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Galvanometer failure detection method and device

A detection method and technology for detection results, which are applied to measurement devices, measurement of electrical variables, measurement of current/voltage, etc., can solve the problems of low detection accuracy, large influence of subjectivity of inspection personnel, and inappropriate use of batch inspection, so as to improve the detection accuracy. Efficiency and subjectivity have little effect

Pending Publication Date: 2021-11-02
GOERTEK OPTICAL TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

However, the detection accuracy of this method is low, and the subjectivity of the inspectors is greatly affected, and it is not suitable for production line use and batch inspection.

Method used

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  • Galvanometer failure detection method and device
  • Galvanometer failure detection method and device
  • Galvanometer failure detection method and device

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Embodiment Construction

[0045] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0046] Please refer to figure 1 , figure 1 A flow chart of a vibrating mirror failure detection method provided in this embodiment, as shown in the figure, the method includes the following steps:

[0047] S100: Projecting light to the oscillating mirror to be tested during the vibration process of the oscillating mirror to be tested,...

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Abstract

The invention discloses a galvanometer failure detection method and device. The method comprises the steps: projecting light to a to-be-detected galvanometer in the vibration process of the to-be-detected galvanometer, and obtaining an image formed by the reflected light of the to-be-detected galvanometer; and obtaining a failure detection result of the to-be-detected galvanometer according to the image. Compared with the prior art, the method and the device have the advantages that it is avoided that a detector judges whether a galvanometer fails or not, the subjectivity influence of a detector is small, and the detection efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of optical devices, in particular to a vibrating mirror failure detection method and device. Background technique [0002] Optical machine is one of the important components in digital light processing (Digital Light Processing, DLP) projection system. In order to increase the image resolution, a vibrating mirror is used in the optomechanical system, and the single pixel of the image source is changed into multiple pixels through the swing of the lens. [0003] However, detecting whether the oscillation effect of the vibrating mirror is normal and whether the vibrating mirror is invalid has become a problem to be solved in the technical field. In the prior art, the laser reflection method is used to project the laser onto the galvanometer lens, and then project it onto the screen after reflection. When the galvanometer is not working, a laser point will be displayed on the screen; in the normal working mode...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00G01R19/00
CPCG01N27/00G01R19/00
Inventor 庞凤颖
Owner GOERTEK OPTICAL TECH CO LTD