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Transmittance ratio test system for folding-shaft periscopic telescope optical system

An optical system and testing system technology, which is used in optical instrument testing, machine/structural component testing, and optical performance testing, etc., to improve the accuracy of transmittance testing, reduce impact, and eliminate the impact of ambient stray light.

Inactive Publication Date: 2008-04-16
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

As mentioned above, the optical axis of the optical system is not a straight line, and its optical axis is deflected by optical elements such as prisms, mirrors, and beam splitters, so that the incident light and outgoing light of the telephoto system are not on a straight line , there is no system for transmittance testing specifically for such a folding axis / periscope optical system

Method used

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  • Transmittance ratio test system for folding-shaft periscopic telescope optical system
  • Transmittance ratio test system for folding-shaft periscopic telescope optical system
  • Transmittance ratio test system for folding-shaft periscopic telescope optical system

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Embodiment Construction

[0021] Folding axis / periscope optical system transmittance test system includes four main components: light source assembly, transmitting unit, receiving unit and control processing unit. Such as image 3 As shown, the transmitting unit 13 includes a light source, a modulation disc, a beam splitter and an electric shutter. After the light emitted by the light source is loaded with an AC signal through the modulation disc, it is divided into two paths of light by the beam splitter, and is output by two optical fibers. The beam splitter and the optical fiber An electric shutter is installed between them, and the control processing unit realizes the conversion of two paths of light by controlling the electric shutter. The control processing unit and its components are all installed in the cabinet 14, because the control processing unit and the power supply assembly need to be electrically connected, and also need to be electrically connected between the receiving unit (integratin...

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Abstract

A folding axis / periscope telescope optical system transmission ratio measurement system includes: 1) light source component, including the light source and modulation wheel; 2) launching unit, including parallel tubes and changeable diaphragm; 3) receiving unit, including integral ball and photomultiplier tube for detecting incident light energy ; 4) control processing unit, including lock phase amplifier, analog-digital conversion circuit, SCM and display; its characteristic is that the launching unit and receiving unit are made to separate structure, and each separate structure can be independently lifted or pitching adjusted to meet the testing requirements of the folding axis telescope optical system transmission ratio; to improve the measurement precision, the system uses two optical paths method, to a certain extent, excluding the signal drift of the light source, detector, high-voltage power supply, amplifier and other components, and after a 100% calibration, it can process measurement in a long time.

Description

technical field [0001] The invention relates to a system for testing the projection ratio of an optical instrument, in particular to a system for testing the visible light transmittance of a folding axis / periscope optical system, and belongs to the technical field of photometric testing. Background technique [0002] In the Gaussian telescopic optical system, prisms are often used for image inversion. When designing the instrument system, the telescopic system often needs to bend the optical axis to reduce the volume of the instrument. The sighting equipment in tanks, submarines and other equipment must have a telescope. Features. As mentioned above, the optical axis of the optical system is not a straight line, and its optical axis is deflected by optical elements such as prisms, mirrors, and beam splitters, so that the incident light and outgoing light of the telephoto system are not on a straight line , there is no system for transmittance testing specifically for such a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/00G01M11/02
Inventor 沙定国张喆民何川林家明周桃庚陈凌峰张旭升
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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