Title:
プリズム装置及び投写型映像表示装置
Document Type and Number:
Japanese Patent JP7108838
Kind Code:
B2
Abstract:
A first prism has first to third faces. The first face is opposing a first optical modulator. Any two planes among three planes respectively including the first to third faces intersect with each other. A second prism has fourth to sixth faces. The fourth face is provided to be in contact with the third face via a dichroic coating layer and in parallel with the third face. The fifth face is opposing a second optical modulator and in parallel with the second face. The sixth face is in opposite to the first optical modulator with respect to an optical axis of the second optical modulator. The sixth face is formed to be inclined with respect to a reference surface, such that an unnecessary transmitted light and an unnecessary reflected light of the dichroic coating layer are not totally reflected by the sixth face.
Inventors:
Kiwa Yamamoto
Application Number:
JP2018101613A
Publication Date:
July 29, 2022
Filing Date:
May 28, 2018
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
G03B21/14; G02B5/04; G02B26/08; G03B21/00
Domestic Patent References:
| JP9105805A | ||||
| JP2002296675A | ||||
| JP2010078766A | ||||
| JP2010113285A | ||||
| JP2010276663A | ||||
| JP2011064886A |
Foreign References:
| US20070126992 | ||||
| US20140085609 | ||||
| CN204989730U |
Attorney, Agent or Firm:
Michiko Matsutani
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