| 发明名称 | Image pickup lens and image pickup unit | ||
| 摘要 | An image pickup lens includes: in recited order from object plane toward image plane, a first lens having positive refractive power; a second lens having positive or negative refractive power; a third lens having negative refractive power; a fourth lens having negative refractive power; a fifth lens having positive refractive power; and a sixth lens having negative refractive power and having optical surfaces, an image-sided surface of the optical surfaces having an aspherical shape with one or more inflection points other than an intersection point of the image-sided surface and an optical axis. | ||
| 申请公布号 | US9285568(B2) | 申请公布日期 | 2016.03.15 |
| 申请号 | US201313945145 | 申请日期 | 2013.07.18 |
| 申请人 | SONY CORPORATION | 发明人 | Yamazaki Takayuki;Nabeta Kenshi |
| 分类号 | G02B9/62;G02B13/18;H04N5/225;G02B13/00 | 主分类号 | G02B9/62 |
| 代理机构 | Hazuki International, LLC | 代理人 | Hazuki International, LLC |
| 主权项 | 1. An image pickup lens comprising: in recited order from an object plane towards an image plane, a first lens having positive refractive power; a second lens having positive or negative refractive power; a third lens having negative refractive power; a fourth lens having negative refractive power; a fifth lens having positive refractive power and a biconvex shape; and a sixth lens having negative refractive power and having optical surfaces, an image-sided surface of the optical surfaces having an aspherical shape with one or more inflection points other than an intersection point of the image-sided surface and an optical axis, wherein following conditional expression is satisfied, 0≦f3/f4≦1.0 (1) where f3 is a focal length of the third lens, and f4 is a focal length of the fourth lens. | ||
| 地址 | Tokyo JP | ||