Micro projector based on pure laser optics engine

An optical engine and projector technology, applied in optics, instruments, projection devices, etc., can solve the problems of increasing the size of the projector, low luminous flux, and high design difficulty, so as to solve the problem of heat dissipation, reduce the volume of the optical machine, and reduce the amount of light. Loss of effect
CN106324968AInactive Publication Date: 2017-01-11SICHUAN CHANGHONG ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SICHUAN CHANGHONG ELECTRIC CO LTD
Publication Date
2017-01-11
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a micro projector based on pure laser optics engine, comprising a projection lens A, a heat dissipation copper plate A, a red laser light source A, a green laser light source A, a blue laser light source A, an X prism A, a white light reflector, a TIR (Total Internal Reflection) prism, and a DLP (Digital Light Processing) light modulator A. With a compact structure, the micro projector is reduced in volume; the pure three-color lasers are adopted and light transfer efficiency reduction possibly occurring due to the small volume is prevented, thereby effectively reducing light energy loss. Beside a radiator is together used by three-color lasers, a heat dissipation problem of a light supply device is successfully solved and practicability of an optical engine module is increased in the micro projector. Moreover, the optical engine part of the pure laser micro projector is changed, the lens especially for the non-spherical lens is reduced in use, and the volume and the cost are reduced, so that the price of the projector is approximate to the mass consumption level and the micro project is more likely to have a considerable market.
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Description

technical field

[0001] The invention relates to the technical field of digital micro-projection display, in particular to a micro-projector based on a pure laser optical engine. Background technique

[0002] Micro projectors are also called pocket projectors and portable projectors. The miniature projector makes the traditional huge projector compact, portable, miniaturized, entertaining, and practical, making projection technology closer to life and entertainment. Driven by the strong demand of the majority of users, the pico projector technology has developed rapidly in recent years. DLP, LCOS and other products have launched portable handheld pico projector products (PICO), or projector models built into handheld mobile devices such as mobile phones. Group. Compared with traditional LCD and LCOS projectors, DLP projection products are favored by consumers because of their greater advantages in lumen brightness, video image display and contrast.

[0003] For the existin...

Claims

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