Optics: image projectors – Composite projected image – Multicolor picture
Patent
1997-12-22
1999-08-31
Dowling, William
Optics: image projectors
Composite projected image
Multicolor picture
353 81, 359837, G03B 2114
Patent
active
059444010
ABSTRACT:
An optical block which is light in weight and low in price, and has optical path distances equivalent to those obtained with glass has an outside form composed by arranging a polyhedron 8a having a surface of incidence for a blue ray B, a polyhedron 8b having a surface of incidence for a red ray R and a polyhedron 8c having a surface of incidence for a green ray G which are configured as transparent plastic members, and optical members 9a and 9b configured as dichroic filters formed as glass members. The polyhedrons 8a to 8c are coupled by way of the optical members 9a and 9b so as to compose an optical block as a monochromator prism block.
REFERENCES:
patent: 4783156 (1988-11-01), Yokota
patent: 4850685 (1989-07-01), Kamakura et al.
patent: 4913528 (1990-04-01), Hasegawa et al.
patent: 5028121 (1991-07-01), Baur et al.
patent: 5446510 (1995-08-01), Mitsutake et al.
patent: 5610765 (1997-03-01), Colucci
patent: 5743610 (1998-04-01), Yajima et al.
patent: 5749641 (1998-05-01), Brice et al.
Iwaki Takaaki
Iwamura Atsushi
Murakami Kyoichi
Nakagawa Takeyo
Dowling William
Maioli Jay H.
Sony Corporation
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