CN220671719U - Code scanner lens structure and code scanner - Google Patents
Code scanner lens structure and code scanner Download PDFInfo
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- CN220671719U CN220671719U CN202322274277.0U CN202322274277U CN220671719U CN 220671719 U CN220671719 U CN 220671719U CN 202322274277 U CN202322274277 U CN 202322274277U CN 220671719 U CN220671719 U CN 220671719U
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- lens
- barrel
- code scanner
- liquid
- ring
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- 239000007788 liquid Substances 0.000 claims abstract description 59
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 239000004033 plastic Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 125000006850 spacer group Chemical group 0.000 description 14
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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Abstract
The utility model relates to a code scanner lens structure and a code scanner, comprising a lens barrel, a lens component and a liquid lens component; the lens barrel is of a cylindrical structure; the lens component comprises a first lens, a second lens and a third lens which are sequentially and coaxially arranged in the lens barrel; the liquid lens assembly comprises a liquid lens and a flat cable, the liquid lens is coaxially arranged in the lens barrel and is positioned at one side of the first lens far away from the second lens, one end of the flat cable is connected with the liquid lens, and the other end of the flat cable penetrates out of the lens barrel; the optical path formed by three lenses of the lens component of the lens structure can enable the depth of field F value of the lens structure to be larger, the liquid lens component can realize automatic focusing and focusing functions, and the lens component is matched with the lens component, so that the lens structure can have larger F value and depth of field value under the condition of smaller volume, has a zooming function, has high universality and can reduce the use cost of the lens; the whole code scanner lens structure has the advantages of simple structure, convenient installation and maintenance and suitability for practicality.
Description
Technical Field
The utility model relates to the technical field of code scanners, in particular to a lens structure of a code scanner and the code scanner.
Background
With the continuous development of mobile payment and code scanning identification technology, the code scanner is more and more widely applied.
The code scanner generally comprises a lens component for determining a view field and a depth of field of view and shooting, but in the existing code scanner product, the lens component inside the code scanner generally adopts a lens, so that the problem that the F value (aperture value) and the depth of field of the lens are small is easily caused, the lens is limited in shape selection when the code scanner product is designed, the lens structure with smaller whole size can meet the requirement of product assembly, but the F value and the depth of field of the lens and other optical parameters cannot meet the requirement, and the volume cannot meet the requirement of assembly when the optical performance of the lens can meet the requirement of the product.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to solve the problems that in the code scanner product in the prior art, the lens component inside the code scanner product generally adopts one lens, the F value (aperture value) and the depth of field of the lens are small, the lens is limited in shape selection when the code scanner product is designed, the lens structure with smaller whole volume can meet the requirement of product assembly, but the F value, the depth of field and other optical parameters of the lens cannot meet the requirement, and the volume cannot meet the requirement of assembly when the optical performance of the lens can meet the requirement of the product.
In order to solve the technical problems, the utility model provides a code scanner lens structure, which comprises,
a lens barrel;
the lens assembly comprises a first lens, a second lens and a third lens which are sequentially and coaxially arranged in the lens barrel;
the liquid lens assembly comprises a liquid lens and a flat cable, the liquid lens is coaxially arranged in the lens barrel and is positioned at one side of the first lens far away from the second lens, one end of the flat cable is connected with the liquid lens, and the other end of the flat cable penetrates out of the lens barrel.
In one embodiment of the utility model, the lens barrel comprises a barrel body and a compression ring, wherein the barrel body is of a barrel-shaped structure with two open ends, an external thread is arranged at one end of the barrel body, the compression ring is of an annular structure, an internal thread matched with the external thread is arranged on the compression ring, and the compression ring is screwed with the barrel body through the internal thread to form the lens barrel.
In one embodiment of the utility model, the inner hole of the cylinder comprises a straight hole section and a step hole section which are communicated with each other, the step hole section is positioned at one side, close to the cylinder, provided with external threads, the liquid lens is coaxially arranged in the straight hole section, and the first lens, the second lens and the third lens are coaxially arranged in the step hole section.
In one embodiment of the utility model, the first lens, the second lens and the third lens are sequentially arranged at intervals, a first space ring is coaxially arranged between the first lens and the second lens, a second space ring is coaxially arranged between the second lens and the third lens, and when the press ring is screwed on the cylinder, the press ring presses the third lens.
In one embodiment of the utility model, a pressing ring is coaxially arranged in the straight hole section, and the pressing ring presses the liquid lens on a step surface formed between the straight hole section and the cylinder body.
In one embodiment of the present utility model, the pressing ring is made of plastic material.
In one embodiment of the utility model, an aperture stop is provided between the liquid lens and the step surface.
In one embodiment of the present utility model, the first spacer ring, the second spacer ring, the light blocking ring and the pressing ring are all annular structures.
In one embodiment of the utility model, a wire outlet groove communicated with the inside of the lens barrel is formed in the side face of the lens barrel, and the wire outlet extends out of the lens barrel from the wire outlet groove.
A code scanner comprising a code scanner lens structure as claimed in any one of the preceding claims.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
the utility model relates to a code scanner lens structure and a code scanner, which comprises a lens barrel, a lens component and a liquid lens component, wherein the lens barrel is of a cylindrical structure; the lens component comprises a first lens, a second lens and a third lens which are sequentially and coaxially arranged in the lens barrel; the liquid lens assembly comprises a liquid lens and a flat cable, the liquid lens is coaxially arranged in the lens barrel and is positioned at one side of the first lens far away from the second lens, one end of the flat cable is connected with the liquid lens, and the other end of the flat cable penetrates out of the lens barrel; according to the code scanner lens structure, the optical path formed by three lenses of the lens component can enable the depth of field F value of the lens structure to be larger than that of the existing miniature lens in the market, the liquid lens component can achieve automatic focusing and focusing functions, and the lens component is matched with the lens component, so that the lens structure can have larger F value and depth of field value under the condition of smaller volume, has a zooming function, has high universality and can reduce the use cost of the lens; the whole code scanner lens structure has the advantages of simple structure, convenient installation and maintenance and suitability for practicality.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
FIG. 1 is a perspective view of a lens structure of a code scanner according to a preferred embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a lens structure of a code scanner according to a preferred embodiment of the present utility model;
FIG. 3 is an exploded view of the lens structure of the code scanner of the preferred embodiment of the present utility model;
fig. 4 is a schematic structural view of a barrel of a lens structure of a code scanner according to a preferred embodiment of the present utility model.
Description of the specification reference numerals: 1. a lens barrel; 11. a cylinder; 12. a compression ring; 13. a wire outlet slot; 2. a lens assembly; 21. a first lens; 22. a second lens; 23. a third lens; 24. a first spacer; 25. a second spacer ring; 3. a liquid lens assembly; 31. a liquid lens; 32. a flat cable; 4. a pressing ring; 5. stop ring.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Example 1
Referring to fig. 1-4, a code scanner lens structure of the present utility model includes,
a lens barrel 1;
a lens assembly 2, the lens assembly 2 including a first lens 21, a second lens 22 and a third lens 23 coaxially disposed in the lens barrel 1 in order;
the liquid lens assembly 3, the liquid lens assembly 3 includes a liquid lens 31 and a flat cable 32, the liquid lens 31 is coaxially disposed in the lens barrel 1 and is located at one side of the first lens 21 far away from the second lens 22, one end of the flat cable 32 is connected with the liquid lens 31, and the other end of the flat cable 32 penetrates out of the lens barrel 1.
According to the code scanner lens structure, the lens component 2 and the liquid lens component 3 are coaxially arranged in the lens barrel 1, wherein the lens component 2 is provided with the first lens 21, the second lens 22 and the third lens 23 coaxially, and a certain distance is kept between the three lenses, so that a formed light path can enable the depth of field F value of the lens structure to be larger than that of a miniature lens existing in the market, and clear imaging can be realized by randomly adjusting positions within a range of plus or minus 100mm of working distance of the lens when an object is shot; the liquid lens assembly 3 includes a liquid lens 31 coaxially disposed with the three lenses, and the focal length of the liquid lens 31 can be changed when the applied voltage is turned on, so that the auto-focusing and focusing functions can be realized, and the liquid lens 31 is a common transparent lens when the applied voltage is not turned on, so that the light path of the whole lens structure is not affected. The liquid lens component 3 and the lens component 2 are matched with each other, so that the lens structure can have a larger F value and depth of field value under the condition of smaller volume, has a zooming function, has high universality and can reduce the use cost of the lens.
Referring to fig. 2 and 3, further, the lens barrel 1 includes a barrel 11 and a compression ring 12, the barrel 11 is a cylindrical structure with two open ends, one end of the barrel 11 is provided with external threads, the compression ring 12 is a ring structure, the compression ring 12 is provided with internal threads matched with the external threads, and the compression ring 12 is screwed with the barrel 11 through the internal threads to form the lens barrel 1. Specifically, the lens assembly 2 is disposed in the stepped hole section, and when the press ring 12 is screwed down, the press ring 12 will press against the third lens 23, so as to fix the entire lens assembly 2; it is conceivable that the fixing manner of the pressing ring 12 makes the installation, disassembly and maintenance of the whole lens assembly 2 more convenient, and can improve the working efficiency of operators.
Further, the inner hole of the barrel 11 includes a straight hole section and a stepped hole section which are mutually communicated, the stepped hole section is located at a side, close to the barrel 11, where the external thread is provided, the liquid lens 31 is coaxially disposed in the straight hole section, and the first lens 21, the second lens 22 and the third lens 23 are coaxially disposed in the stepped hole section. Specifically, the stepped hole sections are in a multi-stage stepped shape, and the stepped sections of each stage correspond to lenses and spacer rings (namely, the first spacer ring 24 and the second spacer ring 25) with different sizes respectively, so that good limiting and fixing effects can be achieved, and the structural stability of the whole lens assembly 2 is ensured, and meanwhile, the lens and the spacer rings can be conveniently installed by workers. The inside diameter of straight hole district section and the external diameter phase-match of liquid lens 31, cooperation clamping ring 4 can realize the quick installation and the dismantlement to liquid lens 31, convenient and practical.
Further, the first lens 21, the second lens 22 and the third lens 23 are sequentially arranged at intervals, a first spacer 24 is coaxially arranged between the first lens 21 and the second lens 22, a second spacer 25 is coaxially arranged between the second lens 22 and the third lens 23, and when the press ring 12 is screwed on the cylinder 11, the press ring 12 presses the third lens 23. In particular, the first spacer 24 and the second spacer 25 serve to maintain a certain spacing of the individual lenses of the lens assembly 2 and to maintain a relatively fixed and stable configuration of the entire lens assembly 2.
Further, a pressing ring 4 is coaxially disposed in the straight hole section, and the pressing ring 4 presses the liquid lens 31 against a stepped surface formed between the straight hole section and the cylinder 11.
Further, the pressing ring 4 is made of plastic. Specifically, the liquid lens 31 is fixed in the cylinder 11 through the pressing ring 4, and the fixing structure can facilitate the installation and maintenance of the liquid lens 31, thereby providing convenience for staff; meanwhile, the pressing ring 4 is made of soft and insulating materials such as plastic, so that the situation that the pressing ring 4 extrudes the liquid lens 31 to cause damage to the liquid lens during installation and meanwhile the liquid lens is contacted with the flat cable 32 to cause short circuit can be avoided.
Further, an aperture stop 5 is provided between the liquid lens 31 and the step surface. Specifically, the liquid lens 31 has liquid therein, and after the liquid lens 31 is powered, the curvature of the liquid therein is changed, so as to change the focal length of the liquid lens 31; the relatively mature liquid lens 31 is a variable focus optical lens utilizing the principle of electrowetting on dielectric (EWOD), and can change the shape of liquid drops in the liquid lens 31 by applying voltage so as to change the focal length of the liquid lens, so that the technology can realize the functions of automatic focusing and zooming without mechanical focusing components. The aperture stop 5 is an annular shading sheet formed by cutting a thin Mylar film, and the size of the optical light transmission caliber of the whole structure can be changed by changing the aperture stop 5 with different specifications so as to meet different use requirements.
Further, the first spacer 24, the second spacer 25, the light blocking ring 5 and the pressing ring 4 are all annular structures.
Referring to fig. 4, further, a wire outlet slot 13 is formed on the side surface of the lens barrel 1 and is communicated with the inside of the lens barrel, and a wire 32 extends out of the lens barrel 1 from the wire outlet slot 13. Specifically, the flat cable 32 is an FPC flexible flat cable, and the flat cable 32 is used for power supply lines and signal transmission data lines of the liquid lens 31.
Example two
The utility model also discloses a code scanner, which comprises the code scanner lens structure as in the first embodiment.
The code scanner lens structure can be applied to various code scanner structures.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (10)
1. The utility model provides a sweep sign indicating number ware camera lens structure which characterized in that: comprising the steps of (a) a step of,
a lens barrel;
the lens assembly comprises a first lens, a second lens and a third lens which are sequentially and coaxially arranged in the lens barrel;
the liquid lens assembly comprises a liquid lens and a flat cable, the liquid lens is coaxially arranged in the lens barrel and is positioned at one side of the first lens far away from the second lens, one end of the flat cable is connected with the liquid lens, and the other end of the flat cable penetrates out of the lens barrel.
2. The code scanner lens structure of claim 1, wherein: the lens cone comprises a barrel body and a compression ring, wherein the barrel body is of a barrel-shaped structure with two open ends, one end of the barrel body is provided with external threads, the compression ring is of an annular structure, the compression ring is provided with internal threads matched with the external threads, and the compression ring is screwed with the barrel body through the internal threads to form the lens cone.
3. The code scanner lens structure of claim 2, wherein: the inner hole of the barrel comprises a straight hole section and a step hole section which are communicated with each other, the step hole section is positioned on one side, close to the outer thread of the barrel, the liquid lens is coaxially arranged in the straight hole section, and the first lens, the second lens and the third lens are coaxially arranged in the step hole section.
4. A code scanner lens structure according to claim 3, wherein: the first lens, the second lens and the third lens are arranged at intervals in sequence, a first space ring is coaxially arranged between the first lens and the second lens, a second space ring is coaxially arranged between the second lens and the third lens, and when the compression ring is screwed on the cylinder body, the compression ring is tightly pressed on the third lens.
5. The code scanner lens structure of claim 4, wherein: and a pressing ring is coaxially arranged in the straight hole section, and the pressing ring tightly presses the liquid lens on a step surface formed between the straight hole section and the cylinder body.
6. The code scanner lens structure of claim 5, wherein: the pressing ring is made of plastic materials.
7. The code scanner lens structure of claim 5, wherein: an aperture stop is arranged between the liquid lens and the step surface.
8. The code scanner lens structure of claim 7, wherein: the first spacing ring, the second spacing ring, the light blocking ring and the pressing ring are all of annular structures.
9. The code scanner lens structure of claim 1, wherein: the side surface of the lens barrel is provided with an outlet slot communicated with the inside of the lens barrel, and the flat cable extends out of the lens barrel from the outlet slot.
10. The utility model provides a sweep sign indicating number ware which characterized in that: a scanner lens structure comprising a scanner as defined in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322274277.0U CN220671719U (en) | 2023-08-23 | 2023-08-23 | Code scanner lens structure and code scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322274277.0U CN220671719U (en) | 2023-08-23 | 2023-08-23 | Code scanner lens structure and code scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220671719U true CN220671719U (en) | 2024-03-26 |
Family
ID=90326912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322274277.0U Active CN220671719U (en) | 2023-08-23 | 2023-08-23 | Code scanner lens structure and code scanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220671719U (en) |
-
2023
- 2023-08-23 CN CN202322274277.0U patent/CN220671719U/en active Active
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