described stopper slot (102); Described conversion of motion device is connected with described position-limitting pin (103).
3. focus control according to claim 2, it is characterized in that, described conversion of motion device comprises the focusing wheel (201) that is driven rotation by described focusing motor (200), on described focusing wheel (201), offer camber line mounting hole (202), described position-limitting pin (103) passes described camber line mounting hole (202), described focusing motor (200) drives described focusing wheel (201) and rotates, described position-limitting pin (103) moves along the track of described camber line mounting hole (202), thereby it is mobile in described camera lens stationary magazine creel (100) to promote described lens set (101);
The end of described position limiting structure (300) passes position-limitting pin (103) butt in described focusing wheel (201) and described camber line mounting hole (202).
4. focus control according to claim 3, it is characterized in that, described position limiting structure (300) comprises the straight-line groove (301) be arranged on described camera lens stationary magazine creel (100) and the spacer pin (302) that can move back and forth in described straight-line groove (301), and described spacer pin (302) contacts with the lateral edges that (201) are taken turns in described focusing.
5. focus control according to claim 2, it is characterized in that, described conversion of motion device comprises belt gear (400) or the worm-and-wheel gear (500) driven by described focusing motor (200), the topworks of described belt gear (400) or worm-and-wheel gear (500) end is provided with focusing wheel (306), on described focusing wheel (306), offer camber line mounting hole (307), described position-limitting pin (103) passes described camber line mounting hole (307), described focusing motor (200) drives described focusing wheel (306) and rotates, described position-limitting pin (103) moves along the track of described camber line mounting hole (307), thereby it is mobile in described camera lens stationary magazine creel (100) to promote described lens set (101),
The end of described position limiting structure (300) passes position-limitting pin (103) butt in described focusing wheel (306) and described camber line mounting hole (307).
6. according to claim 3 or the described focus control of 5 any one, it is characterized in that, described position limiting structure (300) is arranged on described focusing wheel (201,306) top, comprise and be screwed onto described focusing wheel (201,306) stop screw at top or be plugged in the wedge at described focusing wheel (201,306) top.
7. focus control according to claim 2, it is characterized in that, described conversion of motion device comprises the gear (203) that is fixed on described focusing motor (200) axle head and the tooth bar (204) be connected with described camera lens stationary magazine creel (100), described position limiting structure (300) comprises the threaded block that is arranged on described tooth bar (204) end one side and the set screw be spirally connected with described threaded block, and the end of described set screw points to the end of described tooth bar (204).
8. focus control according to claim 2, it is characterized in that, described conversion of motion device comprises fixed sturcture (303), is arranged in described fixed sturcture (303) and the focusing screw (304) be connected with described focusing motor (200) axle head and the focusing nut (305) be spirally connected with described focusing screw (304), and described position-limitting pin (103) is connected with described focusing nut (305); Described position limiting structure (300) comprises the stop screw be arranged on described fixed sturcture (303), and described focusing nut (305) is pointed in the end of described stop screw, and its axis is parallel with the axis of described focusing screw (304).
9. an optical projection system, is characterized in that, comprises at least one projector equipment, and described projector equipment comprises as the described focus control of claim 1-8 any one.
10. optical projection system according to claim 9, is characterized in that, this optical projection system also comprises distance-sensor and/or be used to controlling the control desk of described projector equipment.
11. optical projection system according to claim 10, is characterized in that, described control desk comprises the DMX512 control desk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203785828U CN203311078U (en) | 2013-06-18 | 2013-06-18 | Focusing device and projecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203785828U CN203311078U (en) | 2013-06-18 | 2013-06-18 | Focusing device and projecting system |
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| CN203311078U true CN203311078U (en) | 2013-11-27 |
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| CN2013203785828U Expired - Fee Related CN203311078U (en) | 2013-06-18 | 2013-06-18 | Focusing device and projecting system |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301885A (en) * | 2015-11-30 | 2016-02-03 | 成都市极米科技有限公司 | Focus determining system, focus determining method and remote controller pairing method of projection device |
| CN105527692A (en) * | 2016-02-17 | 2016-04-27 | 信利光电股份有限公司 | Lens group focusing method and focusing device |
| WO2016095235A1 (en) * | 2014-12-19 | 2016-06-23 | 神画科技（深圳）有限公司 | Automatic focusing method for projector |
| CN106019779A (en) * | 2016-05-26 | 2016-10-12 | 苏州佳世达光电有限公司 | Lens adjustment device and projector employing same |
| CN106094401A (en) * | 2016-07-26 | 2016-11-09 | 深圳Tcl数字技术有限公司 | The focusing structure of micro-throwing display device and micro-throwing display device |
| CN107472985A (en) * | 2016-06-07 | 2017-12-15 | 合肥神马科技集团有限公司 | A kind of elevating mechanism of actinobacillus device |
| CN108180385A (en) * | 2017-12-28 | 2018-06-19 | 中国华录集团有限公司 | The adjustable full-bearing type projector of setting angle |
| CN108803206A (en) * | 2017-04-26 | 2018-11-13 | 扬明光学股份有限公司 | lens adjusting mechanism |
| CN109188831A (en) * | 2018-09-28 | 2019-01-11 | 苏州佳世达光电有限公司 | Imaing projector |
| CN109613786A (en) * | 2018-12-17 | 2019-04-12 | 中国科学院长春光学精密机械与物理研究所 | A kind of camera gear straight line switching device and optical camera |
| CN109725478A (en) * | 2017-10-30 | 2019-05-07 | 深圳光峰科技股份有限公司 | A kind of projector's motor-driven lens displacement structure and projector |
| CN110475060A (en) * | 2018-05-11 | 2019-11-19 | 佳能株式会社 | Control equipment and control method |
| CN110771133A (en) * | 2018-11-15 | 2020-02-07 | 深圳市大疆创新科技有限公司 | Camera lens adjusting method and device, control equipment and control system |
| WO2020097886A1 (en) * | 2018-11-15 | 2020-05-22 | 深圳市大疆创新科技有限公司 | Camera lens adjustment method and apparatus, control device and control system |
| WO2020097889A1 (en) * | 2018-11-15 | 2020-05-22 | 深圳市大疆创新科技有限公司 | Camera lens adjusting method, apparatus, control device and control system |
| CN111474661A (en) * | 2020-05-29 | 2020-07-31 | 中国科学院长春光学精密机械与物理研究所 | Uniform force focusing mechanism driven by inclined guide rail |
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2013
- 2013-06-18 CN CN2013203785828U patent/CN203311078U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016095235A1 (en) * | 2014-12-19 | 2016-06-23 | 神画科技（深圳）有限公司 | Automatic focusing method for projector |
| CN105301885A (en) * | 2015-11-30 | 2016-02-03 | 成都市极米科技有限公司 | Focus determining system, focus determining method and remote controller pairing method of projection device |
| CN105527692A (en) * | 2016-02-17 | 2016-04-27 | 信利光电股份有限公司 | Lens group focusing method and focusing device |
| CN105527692B (en) * | 2016-02-17 | 2018-07-24 | 信利光电股份有限公司 | A kind of lens group focus adjustment method and focus control |
| CN106019779A (en) * | 2016-05-26 | 2016-10-12 | 苏州佳世达光电有限公司 | Lens adjustment device and projector employing same |
| CN107472985A (en) * | 2016-06-07 | 2017-12-15 | 合肥神马科技集团有限公司 | A kind of elevating mechanism of actinobacillus device |
| CN106094401A (en) * | 2016-07-26 | 2016-11-09 | 深圳Tcl数字技术有限公司 | The focusing structure of micro-throwing display device and micro-throwing display device |
| CN106094401B (en) * | 2016-07-26 | 2019-02-01 | 深圳Tcl数字技术有限公司 | Micro- focusing structure for throwing display device and micro- throwing display device |
| CN108803206A (en) * | 2017-04-26 | 2018-11-13 | 扬明光学股份有限公司 | lens adjusting mechanism |
| CN108803206B (en) * | 2017-04-26 | 2022-03-08 | 扬明光学股份有限公司 | Lens adjusting mechanism |
| CN109725478A (en) * | 2017-10-30 | 2019-05-07 | 深圳光峰科技股份有限公司 | A kind of projector's motor-driven lens displacement structure and projector |
| WO2019085253A1 (en) * | 2017-10-30 | 2019-05-09 | 深圳光峰科技股份有限公司 | Projector motor-driven lens shifting structure and projector |
| CN108180385A (en) * | 2017-12-28 | 2018-06-19 | 中国华录集团有限公司 | The adjustable full-bearing type projector of setting angle |
| CN108180385B (en) * | 2017-12-28 | 2019-10-18 | 中国华录集团有限公司 | The adjustable full-bearing type projector of setting angle |
| CN110475060A (en) * | 2018-05-11 | 2019-11-19 | 佳能株式会社 | Control equipment and control method |
| US10958844B2 (en) | 2018-05-11 | 2021-03-23 | Canon Kabushiki Kaisha | Control apparatus and control method |
| US10901170B2 (en) | 2018-09-28 | 2021-01-26 | Qisda Corporation | Image projection device |
| CN109188831A (en) * | 2018-09-28 | 2019-01-11 | 苏州佳世达光电有限公司 | Imaing projector |
| CN109188831B (en) * | 2018-09-28 | 2021-06-15 | 苏州佳世达光电有限公司 | Image projection device |
| CN110771133A (en) * | 2018-11-15 | 2020-02-07 | 深圳市大疆创新科技有限公司 | Camera lens adjusting method and device, control equipment and control system |
| WO2020097889A1 (en) * | 2018-11-15 | 2020-05-22 | 深圳市大疆创新科技有限公司 | Camera lens adjusting method, apparatus, control device and control system |
| WO2020097887A1 (en) * | 2018-11-15 | 2020-05-22 | 深圳市大疆创新科技有限公司 | Camera lens adjustment method and device, control apparatus, and control system |
| WO2020097886A1 (en) * | 2018-11-15 | 2020-05-22 | 深圳市大疆创新科技有限公司 | Camera lens adjustment method and apparatus, control device and control system |
| CN109613786B (en) * | 2018-12-17 | 2020-10-13 | 中国科学院长春光学精密机械与物理研究所 | Camera gear linear switching device and optical camera |
| CN109613786A (en) * | 2018-12-17 | 2019-04-12 | 中国科学院长春光学精密机械与物理研究所 | A kind of camera gear straight line switching device and optical camera |
| CN111474661A (en) * | 2020-05-29 | 2020-07-31 | 中国科学院长春光学精密机械与物理研究所 | Uniform force focusing mechanism driven by inclined guide rail |
| CN111474661B (en) * | 2020-05-29 | 2021-06-15 | 中国科学院长春光学精密机械与物理研究所 | Uniform force focusing mechanism driven by inclined guide rail |
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