Optical: systems and elements – Polarization without modulation – By relatively adjustable superimposed or in series polarizers
Patent
1989-10-19
1991-12-24
Arnold, Bruce Y.
Optical: systems and elements
Polarization without modulation
By relatively adjustable superimposed or in series polarizers
359 63, 358 61, 353 31, 353 34, G02F 113, G02B 2728
Patent
active
050757989
ABSTRACT:
A projection-type display device having a single light source which produces light. A first dichroic mirror group receives the light and separates it into colored light. A transmissive light valve system modulates the colored light and a second dichroic mirror group synthesizaes the modulated colored light. A projection system projects the synthesized colored light onto a screen.
REFERENCES:
patent: 3840695 (1974-10-01), Fischer
patent: 4191456 (1980-03-01), Hong et al.
patent: 4425028 (1984-01-01), Gagnon et al.
patent: 4461542 (1984-07-01), Gagnon
patent: 4500172 (1985-02-01), Gagnon et al.
patent: 4506956 (1985-03-01), Dir
patent: 4544237 (1985-10-01), Gagnon
patent: 4650286 (1987-03-01), Koda et al.
patent: 4715684 (1987-12-01), Gagnon
patent: 4836649 (1989-06-01), Ledebuhr et al.
Gooch et al., "Optical Characteristics of Twisted Nematic Liquid-Crystal Films"; Electronics Letters, vol. 10, No. 1, Jan. 10, 1974; pp. 2-4.
Jacobson, et al.; "A New Color-TV Projector", pp. 106-07; SID 77 Digest.
Aruga Shuji
Morozumi Shinji
Sonehara Tomio
Arnold Bruce Y.
Kaplan Blum
Parsons David R.
Seiko Epson Corporation
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