CN104808432A - Focusing device of camera - Google Patents
Focusing device of camera Download PDFInfo
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- CN104808432A CN104808432A CN201510178402.5A CN201510178402A CN104808432A CN 104808432 A CN104808432 A CN 104808432A CN 201510178402 A CN201510178402 A CN 201510178402A CN 104808432 A CN104808432 A CN 104808432A
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Abstract
The invention provides a focusing device of a camera, belongs to the technical field of camera focusing equipment, and aims to solve the problem of low focusing precision of the focusing device in the prior art. The focusing device of the camera comprises a rack and a rotating disc which is horizontally arranged on the rack and can rotate, wherein the rotating disc is provided with a carrier capable of placing the camera; the carrier comprises a positioning frame and a positioning plate which is fixedly arranged on the positioning frame; the positioning frame is fixedly arranged on the rotating disc; the upper surface of the positioning plate is provided with a circular positioning groove; the groove wall of the positioning groove is provided with a plurality of supporting columns at a uniform interval along the circumferential direction; the upper end faces of the supporting columns are also fixedly connected with vertically arranged positioning columns; the rack is also fixedly connected with a supporting frame at the edge of the rotating disc; the supporting frame is provided with a carrying plate; the carrying plate is provided with a focusing belt pulley in a rotating manner. The device has the advantage of high focusing precision.
Description
Technical field
The invention belongs to quickcam image focusing equipment technical field, relate to a kind of focus control of camera.
Background technology
At present, along with the development of electronics technology, various electronic product, demand as the camera on mobile phone, notebook computer gets more and more, more and more higher to the dependency degree of image technique, the pixel value of camera is also more and more higher, therefore also requires more strict to the sharpness of camera shooting image, correspondingly it is also proposed higher requirement to the product quality of camera.
The optical lens of each camera has the focal length determined, the imaging surface that namely existence one is best.Due to a variety of causes such as camera processing technology and carryings, the photoreceptor of camera may depart from this optimal imaging face, causes camera imaging not good, therefore needs to carry out focus adjustment to camera.
As Chinese patent literature discloses a kind of camera module focusing proving installation (application number: 201220187963.3), this device comprises working plate, described working plate is provided with the sliding platform for carrying tested mainboard, described sliding platform can relative to working plate horizontal slip, described working plate is fixed with one perpendicular to the bracing frame of working plate, described bracing frame is provided with focusing head module, described focusing head module can relative to bracing frame vertical sliding motion.Camera comprises two parts, a camera lens, a main body, during focusing, is realize by driving camera lens opposing body to rotate.This device also can realize focusing to camera, but, because this device is when focusing, main body is arranged on working plate, working plate lacks the structure positioned main body, cause in the process of rotating lens or in the process of working plate movement, main body can produce and loosen or rotate, thus affect focusing accuracy, cause error.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of focus control of camera, technical matters to be solved by this invention is the precision how promoting quickcam image focusing.
Object of the present invention realizes by following technical proposal: a kind of focus control of camera, comprise frame and be horizontally set on the rotating disk that frame also can be rotated, it is characterized in that, described rotating disk is provided with the carrier placing camera, described carrier comprises locating rack and is fixed on the location-plate on locating rack, described locating rack is fixed on rotating disk, the upper surface of described location-plate offers circular locating slot, on the cell wall of described locating slot, circumferentially uniform intervals is provided with some support columns, the upper surface of described support column is also fixed with the reference column vertically arranged, described frame is positioned at disk edge and is also fixed with bracing frame, support frame as described above is provided with supporting plate, described supporting plate rotates and is provided with focusing belt wheel, the middle part of described focusing belt wheel offers conical through-hole, the big uncork end of this conical through-hole is towards upper, the bottom of described focusing belt wheel is fixed with in annular and middle part has the driver blade of through hole, through hole internal fixtion in the middle part of described driver blade is socketed with rotary sleeve, the middle part of described rotary sleeve has focusing hole, the hole wall in described focusing hole is the flank of tooth, described supporting plate is provided with the drives structure one that can drive focusing belt wheel forward or reverse, support frame as described above is also provided with the drives structure two that supporting plate can be driven vertically to move up and down on bracing frame.
Camera comprises two parts, a camera lens, a main body, the rounded tabular of camera body, and offers some pilot holes at edge uniform intervals, and the quantity of this pilot hole is identical with the quantity of locating slot inner support post.Main body is placed on carrier, the location of camera on carrier can be realized.Particularly, the camera body of circular plate-like shape is placed in location, make multiple pilot hole difference one_to_one corresponding through multiple reference column, reference column realizes fixing camera circumference, make in focussing process and in the process of camera with carrier movement, camera body all can not produce rotation, ensures the accuracy of focusing.And the bottom surface of camera body is resisted against on the upper surface of support column, realize the supporting and location to camera.Further, camera body rides against on the upper surface of support column, therefore has gap between camera body bottom surface and locating slot diapire, and energy available protecting camera body, avoids camera body to rub impaired like this, improves the quality of camera.After camera is had good positioning, start the process of carrying out focusing, particularly, first supporting plate is driven to move downward by drives structure two, now rotary sleeve is along with moving downward together, and press down contact camera lens, control camera to start to take pictures, and the image got by software identification camera lens judges focusing situation, feed back to drives structure one action and complete focusing work, focusing belt wheel is driven to rotate forward or backwards, because rotary sleeve and driver blade are connected, driver blade is connected with focusing belt wheel, therefore can rotate by driven rotary cover when belt wheel of focusing rotates, realize the focusing position replacing manual adjustments camera lens, camera lens is made to arrive a best imaging surface, focusing completes.
In the focus control of above-mentioned camera, the quantity of described reference column and support column is 3.
In the focus control of above-mentioned camera, described supporting plate offers respectively mounting hole one and mounting hole two, described mounting hole one and mounting hole two all run through the upper and lower plates face of supporting plate, and described focusing belt wheel is arranged in described mounting hole one by bearing.
In the focus control of above-mentioned camera, described drives structure one comprises the stepper motor be installed in bottom supporting plate, the output shaft of described stepper motor passes described mounting hole two straight up and is connected with electrical machine belt pulley, be arranged with the driving-belt making both synchronous axial system between described electrical machine belt pulley and described focusing belt wheel, the diameter of described electrical machine belt pulley is less than the diameter of described focusing belt wheel.The diameter of electrical machine belt pulley is less than the diameter of described focusing belt wheel, and the linear velocity of therefore electrical machine belt pulley rotation, much larger than the linear velocity of focusing belt wheel, achieves deceleration, is conducive to control cincture like this and moves the accurate angle of rotation of lens, promotes focusing precision.
In the focus control of above-mentioned camera, described drives structure two comprises elevator and screw rod, described screw rod is vertically arranged and two ends are rotatably connected on bracing frame, described elevator is provided with threaded hole, described screw flight is located in described threaded hole, described supporting plate is connected on described elevator, also there is the pilot hole that vertically two ends are run through between described elevator and described supporting plate, support frame as described above is fixed with the guide plate that vertical direction is arranged, described guide plate passes described pilot hole and both energy relative slidings, the bottom of described frame is installed with the servomotor that can drive bolt rotary.The principle of work of drives structure two is: servomotor can rotate and reverse, and servomotor drives bolt rotary, and elevator and screw rod are spirally connected, and supporting plate is connected on described elevator simultaneously, therefore can drive elevator and supporting plate oscilaltion during bolt rotary.Guide plate and pilot hole form guide effect to the mobile of elevator, make elevator can only along the stable movement of vertical direction, skew can not be produced, therefore rotary sleeve can be made also accurately to move straight down, convenient to dock with camera lens, prevent from rotary sleeve from docking with camera lens misplacing and affect the stability of focus precision and complete machine.
In the focus control of above-mentioned camera, the upper surface of described support column is smooth plane, and the upper surface of described reference column is sphere.The upper surface of support column is smooth plane, can with camera body bottom surface stably coordinate against, make camera positioning stablity, ensure focusing accuracy.In addition, the upper surface of reference column is sphere, and sphere has guide effect, and reference column is conveniently penetrated on camera in pilot hole, ensures stability and the high-level efficiency of camera put procedure.
In the focus control of above-mentioned camera, described locating rack comprises left support plate, right support plate and upper backup pad, described left support plate and right support plate interval are arranged, bottom and the rotating disk of described left support plate and right support plate are connected, described upper backup pad level is connected in the upper end of left support plate and right support plate, and described location-plate level is connected in the upper surface of upper backup pad.
Compared with prior art, the focus control of this camera has the following advantages:
1, carrier has circular locating slot, multiple support column is provided with in locating slot, multiple support column can match with the pilot hole in camera body, make camera can realize stable placement on carrier, prevent in focussing process with in the process of camera with carrier movement, camera body produces and loosens and rotate, and ensures focusing accuracy.
2, the focus control of this camera also has that focussing process is stable, work efficiency advantages of higher.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention.
Fig. 2 is partial perspective view of the present invention.
Fig. 3 is the perspective view of carrier.
Fig. 4 is partial sectional view of the present invention.
In figure, 1, frame; 2, rotating disk; 3, carrier; 31, locating rack; 31a, left support plate; 31b, right support plate; 31c, upper backup pad; 32, location-plate; 32a, locating slot; 32b, support column; 32c, reference column; 4, bracing frame; 5, supporting plate; 51, mounting hole one; 52, mounting hole two; 6, focusing belt wheel; 61, conical through-hole; 7, driver blade; 8, rotary sleeve; 81, focusing hole; 9, bearing; 10, stepper motor; 11, electrical machine belt pulley; 12, driving-belt; 13, elevator; 131, threaded hole; 14, screw rod; 15, pilot hole; 16, guide plate; 17, servomotor.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figures 1 to 4, camera comprises two parts, a camera lens, a main body, the rounded tabular of camera body, and offers 3 pilot holes at edge uniform intervals.The focus control of this camera comprises frame 1 and is horizontally set on the rotating disk 2 that frame 1 also can be rotated, rotating disk 2 is provided with the carrier 3 placing camera, the location-plate 32 that carrier 3 comprises locating rack 31 and is fixed on locating rack 31, locating rack 31 is fixed on rotating disk 2.Particularly, locating rack 31 comprises left support plate 31a, right support plate 31b and upper backup pad 31c, left support plate 31a and right support plate 31b interval are arranged, bottom and the rotating disk 2 of left support plate 31a and right support plate 31b are connected, upper backup pad 31c level is connected in the upper end of left support plate 31a and right support plate 31b, and location-plate 32 level is connected in the upper surface of back up pad.The upper surface of location-plate 32 offers circular locating slot 32a, and on the cell wall of locating slot 32a, circumferentially uniform intervals is provided with 3 support column 32b, each support column 32b upper surface on be also fixed with the reference column 32c vertically arranged.The upper surface of support column 32b is smooth plane, and the upper surface of reference column 32c is sphere.The upper surface of support column 32b is smooth plane, can with camera body bottom surface stably coordinate against, make camera positioning stablity, ensure focusing accuracy.In addition, the upper surface of reference column 32c is sphere, and sphere has guide effect, and reference column 32c is conveniently penetrated on camera in pilot hole, ensures stability and the high-level efficiency of camera put procedure.When placing camera, the camera body of circular plate-like shape is placed in location, make multiple pilot hole difference one_to_one corresponding through multiple reference column 32c, reference column 32c realizes fixing camera circumference, make in focussing process and in the process of camera with carrier 3 movement, camera body all can not produce rotation, ensures the accuracy of focusing.And the bottom surface of camera body is resisted against on the upper surface of support column 32b, realize the supporting and location to camera.And; camera body rides against on the upper surface of support column 32b, therefore has gap between camera body bottom surface and locating slot 32a diapire, like this energy available protecting camera body; avoid camera body to rub impaired, improve the quality of camera.
Frame 1 is positioned at rotating disk 2 edge and is also fixed with bracing frame 4, bracing frame 4 is fixed with supporting plate 5, supporting plate 5 offers respectively mounting hole 1 and mounting hole 2 52, mounting hole 1 and mounting hole 2 52 all run through the upper and lower plates face of supporting plate 5, in mounting hole 1, bearing 9 are provided with focusing belt wheel 6.The middle part of focusing belt wheel 6 offers conical through-hole 61, the big uncork end of this conical through-hole 61 is towards upper, the bottom of focusing belt wheel 6 is fixed with in annular and middle part has the driver blade 7 of through hole, through hole internal fixtion in the middle part of driver blade 7 is socketed with rotary sleeve 8, the middle part of rotary sleeve 8 has focusing hole 81, the hole wall in focusing hole 81 is the flank of tooth, supporting plate 5 is provided with the drives structure one that can drive focusing belt wheel 6 forward or reverse, bracing frame 4 is also provided with the drives structure two that supporting plate 5 can be driven vertically to move up and down on bracing frame 4.Particularly, drives structure one comprises the stepper motor 10 be installed in bottom supporting plate 5, the output shaft of stepper motor 10 passes mounting hole 2 52 straight up and is connected with electrical machine belt pulley 11, be arranged with the driving-belt 12 making both synchronous axial system between electrical machine belt pulley 11 and focusing belt wheel 6, the diameter of electrical machine belt pulley 11 is less than the diameter of focusing belt wheel 6.The diameter of electrical machine belt pulley 11 is less than the diameter of focusing belt wheel 6, and the linear velocity of therefore electrical machine belt pulley 11 rotation, much larger than the linear velocity of focusing belt wheel 6, achieves deceleration, is conducive to control cincture like this and moves the accurate angle of rotation of lens, promotes focusing precision.
Drives structure two comprises elevator 13, screw rod 14 and erecting frame, screw rod 14 vertically arranges and two ends are rotatably connected on bracing frame 4, elevator 13 is provided with threaded hole 131, screw rod 14 screw thread is located in threaded hole 131, supporting plate 5 is connected on elevator 13, also there is the pilot hole 15 that vertically two ends are run through between elevator 13 and supporting plate 5, erecting frame is fixed with the guide plate 16 that vertical direction is arranged, guide plate 16 passes pilot hole 15 and both energy relative slidings, and the bottom of frame 1 is installed with the servomotor 17 that screw rod 14 can be driven to rotate.Guide plate 16 forms guide effect with the mobile of pilot hole 15 pairs of elevators 13, make elevator 13 can only along the stable movement of vertical direction, skew can not be produced, therefore rotary sleeve 8 can be made also accurately to move straight down, convenient to dock with camera lens, prevent from rotary sleeve 8 from docking with camera lens misplacing and affect the stability of focus precision and complete machine.
After camera is had good positioning, start the process of carrying out focusing, particularly, servomotor 17 drives screw rod 14 to rotate, and elevator 13 and screw rod 14 are spirally connected, supporting plate 5 is connected on elevator 13 simultaneously, therefore elevator 13 can be driven when screw rod 14 rotates to move down with supporting plate 5 and press down and to contact camera lens, control camera to start to take pictures, and the image got by software identification camera lens judges focusing situation, feed back to stepper motor 10 action and complete focusing work, focusing belt wheel 6 is driven to rotate forward or backwards, because rotary sleeve 8 and driver blade 7 are connected, driver blade 7 is connected with focusing belt wheel 6, therefore can rotate by driven rotary cover 8 when belt wheel 6 of focusing rotates, realize the focusing position replacing manual adjustments camera lens, camera lens is made to arrive a best imaging surface, focusing completes.Afterwards, servomotor 17 operates again, drives elevator 13 and supporting plate 5 to move up, arrives initial position, so circulate.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ 1 herein, frame; 2, rotating disk; 3, carrier; 31, locating rack; 31a, left support plate; 31b, right support plate; 31c, upper backup pad; 32, location-plate; 32a, locating slot; 32b, support column; 32c, reference column; 4, bracing frame; 5, supporting plate; 51, mounting hole one; 52, mounting hole two; 6, focusing belt wheel; 61, conical through-hole; 7, driver blade; 8, rotary sleeve; 81, focusing hole; 9, bearing; 10, stepper motor; 11, electrical machine belt pulley; 12, driving-belt; 13, elevator; 131, threaded hole; 14, screw rod; 15, pilot hole; 16, guide plate; 17, the term such as servomotor, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (7)
1. the focus control of a camera, comprise frame and be horizontally set on the rotating disk that frame also can be rotated, it is characterized in that, described rotating disk is provided with the carrier placing camera, described carrier comprises locating rack and is fixed on the location-plate on locating rack, described locating rack is fixed on rotating disk, the upper surface of described location-plate offers circular locating slot, on the cell wall of described locating slot, circumferentially uniform intervals is provided with some support columns, the upper surface of described support column is also fixed with the reference column vertically arranged, described frame is positioned at disk edge and is also fixed with bracing frame, support frame as described above is provided with supporting plate, described supporting plate rotates and is provided with focusing belt wheel, the middle part of described focusing belt wheel offers conical through-hole, the big uncork end of this conical through-hole is towards upper, the bottom of described focusing belt wheel is fixed with in annular and middle part has the driver blade of through hole, through hole internal fixtion in the middle part of described driver blade is socketed with rotary sleeve, the middle part of described rotary sleeve has focusing hole, the hole wall in described focusing hole is the flank of tooth, described supporting plate is provided with the drives structure one that can drive focusing belt wheel forward or reverse, support frame as described above is also provided with the drives structure two that supporting plate can be driven vertically to move up and down on bracing frame.
2. the focus control of camera according to claim 1, is characterized in that, the quantity of described reference column and support column is 3.
3. the focus control of camera according to claim 2, it is characterized in that, described supporting plate offers respectively mounting hole one and mounting hole two, described mounting hole one and mounting hole two all run through the upper and lower plates face of supporting plate, and described focusing belt wheel is arranged in described mounting hole one by bearing.
4. the focus control of camera according to claim 3, it is characterized in that, described drives structure one comprises the stepper motor be installed in bottom supporting plate, the output shaft of described stepper motor passes described mounting hole two straight up and is connected with electrical machine belt pulley, be arranged with the driving-belt making both synchronous axial system between described electrical machine belt pulley and described focusing belt wheel, the diameter of described electrical machine belt pulley is less than the diameter of described focusing belt wheel.
5. the focus control of camera according to claim 4, it is characterized in that, described drives structure two comprises elevator and screw rod, described screw rod is vertically arranged and two ends are rotatably connected on bracing frame, described elevator is provided with threaded hole, described screw flight is located in described threaded hole, described supporting plate is connected on described elevator, also there is the pilot hole that vertically two ends are run through between described elevator and described supporting plate, support frame as described above is fixed with the guide plate that vertical direction is arranged, described guide plate passes described pilot hole and both energy relative slidings, the bottom of described frame is installed with the servomotor that can drive bolt rotary.
6. the focus control of camera according to claim 5, is characterized in that, the upper surface of described support column is smooth plane, and the upper surface of described reference column is sphere.
7. the focus control of camera according to claim 6, it is characterized in that, described locating rack comprises left support plate, right support plate and upper backup pad, described left support plate and right support plate interval are arranged, bottom and the rotating disk of described left support plate and right support plate are connected, described upper backup pad level is connected in the upper end of left support plate and right support plate, and described location-plate level is connected in the upper surface of upper backup pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178402.5A CN104808432A (en) | 2015-04-15 | 2015-04-15 | Focusing device of camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510178402.5A CN104808432A (en) | 2015-04-15 | 2015-04-15 | Focusing device of camera |
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| CN104808432A true CN104808432A (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510178402.5A Pending CN104808432A (en) | 2015-04-15 | 2015-04-15 | Focusing device of camera |
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| CN (1) | CN104808432A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107859824A (en) * | 2017-10-25 | 2018-03-30 | 东莞华贝电子科技有限公司 | A kind of APP sensibility testing arrangements of terminal |
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| JP2005300169A (en) * | 2004-04-06 | 2005-10-27 | Matsushita Electric Ind Co Ltd | Three-dimensional measuring device |
| CN1841891A (en) * | 2005-03-31 | 2006-10-04 | 日本电产科宝株式会社 | Electromagnetic actuator and camera blade driving device |
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Application publication date: 20150729 |