Title:
LIGHT BLOCKING PLATE, CAMERA UNIT, AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/015130
Kind Code:
A1
Abstract:
In the present invention, provided are the following: a front surface located on a light incident side; a back surface that is a surface opposite the front surface; and a hole that passes between the front surface and the back surface. The hole is provided with a first hole portion and a second hole portion that connects to the first hole portion at a central opening. The first hole portion extends from a back-surface opening in the back surface to the central opening and is tapered from the back surface toward the front surface. The second hole portion extends from a front-surface opening in the front surface to the central opening and is tapered from the front surface toward the back surface. The front-surface opening is greater in size than the back-surface opening. The ratio of the distance of the distance between the front surface and the edge of the central opening to the distance between the back surface and the edge of the central opening in the thickness direction of the light shielding plate is at least 2.5.
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Inventors:
NISHITSUJI KIYOAKI (JP)
SHIMAMURA SHINICHI (JP)
SHIMAMURA SHINICHI (JP)
Application Number:
PCT/JP2020/027892
Publication Date:
January 28, 2021
Filing Date:
July 17, 2020
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD (JP)
International Classes:
C23F1/00; G02B5/00; G02B7/02; G03B9/02
Foreign References:
| JP2006072151A | 2006-03-16 | |||
| JP2002229095A | 2002-08-14 | |||
| JP2008257134A | 2008-10-23 |
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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