IP Library Granted Patent US 10,989,902
Granted Patent B2
US 10,989,902 · App. 16/236,538 · Granted Apr 27, 2021

Camera lens

Inventor: Hiroyuki Teraoka (Shenzhen, CN)
Assignee: AAC Optics (Changzhou) Co., Ltd.
G02B13/0045G02B9/64
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Quick Facts
Patent No.
US 10,989,902
App. No.
16/236,538
Granted
Apr 27, 2021
Kind
B2
Abstract

The present disclosure provides a camera lens, constituted by eight lenses, and featuring excellent optical characteristics, an ultra-thin appearance, a wide angle and a bright Fno. The camera lens is configured with, sequentially from an object side: a 1st lens having a positive refractive power, a 2nd lens having a negative refractive power, a 3rd lens having a negative refractive power, a 4th lens having a positive refractive power, a 5th lens having a negative refractive power, a 6th lens having a positive refractive power, a 7th lens having a positive refractive power and an 8th lens having a negative refractive power, and satisfies specified conditional features.

Claims (26)

1. A camera lens, configured with, sequentially from an object side: a 1st lens having a positive refractive power, a 2nd lens having a negative refractive power, a 3rd lens having a negative refractive power, a 4th lens having a positive refractive power, a 5th lens having a negative refractive power, a 6th lens having a positive refractive power, a 7th lens having a positive refractive power and an 8th lens having a negative refractive power, and satisfying conditional formulas (1), (2) and (4) below:

35.00≤ v 1− v 2≤50.00  (1);

35.00≤ v 1− v 3≤50.00  (2);

−8.00≤ f 2/ f≤− 5.00  (4)

where,

v1: Abbe number of the 1st lens L 1 ;

v2: Abbe number of the 2nd lens L 2 ;

v3: Abbe number of the 3rd lens L 3 ;

f: a focal length of the overall camera lens;

f2: a focal length of the 2nd lens.

2. The camera lens according to claim 1 , satisfying a conditional formula (3) below:

1.00≤ f 1/ f≤ 1.50  (3);

where,

f1: a focal length of the 1st lens.

3. The camera lens according to claim 1 , satisfying a conditional formula (5) below:

−8.00≤ f 3/ f≤− 5.00  (5);

where,

f3 a focal length of the 3rd lens.

4. The camera lens according to claim 1 , satisfying a conditional formula (6) below:

0.30≤ f 7/ f≤ 1.50  (6);

where,

f7: a focal length of the 7th lens.

5. The camera lens according to claim 1 , satisfying a conditional formula (7) below:

−1.00≤ f 8/ f≤− 0.30  (7);

where,

f8: a focal length of the 8th 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 17, 2020
From: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
To: AAC COMMUNICATION TECHNOLOGIES (CHANGZHOU) CO., LTD.
Reel/Frame 052423/0570 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 31, 2019
From: TERAOKA, HIROYUKI
To: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
Reel/Frame 048198/0117 →
Priority Claims (1)
JP JP2018-137212 · Jul 20, 2018 · national
Continuity (1)
Related Publication 20200026040A1 · Jan 23, 2020