- 专利标题: LOW HAZE UV BLOCKING REMOVABLE LENS STACK
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申请号: PCT/US2022/031823申请日: 2022-06-01
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公开(公告)号: WO2022260910A1公开(公告)日: 2022-12-15
- 发明人: WILSON, Bart, E. , WILSON, Stephen, S.
- 申请人: RACING OPTICS, INC.
- 申请人地址: 7200 Montessouri Street, Suite 100
- 专利权人: RACING OPTICS, INC.
- 当前专利权人: RACING OPTICS, INC.
- 当前专利权人地址: 7200 Montessouri Street, Suite 100
- 代理机构: STETINA BRUNDA GARRED & BRUCKER
- 优先权: US17/342,373 2021-06-08
- 主分类号: A41D13/11
- IPC分类号: A41D13/11 ; G02B1/04 ; G02B5/20
摘要:
A protective lens stack comprises a base layer including a polyethylene terephthalate (PET) film containing a UV blocking additive and one or more removable lens layers stacked on top of the base layer. Each of the removable lens layers may include a PET film and a first adhesive disposed on a bottom surface of the PET film. Refractive indices of the base layer and the one or more removable lens layers may be matched to within 0.2. Each layer of the protective lens stack, including the base layer and each of the removable lens layer(s), may have less than 0.5% haze. The protective lens stack may be used as a face shield or may be surface mountable using a second adhesive disposed on a bottom surface of the PET film containing the UV blocking additive.