公开(公告)号：US20080049279A1

公开(公告)日：2008-02-28

申请号：US11837869

申请日：2007-08-13

申请人： Hideo YABUHARA ,  Manami YABUHARA ,  Tomohisa HAMANO ,  Mitsuru KITAMURA ,  Daijiro KODAMA ,  Hiroshi FUJITA

发明人： Hideo YABUHARA ,  Manami YABUHARA ,  Tomohisa HAMANO ,  Mitsuru KITAMURA ,  Daijiro KODAMA ,  Hiroshi FUJITA

IPC分类号： G03H1/08

CPC分类号： G02B5/0252 ,  G02B5/1861 ,  G02B5/32 ,  G02F1/133371 ,  G02F1/133553 ,  G03H1/0244 ,  G03H1/08 ,  G03H1/24 ,  G03H2001/0816 ,  G03H2001/0825 ,  G03H2001/085 ,  G03H2001/2265 ,  G03H2001/306 ,  G03H2260/63

摘要： The invention provides a computer-generated hologram which can be viewed in white at the desired viewing region and a reflective liquid crystal display using the same as a reflector. The computer-generated hologram H is designed to diffuse light having a given reference wavelength λSTD and incident thereon at a given angle of incidence θ in a specific angle range. In a range of wavelengths λmin to λmax including the reference wavelength λSTD wherein zero-order transmission light or zero-order reflection light of incident light on the computer-generated hologram at a given angle of incidence is seen in white by additive color mixing, the maximum diffraction angle β2MIN of incident light of the minimum wavelength λMIN in the wavelength range and incident at the angle of incidence θ is larger than the minimum diffraction angle β1MAX of incident light of the maximum wavelength λMAX in the wavelength range and incident at said angle of incidence θ.

摘要翻译： 本发明提供了一种计算机生成的全息图，其可以在期望的观看区域以白色观看，而反射型液晶显示器使用其作为反射器。 计算机产生的全息图H被设计成以特定角度范围内以给定的入射角θ散射具有给定参考波长λSTD＆lt;＆lt;＆gt;的光。 在波长λλmin至λmax范围内，包括参考波长λSTD <0>其中零级透射光或零级反射光 以给定的入射角计算机产生的全息图上的入射光通过加色混合在白色中看到，最小波长λ的入射光的最大衍射角β2 MIN / 在入射角θ入射的波长范围内的大小比波长范围内最大波长λMAX MAX的入射光的最小衍射角β1MAX < 并以所述入射角θ入射。