- 专利标题: Method of manufacture for thin, multi-bend optics by compression molding
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申请号: US15916100申请日: 2018-03-08
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公开(公告)号: US11220028B1公开(公告)日: 2022-01-11
- 发明人: Nelson Cardenas , Yusufu Njoni Bamaxam Sulai , Alexander Sohn , Jacques Gollier , Kurt Jenkins
- 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: Weaver Austin Villeneuve & Sampson LLP
- 主分类号: B29C43/36
- IPC分类号: B29C43/36 ; B29C43/02 ; B29C43/52 ; B29K33/00 ; B29K69/00 ; B29K105/00 ; B29L11/00 ; B29C43/56
摘要:
A method for manufacturing thin, multi-bend optics includes placing an optical substrate and a protective sheet into a compression mold and closing the compression mold to deform the optical substrate and to deform the protective sheet. The optical substrate can include an optical surface and the protective sheet can be disposed between the compression mold and the optical surface of the optical substrate. The compression mold can include a mold contact surface that is characterized by a surface roughness. The compression mold can be held in a closed position for a compression time period, during which, the protective sheet contacts the mold contact surface and provides a buffer layer between the mold contact surface and the optical surface thereby mitigating against transfer of the surface roughness of the mold contact surface onto the optical surface.
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