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Birefringent crystal optical element surface deviation test system

A technology of birefringent crystals and optical components, applied in the direction of optical devices, measuring devices, instruments, etc., can solve the problems of system sensitivity, small measurement range, and difficult debugging, and achieve the effect of high speed and low cost

Active Publication Date: 2011-12-21
科纳技术(苏州)有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The more mature optical measurement methods used to test the surface deviation of optical components mainly include difference frequency method, scanning method, interference method, diffraction method, etc. The test resolution and measurement accuracy of these methods are very high, but there are also obvious deficiencies. , such as the system is sensitive and difficult to debug, has high requirements on the environment, and the measurement range is relatively small, etc.

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  • Birefringent crystal optical element surface deviation test system
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  • Birefringent crystal optical element surface deviation test system

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Embodiment Construction

[0012] In order to quickly and conveniently test the surface deviation of the optical element processed by the birefringent crystal, the invention provides a testing system capable of testing the surface deviation of the optical element processed by the birefringent crystal. The test method of the invention is simple and the test speed is fast, and is suitable for large enterprises to test the surface deviation of optical elements processed by batches of birefringent crystals. The surface shape deviation testing system includes a helium-neon laser and its support 1; a cylindrical lens and its support 2; a six-dimensional adjustment frame and a fixture 3 for the component under test; a first receiving screen 4; and a second receiving screen 5. The specific implementation of the surface shape deviation testing system will be described in detail below by taking a wedge-shaped prism processed by birefringent crystal as an example.

[0013] The specific implementation of this surfa...

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Abstract

The invention discloses a system capable of testing the surface shape deviation of an optical element which is formed by processing birefringent crystal. The system is constructed by a helium-neon laser and a cylindrical lens. The system has the advantages of low cost, simple test method, high test speed and the like and is applicable to test of the surface shape deviation of the optical element which is formed by processing a batch quantity of birefringent crystal by large-scale enterprises. By adoption of the system, the defects of sensitivity, difficulty in debugging, high requirement on environment, relatively smaller measurement range and the like of the conventional optical measurement system for the surface shape deviation of the optical element can be overcome; the speed of testing of the surface processing quality of the optical element in the industries of communication and instruments is greatly improved; and the quality, reliability and service life of a product are greatly influenced.

Description

technical field [0001] The invention relates to a test system for surface deviation of optical elements, in particular to a test system capable of testing the surface deviation of optical elements processed by birefringent crystals. The invention is widely applicable to various fields that require testing the surface deviation of birefringent crystal optical elements, especially suitable for large enterprises to test the surface deviation of optical elements processed by batches of birefringent crystals, with low cost and high speed. Background technique [0002] At present, more and more products in the fields of communication, instrumentation, and testing contain optical components, especially optical components processed by birefringent crystals. The surface processing quality of optical components, especially the surface deviation of optical components, is not only directly It affects the performance of optical components, and is also crucial to the quality, reliability ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24G01B11/26
Inventor 高尚武刘宏欣邹建兵刘华袁海骥
Owner 科纳技术(苏州)有限公司
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