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Light pipe,color illumination system adopting the light pipe,and projection system

A technology of projection system and light guide tube, applied in the field of projection system, can solve the problems of reduced image quality, inconsistent color scrolling speed, difficult control synchronization, etc.

Inactive Publication Date: 2006-06-07
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, controlling synchronization is not easy
In addition, the rolling of prisms 114, 135, and 142 is a circular motion, and the color rolling speeds of the three rolling prisms are inconsistent, thus reducing the image quality

Method used

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  • Light pipe,color illumination system adopting the light pipe,and projection system
  • Light pipe,color illumination system adopting the light pipe,and projection system
  • Light pipe,color illumination system adopting the light pipe,and projection system

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Embodiment Construction

[0055] FIG. 3 shows the optical structure of the color lighting system based on the first embodiment of the present invention and the optical structure of the projection system based on the first embodiment of the invention using the color lighting system. Referring to FIG. 3 , the color lighting system according to the first embodiment of the present invention includes a light source 60 , a light pipe 70 , a first focusing lens 85 and a scroll unit 90 . The light pipe 70 separates the light emitted from the light source 60 by wavelength range. The first focusing lens 85 focuses the light beams split by the light pipe 70 . The scrolling unit 90 forms color stripes by changing propagation paths of split beams of different wavelength ranges, and scrolls the incident split beams to periodically scroll the color stripes.

[0056] The light source 60 generates and emits white light, and includes a bulb 61 generating the light, and a reflector 63 reflecting the light emitted from t...

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Abstract

The present invention provides a light guide that separates incident light according to color, a color lighting system using the light guide, and a projection system using the color lighting system. Because the projection system is a single-panel projection system using a rolling unit, its optical structure is simplified. In addition to this, the projection system's light pipe is composed of color separation units of different sizes, thereby improving the color gamut and color temperature. In addition, the light pipe includes color-selective polarizers that each change the polarization direction of a color beam of a specific wavelength, thereby increasing light efficiency.

Description

[0001] This application is a divisional application of an invention patent application titled "Light Guide, Color Illumination System Using It, and Projection System" with an application date of December 21, 2003 and an application number of 200310109785.8. technical field [0002] The present invention relates to a light pipe for improving light efficiency and small size by color-separating incident light without loss and rolling the dichromatic light beam, and to a color lighting system using the light pipe And a projection system using the colored lighting system. Background technique [0003] According to the number of light valves, the projection system is divided into a three-panel projection system and a single-panel projection system. The light valve controls the on-off of the light emitted by the high-output bulb on the pixel array substrate to form an image. A single-panel projection system has a smaller optical system than a three-panel projection system, but beca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/10G03B33/12G02B3/10G02B27/28G03B21/00G03B21/14
CPCG02B27/285G03B33/12H04N9/3117H04N9/3197
Inventor 金成河赵虔皓金大式李羲重
Owner SAMSUNG ELECTRONICS CO LTD
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