| 发明名称 | Imaging lens | ||
| 摘要 | To provide a high image-quality, low cost, and small sized imaging lens suitable for an imaging lens which is compact and which has high density pixels, and with aberrations corrected satisfactorily. An imaging lens is configured from a first lens, a second lens, a third lens, and a fourth lens arranged in the named order from an object side, wherein both surfaces of each lens are formed from aspheric surface, and a diffraction optics surface exerting chromatic aberration correction function is arranged on any one surface from a surface of the first lens on an object side to a surface of the third lens on the object side, and each lens is configured from plastic material. | ||
| 申请公布号 | US9268115(B2) | 申请公布日期 | 2016.02.23 |
| 申请号 | US201213527747 | 申请日期 | 2012.06.20 |
| 申请人 | KANTATSU CO., LTD. | 发明人 | Suzuki Hisanori;Matsuoka Kazuo |
| 分类号 | G02B3/02;G02B9/34;G02B13/00 | 主分类号 | G02B3/02 |
| 代理机构 | Westerman, Hattori, Daniels & Adrian, LLP | 代理人 | Westerman, Hattori, Daniels & Adrian, LLP |
| 主权项 | 1. An imaging lens for an imaging element, comprising: a first lens, a second lens, a third lens, and a fourth lens arranged in the named order from an object side, wherein both surfaces of each lens are formed of aspheric surfaces, a diffraction optics surface exerting chromatic aberration correction function is arranged on any one surface from a surface of the first lens on an object side to a surface of the third lens on the object side, and each lens is configured from plastic material. | ||
| 地址 | Yaita-shi JP | ||