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公开时间: 2008-08-21      申请时间: 2007-02-08
申请人: TOPPAN PRINTING CO LTD

JP2008191612A



标题(英语)

COLOR SEPARATION DEVICE


摘要(英语)

PROBLEM TO BE SOLVED: To provide a color separation device in which white light is separated into colors with a combination of transparent, thin and light optical members and which is used for back light of a liquid crystal display.

SOLUTION: The white light emitted from a white light source 100 is transformed into parallel light with a parallel light transformation optical member 102, and made incident to a first color separation plate 102. The incident white light is separated into light having wavelength 1, which is diffracted with a Dammann type diffraction grating 401 of the first color separation plate 102, light having a wavelength 2and passes without being diffracted, and a light having wavelength 3which is diffracted in the opposite direction of the light having the wavelength 1. The color-separated light beams, having the wavelengths 1, 2and 3, are made parallel with Dammann-type diffraction gratings 402 and 403 of a second color separation plates 103 and emitted from a second color separation plate 103.

COPYRIGHT: (C)2008,JPO&INPIT


申请人详细信息

序号 名称 数据格式
1 TOPPAN PRINTING CO LTD docdb

发明人详细信息

序号 名称 数据格式
1 MINATO TAKAO docdb

法律状态

序号 日期 法律代码 详细信息

文档历史

公开时间: 2008-08-21
JP2008191612A
申请时间: 2007-02-08
JP2007028748

CPC分类


IPC分类

G02B5/20

专利家族

39751731

被引非专利信息

引用阶段 文档类型 文档信息

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