Television – Camera – system and detail – Optics
Reexamination Certificate
2008-09-30
2008-09-30
Ho, Tuan V (Department: 2622)
Television
Camera, system and detail
Optics
C348S360000
Reexamination Certificate
active
10985006
ABSTRACT:
A photographic light is spectrally separated by a spectral prism9provided in an image-formation area R of the photographic light whose luminous flux is adjusted by a group of lenses1a-1dfor adjusting the luminous flux so as to image-form the photographic light. Respective lights spectrally separated by the spectral prism9are imaged by means of the imaging elements2. An infrared-ray element of the photographic light whose luminous flux is being adjusted is eliminated by an infrared-ray cut filter8. The infrared-ray cut filter8is advanced and retreated by a mechanism unit14abetween a position in an optica path of the photographic light and a position distant from the optical path. In the foregoing constitution, the infrared-ray cut filter8and the mechanism unit14aare disposed in a luminous flux convergence area R of the photographic light whose luminous flux is being adjusted by the group of lenses1a-1d.
REFERENCES:
patent: 6778325 (2004-08-01), Osawa
patent: 7079186 (2006-07-01), Hashimoto
patent: 7224396 (2007-05-01), Oochi et al.
patent: 7233358 (2007-06-01), Yoshikawa
patent: 2002/0163586 (2002-11-01), Noguchi
patent: 63-037889 (1988-02-01), None
Funaki Taisei
Hino Masayuki
Kokuwa Takashi
Ho Tuan V
Matsushita Electric - Industrial Co., Ltd.
McDermott Will & Emery LLP
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