发明申请
- 专利标题: High-Aperture Wide-Angle Lens
- 专利标题(中): 高光圈广角镜头
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申请号: US13818096申请日: 2011-08-11
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公开(公告)号: US20130188265A1公开(公告)日: 2013-07-25
- 发明人: Hildegard Ebbesmeier , Thomas Steinich
- 申请人: Hildegard Ebbesmeier , Thomas Steinich
- 申请人地址: DE Bad Kreuznach
- 专利权人: JOS. SCHNEIDER OPTISCHE WERKE GMBH
- 当前专利权人: JOS. SCHNEIDER OPTISCHE WERKE GMBH
- 当前专利权人地址: DE Bad Kreuznach
- 优先权: DE102010035034.6 20100820
- 国际申请: PCT/EP2011/063863 WO 20110811
- 主分类号: G02B13/04
- IPC分类号: G02B13/04
摘要:
A high-aperture wide-angle lens for digital image acquisition, comprising five lens elements, as viewed from the object side, i.e. from the left, a first, negative meniscus lens element, a second, positive lens element, a third, positive lens element, a fourth, negative lens element and a fifth, positive meniscus lens element. A diaphragm is arranged between the second lens element and the third lens element. At least three surfaces upstream of the diaphragm and three surfaces downstream of the diaphragm are embodied as aspherical surface. However, further surfaces can also have an aspherical design. On account of its extremely compact design and its outstanding optical properties, the proposed high-aperture wide-angle lens is suitable as an interchangeable lens for so-called “hybrid cameras”.
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