The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2006
Filed:
Oct. 28, 2003
Tetsuji Suzuki, Yokosuka, JP;
Tsutou Asakura, Odawara, JP;
Shogo Masuda, Hachioji, JP;
Terumi Ohara, Yokohama, JP;
Tetsuji Suzuki, Yokosuka, JP;
Tsutou Asakura, Odawara, JP;
Shogo Masuda, Hachioji, JP;
Terumi Ohara, Yokohama, JP;
Victor Company of Japan, Ltd., Kanagawa-Ken, JP;
Abstract
A color-separating and -recombining optical system provided between a light source and a projection lens in a projection display, has at least one prism assembly made up of at least two prisms bonded to each other with a bonding layer formed between the prisms. A white light emitted from the light source is divided into red-, green-, and blue-color light components related to primary colors. The light components are modulated by spatial light modulators in accordance with a video signal. The modulated light components are combined and projected onto a screen via the projection lens. The thickness of the bonding layer is varied as thin and thick for optical paths long and short, respectively, from the spatial light modulators to the bonding layer which each modulated light component emitted from the corresponding spatial light modulator reaches.