Title:
OPTICAL UNIT
Document Type and Number:
Japanese Patent JP2006276575
Kind Code:
A
Abstract:
To provide an optical unit capable of preventing dust, such as wear powder or the like, which occurs due to focus adjustment, from sticking to lenses.
The optical unit includes: a base 20 having a lens barrel and a first cam face 201A disposed on the outside of the lens barrel; a first cam member 21 placed on the base 20 and having a first cam pin 211A that engages with the first cam face 201A; a second cam member 22 placed on the first cam member 21 and having a second cam face 221A on the outside of the lens barrel; and a lens holder 23 placed on the second cam member 22 and having a second cam pin 231A that engages with the second cam face 221A on the outside of the lens barrel.
Inventors:
MORINAGA SHINJI
NAKANO YOICHI
MATSUMOTO SATORU
NAKANO YOICHI
MATSUMOTO SATORU
Application Number:
JP2005097107A
Publication Date:
October 12, 2006
Filing Date:
March 30, 2005
Export Citation:
Assignee:
SEIKO PRECISION KK
International Classes:
G02B7/04; G02B7/08; G02B7/09
Attorney, Agent or Firm:
Kimura Mitsuru
Takanori Mamoru
Takanori Mamoru