Title:
LIGHT QUANTITY ADJUSTMENT DEVICE AND OPTICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/119277
Kind Code:
A1
Abstract:
This light quantity adjustment device comprises: a light path forming member, further comprising an aperture part which forms a light path; a plurality of light quantity adjustment members which adjust the quantity of light which passes through the aperture part; and a plurality of movement means for linearly advancing and retracting the light quantity adjustment members upon the aperture part.
Inventors:
SATO OSAMU (JP)
MIYASHITA KYOUSUKE (JP)
MIYASHITA KYOUSUKE (JP)
Application Number:
PCT/JP2014/000398
Publication Date:
August 07, 2014
Filing Date:
January 27, 2014
Export Citation:
Assignee:
CANON DENSHI KK (JP)
International Classes:
G02B5/00; G03B11/00; G03B9/02
Foreign References:
| JP2002176573A | 2002-06-21 | |||
| JP2012003128A | 2012-01-05 | |||
| JP2002182263A | 2002-06-26 | |||
| JP2002176573A | 2002-06-21 |
Other References:
See also references of EP 2952959A4
Attorney, Agent or Firm:
OHTSUKA, Yasunori et al. (JP)
Yasunari Otsuka (JP)
Yasunari Otsuka (JP)
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