Title:
IMAGE PICKUP OPTICAL CAMERA
Document Type and Number:
WIPO Patent Application WO/2021/127861
Kind Code:
A1
Abstract:
An image pickup optical camera (10), relating to the field of optical cameras. From an object side to an image side, the image pickup optical camera (10) sequentially comprises a first lens (L1) having positive refractive power, a second lens (L2) having positive refractive power, a third lens (L3) having positive refractive power, and a fourth lens (L4) having negative refractive power. The following relational expressions are satisfied: 2.50≤f1/f≤5.00, -10.00≤(R3+R4)/(R3-R4)≤-3.00, 0.70≤f3/f≤1.00, 3.00≤d1/d2≤8.00, and 8.00≤d5/d6≤15.00. The image pickup optical camera (10) can obtain high imaging performance, and also satisfies the design requirements of a large aperture, a wide angle, and ultra-thinness.
Inventors:
TAN MENGKE (CN)
Application Number:
PCT/CN2019/127492
Publication Date:
July 01, 2021
Filing Date:
December 23, 2019
Export Citation:
Assignee:
AAC OPTICS CHANGZHOU CO LTD (CN)
International Classes:
G02B13/00; G02B13/06; G02B13/18
Foreign References:
| CN109856775A | 2019-06-07 | |||
| CN109856774A | 2019-06-07 | |||
| CN110515181A | 2019-11-29 | |||
| CN202171677U | 2012-03-21 | |||
| US20140184880A1 | 2014-07-03 | |||
| US20130057969A1 | 2013-03-07 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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