IP Library Granted Patent US 9,618,729
Granted Patent B2
US 9,618,729 · App. 15/011,595 · Granted Apr 11, 2017

Camera lens

Inventor: Hiroyuki Teraoka (Shenzhen, CN)
Assignee: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
G02B13/0045G02B9/60G02B27/0025
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Quick Facts
Patent No.
US 9,618,729
App. No.
15/011,595
Granted
Apr 11, 2017
Kind
B2
Abstract

A camera lens includes, lined up from the object side to the image side, a first lens with positive refractive power, a second lens with negative refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power, and a fifth lens with negative refractive power. The camera lens satisfies specific conditions.

Claims (20)

1. A camera lens comprising, lined up from the object side to the image side, a first lens with positive refractive power, a second lens with negative refractive power, a third lens with negative refractive power, a fourth lens with positive refractive power, a fifth lens with negative refractive power, wherein the camera lens satisfies the following conditions (1)-(5):

0.67 ≦f 1/ f≦ 0.80  (1)

−40.00 ≦f 3/ f≦− 15.00  (2)

−1.20≦( R 1+ R 2)/( R 1 −R 2)≦−0.95  (3)

−0.20≦( R 3+ R 4)/( R 3 −R 4)≦0.28  (4)

0.11 ≦d 8/ f≦ 0.15  (5)

In which:

f: Overall focal distance of the lenses;

f1: The focal distance of the first lens;

f3: The focal distance of the third lens;

R 1 : The object side curvature radius of the first lens;

R 2 : The image side curvature radius of the first lens;

R 3 : The object side curvature radius of the second lens;

R 4 : The image side curvature radius of the second lens;

d 8 : The axial distance between the image side of the fourth lens and the object side of the fifth lens.

2. The camera lens according to claim 1 further satisfying the following condition (6):

0.05≦ d 6/ f≦ 0.15  (6)

In which:

f: Overall focal distance of the lenses;

d 6 : The axial distance between the image side of the third lens and the object side of the fourth lens.

Assignments (3)
CHANGE OF NAME Recorded Oct 16, 2020
From: AAC COMMUNICATION TECHNOLOGIES (CHANGZHOU) CO., LTD.
To: AAC OPTICS (CHANGZHOU) CO., LTD.
Reel/Frame 054090/0347 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 16, 2020
From: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
To: AAC COMMUNICATION TECHNOLOGIES (CHANGZHOU) CO., LTD.
Reel/Frame 052410/0333 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 6, 2017
From: TERAOKA, HIROYUKI
To: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
Reel/Frame 040867/0543 →
Priority Claims (1)
JP 2015-122626 · Jun 18, 2015 · national
Continuity (1)
Related Publication 20160370559A1 · Dec 22, 2016