CN219997385U - Cemented lens - Google Patents
Cemented lens Download PDFInfo
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- CN219997385U CN219997385U CN202321557736.XU CN202321557736U CN219997385U CN 219997385 U CN219997385 U CN 219997385U CN 202321557736 U CN202321557736 U CN 202321557736U CN 219997385 U CN219997385 U CN 219997385U
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- lens
- arc surface
- concave
- eccentricity
- meniscus lens
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- 230000005499 meniscus Effects 0.000 claims description 53
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000004026 adhesive bonding Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 11
- 239000000758 substrate Substances 0.000 description 9
- 239000003292 glue Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 230000004075 alteration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
Abstract
The utility model discloses a cemented lens, which comprises a first lens and a second lens, wherein the first lens is provided with a first arc surface and a second arc surface, the second lens is provided with a third arc surface and a fourth arc surface, the curvatures of the second arc surface of the first lens and the third arc surface of the second lens are the same, and the second arc surface and the third arc surface are cemented into a whole. The utility model can form the double-sided reflection eccentric qualified finished product at one time without multiple reworking to achieve the reflection eccentric qualification.
Description
Technical Field
The utility model relates to an optical instrument, in particular to a cemented lens.
Background
In an optical system, the use of the double-cemented lens greatly reduces system aberration, and the cemented decentration of the double-cemented lens is used as an important index for product management and control, and is required to meet the design requirement so as to ensure the imaging quality of the whole product
In the production and processing, the gluing is usually carried out at the end of the procedure, but after the gluing of the prior art products, the detection result of the reflection eccentricity is that the convex reflection eccentricity is qualified, the concave reflection eccentricity is not qualified, the concave reflection eccentricity is qualified, and the convex reflection eccentricity is not qualified.
In view of the foregoing, there is a need for a new cemented lens that achieves acceptable convex decentration and concave decentration of the finished product.
Disclosure of Invention
In order to solve the technical problems, the technical scheme adopted by the utility model is to provide a cemented lens, which comprises a first lens and a second lens, wherein the first lens is provided with a first arc surface and a second arc surface, the second lens is provided with a third arc surface and a fourth arc surface, the curvatures of the second arc surface of the first lens and the third arc surface of the second lens are the same, and the second arc surface and the third arc surface are cemented into a whole.
In the above scheme, the first lens and the second lens are respectively a first meniscus lens and a second meniscus lens, the first arc surface and the second arc surface are respectively a convex surface and a concave surface, and the third arc surface and the fourth arc surface are respectively a convex surface and a concave surface.
In the above scheme, the outer edge of the fourth arc surface is integrally provided with an annular platform, and the platform is perpendicular to the central axis of the second meniscus lens.
In the above scheme, the first lens and the second lens are respectively a biconvex lens and a biconcave lens, the biconvex lens is a positive lens, the first arc surface and the second arc surface are respectively convex surfaces, the biconcave lens is a negative lens, and the third arc surface and the fourth arc surface are respectively concave surfaces.
In the above scheme, the outer edge of the fourth arc surface is integrally provided with an annular platform, and the platform is perpendicular to the central axis of the biconcave lens.
The utility model can form the double-sided reflection eccentric qualified finished product at one time without multiple reworking to achieve the reflection eccentric qualification.
Drawings
FIG. 1 is a schematic illustration of the appearance of an embodiment of the present utility model;
FIG. 2 is a schematic view of a portion of the components of FIG. 1;
FIG. 3 is a schematic view of a portion of the components of FIG. 1;
FIG. 4 is a schematic diagram of another variation of FIG. 3;
FIG. 5 is a schematic view of another embodiment of the present utility model;
FIG. 6 is a schematic view of a portion of the components of FIG. 5;
FIG. 7 is a schematic view of a portion of the components of FIG. 5;
fig. 8 is a schematic diagram of another variation of fig. 7.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The utility model discloses a cemented lens, which can be realized by appropriately improving process parameters by a person skilled in the art based on the content of the present disclosure. It is to be particularly pointed out that all similar substitutes and modifications apparent to those skilled in the art are deemed to be included in the utility model and that the relevant person can make modifications and appropriate alterations and combinations of what is described herein to make and use the technology without departing from the spirit and scope of the utility model.
In the present utility model, unless otherwise indicated, scientific and technical terms used herein have the meanings commonly understood by one of ordinary skill in the art.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the description of the present utility model, the terms "first," "second," and the like are merely used for convenience in describing the various elements and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
The utility model provides a cemented lens, which comprises a first lens and a second lens, wherein the first lens is provided with a first arc surface and a second arc surface, the second lens is provided with a third arc surface and a fourth arc surface, the curvatures of the second arc surface of the first lens and the third arc surface of the second lens are the same, and the second arc surface and the third arc surface are cemented into a whole.
Preferably, the first lens and the second lens are a first meniscus lens and a second meniscus lens, the first arc surface and the second arc surface are convex and concave, respectively, and the third arc surface and the fourth arc surface are convex and concave, respectively. The outer edge of the fourth arc surface is integrally provided with an annular platform, and the platform is perpendicular to the central axis of the second meniscus lens.
Preferably, the first lens and the second lens are respectively a biconvex lens and a biconcave lens, the biconvex lens is a positive lens, the first arc surface and the second arc surface are respectively convex surfaces, the biconcave lens is a negative lens, and the third arc surface and the fourth arc surface are respectively concave surfaces. The outer edge of the fourth arc surface is integrally provided with an annular platform which is perpendicular to the central axis of the biconcave lens.
According to the utility model, as the concave surface and the edge of the lens form a sharp angle, the assembly is not facilitated, and a platform is added on the concave surface, so that the stability in the assembly process is facilitated. In the production process, the gluing is usually carried out as a part of the working procedure, and the finished product is obtained after the final gluing is finished. By the new and improved method and the lens product, the convex reflection eccentricity of the finished product is qualified, and the concave reflection eccentricity is also qualified.
Example 1
As described in fig. 1 to 4, the meniscus lens is cemented
The first meniscus lens 1 is glued with the second meniscus lens 2 with a platform
The first meniscus lens 1 is divided into a first convex surface 3 and a second concave surface 4; the second concave surface 4 has the same R value as the first convex surface 5 of the second meniscus lens 2;
the second meniscus lens 2 is divided into a first convex surface 5 and a second concave surface 6; the R value of the first convex surface 5 is the same as that of the second concave surface 4 of the first meniscus lens 1, and the second concave surface is provided with a platform 7;
the first meniscus lens 1 and the second meniscus lens 2 are glued together, and the second concave surface 4 of the first meniscus lens 1 and the first convex surface 5 of the second meniscus lens 2 are glued together;
the first gluing method is as follows: the first meniscus lens is used as a substrate, the first convex surface is downward, the second concave surface is upward, the first meniscus lens is placed on a gluing instrument, photosensitive glue is dripped on the second concave surface, the first convex surface of the second meniscus lens is downward, and the second concave surface of the first meniscus lens is placed on the second concave surface of the second meniscus lens; and continuously rotating the first meniscus lens, moving the position of the reticle on the imager, and fine-adjusting the second meniscus lens when the reticle offset is too large until the reticle offset is within a qualified range.
After the ultraviolet oven is cured, detecting double-sided eccentricity: taking the first convex surface of the first meniscus lens as a bottom, measuring the eccentricity of the second concave surface of the second meniscus lens, and ensuring that the eccentricity is qualified; and taking the second concave platform of the second meniscus lens as a bottom, and measuring the eccentricity of the first convex surface of the first meniscus lens, wherein the eccentricity is unqualified.
And a gluing method II: the second meniscus lens is used as a substrate, the second concave surface faces downwards, the first convex surface is used as a substrate, the platform is placed on a gluing instrument, photosensitive glue is dripped on the first convex surface, the second concave surface of the first meniscus lens faces downwards, and the platform is placed on the first convex surface of the second meniscus lens; and continuously rotating the second meniscus lens, and when the position of the reticle on the imager is moved and the reticle offset is too large, finely adjusting the first meniscus lens until the reticle offset is within a qualified range.
After the ultraviolet oven is cured, detecting double-sided eccentricity: taking the first convex surface of the first meniscus lens as a bottom, measuring the eccentricity of the second concave surface of the first meniscus lens, and ensuring that the eccentricity is unqualified; and taking a second concave platform of the second meniscus lens as a bottom, and measuring the eccentricity of the first convex surface of the first meniscus lens, wherein the eccentricity is qualified.
And (3) a gluing method:
taking a second concave unprocessed platform product of a second meniscus lens. The first meniscus lens is used as a substrate, the first convex surface is downward, the second concave surface is upward, the first meniscus lens is placed on a gluing instrument, photosensitive glue is dripped on the second concave surface, the first convex surface of the second meniscus lens is downward, and the second concave surface of the first meniscus lens is placed on the second concave surface of the second meniscus lens; and continuously rotating the first meniscus lens, moving the position of the reticle on the imager, and fine-adjusting the second meniscus lens when the reticle offset is too large until the reticle offset is within a qualified range.
After the ultraviolet oven is cured, processing a second concave surface platform of the second meniscus lens, and after the processing is finished, detecting double-sided eccentricity: taking the first convex surface of the first meniscus lens as a bottom, measuring the eccentricity of the second concave surface of the second meniscus lens, and ensuring that the eccentricity is qualified; and taking a second concave platform of the second meniscus lens as a bottom, and measuring the eccentricity of the first convex surface of the first meniscus lens, wherein the eccentricity is qualified.
Example 2
As shown in fig. 1 to 4, the biconvex lens and the biconcave lens are cemented
The biconvex lens 8 is glued with a biconcave lens 9 with a platform
A biconvex lens 8, which is a positive lens, divided into a first convex surface 10 and a second convex surface 11; the second convex surface 11 has the same R value as the first concave surface 12 of the biconcave lens 9;
the biconcave lens 9, which is a negative lens, is divided into a first concave surface 12 and a second concave surface 13; the first concave surface 12 has the same R value as the second convex surface 11 of the lenticular lens 8; the second concave surface 13 is provided with a platform 14;
the second convex surface 11 of the biconvex lens 8 is glued together with the first concave surface 12 of the biconcave lens 9;
the first gluing method is as follows: the biconvex lens is used as a substrate, the first convex surface is downward, the second convex surface is upward, the biconvex lens is placed on a gluing instrument, photosensitive glue is dripped on the second convex surface, the first concave surface of the biconvex lens is downward, and the biconvex lens is placed on the second convex surface of the biconvex lens; and continuously rotating the biconvex lens to enable the reticle on the imager to move, and fine-adjusting the biconcave lens when the reticle moves too much until the reticle movement range is qualified.
After the ultraviolet oven is cured, detecting double-sided eccentricity: taking the first convex surface as the bottom, measuring the eccentricity of the second concave surface, and ensuring that the eccentricity is qualified; and taking the second concave platform as a bottom, measuring the eccentricity of the convex surface, and ensuring that the eccentricity is unqualified.
And a gluing method II: the biconcave lens is used as a substrate, the second concave surface faces downwards, the first concave surface faces upwards, the platform is used as a substrate, the platform is placed on a gluing instrument, photosensitive glue is dripped on the first concave surface, the second convex surface of the biconcave lens faces downwards, and the platform is placed on the first concave surface of the biconcave lens; continuously rotating the biconcave lens to enable the reticle on the imager to move, and fine-adjusting the biconvex lens when the reticle moves too much until the reticle movement range is qualified.
After the ultraviolet oven is cured, detecting double-sided eccentricity: taking the first convex surface as the bottom, measuring the eccentricity of the second concave surface, and judging that the eccentricity is unqualified; and taking the second concave platform as a bottom, measuring the eccentricity of the convex surface, and ensuring that the eccentricity is qualified.
And (3) a gluing method:
taking a biconcave lens unprocessed platform product, wherein the biconcave lens is taken as a substrate, a second concave surface faces downwards, a first concave surface faces upwards, the platform is taken as a substrate, the platform is placed on a gluing instrument, photosensitive glue is dripped on the first concave surface, and the second convex surface of the biconvex lens faces downwards and is placed on the first concave surface of the biconcave lens; continuously rotating the biconcave lens to enable the reticle on the imager to move, and fine-adjusting the biconvex lens when the reticle moves too much until the reticle movement range is qualified.
After the ultraviolet oven is cured, concave surface platform processing is carried out, and after the processing is finished, double-sided eccentricity is detected: taking the first convex surface as the bottom, measuring the eccentricity of the second concave surface, and ensuring that the eccentricity is qualified; and taking the second concave platform as a bottom, measuring the eccentricity of the convex surface, and ensuring that the eccentricity is qualified.
The utility model can form the double-sided reflection eccentric qualified finished product at one time without multiple reworking to achieve the reflection eccentric qualification.
The present utility model is not limited to the above-mentioned preferred embodiments, and any person who can learn about the structural changes made under the teaching of the present utility model can be within the scope of the present utility model if the present utility model has the same or similar technical solutions.
Claims (5)
1. The cemented lens is characterized by comprising a first lens and a second lens, wherein the first lens is provided with a first arc surface and a second arc surface, the second lens is provided with a third arc surface and a fourth arc surface, the curvatures of the second arc surface of the first lens and the third arc surface of the second lens are the same, and the second arc surface and the third arc surface are cemented into a whole.
2. The cemented lens of claim 1 wherein the first lens and the second lens are a first meniscus lens and a second meniscus lens, respectively, the first arc surface and the second arc surface are convex and concave, respectively, and the third arc surface and the fourth arc surface are convex and concave, respectively.
3. The cemented lens of claim 2 wherein the outer edge of the fourth arcuate surface is integrally provided with an annular land, the land being perpendicular to the central axis of the second meniscus lens.
4. The cemented lens of claim 1, wherein the first lens and the second lens are a biconvex lens and a biconcave lens, respectively, the biconvex lens is a positive lens, the first circular arc surface and the second circular arc surface are convex surfaces, respectively, the biconcave lens is a negative lens, and the third circular arc surface and the fourth circular arc surface are concave surfaces, respectively.
5. The cemented lens of claim 4, wherein the outer edge of the fourth arc surface is integrally provided with an annular land, the land being perpendicular to the central axis of the biconcave lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321557736.XU CN219997385U (en) | 2023-06-19 | 2023-06-19 | Cemented lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321557736.XU CN219997385U (en) | 2023-06-19 | 2023-06-19 | Cemented lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219997385U true CN219997385U (en) | 2023-11-10 |
Family
ID=88619662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321557736.XU Active CN219997385U (en) | 2023-06-19 | 2023-06-19 | Cemented lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219997385U (en) |
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2023
- 2023-06-19 CN CN202321557736.XU patent/CN219997385U/en active Active
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