Lens unit and projection screen made of the same

Optical: systems and elements – Projection screen – Unitary sheet comprising plural refracting areas

Reexamination Certificate

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C359S455000, C359S449000, C359S443000, C359S627000

Reexamination Certificate

active

08049961

ABSTRACT:
A lens unit and a projection screen made of the same are disclosed. The lens unit includes a micro lens having a light incident surface and a light emergent surface opposing to the light incident surface; a light absorbing layer formed on the light emergent surface of the micro lens and having a cavity formed therein; a scattering layer formed in the cavity of the light absorbing layer and including a transparent resin blended with scattering particles; and a reflective layer formed on the light absorbing layer and the scattering layer. The projection screen includes a plurality of the lens units, thereby achieving high contrast and high energy utilization efficiency of incident light with a large viewing angle.

REFERENCES:
patent: 1942841 (1934-01-01), Takeo Shimizu
patent: 3704055 (1972-11-01), Hong
patent: 4298246 (1981-11-01), Iwamura
patent: 5096278 (1992-03-01), Yoshioka et al.
patent: 5870224 (1999-02-01), Saitoh et al.
patent: 6144491 (2000-11-01), Orikasa et al.
patent: 6829086 (2004-12-01), Gibilini
patent: 7102819 (2006-09-01), Chang
patent: 7453635 (2008-11-01), Yeo et al.
patent: 7667893 (2010-02-01), Peterson et al.
patent: 2006/0103930 (2006-05-01), Peterson
patent: 2010/0103513 (2010-04-01), Chuang et al.
patent: 293887 (1996-12-01), None

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