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Projection system capable of changing effect of environment on picture dispaly

A technology of screen display and projection system, used in optics, instruments, projection devices, etc.

Inactive Publication Date: 2008-12-17
CHUNGHWA PICTURE TUBES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stray light outside the light-splitting component is also one of the factors that cause light leakage in the dark field and cannot be improved by the above-mentioned light-splitting component

Method used

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  • Projection system capable of changing effect of environment on picture dispaly
  • Projection system capable of changing effect of environment on picture dispaly
  • Projection system capable of changing effect of environment on picture dispaly

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Embodiment Construction

[0013] refer to figure 2 , is a partial structural diagram of the projection system of the present invention. The light is emitted by the light source 10 , passes through the light source assembly 12 , splits and combines the light assembly 14 , and enters the lens assembly 16 . According to the spirit of the present invention, a reflection device 18 is provided between the light splitting assembly 14 and the lens assembly 16 . In the first embodiment, the reflective device 18 can be a reflective material attached to the optical splitting assembly 14, for example, silver or aluminum and other reflective materials are plated on the surface of the optical assembly of the optical splitting assembly 14 facing the lens assembly 16 , in this embodiment, the optical component may be a polarization beam splitter, a filter, or a polarizer.

[0014] In a second embodiment, the reflective device 18 can be a reflective material attached to the surface of the lens assembly 16 that recei...

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PUM

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Abstract

This invention relates to one projection system to change environment picture display impact, which sets the reflection parts onto separate light parts and lens parts to reflect the outside light from lens parts into separate parts to change picture display dark brightness to optimize picture display comparison.

Description

technical field [0001] The present invention relates to a system for changing the comparison picture of projection equipment, and in particular provides a projection system for changing the influence of environment on picture display. Background technique [0002] Products that combine displays and projectors are one of the focuses of technological development in recent years, such as liquid crystal display projectors, digital optical processing projectors (Digital Lght Processing, DLP) or silicon liquid crystal projectors (Liquid Crystal on Silicon, LCOS), etc. Wait. [0003] Generally speaking, the structure of a projection system mainly includes a light source component, a light splitting component and an imaging system. refer to figure 1 , the traditional split-combination component ("ght management) mainly includes green / purple (Green / Magenta) filter 110, red / blue (Red / Blue) filter 112 (filter), polarization beam splitter (Polarization BeamSplitter , PBS) 114, 116, 1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/10G03B21/00G02B5/00
Inventor 陈宏纬吴世民莫启能
Owner CHUNGHWA PICTURE TUBES LTD