CN210742596U - 1.1 inch target surface f12mm high-definition low-distortion industrial lens - Google Patents
1.1 inch target surface f12mm high-definition low-distortion industrial lens Download PDFInfo
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- CN210742596U CN210742596U CN201921222136.1U CN201921222136U CN210742596U CN 210742596 U CN210742596 U CN 210742596U CN 201921222136 U CN201921222136 U CN 201921222136U CN 210742596 U CN210742596 U CN 210742596U
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Abstract
The utility model provides a 1.1 inch target surface f12mm high-definition low-distortion industrial lens, wherein an optical system of a lens cone sequentially comprises a front group lens A and a rear group lens B along the incident direction of light from left to right; the front group of lenses A consists of a positive crescent lens A1, a positive crescent lens A2, a plano-concave negative lens A3, a bonding group formed by closely connecting a biconcave lens A4 and a biconvex lens A5 which are sequentially arranged from left to right along incident light, and a biconvex lens A6; the rear group lens B consists of a bonding group formed by tightly connecting a double convex lens B1 and a double concave lens B2, a bonding group formed by tightly connecting a double convex lens B3 and a flat concave negative lens B4, and a double convex lens B5 which are sequentially arranged from left to right along incident light; be provided with diaphragm C between front group lens A and the rear group lens, the utility model relates to a 1.1 inch target surface f12mm high definition low distortion industrial camera lens, rear group lens B adopt half group's portable focusing mode, and the stroke is short, and simple structure resolution ratio can reach more than 1000 ten thousand.
Description
Technical Field
The utility model relates to a 1.1 inch target surface f12mm high definition low distortion industrial camera lens.
Background
The current industrial lens has a plurality of target surface sizes, the pixel of the lens with 1.1 inch is generally less than one thousand, the cost is high, and the structure is complex.
Disclosure of Invention
The utility model discloses improve above-mentioned problem, promptly the to-be-solved technical problem of the utility model is that current 1.1 inch's camera lens pixel is generally below one thousand, and the cost is higher, and the structure is complicated.
The utility model discloses a concrete implementation scheme is: a1.1 inch target surface f12mm high-definition low-distortion industrial lens, the lens cone optical system comprises a front group lens A and a rear group lens B along the incident direction of light from left to right;
the front group of lenses A consists of a positive crescent-shaped lens A1, a positive crescent-shaped lens A2, a plano-concave negative lens A3, a bonding group formed by closely connecting a biconcave lens A4 and a biconvex lens A5, and a biconvex lens A6 which are sequentially arranged from left to right along incident light;
the rear group lens B consists of a bonding group formed by tightly connecting a double convex lens B1 and a double concave lens B2, a bonding group formed by tightly connecting a double convex lens B3 and a flat concave negative lens B4, and a double convex lens B5 which are sequentially arranged from left to right along incident light;
a diaphragm C is arranged between the front group of lenses A and the rear group of lenses.
Further, the air distance between the orthodontic lens A1 and the orthodontic lens A2 is 2.12 mm; the air distance between the positive crescent lens A2 and the plano-concave negative lens A3 is 3.5 mm; the air distance between the plano-concave negative lens A3 and the biconcave lens A4 is 4.82 mm; the air distance between the biconvex lens a5 and the biconvex lens a6 was 1.85 mm; the air distance between the biconvex lens A6 and the diaphragm C is 6.04 mm; the air distance between the biconvex lens B1 and the diaphragm C is 6.71 mm; the air distance between the biconcave lens B and the biconvex lens B3 was 0.66 mm, and the air distance between the plano-concave negative lens B4 and the biconvex lens B5 was 3.74 mm.
Further, the lens further comprises a lens component fixed outside the optical system, the lens component comprises a main lens barrel, a front lens barrel and a rear lens barrel are sequentially arranged in the inner cavity of the main lens barrel along the light incidence direction, the inner surface of the front lens barrel is provided with multiple stages of step surfaces for limiting each lens of the front lens A, a bonding group formed by tightly connecting a biconvex lens B1 and a biconcave lens B2, a bonding group formed by tightly connecting a biconvex lens B3 and a plano-concave negative lens B4, a biconvex lens B5 and a rear pressing ring are sequentially arranged in the rear lens barrel along the light incidence direction, the diaphragm C is fixed in the diaphragm sleeve through a diaphragm cone end fastening screw, the diaphragm sleeve is positioned in the main lens barrel and is in threaded connection with the front lens barrel, the diaphragm sleeve is connected with a diaphragm adjusting ring sleeved outside the main lens barrel through a diaphragm guide screw, and the rear end of the main lens barrel is fixedly connected with a connecting seat, the connecting seat is fixed on the main lens cone through a conical end set screw penetrating through the surface of the connecting seat and inserted into the main lens cone, and the diaphragm adjusting ring is limited between the connecting seat and the convex part on the periphery of the main lens cone.
Furthermore, a focusing rotating wheel is connected between the main lens barrel and the rear lens barrel in a threaded manner, the thread direction between the focusing rotating wheel and the main lens barrel is opposite to the thread direction between the focusing rotating wheel and the rear lens barrel, the focusing rotating wheel is connected with the focusing ring through a set screw at the conical end of the focusing ring, a main lens barrel locking nail which is in threaded fit and used for tightly propping up the focusing rotating wheel is arranged outside the main lens barrel, and a main lens barrel limiting nail which limits the moving distance of the rear lens barrel is also arranged in the main lens barrel.
Furthermore, the front end of the front lens cone is horn-shaped, and space rings which are positioned between adjacent lenses and ensure the space between the lenses are arranged in the front lens cone and the rear lens cone.
Furthermore, a front pressing ring, a positive crescent lens A1, an A1A2 space ring, a positive crescent lens A2, a plano-concave negative lens A3, a glue combination of a biconcave lens A4 and a biconvex lens A5 which are closely connected, an A5A6 space ring and a biconvex lens A6 are sequentially arranged in the front group lens barrel along the light incidence direction, and the inner surfaces of the A1A2 space ring and the A5A6 space ring are conical surfaces and the inner diameters of the space ring are gradually reduced from the incidence direction to the lens direction.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a 1.1 inch target surface f12mm high definition low distortion industrial camera lens, back group lens B adopt half portable focusing mode of group, and the stroke is short, and simple structure resolution ratio can reach more than 1000 ten thousand.
Drawings
Fig. 1 is the schematic diagram of the whole focusing light path of the present invention.
Fig. 2 is a general view of the lens structure of the present invention.
Fig. 3 is an MTF graph.
Fig. 4 distortion curve.
1. A front pressing ring; 2. a positive crescent type lens a 1; 3. a1a2 space ring; 4. a positive crescent type lens a 2; 5. a plano-concave negative lens a 3; 6. a biconcave lens a 4; 7. a lenticular lens a 5; 8. A5a6 space ring; 9. a lenticular lens a 6; 10. diaphragm guide pins; 11. a diaphragm sleeve; 12. a set screw is fastened at the conical end of the connecting seat; 13. a connecting seat; 14. B4B5 space ring; 15. a rear pressing ring; 16. a lenticular lens B5; 17. a plano-concave negative lens B4; 18. a lenticular lens B3; 19. a biconcave lens B2; 20. a lenticular lens B1; 21. a rear group of lens barrels; 22. a main barrel; 23. a main lens barrel limit pin 24 and a diaphragm; 25. a diaphragm cone end fastening screw; 26. a diaphragm adjusting ring locking nail; 27. a diaphragm adjusting ring; 28. diaphragm guide pins; 29. a main lens barrel locking nail; 30. a focusing runner; 31. a focus ring; 32. a set screw is fastened at the conical end of the focusing ring; 33. a front group lens barrel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, 3 and 4, a 1.1 inch target surface f12mm high definition low distortion industrial lens, the tube optical system comprises a front group of lenses a and a rear group of lenses B in sequence along the incident direction of light from left to right;
the front group of lenses A consists of a positive crescent-shaped lens A1, a positive crescent-shaped lens A2, a plano-concave negative lens A3, a bonding group formed by closely connecting a biconcave lens A4 and a biconvex lens A5, and a biconvex lens A6 which are sequentially arranged from left to right along incident light;
the rear group lens B consists of a bonding group formed by tightly connecting a double convex lens B1 and a double concave lens B2, a bonding group formed by tightly connecting a double convex lens B3 and a flat concave negative lens B4, and a double convex lens B5 which are sequentially arranged from left to right along incident light;
a diaphragm C is arranged between the front group of lenses A and the rear group of lenses.
In this embodiment, the air distance between the positive meniscus lens a1 and the positive meniscus lens a2 is 2.12 mm; the air distance between the positive crescent lens A2 and the plano-concave negative lens A3 is 3.5 mm; the air distance between the plano-concave negative lens A3 and the biconcave lens A4 is 4.82 mm; the air distance between the biconvex lens a5 and the biconvex lens a6 was 1.85 mm; the air distance between the biconvex lens A6 and the diaphragm C is 6.04 mm; the air distance between the biconvex lens B1 and the diaphragm C is 6.71 mm; the air distance between the biconcave lens B and the biconvex lens B3 was 0.66 mm, and the air distance between the plano-concave negative lens B4 and the biconvex lens B5 was 3.74 mm.
The optical system can realize the following technical indexes as follows:
as shown in fig. 3, it can be seen that 150p/mm >0.3, the line descending trend is slow, the center imaging is best, the edge imaging is clear, and the resolution of the lens can reach 1200 ten thousand pixels. As can be seen from FIG. 4, the distortion is less than or equal to 0.1%, and the distortion and deformation degree of the edge of the lens are low.
As shown in fig. 2, in the second embodiment, the lens further includes a lens component fixed outside the optical system, the lens component includes a main barrel, a front lens barrel and a rear lens barrel are sequentially arranged in an inner cavity of the main barrel along a light incidence direction, an inner surface of the front lens barrel has multiple stages for limiting each lens of the front lens group a, a glue group formed by tightly connecting a double convex lens B1 and a double concave lens B2, a glue group formed by tightly connecting a double convex lens B3 and a flat concave negative lens B4, a double convex lens B5 and a rear pressing ring are sequentially arranged in the rear lens barrel along the light incidence direction, the diaphragm C is fixed in a diaphragm sleeve through a diaphragm cone end fastening screw, the diaphragm sleeve is located in the main barrel and is in threaded connection with the front lens barrel, the diaphragm sleeve is further connected with a diaphragm adjusting ring sleeved outside the main barrel through a diaphragm guide pin, a rear end of the main barrel is fixedly connected with a connecting seat, the connecting seat is fixed on the main lens cone through a conical end set screw penetrating through the surface of the connecting seat and inserted into the main lens cone, and the diaphragm adjusting ring is limited between the connecting seat and the convex part on the periphery of the main lens cone.
In this embodiment, a focusing rotating wheel is connected between the main lens barrel and the rear lens barrel in a threaded manner, the thread direction between the focusing rotating wheel and the main lens barrel is opposite to the thread direction between the focusing rotating wheel and the rear lens barrel, the focusing rotating wheel is connected with the focusing ring through a set screw at the conical end of the focusing ring, a main lens barrel locking nail in threaded fit for tightly pushing the focusing rotating wheel is arranged outside the main lens barrel, and a main lens barrel limiting nail for limiting the movement distance of the rear lens barrel is further arranged in the main lens barrel.
In this embodiment, the front end of the front lens barrel is in a horn shape, and space rings are provided in the front lens barrel and the rear lens barrel to ensure the space between the lenses.
In this embodiment, a front pressing ring, a positive crescent lens A1, an A1a2 space ring, a positive crescent lens a2, a plano-concave negative lens A3, a glue combination of a biconcave lens a4 and a biconvex lens A5, an A5a6 space ring, and a biconvex lens a6 are sequentially arranged in the front group lens barrel along the light incidence direction, and the inner surfaces of the A1a2 space ring and the A5a6 space ring are conical surfaces and the inner diameters are gradually reduced from the incidence direction to the lens direction.
The front group barrel 33 is designed to house a positive meniscus lens a12, a positive meniscus lens a24, a plano-concave negative lens a35, a biconcave lens a46, a biconvex lens a5, and a biconvex lens a 69. According to the light path diagram, the front group lens barrel 33 is designed to have a bell mouth shape, so that all light rays can be emitted and finally imaged. The four positive crescent lenses A2, the plano-concave negative lens A3, the biconcave lens A4 and the biconvex lens A5 are supported without spacer rings, so that the air distance is stable as long as the thickness of the lenses is accurate. The taper of the A5A6 spacer 8 is relatively large, so that some light can be blocked and the image can be clearly formed. The front group lens barrel 33 contains six lenses, and the front pressing ring 1 is designed to stabilize the six lenses and ensure certain coaxiality.
The rear group lens B consists of a bonding group formed by tightly connecting a double convex lens B1 and a double concave lens B2, a bonding group formed by tightly connecting a double convex lens B3 and a flat concave negative lens B4, and a double convex lens B5 which are sequentially arranged from left to right along incident light;
a diaphragm C is arranged between the front group of lenses A and the rear group of lenses.
The rear group barrel 21 is designed to house a double convex lens B120, a double concave lens B219, a double convex lens B318, a plano-concave negative lens B417, and a double convex lens B516. The biconcave lens B219 and the biconvex lens B318 bear against each other, so that the error of the air distance can be reduced, the B4B5 spacer ring 14 is designed to ensure the air distance between the plano-concave negative lens B417 and the biconvex lens B516, and the rear pressing ring 15 is matched with the rear lens group barrel 21 to ensure the assembly stability and the light permeability of 5 lenses of the rear lens group barrel.
As the camera is a C interface, a connecting seat 13 of the C/CS is also designed. The connecting base 13 is locked on the main lens cone 22 by three connecting base conical end set screws 12, and can also play a role in fixing the diaphragm adjusting ring 27. The inner wall of connecting seat 13 mutually supports with the outer wall of rear group lens barrel 21, and such design can make all mechanical parts assemble the back again and carry out the lens assembly, has promoted the assembly efficiency of camera lens widely.
Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.
Also, above-mentioned the utility model discloses if disclose or related to mutually fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.
The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (6)
1. A1.1 inch target surface f12mm high-definition low-distortion industrial lens is characterized in that a lens barrel optical system sequentially comprises a front group of lenses A and a rear group of lenses B along the incident direction of light rays from left to right;
the front group of lenses A consists of a positive crescent-shaped lens A1, a positive crescent-shaped lens A2, a plano-concave negative lens A3, a bonding group formed by closely connecting a biconcave lens A4 and a biconvex lens A5, and a biconvex lens A6 which are sequentially arranged from left to right along incident light;
the rear group lens B consists of a bonding group formed by tightly connecting a double convex lens B1 and a double concave lens B2, a bonding group formed by tightly connecting a double convex lens B3 and a flat concave negative lens B4, and a double convex lens B5 which are sequentially arranged from left to right along incident light;
a diaphragm C is arranged between the front group of lenses A and the rear group of lenses.
2. The 1.1-inch target surface f12mm high definition low distortion industrial lens of claim 1, wherein the air distance between the positive crescent A1 and the positive crescent A2 is 2.12 mm; the air distance between the positive crescent lens A2 and the plano-concave negative lens A3 is 3.5 mm; the air distance between the plano-concave negative lens A3 and the biconcave lens A4 is 4.82 mm; the air distance between the biconvex lens a5 and the biconvex lens a6 was 1.85 mm; the air distance between the biconvex lens A6 and the diaphragm C is 6.04 mm; the air distance between the biconvex lens B1 and the diaphragm C is 6.71 mm; the air distance between the biconcave lens B and the biconvex lens B3 was 0.66 mm, and the air distance between the plano-concave negative lens B4 and the biconvex lens B5 was 3.74 mm.
3. The 1.1-inch target surface f12mm high definition low distortion industrial lens according to claim 1 or 2, further comprising a lens assembly fixed outside the optical system, wherein the lens assembly comprises a main barrel, the inner cavity of the main barrel is sequentially provided with a front lens barrel and a rear lens barrel along the light incidence direction, the inner surface of the front lens barrel has multiple stages of step surfaces for limiting each lens of the front lens group a, the rear lens barrel is sequentially provided with a bonding group of a biconvex lens B1 and a biconcave lens B2, a bonding group of a biconvex lens B3 and a biconcave negative lens B4, a biconvex lens B5 and a rear pressing ring along the light incidence direction, the diaphragm C is fixed in a diaphragm sleeve by a cone diaphragm end fastening screw, the diaphragm sleeve is located in the main barrel and is in threaded connection with the front lens barrel, the diaphragm sleeve is further connected with an adjusting ring sleeved outside the main barrel by a diaphragm guide screw, the rear end of the main lens cone is fixedly connected with a connecting seat, the connecting seat is fixed on the main lens cone through a conical end set screw penetrating through the surface of the connecting seat and inserted into the main lens cone, and the diaphragm adjusting ring is limited between the connecting seat and the convex part at the periphery of the main lens cone.
4. The 1.1-inch target surface f12mm high definition low distortion industrial lens as claimed in claim 3, wherein a focusing wheel is screwed between the main barrel and the rear lens barrel, the direction of the screw thread between the focusing wheel and the main barrel is opposite to the direction of the screw thread between the focusing wheel and the rear lens barrel, the focusing wheel is connected with the focusing ring through a conical end set screw of the focusing ring, the main barrel has a main barrel locking pin screwed to tightly press the focusing wheel, and the main barrel further has a main barrel limit pin inside to limit the moving distance of the rear lens barrel.
5. The 1.1-inch target surface f12mm high definition low distortion industrial lens as claimed in claim 3, wherein the front end of the front lens barrel is horn-shaped, and the front and rear lens barrels have a spacer ring between adjacent lenses to ensure the spacing between the lenses.
6. The 1.1-inch target surface f12mm high-definition low-distortion industrial lens as claimed in claim 3, wherein the front lens barrel is sequentially provided with a front pressing ring, a positive crescent A1, an A1A2 spacer, a positive crescent A2, a plano-concave negative A3, a cemented group of a biconcave A4 and a biconvex A5, an A5A6 spacer and a biconvex A6 along the light incidence direction, and the inner surfaces of the A1A2 spacer and the A5A6 spacer are conical surfaces and gradually decrease in inner diameter from the incidence direction to the lens direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921222136.1U CN210742596U (en) | 2019-07-31 | 2019-07-31 | 1.1 inch target surface f12mm high-definition low-distortion industrial lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921222136.1U CN210742596U (en) | 2019-07-31 | 2019-07-31 | 1.1 inch target surface f12mm high-definition low-distortion industrial lens |
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| Publication Number | Publication Date |
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| CN210742596U true CN210742596U (en) | 2020-06-12 |
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| CN201921222136.1U Active CN210742596U (en) | 2019-07-31 | 2019-07-31 | 1.1 inch target surface f12mm high-definition low-distortion industrial lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412745A (en) * | 2019-07-31 | 2019-11-05 | 福建福光天瞳光学有限公司 | A kind of low industrial camera lens and its manufacturing method of distorting of 1.1 inches of target surface f12mm high definitions |
-
2019
- 2019-07-31 CN CN201921222136.1U patent/CN210742596U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412745A (en) * | 2019-07-31 | 2019-11-05 | 福建福光天瞳光学有限公司 | A kind of low industrial camera lens and its manufacturing method of distorting of 1.1 inches of target surface f12mm high definitions |
| CN110412745B (en) * | 2019-07-31 | 2023-09-19 | 福建福光天瞳光学有限公司 | 1.1-inch target surface f12mm high-definition low-distortion industrial lens and manufacturing method thereof |
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