| 发明名称 |
OPTICAL IMAGE CAPTURING SYSTEM |
| 摘要 |
An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. At least one lens among the first to the fifth lenses has positive refractive force. The fifth lens can have negative refractive force, wherein both surfaces thereof are aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the fifth lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras. |
| 申请公布号 |
US2017017065(A1) |
申请公布日期 |
2017.01.19 |
| 申请号 |
US201615074841 |
申请日期 |
2016.03.18 |
| 申请人 |
ABILITY OPTO-ELECTRONICS TECHNOLOGY CO., LTD. |
发明人 |
LIU YAO-WEI;TANG NAI-YUAN;CHANG YEONG-MING |
| 分类号 |
G02B13/00;G02B7/04;G02B27/64;G02B9/60 |
主分类号 |
G02B13/00 |
| 代理机构 |
|
代理人 |
|
| 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 refractive power; a second lens having refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; and an image plane; wherein the optical image capturing system consists of the five lenses with refractive power; at least one lens among the first lens to the fifth lens has positive refractive power; each lens among the first lens to the fifth lens has an object-side surface, which faces the object side, and an image-side surface, which faces the image side, and the object-side surface and the image-side surface of at least one lens among the first lens to the fifth lens are aspheric surfaces; wherein the optical image capturing system satisfies:
1.2≦f/HEP≦6.0;0<InTL/HOS<0.9; and0.9≦2(ARE/HEP)≦1.5; where f1, f2, f3, f4, and f5 are focal lengths of the first lens to the fifth 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; HOS is a distance in parallel with the optical axis from an object-side surface of the first lens to the image plane; InTL is a distance in parallel with the optical axis from the object-side surface of the first lens to the image-side surface of the fifth lens; for any surface of any lens, ARE is a profile curve length measured from a start point where the optical axis passes therethrough, along a surface profile thereof, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis. |
| 地址 |
TAICHUNG TW |
