发明授权
- 专利标题: Optical element having a toric surface and method of making
- 专利标题(中): 具有复曲面的光学元件及其制造方法
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申请号: US12276818申请日: 2008-11-24
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公开(公告)号: US08136947B2公开(公告)日: 2012-03-20
- 发明人: William E. Phillips, III
- 申请人: William E. Phillips, III
- 申请人地址: US MN St. Paul
- 专利权人: 3M Innovative Properties Company
- 当前专利权人: 3M Innovative Properties Company
- 当前专利权人地址: US MN St. Paul
- 代理商 Kristofor L. Storvick
- 主分类号: G03B21/14
- IPC分类号: G03B21/14
摘要:
An image forming system is described that includes a light source that provides a light beam and an anamorphic refractive optical element. A first outer surface of the anamorphic element faces the light source and includes a toric surface. The light beam is incident upon the first outer face and then an incident surface of the anamorphic element. The anamorphic element directs the light beam to an image forming device. An illumination system is also described where an anamorphic element includes a toric surface and a facet surface.
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