CN219757693U - Optical adjusting device of medium-performance thermal imager - Google Patents
Optical adjusting device of medium-performance thermal imager Download PDFInfo
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- CN219757693U CN219757693U CN202321055945.4U CN202321055945U CN219757693U CN 219757693 U CN219757693 U CN 219757693U CN 202321055945 U CN202321055945 U CN 202321055945U CN 219757693 U CN219757693 U CN 219757693U
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- guide rail
- lens
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- ball screw
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- 230000003287 optical effect Effects 0.000 title claims abstract description 16
- 238000005259 measurement Methods 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000001931 thermography Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
An optical adjustment device of a medium-performance thermal imager belongs to the technical field of optical adjustment. The device comprises a base, a linear guide rail, a ball screw linear module, a photoelectric auto-collimator, a CCD camera, an inclined translation workbench and a three-jaw chuck; at least two inclined translation work tables are arranged in parallel on the front side plane of the base, a three-jaw chuck is arranged in the center of each inclined translation work table, and the center of each three-jaw chuck is provided with a lens clamping groove; the linear guide rail is arranged on the convex surface of the rear side of the base, the ball screw linear module is arranged on the linear guide rail in a left-right sliding mode, the vertical guide rail which guides up and down is arranged on the front side of the ball screw linear module, the support is arranged on the vertical guide rail in a sliding mode, and the photoelectric auto-collimator and the CCD camera are symmetrically arranged on the front side of the support in a left-right mode. The adjustment device has higher measurement efficiency for the medium-performance thermal image product, can respectively control the inclination error and the translation error of the lens in the thermal imager, and improves the adjustment efficiency and the equipment utilization rate of the lens.
Description
Technical Field
The utility model belongs to the technical field of optical adjustment, and particularly relates to an optical adjustment device of a medium-performance thermal imager.
Background
The center deviation measuring instrument is professional equipment for measuring the eccentricity of the lens, can also be used for assembling and adjusting the lens, is suitable for optical precision assembling and adjusting of a high-performance thermal imager, but is used for measuring a medium-performance thermal image product, and has the problems of high price, low assembling and adjusting efficiency, long equipment occupation time and the like. At present, medium-performance thermal imaging products represented by uncooled thermal imagers are widely applied in markets, and a low-cost and high-efficiency adjusting device is needed to meet the optical adjusting requirements of large-batch medium-performance thermal imagers of enterprises.
Disclosure of Invention
The utility model provides an optical adjustment device of a thermal imager with medium performance, which is a device capable of adjusting a thermal image product with medium performance and has the advantages of low price and high efficiency.
The optical adjustment device of the medium-performance thermal imager is characterized by comprising a base, a linear guide rail, a ball screw linear module, a photoelectric auto-collimator, a CCD camera, an inclined translation workbench and a three-jaw chuck; the front side of the base is a plane, the rear side of the base is provided with a bulge, at least two inclined translation work tables are arranged in parallel on the plane of the front side of the base, a three-jaw chuck is arranged in the center of each inclined translation work table, and the center of each three-jaw chuck is provided with a lens clamping groove; the linear guide rail is arranged on the convex surface of the rear side of the base, the ball screw linear module is arranged on the linear guide rail in a left-right sliding mode, the vertical guide rail which guides up and down is arranged on the front side of the ball screw linear module, the support is arranged on the vertical guide rail in a sliding mode, and the photoelectric auto-collimator and the CCD camera are symmetrically arranged on the front side of the support in a left-right mode.
The support is L-shaped, one end of the support is slidably mounted on a vertical guide rail of the ball screw linear module, the other end of the support is downward, a mirror clamp is rotatably mounted at the downward end, the mirror clamp is bilaterally symmetrical along a central axis, the photoelectric autocollimator and the CCD camera are respectively mounted on two sides of the mirror clamp, and the photoelectric autocollimator and the CCD camera can be aligned to a lens clamping groove through rotation and sliding.
The utility model has the beneficial effects that: the method is suitable for measuring the medium-performance thermal image products, and compared with the prior art that the method utilizes the center deviation measuring instrument, the method can reduce cost and has higher measuring efficiency for the medium-performance thermal image products. And the photoelectric autocollimator and the industrial camera are integrated in the device, so that the inclination error and the translation error of the lens in the thermal imager are respectively controlled, and the adjustment efficiency and the equipment utilization rate of the lens are improved.
Drawings
Fig. 1 is a schematic structural diagram of an optical tuning device of a thermal imager with medium performance.
Fig. 2 is a diagram of the operating state of the optical tunable device of the thermal imaging system with medium performance.
Fig. 3 is a schematic view of mounting surfaces of each lens to be mounted.
Fig. 4 is a schematic view showing the inclination of the mounting surface of the measuring lens L1.
Fig. 5 is a schematic view of the mounting surface of the metering lens Ln.
Fig. 6 is a schematic diagram of a lens center and a lens barrel center.
Wherein: the device comprises a 1-base, a 2-linear guide rail, a 3-ball screw linear module, a 4-support, a 5-photoelectric auto-collimator, a 6-CCD camera, a 7-tilting translation workbench, an 8-three-jaw chuck, a 9-lens clamping groove, a 10-L lens, a 11-first lens mounting surface, a 12-Ln1 lens, a 13-lens barrel, a 14-L1 lens, a 15-second lens mounting surface, a 16-L parallel flat crystal, a 17-L1 parallel flat crystal, a 20-lens barrel center and a 21-L1 lens center.
Detailed Description
Example 1: the optical adjustment device of the medium-performance thermal imager is characterized by comprising a base 1, a linear guide rail 2, a ball screw linear module 3, a photoelectric auto-collimator 5, a CCD camera 6, an inclined translation workbench 7 and a three-jaw chuck 8; the front side of the base 1 is a plane, the rear side is provided with a bulge, at least two inclined translation work tables 7 are arranged in parallel on the plane of the front side of the base 1, a three-jaw chuck 8 is arranged in the center of each inclined translation work table 7, and the center of each three-jaw chuck 8 is provided with a lens clamping groove 9; the linear guide rail 2 is installed on the convex surface of the rear side of the base 1, the ball screw linear module 3 is installed on the linear guide rail 2 in a left-right sliding mode, the front side of the ball screw linear module is provided with a vertical guide rail which guides up and down, the support 4 is installed on the vertical guide rail in a sliding mode, one end of the support 4 is installed on the vertical guide rail of the ball screw linear module 3 in a sliding mode, the end head of the other end of the support is downward, the mirror clamp is installed at the downward end in a rotating mode, the mirror clamp is bilaterally symmetrical along a central axis, the photoelectric autocollimator 5 and the CCD camera 6 are installed on two sides of the mirror clamp respectively, and the photoelectric autocollimator 5 and the CCD camera 6 can be aligned with the lens clamping groove 9 through rotation and sliding.
The method for adjusting the lens by using the medium-performance thermal imager optical adjusting device comprises the following steps of:
s1, fixing a lens barrel 13 of the thermal imager to be installed on a lens clamping groove 9 in the center of the tilting and translating workbench 7 through a three-jaw chuck 8.
S2-as shown in FIG. 3, the L-shaped lens 10 is placed in the lens clamping groove 9, and the photoelectric auto-collimator 5 is right above the lens barrel 13 through rotation and left-right translation. An L parallel flat crystal 16 corresponding to the L lens is placed on the first lens mounting surface 11 in the middle. The tilt state of the tilt translation workbench 7 is adjusted, so that parallel light emitted by the photoelectric auto-collimator 5 is focused on the CCD center area of the photoelectric auto-collimator 5 after being reflected by the upper surface of the L-shaped parallel flat crystal 16, and the tilt angle value of the L-shaped parallel flat crystal 16 is set to 0.
S3-as shown in fig. 4 and 5, removing the L parallel flat crystal 16, placing the L1 parallel flat crystal 17 with the same caliber size as the L1 lens 14 on the second lens mounting surface 15, observing the angle value of the reflected image, and controlling the angle value within the allowable error range by trimming the mounting surface if the angle value exceeds the angle value.
S4-repeating S3, and measuring and controlling the inclination angle of the mounting surface of the Ln1 lens 12.
S5, removing the photoelectric auto-collimator 5, moving the CCD camera 6 to the position right above the lens barrel 13, and moving the CCD camera 6 up and down until the lens barrel clearly images.
S6, determining the coordinates of the circle center 20 of the lens barrel by using the CCD camera 6, and marking the coordinates as (x 1, y 1).
S7-the L1 lens 14 is placed on the second lens mounting surface 15, and the CCD camera 6 is moved up and down until the L1 lens 14 is clearly imaged.
S8, determining the coordinates of the center 21 of the L1 lens by using an industrial camera, and marking the coordinates as (xn, yn). And adjusting the position of the L1 lens 14 until the distance between the circle center of the L1 lens and the circle center of the lens barrel is controlled within an allowable error, and injecting special glue solution into the L1 lens 14 for fixation.
S9-repeating S8, and adjusting the Ln1 lens 12; when other products are required to be assembled and adjusted in the whole process, the bracket 4 can be directly moved to the position above the other inclined translation workbench 7 for assembly and adjustment.
Claims (2)
1. The optical adjustment device of the medium-performance thermal imager is characterized by comprising a base, a linear guide rail, a ball screw linear module, a photoelectric auto-collimator, a CCD camera, an inclined translation workbench and a three-jaw chuck; the front side of the base is a plane, the rear side of the base is provided with a bulge, at least two inclined translation work tables are arranged in parallel on the plane of the front side of the base, a three-jaw chuck is arranged in the center of each inclined translation work table, and the center of each three-jaw chuck is provided with a lens clamping groove; the linear guide rail is arranged on the convex surface of the rear side of the base, the ball screw linear module is arranged on the linear guide rail in a left-right sliding mode, the vertical guide rail which guides up and down is arranged on the front side of the ball screw linear module, the support is arranged on the vertical guide rail in a sliding mode, and the photoelectric auto-collimator and the CCD camera are symmetrically arranged on the front side of the support in a left-right mode.
2. The optical adjustment device for the medium-performance thermal imager according to claim 1, wherein the bracket is L-shaped, one end of the bracket is slidably mounted on a vertical guide rail of the ball screw linear module, the other end is downward, a mirror clip is rotatably mounted at the downward end, the mirror clip is bilaterally symmetrical along a central axis, the photoelectric auto-collimator and the CCD camera are respectively mounted on two sides of the mirror clip, and the photoelectric auto-collimator and the CCD camera can be aligned with the lens clip groove through rotation and sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321055945.4U CN219757693U (en) | 2023-05-05 | 2023-05-05 | Optical adjusting device of medium-performance thermal imager |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321055945.4U CN219757693U (en) | 2023-05-05 | 2023-05-05 | Optical adjusting device of medium-performance thermal imager |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219757693U true CN219757693U (en) | 2023-09-26 |
Family
ID=88074906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321055945.4U Active CN219757693U (en) | 2023-05-05 | 2023-05-05 | Optical adjusting device of medium-performance thermal imager |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219757693U (en) |
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2023
- 2023-05-05 CN CN202321055945.4U patent/CN219757693U/en active Active
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