CN213750465U - Three-section type connecting structure of high-precision imaging lens - Google Patents
Three-section type connecting structure of high-precision imaging lens Download PDFInfo
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- CN213750465U CN213750465U CN202023268620.3U CN202023268620U CN213750465U CN 213750465 U CN213750465 U CN 213750465U CN 202023268620 U CN202023268620 U CN 202023268620U CN 213750465 U CN213750465 U CN 213750465U
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Abstract
The utility model discloses a high accuracy imaging lens syllogic connection structure, it includes high accuracy imaging lens, and this high accuracy imaging lens has 1 time lens subassembly, array microlens subassembly and 2.5 times lens subassembly, high accuracy imaging lens adopts the syllogic structure, and the syllogic structure includes the 1 times lens subassembly that is located high accuracy imaging lens top, the 2.5 times lens subassembly that is located high accuracy imaging lens bottom and the array microlens subassembly that sets up between 2.5 times lens subassembly and 1 times lens subassembly; the 1-time lens assembly is detachably connected to the top of the fixed seat of the array micro-lens assembly; the 2.5-time lens component is detachably connected to the bottom of the fixed seat of the array micro-lens component. The utility model discloses be convenient for installation and later maintenance.
Description
Technical Field
The utility model belongs to the technical field of optical lens's installation adjustment technique and specifically relates to a high accuracy imaging lens syllogic connection structure is related to.
Background
The common technique of the existing lens is to mount each lens and array micro-lens in the lens barrel, and then to adjust.
According to the requirement of optical design, the central axis deviation of each lens of the high-precision imaging lens needs to be less than 2 ', nearly 20 lenses and array micro-lenses are arranged in a lens barrel according to the prior art, the central axis deviation of each lens can reach 8 ' -10 ', and the traditional processing mode is not beneficial to assembly.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high accuracy imaging lens syllogic connection structure, its be convenient for each other assembled joint.
In order to solve the above technical problem, an embodiment of the present invention provides a three-section type connection structure for a high-precision imaging lens, which includes a high-precision imaging lens, wherein the high-precision imaging lens includes a 1-fold lens component, an array micro-lens component and a 2.5-fold lens component, the high-precision imaging lens adopts a three-section type structure, and the three-section type structure includes a 1-fold lens component located at the top of the high-precision imaging lens, a 2.5-fold lens component located at the bottom of the high-precision imaging lens, and an array micro-lens component disposed between the 2.5-fold lens component and the 1-fold lens component;
the 1-time lens assembly is detachably connected to the top of the fixed seat of the array micro-lens assembly;
the 2.5-time lens component is detachably connected to the bottom of the fixed seat of the array micro-lens component.
Further, a first flange plate is arranged at the bottom of the shell of the 1-time lens assembly, bolt holes corresponding to the first flange plate are formed in the top of the fixing seat of the array micro-lens assembly, and fixing bolts are installed in the first flange plate and the bolt holes formed in the top of the fixing seat of the array micro-lens assembly.
Furthermore, the bottom of the fixed seat of the array micro-lens component is provided with a circular inner groove, and a screw hole for fixing the 2.5-time lens component is arranged in the circular inner groove.
Furthermore, the high-precision imaging lens is fixed on the mounting plate through lugs arranged on the array micro-lens component fixing seat.
Further, the lug is provided with a strip-shaped fixing hole.
The utility model discloses following beneficial effect has:
1. the three-section connecting mechanism is convenient for the sectional assembly of the high-precision imaging lens to complete the work and the later butt joint assembly work.
2. The high-precision imaging lens project is a key part of a full-automatic laser direct imaging exposure machine, the projection line width precision of the exposure machine is usually 0.05mm, and in order to improve the exposure precision, laser is irradiated to a digital micro-mirror device (DMD) and reflected to 1 time to form an array micro-lens in a high-precision mode; then irradiating the array micro-lens to 2.5 times of high-precision imaging to perform exposure imaging, which can improve the projection linewidth precision of the exposure machine by 2-3 times on the basis of 0.05 mm. The high-precision imaging lens group formed in the way has extremely high requirement on the concentricity of the optical central axis of each component, and in the design process, in order to ensure the absolute concentricity of nearly 20 optical lenses and array micro lenses, the lens group is designed into a three-group structure and then is integrally connected and assembled, so that the installation precision can be effectively improved.
Drawings
Fig. 1 is a schematic diagram of a three-section type connection structure of a high-precision imaging lens.
FIG. 2 is a schematic view of a holder for the array microlens assembly, wherein (a) is a schematic view of the bottom of the holder for the array microlens assembly; (b) is a top schematic view of a fixed base of the array micro-lens component.
Fig. 3 is a schematic view of a 1-magnification lens assembly.
FIG. 4 is a schematic diagram of an array of micro-lens assemblies.
Fig. 5 is a schematic view of a 2.5 lens assembly.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the following embodiments.
The embodiment of the utility model provides a high-precision imaging lens three-section connecting structure, see figures 1-5, a high-precision imaging lens three-section connecting structure, which comprises a high-precision imaging lens, the high-precision imaging lens has a 1-time lens component, an array micro-lens component and a 2.5-time lens component, the high-precision imaging lens adopts a three-section structure, the three-section structure comprises a 1-time lens component 1 positioned at the top of the high-precision imaging lens, a 2.5-time lens component 2 positioned at the bottom of the high-precision imaging lens and an array micro-lens component 3 arranged between the 2.5-time lens component 2 and the 1-time lens component 1, wherein the 1-time lens component 1 is detachably connected to the top of a fixed seat of the array micro-lens component 3, and as a choice, the 1-time lens component and the array micro-lens component are assembled through bolts, for example, the bottom of the housing of the 1-fold lens assembly 1 is provided with a first flange 1a, the top of the fixing base of the array microlens assembly 3 is provided with a bolt hole corresponding to the first flange, and the first flange and the bolt hole arranged at the top of the fixing base of the array microlens assembly 3 are provided with fixing bolts.
The 2.5-time lens component 2 is detachably connected to the bottom of the fixing seat of the array micro-lens component 3, and the 2.5-time lens component and the array micro-lens component can be assembled through screws, for example, a circular inner groove 3a is formed in the bottom of the fixing seat of the array micro-lens component 3, a screw hole 3b for fixing the 2.5-time lens component is formed in the circular inner groove, and the mounting requirements of each other are met through the screws.
According to the three-section type connecting structure, three structural sections (namely the 1-time lens assembly, the array micro-lens assembly and the 2.5-time lens assembly) can be machined in advance, the machining precision of each structural section can be effectively guaranteed, and three-section assembling work is carried out at the later stage.
It should be noted that the high-precision imaging lens is fixed on the mounting plate through a lug arranged on the array micro-lens component fixing seat, for example, the lug is provided with a strip-shaped fixing hole, so that the whole high-precision imaging lens is conveniently fixed on the mounting plate by using a bolt, and for example, two rows and six rows of high-precision imaging lenses are arranged on the mounting plate.
The structure of each of the three structural sections is shown in fig. 3 to 5, and since the internal structure of the three structural sections belongs to the prior art, only a brief explanation is given here:
in fig. 3, a 1-time lens assembly is shown, the 1-time lens assembly having a 1-time lens assembly housing 1-1, a plurality of 1-time lens optics 1-2 mounted in a lens mounting channel of the 1-time lens assembly housing 1-1, in fig. 4, an array micro lens assembly is shown, the array micro lens assembly having an array micro lens assembly housing 3-1, an array micro lens 3-2 mounted in a lens mounting channel of the array micro lens assembly housing 3-1, a 2.5-time lens assembly is shown in fig. 5, the 2.5-time lens assembly including a 2.5-time lens assembly housing 2-1, and a plurality of 2.5-time lens optics 2-2 mounted in a lens mounting channel of the 2.5-time lens assembly housing 2-1. The selection of the lenses of each structural section in the high-precision imaging lens is selected according to the lens requirements, belongs to the prior art, and is not repeated herein.
Certainly, the bottom of the lug 3c (the end of the lug far away from the 1-time lens component) arranged on the array microlens component fixing seat can be provided with positioning holes, for example, two positioning holes, and the high-precision imaging lens fixing plate is provided with two positioning bulges matched with the positioning holes, so that the positioning and assembling operation can be conveniently and quickly carried out, and the assembling efficiency is improved.
Designing the high-precision imaging lens to be a 1-time high-precision imaging part as a single lens (namely a 1-time lens assembly), wherein the optical axis of each lens is calibrated to be < 2'; the 2.5 x high precision imaging section is also designed as a separate lens (i.e. 2.5 x lens assembly) where the optical axis of each lens is also calibrated to < 2'; the array micro-lens (namely the array micro-lens component) is designed between the array micro-lens and the array micro-lens, and the assembly structure can facilitate the processing in the early stage and the assembly in the later stage.
It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.
Claims (5)
1. The high-precision imaging lens three-section type connecting structure comprises a high-precision imaging lens, wherein the high-precision imaging lens is provided with a 1-time lens component, an array micro-lens component and a 2.5-time lens component, and is characterized in that the high-precision imaging lens adopts a three-section type structure which comprises the 1-time lens component positioned at the top of the high-precision imaging lens, the 2.5-time lens component positioned at the bottom of the high-precision imaging lens and the array micro-lens component arranged between the 2.5-time lens component and the 1-time lens component;
the 1-time lens assembly is detachably connected to the top of the fixed seat of the array micro-lens assembly;
the 2.5-time lens component is detachably connected to the bottom of the fixed seat of the array micro-lens component.
2. The three-section connecting structure of a high-precision imaging lens according to claim 1, wherein a first flange is disposed at the bottom of the housing of the 1-fold lens assembly, bolt holes corresponding to the first flange are disposed at the top of the fixing base of the array micro-lens assembly, and fixing bolts are disposed in the bolt holes disposed at the top of the fixing base of the array micro-lens assembly and the first flange.
3. The three-section connecting structure of a high-precision imaging lens assembly as claimed in claim 1, wherein the bottom of the fixing base of the array microlens assembly is provided with a circular inner groove, and the circular inner groove is provided with a screw hole for fixing the 2.5 lens assembly.
4. The three-section connecting structure of a high-precision imaging lens according to claim 1, wherein the high-precision imaging lens is fixed on the mounting plate through a lug arranged on the array micro-lens component fixing seat.
5. The three-stage connecting structure of a high-precision imaging lens according to claim 4, wherein the lug is provided with an elongated fixing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023268620.3U CN213750465U (en) | 2020-12-30 | 2020-12-30 | Three-section type connecting structure of high-precision imaging lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023268620.3U CN213750465U (en) | 2020-12-30 | 2020-12-30 | Three-section type connecting structure of high-precision imaging lens |
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| Publication Number | Publication Date |
|---|---|
| CN213750465U true CN213750465U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023268620.3U Active CN213750465U (en) | 2020-12-30 | 2020-12-30 | Three-section type connecting structure of high-precision imaging lens |
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- 2020-12-30 CN CN202023268620.3U patent/CN213750465U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220725 Address after: 215028 4th floor, scientific research office building B, No. 272 Fengli street, Suzhou Industrial Park, Suzhou, Jiangsu Province Patentee after: Yuanna micro optics technology (Suzhou) Co.,Ltd. Address before: 201802 area a, 1st floor, building 2, No.65 Tianwang Road, Nanxiang Town, Jiading District, Shanghai Patentee before: Shanghai Foye Optical Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |