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Patent Searching and Data


Title:
CONVERSION LENS UNIT AND IMAGE PICK-UP DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/190985
Kind Code:
A1
Abstract:
Provided are a conversion lens unit and an image pick-up device that inhibit the adherence of debris, scratches, and user finger oil onto the optical surface of an incident luminous flux side and emission luminous flux side thereby enabling a high-quality image to be obtained. In a state where a housing (301) is retracted from above a master lens (101), a first opening (301a) and a second opening (301b) become blocked and thus a lens (La) that is closest to the object side of a conversion lens (302) is not exposed through the first opening (301a) and also a lens (Lb) closest to the image side is not exposed through the second opening (301b); therefore, scratching and contamination of the lenses can be inhibited.

Inventors:
TATEYAMA Tadao (Inc. 7-2, Marunouchi 2-chome, Chiyoda-k, Tokyo 15, 〒1007015, JP)
Application Number:
JP2013/065326
Publication Date:
December 27, 2013
Filing Date:
June 03, 2013
Export Citation:
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Assignee:
KONICA MINOLTA, INC. (7-2 Marunouchi 2-chome, Chiyoda-ku Tokyo, 15, 〒1007015, JP)
International Classes:
G03B17/12; G03B11/04; G03B15/02; G03B15/03; G03B15/05; G03B17/17; G03B17/56; H04N5/225; G03B17/02
Foreign References:
JP2002303930A
JP2004354582A
Attorney, Agent or Firm:
TAMURA Keijiro et al. (8th Floor, Masumoto Bldg. 4-3, Nishi-Shinjuku 7-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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