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Title:
LIGHT SHIELDING PLATE, CAMERA UNIT, ELECTRONIC DEVICE, AND METHOD FOR MANUFACTURING LIGHT SHIELDING PLATE
Document Type and Number:
WIPO Patent Application WO/2021/149729
Kind Code:
A1
Abstract:
The present invention comprises a front surface located on a light-incident side, a rear surface that is a surface opposite to the front surface, and a hole passing between the front surface and the rear surface. The hole includes a first hole part and a second hole part connected to the first hole part in a central opening. The first hole part has a shape extending from a rear surface opening to the central opening in the rear surface and tapered from the rear surface to the front surface. The second hole part has a shape extending from a front surface opening to the central opening in the front surface and tapered from the front surface to the rear surface. The size of the front surface opening is larger than the size of the rear surface opening. The roundness of the central opening is 3 μm or less.

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Inventors:
NISHITSUJI KIYOAKI (JP)
SHIMAMURA SHINICHI (JP)
AIZAWA HIROYASU (JP)
Application Number:
PCT/JP2021/001872
Publication Date:
July 29, 2021
Filing Date:
January 20, 2021
Export Citation:
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Assignee:
TOPPAN PRINTING CO LTD (JP)
International Classes:
G03B9/02; G03B11/04; G03B17/02; H04N5/225
Foreign References:
JP2006072151A2006-03-16
JP2011107588A2011-06-02
JP2016109959A2016-06-20
JP2002229095A2002-08-14
JP2006079073A2006-03-23
JPH0996850A1997-04-08
JP2017015815A2017-01-19
JP2003311972A2003-11-06
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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