CN217034385U - Optical lens with high vibration resistance and use requirement - Google Patents
Optical lens with high vibration resistance and use requirement Download PDFInfo
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- CN217034385U CN217034385U CN202123278476.6U CN202123278476U CN217034385U CN 217034385 U CN217034385 U CN 217034385U CN 202123278476 U CN202123278476 U CN 202123278476U CN 217034385 U CN217034385 U CN 217034385U
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Abstract
The utility model relates to an optical lens capable of resisting high-vibration use requirements, wherein a front lens group C is arranged in a front group tube part A, and the front lens group C is respectively formed by a first adhesive group formed by closely connecting a biconvex lens C1, a negative crescent lens C2, a positive crescent lens C3, a biconvex lens C4 and a biconcave lens C5 from left to right along the light incidence direction; the focusing part B is internally provided with a focusing lens group D, and the focusing lens group D is formed by a second adhesive combination formed by closely connecting a double convex lens D1 and a double concave lens D2 from left to right along the incident direction of light; an R-angle pressing ring A2 is arranged on the left end side of the biconvex lens C1, a double-faced right-angle spacer ring A3 is arranged between the biconvex lens C1 and the negative crescent lens C2, an R-angle pressing ring A4 is arranged between the negative crescent lens C2 and the positive crescent lens C3, the positive crescent lens C3 is installed on a C4 lens base A5, and an R-angle pressing ring A6 is arranged between the first gluing group and a C4 lens base A5. The structure is simple.
Description
Technical Field
The utility model relates to an optical lens with high vibration resistance and use requirements, and belongs to the technical field of photoelectricity.
Background
The lens has stronger vibration and impact resistance when being used for resisting high vibration, is more suitable for harsh environment conditions (such as off-road loading vehicles, airplanes and the like), and has incomparable advantages in the fields of military affairs, criminal investigation, aerospace and the like. The anti high vibration operation requirement camera lens uses mechanical fastening and mechanical shock attenuation mode, has effectively protected inside lens not damaged by adverse environmental conditions, has effectively improved the stability and the reliability of this type of operation requirement's camera lens, therefore the more ordinary camera lens of system overall structure simplifies, but its harsh operating condition needs mechanical shock attenuation greatly to have improved the design degree of difficulty. In order to reduce the large vibration and impact of the lens when the lens is used, especially for the lens with larger outer diameter, more damping modes are usually needed to be matched for use, which is not only unfavorable for the miniaturization of the lens, but also increases the tolerance burden of the lens, prolongs the debugging period, increases the production cost of the lens, and is unfavorable for the improvement of the production efficiency.
SUMMERY OF THE UTILITY MODEL
In view of the shortcomings of the prior art, the technical problem to be solved by the utility model is to provide an optical lens which is resistant to high vibration and is required to be used.
In order to solve the technical problems, the technical scheme of the utility model is as follows: an optical lens resisting high vibration and requiring use comprises a front group cylinder part A and a focusing part B which are respectively arranged along the incident direction of a light path from left to right, wherein a front lens group C is arranged in the front group cylinder part A, and the front lens group C is respectively formed by a first bonding group formed by closely connecting a double convex lens C1, a negative crescent lens C2, a positive crescent lens C3, a double convex lens C4 and a double concave lens C5 from left to right along the incident direction of light; a focusing lens group D is arranged in the focusing part B, and the focusing lens group D is formed by a second adhesive combination formed by closely connecting a double convex lens D1 and a double concave lens D2 from left to right along the incident direction of light rays; an R-angle pressing ring A2 is arranged on the left end side of the biconvex lens C1, a double-faced right-angle spacer ring A3 is arranged between the biconvex lens C1 and the negative crescent lens C2, an R-angle pressing ring A4 is arranged between the negative crescent lens C2 and the positive crescent lens C3, the positive crescent lens C3 is installed on a C4 lens base A5, and an R-angle pressing ring A6 is arranged between the first gluing group and a C4 lens base A5.
Preferably, the front assembly tube part a comprises a front main tube a1, an R-angle pressing ring a2, a biconvex lens C1, a double-sided right-angle spacer ring A3, a negative crescent lens C2, an R-angle pressing ring a4, a positive crescent lens C3, an R-angle pressing ring a6 and a first glue assembly which are sequentially arranged inside the front main tube a1 from left to right; the focusing part B comprises a focusing mirror seat B1, a focusing cam B2, a focusing cam pressing ring B3, a focusing guide pin B4, a focusing mirror seat B5 and a focusing pressing ring B6; the focusing lens group D is arranged in a focusing lens base B5, a focusing pressing ring B6 is arranged on the right end side of the focusing lens group D, and the focusing lens base B5 is positioned inside the focusing lens base B1.
Preferably, the air space between the biconvex lens C1 and the negative meniscus lens C2 is 2.7mm, the air space between the negative meniscus lens C2 and the positive meniscus lens C3 is 3mm, and the air space between the positive meniscus lens C3 and the first cemented group is 0.57 mm; the front and back focusing distance of a bonding group formed by tightly connecting a double convex lens D1 and a double concave lens D2 in the focusing lens group D is-0.2 mm- +0.3 mm.
Preferably, the C4 lens seat A5 is provided with a circular groove at the contact part with the orthodontic lens C3, and the orthodontic lens C3 is glued on the circular groove.
Compared with the prior art, the utility model has the following beneficial effects: (1) each pressing ring and each spacer ring in the front group cylinder part A adopt an R-angle blank pressing mode, so that the stress area is increased when the lens is compressed, the lens is prevented from being damaged due to concentrated stress under the high-vibration condition, the reliability and the stability of the use of the lens are effectively improved, and the lens is more favorable for bearing the high-vibration condition; (2) according to the lens, the orthodontic lens C3 is arranged on the C4 lens seat A5 and then assembled in the front main barrel A1, so that the lens is prevented from being damaged when being stressed directly, the reliability and stability of the lens are effectively improved, and the lens is more favorable for bearing a high-vibration condition.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a general assembly drawing of an embodiment of the present invention.
FIG. 2 is a schematic diagram of an optical system according to an embodiment of the present invention.
In the figure: a-front group barrel part A, B-focusing part B, C-front lens group C, C1-double convex lens C1, C2-negative crescent lens C2, C3-positive crescent lens C3, C4-double convex lens C4, C5-double concave lens C5, D-focusing lens group D, D1-double convex lens D1, D2-double concave lens D2, a2-R angular pressing ring a2, a 2-double-sided right-angle spacer ring a2, a2-R angular pressing ring a2, a 2-C2 lens base a2, a2-R angular pressing ring a2, a 2-front main barrel a2, B2-focusing lens base B2, B2-focusing cam pressing ring B2, B2-guide pin B2, B2-focusing lens base B2-B2 and B2-focusing cam B2-focusing ring B2.
Detailed Description
The utility model is further explained below with reference to the drawings and the embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1-2, the present embodiment provides an optical lens assembly with high vibration resistance, which includes a front barrel assembly a and a focusing assembly B respectively disposed along an optical path from left to right incident direction, wherein the front barrel assembly a is provided with a front lens assembly C, and the front lens assembly C is composed of a first adhesive assembly formed by closely connecting a biconvex lens C1, a negative crescent lens C2, a positive crescent lens C3, a biconvex lens C4 and a biconcave lens C5 from left to right incident direction along a light incident direction; a focusing lens group D is arranged in the focusing part B, and the focusing lens group D is formed by a second adhesive combination formed by closely connecting a double convex lens D1 and a double concave lens D2 from left to right along the incident direction of light rays; an R-angle pressing ring A2 is arranged at the left end side of the biconvex lens C1, a double-sided right-angle space ring A3 is arranged between the biconvex lens C1 and the negative crescent lens C2, an R-angle pressing ring A4 is arranged between the negative crescent lens C2 and the positive crescent lens C3, the positive crescent lens C3 is installed on a C4 lens seat A5, and an R-angle pressing ring A6 is arranged between the first gluing group and a C4 lens seat A5. The R-angle pressing ring A4 is a single-sided R-angle pressing ring.
In the embodiment of the utility model, the biconvex lens C1, the orthodontic lens C3 and the first gluing group use the R-shaped pressing ring, so that the stress area is increased when the lens is compressed, the lens is prevented from being damaged by stress concentration under a high vibration condition, the reliability and the stability of the lens are effectively improved, and the lens is more favorable for bearing the high vibration condition. The positive crescent lens C3 is made of a relatively low material, the positive crescent lens C3 is firstly and independently installed on the C4 lens seat A5 and then assembled in the front main barrel A1, so that the lens is prevented from being directly stressed, the lens is damaged during high vibration, the use reliability and stability of the lens are effectively improved, and the lens is more favorable for bearing high vibration conditions. The camera lens uses mechanical fastening and mechanical shock attenuation mode, has effectively protected inside lens not damaged by adverse environmental conditions, has effectively improved the stability and the reliability of this kind of operation requirement's camera lens, and the debugging process is consuming time weak point, is favorable to production efficiency's improvement, realizes the miniaturization of camera lens simultaneously.
In the embodiment of the utility model, the front group barrel part A comprises a front main barrel A1, an R-angle pressing ring A2, a biconvex lens C1, a double-sided right-angle spacer ring A3, a negative crescent lens C2, an R-angle pressing ring A4, a positive crescent lens C3, an R-angle pressing ring A6 and a first adhesive group which are sequentially arranged inside the front main barrel A1 from left to right; the focusing part B comprises a focusing mirror seat B1, a focusing cam B2, a focusing cam pressing ring B3, a focusing guide pin B4, a focusing mirror seat B5 and a focusing pressing ring B6; the focusing lens group D is arranged in a focusing lens base B5, a focusing pressing ring B6 is arranged on the right end side of the focusing lens group D, and the focusing lens base B5 is positioned inside the focusing lens base B1.
In the embodiment of the utility model, the air space between the biconvex lens C1 and the negative crescent lens C2 is 2.7mm, the air space between the negative crescent lens C2 and the positive crescent lens C3 is 3mm, and the air space between the positive crescent lens C3 and the first bonding group is 0.57 mm; the front and back focusing distance of a gluing group formed by closely connecting a biconvex lens D1 and a biconcave lens D2 in the focusing lens group D is-0.2 mm to +0.3 mm.
In the embodiment of the utility model, the contact part of the C4 lens base A5 and the orthodontic lens C3 is provided with the annular groove which is used for containing soft colloid materials, the orthodontic lens C3 is glued on the annular groove, the play of the lens caused by high vibration is reduced, the colloid materials increase the shock absorption effect of the lens base, the reliability and the stability of the lens are effectively increased, and the lens is more beneficial to bearing the high vibration condition.
In the embodiment of the present invention, the indexes of the lens implementation are as follows:
focal length: f' =235.7 mm.
The size of the lens covering target surface is as follows: 2/3 inches.
Working wave band: 0.7 μm to 0.95 μm.
The field angle: 1.4 ° × 1.12 °.
Total optical length: 162 mm.
Weight: < 850 g.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (4)
1. An optical lens resisting high vibration requirements for use, characterized in that: the focusing lens comprises a front group cylinder part A and a focusing part B which are respectively arranged along the incident direction from left to right along the light path, wherein a front lens group C is arranged in the front group cylinder part A, and the front lens group C is respectively formed by a first bonding group formed by closely connecting a double convex lens C1, a negative crescent lens C2, a positive crescent lens C3, a double convex lens C4 and a double concave lens C5 from left to right along the incident direction of light rays; the focusing part B is internally provided with a focusing lens group D, and the focusing lens group D is formed by a second adhesive combination formed by closely connecting a double convex lens D1 and a double concave lens D2 from left to right along the incident direction of light; an R-angle pressing ring A2 is arranged on the left end side of the biconvex lens C1, a double-faced right-angle spacer ring A3 is arranged between the biconvex lens C1 and the negative crescent lens C2, an R-angle pressing ring A4 is arranged between the negative crescent lens C2 and the positive crescent lens C3, the positive crescent lens C3 is installed on a C4 lens base A5, and an R-angle pressing ring A6 is arranged between the first gluing group and a C4 lens base A5.
2. The high vibration resistant in-use optical lens of claim 1, wherein: the front group barrel part A comprises a front main barrel A1, an R-angle pressing ring A2, a biconvex lens C1, a double-sided right-angle spacer ring A3, a negative crescent lens C2, an R-angle pressing ring A4, a positive crescent lens C3, an R-angle pressing ring A6 and a first gluing group which are sequentially arranged inside the front main barrel A1 from left to right; the focusing part B comprises a focusing mirror seat B1, a focusing cam B2, a focusing cam pressing ring B3, a focusing guide pin B4, a focusing mirror seat B5 and a focusing pressing ring B6; the focusing lens group D is arranged in a focusing lens base B5, a focusing pressing ring B6 is arranged on the right end side of the focusing lens base D, and the focusing lens base B5 is positioned inside the focusing lens base B1.
3. The high vibration resistant in-use optical lens of claim 1, wherein: the air space between the biconvex lens C1 and the negative crescent lens C2 is 2.7mm, the air space between the negative crescent lens C2 and the positive crescent lens C3 is 3mm, and the air space between the positive crescent lens C3 and the first cemented group is 0.57 mm; the front and back focusing distance of a gluing group formed by closely connecting a biconvex lens D1 and a biconcave lens D2 in the focusing lens group D is-0.2 mm to +0.3 mm.
4. The high vibration resistant in-use optical lens of claim 1, wherein: the contact part of the C4 lens base A5 and the orthodontic lens C3 is provided with a ring groove, and the orthodontic lens C3 is glued on the ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123278476.6U CN217034385U (en) | 2021-12-24 | 2021-12-24 | Optical lens with high vibration resistance and use requirement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123278476.6U CN217034385U (en) | 2021-12-24 | 2021-12-24 | Optical lens with high vibration resistance and use requirement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217034385U true CN217034385U (en) | 2022-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123278476.6U Active CN217034385U (en) | 2021-12-24 | 2021-12-24 | Optical lens with high vibration resistance and use requirement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217034385U (en) |
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2021
- 2021-12-24 CN CN202123278476.6U patent/CN217034385U/en active Active
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