CN114397091A - Automatic test method of optical waveguide module - Google Patents
Automatic test method of optical waveguide module Download PDFInfo
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- CN114397091A CN114397091A CN202111478743.6A CN202111478743A CN114397091A CN 114397091 A CN114397091 A CN 114397091A CN 202111478743 A CN202111478743 A CN 202111478743A CN 114397091 A CN114397091 A CN 114397091A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 34
- 238000010998 test method Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000016507 interphase Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The invention discloses an automatic test method of an optical waveguide module, which comprises the following steps: s1: placing the optical waveguide product to be tested and the image acquisition device into a dark box, and enabling the image acquisition device to be over against the optical waveguide product to be tested; s2: controlling the optical waveguide product to display black and white alternate images; s3: the image acquisition device shoots and acquires image information of each scene of a black-and-white alternate image and sends the image information to the background control system; s4: and the background control system calculates the brightness of white dots in the black-white alternating image according to the image information to obtain an analysis report. The automatic test method of the optical waveguide module provided by the invention replaces manual judgment, improves the test efficiency, and quantifies the test result and the test standard.
Description
Technical Field
The invention relates to the technical field of test methods, in particular to an automatic test method of an optical waveguide module.
Background
The existing automatic test method of the optical waveguide module has the following defects:
a. the test is judged manually, and no quantization standard exists;
b. the efficiency is low, and the test item results cannot be subdivided;
c. no test report was made.
Disclosure of Invention
The invention mainly solves the technical problem of providing an automatic test method of an optical waveguide module, which replaces manual judgment, improves the test efficiency, quantifies the test result and the test standard, and can generate a test report for tracing.
In order to solve the technical problems, the invention adopts a technical scheme that: the automatic test method of the optical waveguide module is provided, and comprises the following steps:
an automatic test method of an optical waveguide module comprises the following steps:
s1: placing the optical waveguide product to be tested and the image acquisition device into a dark box, and enabling the image acquisition device to be over against the optical waveguide product to be tested;
s2: controlling the optical waveguide product to display black and white alternate images;
s3: the image acquisition device shoots and acquires image information of each scene of a black-and-white alternate image and sends the image information to the background control system;
s4: and the background control system calculates the brightness of white dots in the black-white alternating image according to the image information to obtain an analysis report.
In a specific embodiment of the present invention, the image capturing device is a camera, and captures black and white images in different scenes.
In a specific embodiment of the present invention, the scenes include a full bright picture scene and a full black picture scene.
In a specific embodiment of the invention, the background control system controls the optical waveguide product to be tested to alternately display a full bright picture scene and a full black picture scene, the camera shoots a picture, and white point brightness information in the full bright picture scene and white point brightness information in the full black picture scene are analyzed and calculated.
In a specific embodiment of the present invention, the black-and-white alternating image is a nine-white dot image with black matrix.
In one embodiment of the present invention, the black-and-white interphase image is a sixteen-grid black-and-white interphase picture.
The invention has the beneficial effects that: the automatic test method of the optical waveguide module replaces manual judgment, improves test efficiency, quantifies test results and test standards, and can store collected images and generate test reports for tracing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention comprises the following steps: an automatic test method of an optical waveguide module comprises the following steps:
s1: placing the optical waveguide product to be tested and the image acquisition device into a dark box, and enabling the image acquisition device to be over against the optical waveguide product to be tested;
s2: controlling the optical waveguide product to display black and white alternate images;
s3: the image acquisition device shoots and acquires image information of each scene of a black-and-white alternate image and sends the image information to the background control system;
s4: and the background control system calculates the brightness of white dots in the black-white alternating image according to the image information to obtain an analysis report.
In a specific embodiment of the present invention, the image capturing device is a camera, and captures black and white images in different scenes.
Specifically, the scenes comprise a full bright picture scene and a full black picture scene, the background control system controls the optical waveguide product to be tested to alternately display the full bright picture scene and the full black picture scene, the camera shoots the picture, and white point brightness information under the full bright picture scene and white point brightness information under the full black picture scene are analyzed and calculated.
Specifically, the black-white interphase image is a nine-white-dot picture with a black matrix or a sixteen-grid black-white interphase picture.
The operation flow is as follows:
the method comprises the following steps: placing the optical waveguide to be tested into a clamp in a dark box, and starting up the camera after the waveguide is aligned with the camera;
step two: controlling the optical waveguide to display a black-bottom nine-white point diagram through a computer;
step three: the computer controls the camera to take pictures and calculates the brightness of nine white points at fixed positions;
step four: the computer controls the optical waveguide to display two pictures of full brightness and full black, then the computer controls the camera to take the picture, and the picture is analyzed to calculate the brightness under a white field and the brightness under a dark background;
step five: and controlling the optical waveguide to display sixteen-lattice black and white interphase pictures by the computer, then controlling the camera to shoot pictures by the computer, analyzing the average value of the brightness of the eight white areas and the average value of the eight black areas, and calculating the contrast ratio of ANSI.
The invention has the beneficial effects that: the automatic test method of the optical waveguide module replaces manual judgment, improves test efficiency, quantifies test results and test standards, and can store collected images and generate test reports for tracing.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. An automatic test method of an optical waveguide module is characterized by comprising the following steps:
s1: placing the optical waveguide product to be tested and the image acquisition device into a dark box, and enabling the image acquisition device to be over against the optical waveguide product to be tested;
s2: controlling the optical waveguide product to display black and white alternate images;
s3: the image acquisition device shoots and acquires image information of each scene of a black-and-white alternate image and sends the image information to the background control system;
s4: and the background control system calculates the brightness of white dots in the black-white alternating image according to the image information to obtain an analysis report.
2. The automatic test method for the optical waveguide module according to claim 1, wherein the image acquisition device is a camera, and the camera shoots and acquires black and white images in different scenes.
3. The method according to claim 2, wherein the scenes comprise a full bright picture scene and a full black picture scene.
4. The automatic test method of the optical waveguide module as claimed in claim 3, wherein the background control system controls the optical waveguide product to be tested to alternately display a full bright picture scene and a full black picture scene, the camera takes a picture, and white point brightness information in the full bright picture scene and white point brightness information in the full black picture scene are analyzed and calculated.
5. The method of claim 1, wherein the black and white image is a black matrix nine-dot image.
6. The method according to claim 1, wherein the black-and-white image is a sixteen-grid black-and-white picture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111478743.6A CN114397091A (en) | 2021-12-07 | 2021-12-07 | Automatic test method of optical waveguide module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111478743.6A CN114397091A (en) | 2021-12-07 | 2021-12-07 | Automatic test method of optical waveguide module |
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| Publication Number | Publication Date |
|---|---|
| CN114397091A true CN114397091A (en) | 2022-04-26 |
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| CN202111478743.6A Pending CN114397091A (en) | 2021-12-07 | 2021-12-07 | Automatic test method of optical waveguide module |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4583857A (en) * | 1982-02-06 | 1986-04-22 | International Business Machines Corporation | Apparatus for automatic optical property testing |
| DE10317078A1 (en) * | 2003-04-11 | 2004-10-21 | Universität Karlsruhe (TH) Institut für Mess- und Regelungstechnik | Reflective surface analysis method for inspecting/checking a reflective shiny mirror-like surface moves/changes an existing or created pattern to produce images on a surface at different times |
| CN1707238A (en) * | 2004-06-09 | 2005-12-14 | 上海迪比特实业有限公司 | Method for testing resolution ratio of camera head |
| CN101027589A (en) * | 2004-09-27 | 2007-08-29 | Idc公司 | Systems and methods for measuring color and contrast in specular reflective devices |
| US20150146195A1 (en) * | 2013-11-22 | 2015-05-28 | Vario-Optics Ag | Test Apparatus For Electro-Optical Printed Circuit Boards |
| CN108474737A (en) * | 2015-11-04 | 2018-08-31 | 奇跃公司 | Light Field Display Metrics |
| CN108982063A (en) * | 2018-06-15 | 2018-12-11 | 深圳市慧康精密仪器有限公司 | A kind of test method and device of planar optical waveguide device insertion loss |
| CN109405752A (en) * | 2017-06-05 | 2019-03-01 | 大塚电子株式会社 | Optical measuring device and measuring method |
-
2021
- 2021-12-07 CN CN202111478743.6A patent/CN114397091A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4583857A (en) * | 1982-02-06 | 1986-04-22 | International Business Machines Corporation | Apparatus for automatic optical property testing |
| DE10317078A1 (en) * | 2003-04-11 | 2004-10-21 | Universität Karlsruhe (TH) Institut für Mess- und Regelungstechnik | Reflective surface analysis method for inspecting/checking a reflective shiny mirror-like surface moves/changes an existing or created pattern to produce images on a surface at different times |
| CN1707238A (en) * | 2004-06-09 | 2005-12-14 | 上海迪比特实业有限公司 | Method for testing resolution ratio of camera head |
| CN101027589A (en) * | 2004-09-27 | 2007-08-29 | Idc公司 | Systems and methods for measuring color and contrast in specular reflective devices |
| US20150146195A1 (en) * | 2013-11-22 | 2015-05-28 | Vario-Optics Ag | Test Apparatus For Electro-Optical Printed Circuit Boards |
| CN108474737A (en) * | 2015-11-04 | 2018-08-31 | 奇跃公司 | Light Field Display Metrics |
| CN109405752A (en) * | 2017-06-05 | 2019-03-01 | 大塚电子株式会社 | Optical measuring device and measuring method |
| CN108982063A (en) * | 2018-06-15 | 2018-12-11 | 深圳市慧康精密仪器有限公司 | A kind of test method and device of planar optical waveguide device insertion loss |
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