CN216694867U - Optical eccentricity testing device for infrared lens - Google Patents
Optical eccentricity testing device for infrared lens Download PDFInfo
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- CN216694867U CN216694867U CN202220224779.5U CN202220224779U CN216694867U CN 216694867 U CN216694867 U CN 216694867U CN 202220224779 U CN202220224779 U CN 202220224779U CN 216694867 U CN216694867 U CN 216694867U
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Abstract
An infrared lens optical eccentricity testing device relates to an eccentricity testing device, wherein a fixing frame is vertically fixed at the rear part of a platform frame, upper light path guide rails are fixed at two sides of the front part of an upper section of the fixing frame, lower light path guide rails are fixed at two sides of the front part of a lower section of the fixing frame, ball screws are arranged in the middle parts of the upper light path guide rails and the lower light path guide rails, an upper light path autocollimator is fixed at the upper end of the upper section of the fixing frame through an upper bracket, a lower light path autocollimator is fixed at the lower section of the fixing frame through a bottom bracket, upper objective lenses and lower objective lenses which correspond up and down are respectively arranged on the upper light path guide rails and the lower light path guide rails in a sliding manner, and a lower light path reflector at the lower part of the platform frame reflects parallel light of the lower light path autocollimator to the lower objective lenses; the front part of the upper surface of the platform frame is provided with an air floatation rotary table, and the upper part of the air floatation rotary table is provided with a four-dimensional adjusting table; the utility model has simple structure and convenient operation, and greatly improves the detection precision of the infrared lens.
Description
Technical Field
The utility model relates to an eccentricity testing device, in particular to an optical eccentricity testing device for an infrared lens.
Background
The known optical eccentricity testing device for the infrared lens is suitable for assembling and debugging production of high-precision lenses, detecting mechanical coaxiality of the lens group and the like, along with the development of scientific and technological technology, the assembling and debugging tolerance of the infrared optical lens is continuously improved, the existing eccentricity testing device cannot realize double-optical-path centering on the infrared lens, the detection precision is low, and the normal use after subsequent assembly cannot be met.
Disclosure of Invention
In order to overcome the defects in the background art, the utility model discloses an optical eccentricity testing device for an infrared lens.
In order to realize the purpose, the utility model adopts the following technical scheme:
an optical eccentricity testing device for an infrared lens comprises a platform frame, a fixing frame, an upper light path autocollimator and a lower light path autocollimator, wherein the fixing frame is vertically fixed at the rear part of the platform frame and comprises an upper section and a lower section, the upper section is fixed on the platform frame, the lower section is fixed below the platform frame, upper light path guide rails are fixed on two front sides of the upper section fixing frame, lower light path guide rails are fixed on two front sides of the lower section fixing frame, ball screws are arranged in the middle parts of the upper light path guide rails and the lower light path guide rails, the upper light path autocollimator is fixed at the upper end of the upper section of the fixing frame through an upper bracket, the lower light path autocollimator is fixed at the lower section of the fixing frame through a bottom bracket, an upper objective lens bracket and a lower objective lens bracket are respectively arranged on the upper light path guide rails and the lower light path guide rails in a sliding manner, and upper objective lenses and lower objective lenses which are vertically corresponding to the upper objective lens bracket and the lower objective lenses respectively, The lower part of the platform frame is also provided with a lower light path reflector which reflects the parallel light of the lower light path autocollimator to the lower objective lens; the front part of the upper surface of the platform frame is provided with an air-floating rotary table, and the upper part of the air-floating rotary table is provided with a four-dimensional adjusting table.
The middle parts of the upper objective lens bracket and the lower objective lens bracket of the infrared lens optical eccentricity testing device are fixedly connected with a lead screw nut on a ball screw.
The upper light path autocollimator, the upper objective lens, the air flotation turntable, the four-dimensional adjusting table and the lower objective lens of the infrared lens optical eccentricity testing device correspond up and down, and centers of the four-dimensional adjusting table and the lower objective lens are on the same straight line.
The optical eccentricity testing device for the infrared lens is characterized in that a lower light path grating ruler is fixed on the side face of the lower portion of the fixing frame and corresponds to the lower light path guide rail.
The infrared lens optical eccentricity testing device is characterized in that ball screws arranged in the middle of the upper light path guide rail and the lower light path guide rail are respectively driven by an upper light path motor and a lower light path motor.
The optical eccentricity testing device of the infrared lens is characterized in that an air pump is externally connected with the air floatation rotary table.
The optical eccentricity testing device of the infrared lens is characterized in that the air-floating rotary table and the infrared lens to be tested on the four-dimensional adjusting table are coaxially arranged.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
according to the optical eccentricity testing device for the infrared lens, the upper light path autocollimator, the upper objective lens, the lower light path autocollimator and the lower objective lens are arranged, so that the up-and-down centering eccentricity measurement is realized, and the lower light path reflector is arranged to turn the parallel light of the lower light path autocollimator by 90 degrees to the lower objective lens, so that the equipment space is effectively saved; the upper light path autocollimator is fixed, and the position of the upper objective lens on the upper light path guide rail is independently adjusted, so that the weight of a moving object is reduced, the operation precision is higher, and the stability is good; the utility model has simple structure and convenient operation, and greatly improves the detection precision of the infrared lens.
Drawings
Fig. 1 is a schematic side view of the present invention.
Fig. 2 is a schematic front view of the present invention.
Fig. 3 is a top view of the present invention.
In the figure: 1. an upper optical path autocollimator; 2. an upper objective lens; 3. an upper objective holder; 4. a fixed mount; 5. a four-dimensional adjusting table; 6. an air-flotation turntable; 7. a platform frame; 8. a lower objective lens; 9. a lower objective holder; 10. a lower light path grating ruler; 11. a lower light path motor; 12. a ball screw; 13. a lower light path guide rail; 14. a lower light path autocollimator; 15. a lower optical path mirror; 16. an upper light path guide rail; 17. and (4) an upper bracket.
Detailed Description
The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.
The infrared lens optical eccentricity testing device described in conjunction with fig. 1-3 comprises a platform frame 7, a fixing frame 4, an upper optical path autocollimator 1 and a lower optical path autocollimator 14, wherein the fixing frame 4 is vertically fixed at the rear part of the platform frame 7, the fixing frame 4 comprises an upper section and a lower section, the upper section is fixed on the platform frame 7, the lower section is fixed below the platform frame 7, upper optical path guide rails 16 are fixed at two sides of the front of the upper section fixing frame 4, lower optical path guide rails 13 are fixed at two sides of the front of the lower section fixing frame 4, ball screws 12 are respectively arranged in the middle parts of the upper optical path guide rails 16 and the lower optical path guide rails 13, the upper optical path autocollimator 1 is fixed at the upper end of the upper section of the fixing frame 4 through an upper bracket 17, the lower optical path autocollimator 14 is fixed at the lower section of the fixing frame 4 through a bottom bracket, and an upper objective lens bracket 3 is respectively arranged on the upper optical path guide rails 16 and the lower optical path guide rails 13 in a sliding manner, The upper objective lens 2 and the lower objective lens 8 which are vertically corresponding are respectively fixed on the upper objective lens bracket 3 and the lower objective lens bracket 9, the lower part of the platform frame 7 is also provided with a lower light path reflector 15, and the lower light path reflector 15 reflects the parallel light of the lower light path autocollimator 14 to the lower objective lens 8; an air-floating rotary table 6 is arranged at the front part of the upper surface of the platform frame 7, and a four-dimensional adjusting table 5 is arranged at the upper part of the air-floating rotary table 6.
The optical eccentricity testing device for the infrared lens is characterized in that the middle parts of the upper objective lens support 3 and the lower objective lens support 9 are fixedly connected with a screw nut on the ball screw 12.
The optical eccentricity testing device of the infrared lens is characterized in that an upper optical path autocollimator 1, an upper objective lens 2, an air flotation turntable 6, a four-dimensional adjusting table 5 and a lower objective lens 8 are vertically corresponding and the centers of the four-dimensional adjusting table and the lower objective lens are on the same straight line.
The optical eccentricity testing device for the infrared lens is characterized in that a lower light path grating ruler 10 is fixed on the side face of the lower portion of the fixing frame and corresponds to the lower light path guide rail 13.
The infrared lens optical eccentricity testing device is characterized in that ball screws 12 arranged in the middle parts of an upper light path guide rail 16 and a lower light path guide rail 13 are respectively driven by an upper light path motor and a lower light path motor 11.
The optical eccentricity testing device of the infrared lens is characterized in that an air pump is externally connected with the air floating rotary table 6.
The optical eccentricity testing device of the infrared lens is characterized in that the air-floating rotary table 6 and the infrared lens to be tested on the four-dimensional adjusting table are coaxially arranged.
When the infrared lens optical eccentricity testing device is implemented, when in use, the upper light path motor and the lower light path motor 11 respectively drive the ball screw 12 on the upper section fixing frame and the ball screw 12 on the lower end fixing frame, so as to drive the upper objective lens 2 and the lower objective lens 8 to adjust the positions on the upper light path guide rail 16 and the lower light path guide rail 13, the external air pump is started, so that the air flotation turntable 6 drives the four-dimensional adjusting table 5 to rotate, the infrared lens to be tested is placed on the upper surface of the four-dimensional adjusting table 5, the parallel light emitted by the upper light path autocollimator 1 is changed into a convergent light path after passing through the upper objective lens 2, the convergent light path is converged on the center of the curvature radius of the upper infrared lens on the four-dimensional adjusting table 5, the parallel light emitted by the lower light path autocollimator 14 is bent by 90 degrees through the lower light path reflector 15, the light path at the lower part of the platform frame 7 is effectively shortened, so as to reduce the height of the platform frame 7, the refracted parallel light becomes a converging light path after passing through the lower objective lens, converges on the center of the curvature radius below the infrared lens on the four-dimensional adjusting table to form a spherical center reflection image, and displays the circular trace drawing quantity of the spherical center image of the air floatation turntable 6 in a required qualified range through the external connection of an industrial personal computer display screen, thereby indicating that the infrared lens is a qualified lens; if the circle drawing quantity of the track displaying the spherical center image of the air floatation rotary table 6 on the display screen of the industrial personal computer exceeds the qualified range of the requirement, the infrared lens is an unqualified lens.
The present invention is not described in detail in the prior art.
The embodiments selected for the purpose of disclosing the utility model, are presently considered to be suitable, it being understood, however, that the utility model is intended to cover all variations and modifications of the embodiments falling within the scope of the inventive concept and the utility model.
Claims (7)
1. The utility model provides an infrared lens optics eccentric testing arrangement, includes platform frame, mount, goes up light path autocollimator and light path autocollimator down, characterized by: the fixing frame is vertically fixed at the rear part of the platform frame and comprises an upper section and a lower section, the upper section is fixed on the platform frame, the lower section is fixed below the platform frame, upper light path guide rails are fixed at two sides of the front of the upper section fixing frame, lower light path guide rails are fixed at two sides of the front of the lower section fixing frame, ball screws are arranged in the middle of the upper light path guide rail and the lower light path guide rail, the upper light path autocollimator is fixed at the upper end of the upper section of the fixing frame through an upper bracket, the lower light path autocollimator is fixed at the lower section of the fixing frame through a bottom bracket, an upper objective lens bracket and a lower objective lens bracket are respectively arranged on the upper light path guide rail and the lower light path guide rail in a sliding way, an upper objective lens and a lower objective lens which are vertically corresponding are respectively fixed on the upper objective lens bracket and the lower objective lens bracket, the lower part of the platform frame is also provided with a lower light path reflector which reflects the parallel light of the lower light path autocollimator to a lower objective lens; the front part of the upper surface of the platform frame is provided with an air-floating rotary table, and the upper part of the air-floating rotary table is provided with a four-dimensional adjusting table.
2. The infrared lens optical eccentricity test device of claim 1, wherein: the middle parts of the upper objective lens bracket and the lower objective lens bracket are fixedly connected with a lead screw nut on the ball screw.
3. The infrared lens optical eccentricity test device of claim 1, wherein: the upper light path autocollimator, the upper objective lens, the air-floating rotary table, the four-dimensional adjusting table and the lower objective lens are vertically corresponding and the centers of the upper light path autocollimator, the upper objective lens, the air-floating rotary table, the four-dimensional adjusting table and the lower objective lens are on the same straight line.
4. The infrared lens optical eccentricity test device of claim 1, wherein: a lower light path grating ruler is fixed on the side surface of the lower part of the fixed frame and corresponds to the lower light path guide rail.
5. The infrared lens optical eccentricity testing device of claim 1, wherein: the ball screws arranged in the middle of the upper light path guide rail and the lower light path guide rail are respectively driven by an upper light path motor and a lower light path motor.
6. The infrared lens optical eccentricity testing device of claim 1, wherein: the air-float rotary table is externally connected with an air pump.
7. The infrared lens optical eccentricity test device of claim 1, wherein: the air-floating rotary table and the infrared lens to be measured on the four-dimensional adjusting table are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220224779.5U CN216694867U (en) | 2022-01-27 | 2022-01-27 | Optical eccentricity testing device for infrared lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220224779.5U CN216694867U (en) | 2022-01-27 | 2022-01-27 | Optical eccentricity testing device for infrared lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216694867U true CN216694867U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220224779.5U Active CN216694867U (en) | 2022-01-27 | 2022-01-27 | Optical eccentricity testing device for infrared lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216694867U (en) |
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2022
- 2022-01-27 CN CN202220224779.5U patent/CN216694867U/en active Active
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