CN213239415U - Quick optical axis alignment system of optical lens modulation transfer function detection equipment - Google Patents
Quick optical axis alignment system of optical lens modulation transfer function detection equipment Download PDFInfo
- Publication number
- CN213239415U CN213239415U CN202022355775.4U CN202022355775U CN213239415U CN 213239415 U CN213239415 U CN 213239415U CN 202022355775 U CN202022355775 U CN 202022355775U CN 213239415 U CN213239415 U CN 213239415U
- Authority
- CN
- China
- Prior art keywords
- reticle
- sliding table
- transfer function
- modulation transfer
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model discloses a quick optical axis of optical lens modulation transfer function check out test set system of adjusting well, including camera support, sampling camera, detection support, measured object tool, measured lens, reticle, light source, high-accuracy electronic XY axle horizontal slip table, high-accuracy electronic Z axle slip table, driver, controller, main control computer and automatic feeding arm, high-accuracy electronic XY axle horizontal slip table is arranged in between high-accuracy electronic Z axle slip table and the light source, the reticle is located the light source top, and high-accuracy electronic XY axle horizontal slip table can make the reticle translate in horizontal XY direction, the measured object is located the top connection support of reticle on the detection support, the measured lens is placed on the measured object tool through automatic feeding arm, the camera support is located measured lens top. Compared with the prior art, the utility model the advantage lie in: the device has the advantages of simple structure, low cost, quick action, test time saving, high precision and good consistency.
Description
Technical Field
The utility model relates to a modulation transfer function automated inspection technical field of optical system middle head specifically indicates a quick optical axis of optical lens modulation transfer function check out test set system of adjusting well.
Background
The modulation transfer function and the defocusing curve are important parameters for evaluating the imaging quality of the optical lens. The automatic testing of the modulation transfer function and the defocusing curve of the optical lens is a necessary process and quality requirement for the production of the high-quality lens at present. In an automatic detection machine application, the detection repetition precision is the most important parameter of the equipment. In the feeding process, the feeding precision of the manipulator determines the deviation of the horizontal position of the measured object, and due to the high-precision characteristic of an optical system and the small horizontal deviation, the deviation of an optical axis can be caused, so that the repetition precision is influenced. Further reduce the horizontal position deviation of material loading process, there is great degree of difficulty and higher cost, consequently, adjust well fast to the optical axis deviation, become the better scheme that improves repeatability.
SUMMERY OF THE UTILITY MODEL
The utility model provides a simple structure, the cost is lower, and test time is saved in the fast action, and the precision is high, the quick optical axis of an optical lens modulation transfer function check out test set system of adjusting well that the uniformity is good.
The utility model provides a technical scheme does: the utility model provides a quick optical axis of optical lens modulation transfer function check out test set system of adjusting well, includes camera support, sampling camera, detection support, measured object tool, measured lens, reticle, light source, high-accuracy electronic XY axle horizontal slip table, high-accuracy electronic Z axle slip table, driver, controller, main control computer and automatic feeding arm, high-accuracy electronic XY axle horizontal slip table is arranged in between high-accuracy electronic Z axle slip table and the light source, the reticle is located the light source top, and high-accuracy electronic XY axle horizontal slip table can make the reticle translate in horizontal XY direction, the measured object tool is located the top of reticle and connects and supports on detection support, the measured lens is placed on the measured object tool through automatic feeding arm, the camera support is located measured lens top, connects the installation sampling camera.
Furthermore, a modulation transfer function test program is arranged on the main control computer, the main control computer is connected with the controller, the controller is connected with the driver, and the driver drives the high-precision electric XY-axis horizontal sliding table and the high-precision electric Z-axis sliding table.
Furthermore, the sampling camera is connected with a main control computer, and the driver can trigger the sampling camera.
Compared with the prior art, the utility model the advantage lie in:
the precise electric XY-axis horizontal sliding table is arranged between a high-precision electric Z-axis sliding table and a light source, and a reticle is controlled to move to carry out optical axis alignment, so that an optical path alignment function is realized, the cost is greatly reduced, the occupied space area is small, and the equipment is compact;
2, a precision electric XY-axis horizontal sliding table is arranged between a high-precision electric Z-axis sliding table and a light source, and the reticle is controlled to move to carry out optical axis alignment, so that the moving distance is small and the stroke requirement is low;
3 can satisfy different lens under test, different test visual field requirements, different judgement specification requirements, adaptability is wide, and switching speed is fast.
Drawings
Fig. 1 is a structural diagram of an embodiment of the present invention.
Fig. 2 is a flow chart of the operation of the present invention.
FIG. 3 is a projection reticle taken by the central camera before alignment of the optical axes.
Fig. 4 is a projection reticle captured by a camera in the center of the focal position before alignment of the optical axis.
Fig. 5 is a projection reticle collected by the center camera at the focal position after alignment of the optical axes.
As shown in the figure: 1. the device comprises a camera support, 2, a sampling camera, 3, a detection support, 4, a measured object jig, 5, a measured lens, 6, a reticle, 7, a light source, 8, a high-precision electric XY-axis horizontal sliding table, 9, a high-precision electric Z-axis sliding table, 10, a driver, 11, a controller, 12, a main control computer, 13 and an automatic feeding mechanical arm.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-5, a fast optical axis alignment system for an optical lens modulation transfer function detection device comprises a camera support 1, a sampling camera 2, a detection support 3, a measured object fixture 4, a measured lens 5, a reticle 6, a light source 7, a high-precision electric XY-axis horizontal sliding table 8, a high-precision electric Z-axis sliding table 9, a driver 10, a controller 11, a main control computer 12 and an automatic feeding mechanical arm 13, wherein the high-precision electric XY-axis horizontal sliding table 8 is arranged between the high-precision electric Z-axis sliding table 9 and the light source 7, the reticle 6 is arranged above the light source 7, the high-precision electric XY-axis horizontal sliding table 8 can enable the reticle 6 to translate in the horizontal XY direction, the measured object fixture 4 is arranged above the reticle 6 and is connected and supported on the detection support 3, the measured lens 5 is arranged on the measured object fixture 4 through the automatic feeding mechanical arm 13, the camera support 1 is located above the tested lens 5 and is connected with the sampling camera 2.
The main control computer 12 is provided with a modulation transfer function test program, the main control computer 12 is connected with a controller 11, the controller 11 is connected with a driver 10, the driver 10 drives a high-precision electric XY-axis horizontal sliding table 8 and a high-precision electric Z-axis sliding table 9, the sampling camera 2 is connected with the main control computer 12, and the driver 10 can trigger the sampling camera 2.
When the utility model is implemented, the high-precision electric XY-axis horizontal sliding table 8 is arranged between the high-precision electric Z-axis sliding table 9 and the light source 7, the reticle 6 is positioned above the light source 7, and the high-precision electric XY-axis horizontal sliding table 8 can make the reticle 6 translate in the horizontal XY direction as shown in figure 1; a modulation transfer function test program on a main control computer 12 controls a controller 11, and the controller 11 controls a driver 10 to drive a high-precision electric Z-axis sliding table 9 and a high-precision electric XY-axis horizontal sliding table 8 to move; the controller 11 can trigger the sampling camera 2 positioned at each field position on the camera support 1 to take a picture, the picture is transmitted to a modulation transfer function test program on the main control computer 12, and a reticle 6 is projected to the sampling camera 2 through the tested lens 5 on the picture; a modulation transfer function test program on the main control computer 12 calculates a modulation transfer function by analyzing the image projection cross line of the central sampling camera 2 as shown in fig. 3, controls the high-precision electric Z-axis sliding table 9 to move, takes a plurality of pictures at different Z-axis positions at fixed intervals, analyzes and calculates the modulation transfer function, and finds out the Z-axis position corresponding to the picture with the highest modulation transfer function value, namely the focus position; the cross center of the projected cross line image at the position may not be in the center of the image visual field as shown in fig. 4, a modulation transfer function test program which is operated on a main control computer 12 automatically identifies the position of the cross center, calculates the number of distance pixels deviating from the visual field center, measures the obtained focal length of the measured lens through other modes, the known focal length of a sampling camera, the parameters of a sensor of the sampling camera and other information, calculates the distance mm that the reticle 6 needs to move, controls the high-precision electric XY-axis horizontal sliding table 8 to move, and quickly moves the cross center to the visual field center as shown in fig. 5; according to the precision requirement, the rapid alignment process can be repeatedly carried out, and after the alignment is finished, the defocusing test can be normally carried out.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (3)
1. The utility model provides a quick optical axis of optical lens modulation transfer function check out test set system of adjusting well, includes camera support (1), sampling camera (2), detect support (3), measured object tool (4), measured lens (5), reticle (6), light source (7), high-accuracy electronic XY axle horizontal sliding table (8), high-accuracy electronic Z axle sliding table (9), driver (10), controller (11), main control computer (12) and automatic feeding arm (13), its characterized in that: high-precision electric XY-axis horizontal sliding table (8) is arranged between high-precision electric Z-axis sliding table (9) and light source (7), reticle (6) is located above light source (7), high-precision electric XY-axis horizontal sliding table (8) can enable reticle (6) to translate in the horizontal XY direction, measured object jig (4) is located above reticle (6) and is connected and supported on detection support (3), measured lens (5) is placed on measured object jig (4) through automatic feeding mechanical arm (13), camera support (1) is located above measured lens (5) and is connected and installed sampling camera (2).
2. The system of claim 1, wherein the optical lens modulation transfer function detection apparatus fast optical axis alignment system comprises: the device is characterized in that a modulation transfer function test program is arranged on the main control computer (12), the main control computer (12) is connected with the controller (11), the controller (11) is connected with the driver (10), and the driver (10) drives the high-precision electric XY-axis horizontal sliding table (8) and the high-precision electric Z-axis sliding table (9).
3. The system of claim 2, wherein the optical lens modulation transfer function detection apparatus fast optical axis alignment system comprises: the sampling camera (2) is connected with a main control computer (12), and the driver (10) can trigger the sampling camera (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022355775.4U CN213239415U (en) | 2020-10-21 | 2020-10-21 | Quick optical axis alignment system of optical lens modulation transfer function detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022355775.4U CN213239415U (en) | 2020-10-21 | 2020-10-21 | Quick optical axis alignment system of optical lens modulation transfer function detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213239415U true CN213239415U (en) | 2021-05-18 |
Family
ID=75880794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022355775.4U Active CN213239415U (en) | 2020-10-21 | 2020-10-21 | Quick optical axis alignment system of optical lens modulation transfer function detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213239415U (en) |
-
2020
- 2020-10-21 CN CN202022355775.4U patent/CN213239415U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105530509B (en) | Four station camera module multiple spot automatic detection technology of parameter equipment | |
| CN110006905A (en) | A kind of ultra-clean smooth surface defect detecting device of heavy caliber that line area array cameras combines | |
| CN106855677A (en) | Dynamic automatic focus tracking system | |
| CN110542687A (en) | Detection device and detection method for appearance defects of microscopic elements | |
| CN110836641B (en) | Method and equipment for detecting three-dimensional size of special-shaped surface microstructure of part | |
| CN105445643A (en) | Full-automatic prober image positioning system | |
| CN109484012A (en) | A kind of write-through screen printing system and method with vision-based detection | |
| CN109470698B (en) | Cross-scale inclusion rapid analysis instrument and method based on photomicrography matrix | |
| CN205333535U (en) | Metal strainometer defect automatic check out system | |
| TW201837477A (en) | Probe card detection method and system capable of automatically detecting needle offset, needle missing, needle tip oxidization, wear, damage and melt, etc. on the whole area of a probe card | |
| CN213239415U (en) | Quick optical axis alignment system of optical lens modulation transfer function detection equipment | |
| CN212059883U (en) | AOI inspection machine for silk screen printing plate | |
| CN210075406U (en) | Automatic focusing device on detection module of rotary table detection machine | |
| CN210719640U (en) | Display type product detection equipment | |
| CN205246712U (en) | Full -automatic probe station image positioner | |
| CN216816427U (en) | Automatic focusing device for line scanning automatic optical detection system | |
| CN113432839B (en) | System and method for comprehensively testing image quality of low-light-level image intensifier | |
| KR101277205B1 (en) | Testing apparatus for an actuator for mobile phone | |
| CN116087222A (en) | Wafer dark field detection device and detection method | |
| CN112881431A (en) | Full-automatic intelligent test equipment for detecting printed circuit board | |
| CN114166754A (en) | Automatic focusing device for line scanning automatic optical detection system | |
| CN209505177U (en) | A kind of write-through screen printing system with vision-based detection | |
| CN113900270A (en) | Precision positioning equipment and automatic optical axis precision positioning method | |
| CN215575277U (en) | Automatic tester for FF module defocusing curve | |
| CN108562228B (en) | Automatic change continuous test equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |