Title:
LENS UNIT AND CAMERA MODULE
Document Type and Number:
Japanese Patent JP2019020755
Kind Code:
A
Abstract:
To provide a lens unit which can prevent fogging due to outgassing of adhesives at low cost when bonding an optical filter in a lens barrel by using adhesives, by providing a communication groove on a bonding surface, and a camera module.SOLUTION: A lens unit includes a lens barrel 1, lenses 2, 3, 4, and 6 in the lens barrel 1, and an optical filter 7 located at one end of the lens barrel 1. One end surface 22 of the lens barrel 1 has a bonding surface 21 located in an inner area thereof through a step surface 23 between itself and the end surface 22. A circumferential edge portion of the optical filter 7 is bonded to the bonding surface 21. An adhesive recess 25, which has a bottom surface 24 connected to the bonding surface 21 and is for supplying adhesives to be introduced to a space between the bonding surface 21 and the circumferential edge portion of the optical filter, is provided at a plurality of locations on the end surface 22. A communication groove 27, which communicates the inside of the lens barrel 1 with the outside thereof in a state that the optical filter 7 is bonded to the bonding surface 21, is provided on the bonding surface 21.SELECTED DRAWING: Figure 2
Inventors:
HIRATA HIROYUKI
Application Number:
JP2018212704A
Publication Date:
February 07, 2019
Filing Date:
November 13, 2018
Export Citation:
Assignee:
MAXELL HOLDINGS LTD
International Classes:
G02B7/02; G02B5/00; G03B11/00
Domestic Patent References:
| JP2013020026A | 2013-01-31 | |||
| JP2015031926A | 2015-02-16 | |||
| JP2004334048A | 2004-11-25 | |||
| JP2007300428A | 2007-11-15 | |||
| JP2009210914A | 2009-09-17 | |||
| JP2006081043A | 2006-03-23 | |||
| JP2013071364A | 2013-04-22 | |||
| JP2005199490A | 2005-07-28 |
Foreign References:
| CN203054318U | 2013-07-10 | |||
| KR100808017B1 | 2008-02-28 |
Attorney, Agent or Firm:
Kuribayashi Mitsuo