CN115361498B - Automatic focusing device of code scanning camera and working method thereof - Google Patents
Automatic focusing device of code scanning camera and working method thereof Download PDFInfo
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- CN115361498B CN115361498B CN202210947181.3A CN202210947181A CN115361498B CN 115361498 B CN115361498 B CN 115361498B CN 202210947181 A CN202210947181 A CN 202210947181A CN 115361498 B CN115361498 B CN 115361498B
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 230000001960 triggered effect Effects 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 description 10
- 230000001681 protective effect Effects 0.000 description 8
- 230000005389 magnetism Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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Abstract
The invention discloses an automatic focusing device of a code scanning camera and a working method thereof, belonging to the field of camera focusing; the lens box is provided with a lens assembly and focusing assemblies arranged on two sides of the lens assembly, the camera is focused, when the lens body needs focusing in use, the lifting motor is started through electric connection, the lifting motor moves upwards to push the two transverse supporting plates to two sides, and the movement of the transverse supporting plates drives the two focus adjusting plates to move upwards; the lifting motor in the focusing assembly moves upwards to push the two transverse supporting plates away to two sides, the movement of the transverse supporting plates drives the two focal length adjusting plates to move upwards, the auxiliary block fixed on the side wall of the lens body is triggered to move and then drives the lens body to move, preliminary focusing is completed, the focusing mode avoids the phenomenon that the previous focusing is carried out through friction between the inner circle of the cylindrical cam sleeve and the outer circle of the lens, resistance and instability factors are brought to the whole rotary motion, a clamping phenomenon occurs, and the focusing mode is simplified.
Description
Technical Field
The invention relates to the technical field of automatic focusing of cameras, in particular to an automatic focusing device of a code scanning camera and a working method thereof.
Background
In order to fully utilize the limited space, prior art code scanning devices typically project a projected image onto an opposing wall surface or projection screen. Along with the different use scenes, the position of the code scanning device and the wall surface or the projection screen projected by the projection image are changed, so that the distance between the code scanning device and the projection wall surface or the projection screen is also changed, and in the practical application process, code scanning payment is a very common mode in the lens application, and in order to make the projected image clearer, the focal length of the lens in the projection device is generally required to be correspondingly adjusted. Accordingly, a corresponding focusing device is provided in the conventional projection apparatus for adjusting the focal length of the lens.
The lens focusing is the most commonly used function when the lens sweeps the code, and the lens focusing realizes the linear motion of the lens barrel by manually or electrically rotating a focusing ring on the lens, thereby realizing the focusing function of the lens; the current industrial and commercial lens focusing is generally realized through a cylindrical cam sleeve, and the linear motion of the lens barrel requiring linear motion is realized through the rotation of the cylindrical cam sleeve relative to the lens barrel, so that the focusing function is realized, and the rotation of the cylindrical cam sleeve is generally realized in two modes of electric and manual; the first mode can cause friction between the inner circle of the cylindrical cam sleeve and the outer circle of the lens, and resistance and instability factors are brought to the whole rotation movement, so that the hand feeling and the precision of rotation are affected, and even a clamping phenomenon occurs; in the second method, although the direct contact between the inner circle of the cylindrical cam sleeve and the outer circle of the lens is avoided, the sliding friction is changed into rolling friction, but a plurality of steel balls are uniformly distributed on the circumference, so that the caliber size of the whole structure is increased, and a plurality of steel balls also increase the assembly complexity and reduce the reliability of the system;
therefore, a new design solution is needed to solve the problem of high focusing complexity of the code scanning camera in the background art.
Disclosure of Invention
The invention aims to provide an automatic focusing device of a code scanning camera and a working method thereof, which solve the problems in the background art.
The aim of the invention can be achieved by the following technical scheme:
the automatic focusing device of the code scanning camera comprises a lens box, wherein a lens assembly and focusing assemblies arranged on two sides of the lens assembly are arranged on the lens box;
the lens assembly comprises a lens housing cover and a lens body, wherein the lens body is movably arranged on the lens housing cover, a steering connecting plate is arranged below the lens body, more specifically, the lens housing can block external light in a photo after being arranged, in addition, the lens assembly is also beneficial to protecting the lens from being damaged, so that a user is prevented from carelessly bumping into the lens assembly, as long as a simple accessory is arranged on the lens assembly, the user can greatly improve the image quality, and the service life of the lens is prolonged.
Further, both sides of turning to the connecting plate all are equipped with the slope subassembly, and the slope subassembly is including turning to the piece, and the top that turns to the piece is equipped with two guide bars, and the one end of two guide bars all rotates with the piece of turning to be connected, and the other end of guide bar rotates with two magnetism respectively to be connected with, fixedly connected with spring between the guide bar, magnetism detains the slip setting at the removal intracavity of seting up in lens body bottom.
Furthermore, two electromagnetic coils are symmetrically arranged on two sides of the lens body, each electromagnetic coil is matched with the corresponding magnetic buckle for use, a waist groove is formed in the lens body, and a ring is sleeved in the waist groove; the focusing assembly comprises focal length adjusting plates symmetrically arranged on two sides of the lens housing cover, fixing blocks are arranged on the inner walls of the focal length adjusting plates, and the focal length adjusting plates are fixedly connected with the annular rings through the fixing blocks; the bottoms of the focal length adjusting plates are respectively provided with a transverse supporting plate correspondingly, and a lifting motor is arranged between the two transverse supporting plates; the transverse supporting plate is parallelogram, and the abutting surface of the focal length adjusting plate and the transverse supporting plate corresponds to the shape of the transverse supporting plate.
Further, the outside of lens box still is provided with the protection subassembly, and the protection subassembly includes that two symmetries set up the protection backup pad at the lens box lateral wall, and the top of protection backup pad all sets up flutedly, all is equipped with the guard bar in the recess, is connected with the protection piece of penetrating between two guard bars, fixedly on the outside of lens body is provided with a plurality of auxiliary block.
The protective transparent sheet can be high-transparent glass, and the protective transparent sheet does not influence imaging effect; the UV mirror can also be selected, the influence that ultraviolet ray produced is filtered to the UV mirror, other aspects are little to the image quality influence, also use as the protection perspective piece more, also can be multiple colours on the colour selection of protection perspective piece, can increase the colour of dusk like yellow filter, and blue filter can strengthen sky effect, when the user specifically uses, can produce positive influence to the effect of shooing, improves the effect of shooing.
Further, the method comprises the following steps:
step one: when the lens body is used and needs focusing, the lifting motor is started through electric connection, and moves upwards to push the two transverse supporting plates to two sides, and the movement of the transverse supporting plates drives the two focal length adjusting plates to move upwards;
step two: the ring moves upwards under the drive of the focal length adjusting plate, and the auxiliary block fixed on the side wall of the lens body is triggered to move to drive the lens body to move so as to finish primary focusing;
step three: the lower part of the lens body is provided with a steering connecting plate, two sides of the steering connecting plate are provided with tilting components, and under the power state, the magnetic buckle tilts towards the electromagnetic coil to finish zooming.
Compared with the prior art, the invention has the beneficial effects that:
(1) The lens assembly and the focusing assembly are arranged, the lifting motor in the focusing assembly moves upwards to push the two transverse supporting plates to two sides, the movement of the transverse supporting plates drives the two focal length adjusting plates to move upwards, the annular ring moves upwards under the drive of the focal length adjusting plates, the auxiliary block fixed on the side wall of the lens body is triggered to move and then drives the lens body to move, and preliminary focusing is completed;
(2) Through solenoid's setting, when the camera lens needs rotatory focusing, connect the power, isomorphic magnetism detains the cooperation with solenoid, and magnetism detains the drive guide bar and removes the chamber, and the deflection of control camera lens body sets up the spring of guide bar quality inspection simultaneously and plays the injecing to the guide bar, controls the deviation, accomplishes the focusing.
(3) Through setting up the protection and pass through the piece, select different materials, filter unnecessary ultraviolet ray, and the colour of protecting and pass through the piece is selected and is selected the selectable scope very big, produces different positive influences to different shooting or scanning sign indicating number scenes, has improved the user and has felt the use of product.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;
FIG. 2 is a schematic perspective view of a protective assembly according to the present invention;
FIG. 3 is a side view of the overall three-dimensional structure of the present invention;
FIG. 4 is a cross-sectional view of a lens assembly of the present invention;
fig. 5 is an enlarged view of fig. 4 at a in accordance with the present invention.
In the figure: 1. a lens box; 2. a lens assembly; 3. a focusing assembly; 4. a protective assembly; 21. a lens housing; 22. a lens body; 23. an auxiliary block; 24. a loop; 25. a guide rod; 26. an electromagnetic coil; 27. a steering connecting plate; 28. a steering block; 29. a spring; 210. a magnetic button; 211. a moving chamber; 31. a focal length adjusting plate; 32. a fixed block; 33. a transverse supporting plate; 34. a lifting motor; 41. a protective support plate; 42. a rotating lever; 43. a protective rod; 44. protective transparent sheet.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1-5, an automatic focusing device for a code scanning camera includes a lens box 1, wherein a lens assembly 2 and focusing assemblies 3 arranged on two sides of the lens assembly 2 are arranged on the lens box 1, and focus is performed on the camera;
the lens assembly 2 includes a lens housing 21 and a lens body 22, the lens body 22 is movably mounted on the lens housing 21, more specifically, the lens housing 21 can block external light in a photo after being mounted, in addition, it helps to protect the lens from being damaged, so as to prevent a user from carelessly striking the lens, and as long as a simple accessory is put on the lens, the user can greatly improve the image quality and prolong the service life of the lens. The lens hood is installed in front of the lens to block external light in the photo. The below of lens body 22 is equipped with turns to connecting plate 27, fixedly on the outside of lens body 22 is provided with a plurality of auxiliary block 23, the both sides of lens body 22 still symmetry are provided with two solenoid 26, every solenoid 26 all uses with magnetic button 210 cooperation respectively, move both ends about through electric drive magnetic button 210, rotate lens body 22, adjust the left and right sides of lens body 22 and remove, and the magnetic button 210 that sets up in the removal chamber 211 has fixed movable range, remove in this range, avoid lens body 22 to rotate too big and lead to sweeping the sign indicating number work and can not go on smoothly, and set up the waist groove on the lens body 22, annular ring 24 has been cup jointed in the waist groove, focusing assembly 3 is including the focus regulating plate 31 of symmetry setting in lens housing 21 both sides, the inner wall of focus regulating plate 31 all is equipped with fixed block 32, focus regulating plate 31 passes through fixed block 32 and annular ring 24 fixed connection, the bottom of focus regulating plate 31 all corresponds and is provided with transverse support plate 33, be provided with elevating motor in the middle of two transverse support plates 33, the cross-section of transverse support plate 33 is parallelogram, and the side view of transverse support plate 33 is the focus regulating plate 31 and the side view of focal length regulating plate 31 and transverse support plate 33 through the corresponding elevating plate 33.
Both sides of the steering connecting plate 27 are provided with tilting components, each tilting component comprises a steering block 28, two guide rods 25 are arranged above the steering block 28, one ends of the two guide rods 25 are rotationally connected with the steering block 28, the other ends of the guide rods 25 are rotationally connected with two magnetic buckles 210 respectively, springs 29 are fixedly connected between the guide rods 25, and the magnetic buckles 210 are slidably arranged in a moving cavity 211 formed in the bottom of the lens body 22.
The outer side of the lens box 1 is also provided with a protection component 4, the protection component 4 comprises two protection support plates 41 symmetrically arranged on the side wall of the lens box 1, the protection support plates 41 are rotatably arranged on the outer wall of the lens box 1 through rotating rods 42, the tops of the protection support plates 41 are respectively provided with a groove, the grooves are respectively internally provided with a protection rod 43, and a protection transparent sheet 44 is connected between the two protection rods 43;
the protective sheet 44 may be a high-transmission glass, which does not affect the imaging effect; the UV mirror can also be selected, the UV mirror filters out the influence that ultraviolet ray produced, and other aspects are little to the image quality influence, also use as protection perspective piece 44 in many ways, also can be multiple colours on the colour of protection perspective piece 44 is selected, like yellow filter can increase the colour of dusk, and blue filter can strengthen sky effect, when the user specifically uses, can produce positive influence to the effect of shooing, improves the effect of shooing.
Working principle:
the lens assembly 2 and the focusing assembly 3, the lifting motor 34 in the focusing assembly 3 moves upwards to push the two transverse supporting plates 33 to two sides, the movement of the transverse supporting plates 33 drives the two focal length adjusting plates 31 to move upwards, the annular ring 24 moves upwards under the driving of the focal length adjusting plates 31, the auxiliary block 23 fixed on the side wall of the lens body 22 is triggered to move and then drives the lens body 22 to move, primary focusing is completed, the phenomenon that the conventional focusing causes resistance and instability factors to the whole rotary motion through friction between the inner circle of the cylindrical cam sleeve and the outer circle of the lens is avoided, the rotary hand feeling and precision are further influenced, even a clamping phenomenon occurs, and the focusing mode is simplified;
through the setting of solenoid 26, when the camera lens needs rotatory focusing, the power is connected, isomorphic magnetism detains 210 and solenoid 26's cooperation, and magnetism detains 210 drive guide bar 25 and remove in the cavity 211, control the deflection of camera lens body 22, and the spring 29 that sets up at guide bar 25 quality inspection plays the restriction to guide bar 25 simultaneously, controls the deviation, accomplishes focusing.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (6)
1. The automatic focusing device of the code scanning camera comprises a lens box (1) and is characterized in that a lens assembly (2) and focusing assemblies (3) arranged on two sides of the lens assembly (2) are arranged on the lens box (1);
the lens assembly (2) comprises a lens shell cover (21) and a lens body (22), wherein the lens body (22) is movably arranged on the lens shell cover (21), and a steering connecting plate (27) is arranged below the lens body (22);
the two sides of the steering connecting plate (27) are respectively provided with an inclined assembly, the inclined assembly comprises a steering block (28), two guide rods (25) are arranged above the steering block (28), one ends of the two guide rods (25) are rotationally connected with the steering block (28), the other ends of the guide rods (25) are rotationally connected with two magnetic buckles (210) respectively, springs (29) are fixedly connected between the guide rods (25), and the magnetic buckles (210) are slidably arranged in a moving cavity (211) formed in the bottom of the lens body (22);
two electromagnetic coils (26) are symmetrically arranged on two sides of the lens body (22), each electromagnetic coil (26) is matched with the corresponding magnetic buckle (210), a waist groove is formed in the lens body (22), and a ring (24) is sleeved in the waist groove;
a plurality of auxiliary blocks (23) are fixedly arranged on the outer part of the lens body (22).
2. The automatic focusing device of the code scanning camera according to claim 1, wherein the focusing assembly (3) comprises focal length adjusting plates (31) symmetrically arranged on two sides of the lens housing (21), fixing blocks (32) are arranged on inner walls of the focal length adjusting plates (31), and the focal length adjusting plates (31) are fixedly connected with the annular rings (24) through the fixing blocks (32).
3. The automatic focusing device of the code scanning camera according to claim 2, wherein the bottoms of the focal length adjusting plates (31) are respectively provided with a transverse supporting plate (33), and a lifting motor (34) is arranged between the two transverse supporting plates (33).
4. A code scanning camera auto-focusing device according to claim 3, characterized in that the transverse supporting plate (33) is parallelogram, and the surface of the focal length adjusting plate (31) abutting against the transverse supporting plate (33) corresponds to the shape of the transverse supporting plate (33).
5. The automatic focusing device for the code scanning camera according to claim 1, wherein a protection component (4) is further arranged on the outer side of the lens box (1), the protection component (4) comprises two protection support plates (41) symmetrically arranged on the side wall of the lens box (1), the protection support plates (41) are rotatably arranged on the outer wall of the lens box (1) through rotating rods (42), grooves are formed in the tops of the protection support plates (41), protection rods (43) are arranged in the grooves, and protection transparent sheets (44) are connected between the two protection rods (43).
6. A method of operating an automatic code scanning camera focusing device according to claim 3, comprising the steps of:
step one: when the lens body (22) is used and needs focusing, the lifting motor (34) is started through electric connection, the lifting motor (34) moves upwards to push the two transverse supporting plates (33) to two sides, and the movement of the transverse supporting plates (33) drives the two focal length adjusting plates (31) to move upwards;
step two: the ring (24) moves upwards under the drive of the focal length adjusting plate (31), and the auxiliary block (23) fixed on the side wall of the lens body (22) is triggered to move to drive the lens body (22) to move so as to finish primary focusing;
step three: a steering connecting plate (27) is arranged below the lens body (22), tilting assemblies are arranged on two sides of the steering connecting plate (27), and under the power state, the magnetic buckle (210) tilts towards the electromagnetic coil (26) to finish zooming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210947181.3A CN115361498B (en) | 2022-08-09 | 2022-08-09 | Automatic focusing device of code scanning camera and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210947181.3A CN115361498B (en) | 2022-08-09 | 2022-08-09 | Automatic focusing device of code scanning camera and working method thereof |
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| Publication Number | Publication Date |
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| CN115361498A CN115361498A (en) | 2022-11-18 |
| CN115361498B true CN115361498B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210947181.3A Active CN115361498B (en) | 2022-08-09 | 2022-08-09 | Automatic focusing device of code scanning camera and working method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201116960Y (en) * | 2007-11-14 | 2008-09-17 | 比亚迪股份有限公司 | Camera lens die set capable of automatic focusing |
| CN201266269Y (en) * | 2008-08-26 | 2009-07-01 | 比亚迪股份有限公司 | Focusing equipment for pick-up head |
| KR101072404B1 (en) * | 2010-07-22 | 2011-10-11 | 넥스타테크놀로지 주식회사 | Yoke-free automatic focus control device for a camera |
| KR20130015666A (en) * | 2011-08-04 | 2013-02-14 | 마이크로엑츄에이터(주) | Auto focusing apparatus for micro camera module |
| CN204362173U (en) * | 2015-02-06 | 2015-05-27 | 北京经纬恒润科技有限公司 | A kind of vehicle-mounted camera of focus adjustable |
| CN207744004U (en) * | 2018-01-26 | 2018-08-17 | 东莞市全视光电科技有限公司 | A kind of Mobile phone automatic focusing camera head |
| CN112596190A (en) * | 2020-12-16 | 2021-04-02 | 广景视睿科技（深圳）有限公司 | Lens focusing assembly and projector |
-
2022
- 2022-08-09 CN CN202210947181.3A patent/CN115361498B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201116960Y (en) * | 2007-11-14 | 2008-09-17 | 比亚迪股份有限公司 | Camera lens die set capable of automatic focusing |
| CN201266269Y (en) * | 2008-08-26 | 2009-07-01 | 比亚迪股份有限公司 | Focusing equipment for pick-up head |
| KR101072404B1 (en) * | 2010-07-22 | 2011-10-11 | 넥스타테크놀로지 주식회사 | Yoke-free automatic focus control device for a camera |
| KR20130015666A (en) * | 2011-08-04 | 2013-02-14 | 마이크로엑츄에이터(주) | Auto focusing apparatus for micro camera module |
| CN204362173U (en) * | 2015-02-06 | 2015-05-27 | 北京经纬恒润科技有限公司 | A kind of vehicle-mounted camera of focus adjustable |
| CN207744004U (en) * | 2018-01-26 | 2018-08-17 | 东莞市全视光电科技有限公司 | A kind of Mobile phone automatic focusing camera head |
| CN112596190A (en) * | 2020-12-16 | 2021-04-02 | 广景视睿科技（深圳）有限公司 | Lens focusing assembly and projector |
Non-Patent Citations (1)
| Title |
|---|
| 套筒滑动式调焦机构综合力学性能分析;申军立等;机电产品开发与创新(06);全文 * |
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