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Two dimensional optical scanning apparatus and image display apparatus using the same

A technology of image display device and optical scanning device, which is applied in the direction of using projection device image reproducer, projection device, image communication, etc.

Inactive Publication Date: 2006-11-22
宋太善
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, this arrangement has the disadvantage that a polygon mirror with large mirror surfaces is required in the case of incident light rays entering the polygon mirror at a large angle of incidence

Method used

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  • Two dimensional optical scanning apparatus and image display apparatus using the same
  • Two dimensional optical scanning apparatus and image display apparatus using the same
  • Two dimensional optical scanning apparatus and image display apparatus using the same

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Embodiment Construction

[0022] Preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings, wherein like reference numerals refer to like elements throughout.

[0023] First refer to figure 1 and figure 2 The two-dimensional optical scanning device 10 according to the first embodiment of the present invention includes a cylindrical drum 300 rotated by a motor (not shown), and two linear light source units (No. A linear light source unit 100 and a second linear light source unit 100').

[0024] Each linear light source unit 100, 100' preferably has a plurality of light emitting elements 110, such as laser diodes or light emitting diodes (LEDs), arranged in rows to emit red, green, light and blue light. The linear light source unit 100 may have light emitting elements 110 arranged in a row, as shown in FIG. 3a. There may also be an array formed by two or more rows of light-emitting elements to obtain high resolution or high brightness, a...

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PUM

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Abstract

A two-dimensional optical scanning apparatus has a rotating body or a moving body that rotates endlessly. The apparatus has at least two linear light source units. The rotating body may be formed in a shape of a cylindrical drum. The moving body may have at least two cylindrical drums and an endless belt connected between the drums. Each linear light source unit is displaced on the rotating body or moving body to alternately project images with each other. The apparatus projects light in several directions so it is used in an image display apparatus with a plurality of screens.

Description

technical field [0001] The present invention relates to a two-dimensional light scanning device and an image display device using the same, and more particularly, to a two-dimensional light scanning device and an image display device using the same, in which a linear light source rotates or moves to two-dimensionally scanning beam. Background technique [0002] Recently, widescreen image display devices have become popular. Wide-screen image display devices can be classified into direct viewing types such as CRT devices, projection types such as LCD devices, and light scanning types. [0003] Direct-view CRT devices produce color images when their fluorescent surfaces are triggered by red / green / blue electron beams. For a CRT device, the electron beam is required to have a large travel distance between the electron gun and the fluorescent surface, which makes the CRT device bulky and heavy. Therefore, CRT devices are not suitable for wide-screen image display devices. [...

Claims

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Application Information

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IPC IPC(8): G02B26/12H04N5/74H04N9/31
CPCG03B21/006H04N5/74H04N9/3132H04N9/3147G02B26/12
Inventor 宋太善
Owner 宋太善