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Externally-connected light path of projector optical fiber

A technology of projectors and micro-projectors, which is applied in the coupling of optical waveguides, etc., can solve the problems of low brightness of light sources, and achieve satisfactory brightness, mobile portability, and simple optical structure design

Inactive Publication Date: 2009-12-16
王晶
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] In order to overcome the shortcomings of the existing miniature projectors such as low light source brightness, the present invention provides an optical fiber external optical path for the projector. The projector can be designed to use 1 to N miniature built-in light sources. Projector brightness meets professional requirements

Method used

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  • Externally-connected light path of projector optical fiber
  • Externally-connected light path of projector optical fiber

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Embodiment Construction

[0010] exist figure 1 Among them, in addition to the built-in light source on the micro projector, there is an external light source adapter with the same optical path to connect to the external light source. Built-in LED miniature built-in light source (1) outside design focusing light cone (2) or design the appearance of LED miniature light source as a focusing light source, the focal point of the light source is respectively connected to the optical fiber bundle, the optical fiber bundle (3) has branches, one of the optical fiber The bundle is connected to the focusing light cone (6) and the external light source adapter (7), and all the optical fiber bundles are irregularly arranged into one bundle, and the projection section at the end is the same as that of the prism (4) or the liquid crystal chip (5), so that the light Evenly projected onto the projector prism (4) and the liquid crystal chip (5).

[0011] exist figure 2 Among them, the light from the built-in LED min...

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Abstract

The invention relates to an externally-connected light path of a projector optical fiber, in particular to an externally-connected light path of a projector optical fiber, which can provide external light source for a minitype projector. Except for an internal light source, the minitype projector is also provided with an external light source transform interface in a same light path to be connected with an external light source. The design can use one to N minitype internal light sources, and is conveniently carried; the light path can be externally connected with a high-brightness external light source as required so as to enable the brightness of the minitype projector to meet the professional requirements. The structure has simple design and low cost.

Description

Technical field [0001] The invention relates to a projector optical fiber external optical path, in particular to a projector optical fiber external optical path that can provide an external light source for a micro projector. Background technique [0002] At present, micro projectors start to use LED miniature light sources in order to reduce the volume, but due to the limitation of the light source brightness, the projection brightness and lumens are very small. If multiple LED light source arrays are used, the volume of the projector will be increased, and the lens design will be complicated. Special projectors The brightness requirement is very high, so the micro-projector with LED light source cannot meet the brightness requirement of the light source, which limits its use. Contents of the invention [0003] In order to overcome the shortcomings of the existing miniature projectors such as low light source brightness, the present invention provides an optical fiber ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/26G02B6/34
Inventor 王晶
Owner 王晶
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