Title:
LENS UNIT AND CAMERA MODULE
Document Type and Number:
Japanese Patent JP2021119419
Kind Code:
A
Abstract:
To provide a lens unit and a camera module capable of preventing a decrease in visibility following misting of a lens surface and accumulation of adhered waterdrops and maintaining high transmittance.SOLUTION: A lens unit 11 has a lens group in which plural lenses are arranged along a light axis of the lenses, and a lens barrel 12 for storing the lens group, and a first lens in a side closest to an object in the lens group is provided in an edge of an object side of the lens barrel 12, and includes a lens front surface 13a facing an object side and a lens rear surface 13b facing an image surface side. A reflection prevention film 30 is formed on the lens front surface 13a and the lens rear surface 13b. A hydrophilic film 31 is formed on the reflection prevention film 30 in the lens rear surface 13b.SELECTED DRAWING: Figure 1
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Inventors:
INABA AKIRA
BABA YUSUKE
SUGIME TAKAYUKI
NAKAYAMA OSAMU
SHINOHARA HIDEKI
BABA YUSUKE
SUGIME TAKAYUKI
NAKAYAMA OSAMU
SHINOHARA HIDEKI
Application Number:
JP2021082129A
Publication Date:
August 12, 2021
Filing Date:
May 14, 2021
Export Citation:
Assignee:
MAXELL LTD
International Classes:
G02B1/10; G02B1/11; G02B7/02; G03B15/00; G03B17/02; G03B30/00
Domestic Patent References:
| JP2006072020A | 2006-03-16 | |||
| JP2015231216A | 2015-12-21 | |||
| JP2009244388A | 2009-10-22 | |||
| JP2003075704A | 2003-03-12 | |||
| JP2013231993A | 2013-11-14 | |||
| JPH03194501A | 1991-08-26 |
Foreign References:
| US2039474A | 1936-05-05 |
Attorney, Agent or Firm:
Kuribayashi Mitsuo
Osamu Nitta
Kazuki Kuribayashi
Osamu Nitta
Kazuki Kuribayashi