Title:
【発明の名称】投写型表示装置
Document Type and Number:
Japanese Patent JP3065081
Kind Code:
B1
Abstract:
In an illumination optical system; a wavelength separating optical system; plural light modulation devices provided respectively so as to modulate the light in the plural wavelength regions according to a given image signal; a light synthesizing optical system for synthesizing the light modulated by the plural light modulation devices; a projection optical system for projecting the synthesized light emitted; and a reflecting mirror placed in the optical path. Light with a wavelength of approximately 425 nm is separated by the wavelength separating optical system and enters a corresponding light modulation device. The reflecting mirror has a reflectance of approximately 90% or more, for light in the wavelength region of approximately 435 nm or more, and a reflectance for light in the wavelength region of at least 425 nm±5 nm, that is lower than the reflectance for the light in the wavelength region of approximately 435 nm or more.
Inventors:
Kazuo Aoki
Application Number:
JP25374499A
Publication Date:
July 12, 2000
Filing Date:
September 08, 1999
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G02B5/08; G02F1/13; G02F1/1335; G03B21/00; G03B33/12; H04N9/31; (IPC1-7): G03B21/00; G02F1/13; G02F1/1335; G03B33/12
Domestic Patent References:
| JP11133529A | ||||
| JP112814A | ||||
| JP9113887A |
Attorney, Agent or Firm:
Takao Igarashi (3 outside)