Title:
ND filter, light aperture device, and image pickup device
Document Type and Number:
Japanese Patent JP6336806
Kind Code:
B2
Inventors:
Takayuki Wakabayashi
Michio Yanagi
Michio Yanagi
Application Number:
JP2014079905A
Publication Date:
June 06, 2018
Filing Date:
April 09, 2014
Export Citation:
Assignee:
Canon Electronics Inc.
International Classes:
G02B1/118; B32B3/30; G02B5/00; G02B7/02; G03B9/00; G03B11/00
Domestic Patent References:
| JP2012126103A | ||||
| JP2008058438A | ||||
| JP2008076844A | ||||
| JP2007240854A | ||||
| JP2012063393A |
Foreign References:
| US20110149399 |
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata
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