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Ultraviolet optics instrument resolution tester

An optical instrument and resolution technology, which is applied in the field of detection devices for the resolution of ultraviolet optical instruments, can solve the problems of lack of evaluation methods for the imaging quality of ultraviolet optical instruments, and achieve the effects of suppressing the level of stray light and reducing design and processing costs.

Inactive Publication Date: 2010-06-09
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0003] The purpose of the present invention is to propose a resolution tester for ultraviolet optical instruments in order to solve a series of problems existing in the imaging quality of ultraviolet optical instruments due to the lack of effective evaluation means

Method used

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  • Ultraviolet optics instrument resolution tester

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Embodiment Construction

[0009] The structure of the present invention is described in further detail below in conjunction with the embodiments given in the accompanying drawings.

[0010] refer to figure 1 , a kind of ultraviolet optical instrument resolution tester, comprises deuterium lamp light source 1, mechanical variable diaphragm 2, quartz condenser 3, is connected by incident slit group mechanism 4, collimating reflector 5, and wavelength driving mechanism 18 A blazed grating 6, an imaging reflector 8, a plane reflector 9, an ultraviolet monochromator composed of an exit slit 10, an ultraviolet diffuse transmitter 11, an ultraviolet resolution plate 12, a two-dimensional adjustment platform 13, a turning plane reflector 14, a Spherical collimating mirror 15, optical rail 16, optical instrument platform 17 to be tested, image acquisition system 19 and computer 20, described deuterium light source 1 is imaged in 1:1 ratio by mechanical variable diaphragm 2, quartz condenser 3 On the incident s...

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Abstract

The invention relates to an ultraviolet optical instrument resolution tester, wherein, a deuterium lamp source forms an image on an incidence slit group mechanism of an ultraviolet monochromator by amechanical iris aperture and a quartz condensing-lens by the ratio of 1:1, ultraviolet light emitted by an exit slit of the ultraviolet monochromator evenly irradiates an ultraviolet diffuse transmission instrument which is tightly pressed together with an ultraviolet resolution plate by a fixture and is fixed on a two-dimensional adjusting platform behind the exit slit, through the diffuse transmission effect of the ultraviolet diffuse transmission instrument, part of the ultraviolet resolution plate is evenly illuminated and the ultraviolet resolution plate forms an infinite ultraviolet resolution target by a flat reflector and an aspheric collimator mirror; an optical instrument platform to be measured is placed on an optical guide rail with axis coinciding with an optical axis of a parallel light path. The tester adopts an aspheric surface to design a reflective collimator, and forms the infinite ultraviolet resolution target. The tester not only reduces costs of design and process, but also makes the best use of ultraviolet energy.

Description

technical field [0001] The invention belongs to an ultraviolet optical instrument image quality evaluation test instrument, in particular to a detection device for the resolution of an ultraviolet optical instrument. Background technique [0002] In the visible and infrared bands, the image quality evaluation methods of optical instruments mainly include optical transfer function method, star point method, resolution method and spot diagram method, while in the near ultraviolet band due to the lack of detection equipment for ultraviolet optical instruments, ultraviolet optical instruments The imaging quality and performance evaluation of the whole instrument can only be carried out in the visible light band, so there are certain errors and distortions in the measurement results. For optical systems with large aberrations, such as telephoto systems and photographic systems, the resolution will change significantly with the increase of aberrations, so the resolution test can d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
Inventor 王淑荣王加朋李福田
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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