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Patent Searching and Data


Title:
PHOTOGRAPHING UNIT
Document Type and Number:
WIPO Patent Application WO/2005/111713
Kind Code:
A1
Abstract:
A photographing unit using an automatic transmission light dimming system which has a wide dimming quantity range, a small transmission light loss due to the system itself and has a high response speed. The photographing unit is provided with a dimming element wherein an electrochromic material is used on an object side or on an image pickup/recording medium side of a photographing lens.

Inventors:
Kaneiwa, Hideki
Shinohara, Ryuji
Matsunaga, Atsushi
Ishii, Yoshio
Application Number:
PCT/JP2005/008692
Publication Date:
November 24, 2005
Filing Date:
May 12, 2005
Export Citation:
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Assignee:
FUJIFILM Corporation (26-30, Nishiazabu 2-chome Minato-ku, Tokyo 31, 10600, JP)
Kaneiwa, Hideki
Shinohara, Ryuji
Matsunaga, Atsushi
Ishii, Yoshio
International Classes:
G03B7/00; G03B7/08; G03B7/18; G03B9/02; G03B11/00; (IPC1-7): G03B11/00; G03B7/00
Foreign References:
JP2004056297A2004-02-19
JP2003315869A2003-11-06
JPH06337459A1994-12-06
JPH08184902A1996-07-16
JPH0660828U1994-08-23
JPH05346594A1993-12-27
JP2004219612A2004-08-05
US20040135916A12004-07-15
Attorney, Agent or Firm:
Oguri, Shohei (Eikoh Patent Office, 7-13 Nishi-Shimbashi 1-chom, Minato-ku Tokyo 03, 10500, JP)
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