Vibrating mirror-based spiral scanning laser projection method and system

A scanning laser and helical line technology, applied in the direction of optics, optical components, instruments, etc., can solve the problems of low vibration resistance, low projection resolution, complex algorithm, etc., to achieve small driving force, simple projection algorithm, and uniform projection screen Effect
CN108398779AActive Publication Date: 2018-08-14XI AN ZHISENSOR TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XI AN ZHISENSOR TECH CO LTD
Publication Date
2018-08-14

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Abstract

The invention belongs to the field of laser projection display and relates to a vibrating mirror-based laser projection display method and specifically relates to a vibrating mirror-based spiral scanning laser projection method and system. A vibrating mirror is enabled to perform resonance oscillation around two axes, a scanning trajectory is spirally scanned, and the scanning trajectory is used to realize projection. The vibrating mirror-based spiral scanning laser projection method and system can be used for solving problems of complex algorithms, low projection resolution, excessively low resonant frequency of the vibrating mirror, low vibration resistance vibration resistance and the like of conventional MEMS vibrating mirror-based laser projection display which is performed via a Lissajous Scanning and grating scanning method.
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Description

technical field

[0001] The invention belongs to the field of laser projection display, and relates to a laser projection display method based on a vibrating mirror, in particular to a helical scanning laser projection method and system based on a vibrating mirror. Background technique

[0002] In recent years, with the development of virtual reality (VR, Virtual Reality) and augmented reality (AR, Augmented Reality) technology, its application has entered various fields such as aviation, industry, medicine, education, entertainment, etc., and major manufacturers at home and abroad have launched A variety of VR and AR projection devices, among which the head-mounted display-based smart glasses attract the most attention. The main directions of projection display are: based on LCOS, OLED and other display imaging displays, such as Google Glass, Oculus Rift, Sony Project Morpheus, Samsung Gear VR , HTC Vive, etc.; based on DLP projection, such as Microsoft Hololens; the display...

Claims

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