- 专利标题: Hybrid fresnel lens with reduced artifacts
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申请号: US15264496申请日: 2016-09-13
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公开(公告)号: US10133076B2公开(公告)日: 2018-11-20
- 发明人: Brian Wheelwright , Jacques Gollier , Melissa Geng
- 申请人: FACEBOOK TECHNOLOGIES, LLC
- 申请人地址: US CA Menlo Park
- 专利权人: FACEBOOK TECHNOLOGIES, LLC
- 当前专利权人: FACEBOOK TECHNOLOGIES, LLC
- 当前专利权人地址: US CA Menlo Park
- 代理机构: Morgan, Lewis & Bockius LLP
- 主分类号: G02B27/14
- IPC分类号: G02B27/14 ; G02B27/01 ; G02B3/08
摘要:
A lens defined by a first lens surface and a second lens surface opposite to the first lens surface is disclosed. A first portion of the first lens surface is defined by a smooth surface profile function, and a second portion of the first lens surface is defined by a Fresnel surface profile function. The second portion of the first lens surface is around the first portion of the first lens surface. Also disclosed is a display device that includes the lens and an array of light emitting devices coupled with the lens for outputting light through the lens.
公开/授权文献
- US20180074318A1 Hybrid Fresnel Lens with Reduced Artifacts 公开/授权日:2018-03-15
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