Title:
LENS UNIT AND CAMERA MODULE
Document Type and Number:
Japanese Patent JP2018072842
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: 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:
JP2017212554A
Publication Date:
May 10, 2018
Filing Date:
November 02, 2017
Export Citation:
Assignee:
MAXELL HOLDINGS LTD
International Classes:
G02B7/02; G03B11/00; G03B15/00
Domestic Patent References:
| JP2004334048A | 2004-11-25 | |||
| JP2006081043A | 2006-03-23 | |||
| JP2009210914A | 2009-09-17 | |||
| JP4999508B2 | 2012-08-15 |
Foreign References:
| WO2011102056A1 | 2011-08-25 |
Attorney, Agent or Firm:
Kuribayashi Mitsuo