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Current Developments in Optical Engineering and Commercial Optics | 1989

New Optical System For Projection TV With Very Short Projection Distance

Kyohei Fukuda; Kouji Hirata; Hiroki Yoshikawa; Masayuki Muranaka; Isao Yoshizaki

The projection TV of high picture quality and short depth, has been developed, using the new optical system with short projection distance which has been realized by plastic and glass hybrid lens and aspherical phosphor screen.


Archive | 1990

Rear projection screen and method of producing the same

Takahoko Yoshida; Masayuki Muranaka; Hiroki Yoshikawa; Koji Hirata; Isao Yoshizaki; Masakuni Teratani; Nobuhiro Konuma


Archive | 1992

Rear-projection screen and a rear projection image display employing the rear-projection screen

Takahiko Yoshida; Koji Hirata; Hiroki Yoshikawa; Masayuki Muranaka; Isao Yoshizaki; Atsuo Osawa


Archive | 1994

Ultra-wide angle liquid crystal projector system

Hideo Tanide; Masayuki Muranaka; Shigeru Mori; Kiyoshi Wada; Isao Yoshizaki; Naoyuki Ogura


Archive | 1991

Temperature compensating lens system for projection television

Koji Hirata; Hiroki Yoshikawa; Tooru Numata; Kiyoshi Wada; Masayuki Muranaka; Isao Yoshizaki; Takahiko Yoshida; Shigeru Inaoka


Archive | 1990

Optical system for projection type image display device

Takahiko Yoshida; Hiroki Yoshikawa; Shigeru Mori; Koji Hirata; Tooru Numata; Isao Yoshizaki; Mitsuo Okimoto


Archive | 1988

Projection lens system

Koji Hirata; Kyohei Fukuda; Hiroki Yoshikawa; Shigeru Mori; Masayuki Muranaka; Isao Yoshizaki; Shigeru Inaoka; Hiroshi Jitsukata


Archive | 1984

Coupling system for image projection

Shobu Saito; Isao Yoshizaki; Yoshiaki Iwahara; Masanori Oguino; Osamu Shuugizono


Archive | 1990

Video projector with optical color balance

Koji Hirata; Hiroki Yoshikawa; Takahiko Yoshida; Tooru Numata; Masayuki Muranaka; Kiyoshi Wada; Isao Yoshizaki; Shigeru Inaoka


Archive | 1989

Projection type image display device and its lens

Koji Hirata; Shigeru Inaoka; Takahiko Yoshida; Hiroki Yoshikawa; Isao Yoshizaki

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