Title:
LIGHT AMOUNT ADJUSTER AND OPTICAL DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2013/183299
Kind Code:
A1
Abstract:
[Problem] To provide a light-amount adjuster appropriate for reduced-profile applications. [Solution] A light-amount adjuster (110) has: a light-amount adjustment blade (103) formed between a first optical member (51) and a second optical member (53), the light-amount adjustment blade (103) moving along a curved path; and a blade drive part (105) for causing the light-amount adjustment blade to rotate along the curved path. In addition, the light-amount adjustment device (110) has a light-amount adjustment blade (103) formed between the first optical member (51) and the second optical member (53), the light-amount adjustment blade (103) moving along a curved path; and a blade-drive means for driving the light-adjustment blade along the curved path. The blade-drive means has a rotating member (102) for causing the light-adjustment blade to rotate, and a drive part (105) connected to the outer peripheral edge of the rotating member.
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Inventors:
KOZU SATOSHI (JP)
SATO KOTAKU (JP)
SATO KOTAKU (JP)
Application Number:
PCT/JP2013/003579
Publication Date:
December 12, 2013
Filing Date:
June 06, 2013
Export Citation:
Assignee:
CANON DENSHI KK (JP)
International Classes:
G03B9/02; G03B9/06
Foreign References:
| JP2012053492A | 2012-03-15 | |||
| JP2007500869A | 2007-01-18 | |||
| JP2010281970A | 2010-12-16 | |||
| JPH01120542A | 1989-05-12 |
Attorney, Agent or Firm:
FUJIMOTO, RYOSUKE (JP)
Ryosuke Fujimoto (JP)
Ryosuke Fujimoto (JP)
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