发明名称 |
OPTICAL IMAGE CAPTURING SYSTEM |
摘要 |
The invention discloses a three-piece optical lens for capturing image and a three-piece optical module for capturing image, which include, along the optical axis in order from an object side to an image side, a first lens with positive refractive power having an object-side surface which can be convex; a second lens with refractive power; a third lens with refractive power; two surfaces of each of the three lenses can be both aspheric. The third lens can have positive refractive power, wherein an image-side surface thereof can be concave, and both surfaces thereof are aspheric; at least one surface of the third lens has an inflection point. The optical lens can increase aperture value and improve the imaging quality for use in a compact camera. |
申请公布号 |
US2016212309(A1) |
申请公布日期 |
2016.07.21 |
申请号 |
US201514816987 |
申请日期 |
2015.08.03 |
申请人 |
ABILITY OPTO-ELECTRONICS TECHNOLOGY CO., LTD. |
发明人 |
LIU YAO-WEI;CHANG YEONG-MING |
分类号 |
H04N5/225;G02B13/00 |
主分类号 |
H04N5/225 |
代理机构 |
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代理人 |
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主权项 |
1. An optical image capturing system, in order along an optical axis from an object side to an image side, comprising:
a first lens having positive refractive power; a second lens having refractive power; a third lens having refractive power; and an image plane; wherein the optical image capturing system consists of the three lenses with refractive power; at least two of the three lenses each has at least an inflection point on at least a surface thereof; the third lens has an object-side surface, which faces the object side, and an image-side surface, which faces the image side, and both the object-side surface and the image-side surface of the third lens are aspheric surfaces; wherein the optical image capturing system satisfies:
1.2≦f/HEP≦6.0; and0.5≦HOS/f≦3.0; where f1, f2, and f3 are focal lengths of the first lens to the third lens, respectively; f is a focal length of the optical image capturing system; HEP is an entrance pupil diameter of the optical image capturing system; and HOS is a distance in parallel with the optical axis from an object-side surface of the first lens to the image plane. |
地址 |
TAICHUNG TW |