Title:
FILTER FRAME FOR DIGITAL CAMERA MADE FROM POLYMER ELASTIC BODY
Document Type and Number:
WIPO Patent Application WO/2013/114635
Kind Code:
A1
Abstract:
By decreasing the weight of various filter frames, this filter frame reduces the load of an autofocus motor built into the camera body. The filter frames are used by mounting on the front surface of the lens barrel of the digital camera, and the optical axis of the lens barrel is prevented from coming out of alignment when hit by hard objects during use. A ring-shape filter frame body is manufactured by forming and treating a polymer elastic body, and a filter lens having various effects is fitted into said ring-shape filter frame body.
Inventors:
KARASAWA YUTAKA (JP)
Application Number:
PCT/JP2012/057676
Publication Date:
August 08, 2013
Filing Date:
March 19, 2012
Export Citation:
Assignee:
MARUMI OPTICAL CO LTD (JP)
KARASAWA YUTAKA (JP)
KARASAWA YUTAKA (JP)
International Classes:
G03B11/04
Foreign References:
| JP2011043653A | 2011-03-03 | |||
| JP2008191412A | 2008-08-21 | |||
| JPH02274448A | 1990-11-08 | |||
| JPS62140240A | 1987-06-23 | |||
| JP2005301173A | 2005-10-27 |
Other References:
See also references of EP 2811341A4
Attorney, Agent or Firm:
HATAKEYAMA, TAKASHI (JP)
Takashi Hatakeyama (JP)
Takashi Hatakeyama (JP)
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Claims: