Title:
CAMERA FILTER FRAME AND CAMERA FILTER UNIT
Document Type and Number:
WIPO Patent Application WO/2016/121427
Kind Code:
A1
Abstract:
A camera filter frame (10) includes a front ring (4) for holding a polarization filter (2) and a rear ring (5) for rotatably holding the front ring (4). The front ring (4) includes a rear annular wall portion (18) extending in a radial direction (R), a rear annular plate portion (19) extending rearward from the inner peripheral end of the rear annular wall portion (18), and an annular projection portion (20) projecting in an outer peripheral direction for a short distance from the rear end of the rear annular plate portion (19). The rear annular wall portion (18), the rear annular plate portion (19), and the annular projection portion (20) form an annular recess (21) on the outer peripheral surface of the front ring (4). The rear ring (5) is provided with an annular protrusion (45) protruding in an inner peripheral direction. The annular protrusion (45) is inserted in the annular recess (21) of the front ring (4).
Inventors:
KOBAYASHI HIDEO (JP)
Application Number:
PCT/JP2016/050207
Publication Date:
August 04, 2016
Filing Date:
January 06, 2016
Export Citation:
Assignee:
TSUSO KK (JP)
International Classes:
G03B11/00
Foreign References:
| JP2005107347A | 2005-04-21 | |||
| JPS5529425U | 1980-02-26 | |||
| JP3193897U | 2014-10-23 | |||
| JP2014052507A | 2014-03-20 | |||
| JPS5898623U | 1983-07-05 | |||
| EP2752696A1 | 2014-07-09 | |||
| CN103885152A | 2014-06-25 | |||
| CN103246037A | 2013-08-14 | |||
| CN203037971U | 2013-07-03 |
Attorney, Agent or Firm:
KAWAI Toru et al. (JP)
Kawai 徹 (JP)
Kawai 徹 (JP)
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