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发明授权
CN106662800B 投射装置和照明装置 失效 - 权利终止

投射装置和照明装置
摘要：
本发明能够简化光学系统的结构，并且能够提升相干光的利用效率。投射装置(1)具有：光学元件(2)，其扩散相干光；照射装置(3)，其向光学元件照射相干光；色生成器(4)，其以时分方式来进行被由光学元件扩散的相干光进行照明的第1被照明区域内的光的波长变换和透过；一个以上的中继光学系统(5)，其改变通过色生成器进行了波长变换的光的行进方向和透过了色生成器的光的行进方向，生成对第2被照明区域进行照明的照明光；光调制器(8)，其根据第2被照明区域的照明光生成调制图像；以及投射光学系统(9)，第1被照明区域和第2被照明区域处于光学共轭关系，色生成器具有透过部，该透过部使由光学元件扩散的相干光不扩散地透过。
摘要（英）：

A projection apparatus 1 is provided with an optical device 2 to diffuse a coherent light beam, an irradiation unit 3 to irradiate a coherent light beam to the optical device, a color generator 4 to perform wavelength conversion of and transmission of light beams in a first illumination zone, in a time division manner, at least one relay optical system 5 to change a travel direction of the wavelength-converted light beam and a travel direction of a light beam to generate an illumination light beam which illuminates a second illumination zone, a spatial light modulator 8 to generate a modulated image to the second illumination zone, and a projection optical system 9. The first illumination zone and the second illumination zone have a conjugate relationship. The color generator has a transmission portion to transmit the diffused coherent light beam, without diffusing the diffused coherent light beam.

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