Optical: systems and elements – Holographic system or element – For synthetically generating a hologram
Reexamination Certificate
2006-05-30
2006-05-30
Robinson, Mark A. (Department: 2872)
Optical: systems and elements
Holographic system or element
For synthetically generating a hologram
C430S002000
Reexamination Certificate
active
07054044
ABSTRACT:
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 λSTDand incident thereon at a given angle of incidence θ in a specific angle range. In a range of wavelengths λMINto λMAXincluding the reference wavelength λSTDwherein 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 β2MINof incident light of the minimum wavelength λMINin the wavelength range and incident at the angle of incidence θ is larger than the minimum diffraction angle β1MAXof incident light of the maximum wavelength λMAXin the wavelength range and incident at said angle of incidence θ.
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Fujita Hiroshi
Hamano Tomohisa
Kitamura Mitsuru
Kodama Daijiro
Yabuhara, legal representative Manami
Amari Alessandro
Dai Nippon Printing Co. Ltd.
Robinson Mark A.
Sughrue & Mion, PLLC
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