- 专利标题: Method for producing a beam shaping holographic optical element
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申请号: US15775649申请日: 2016-11-18
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公开(公告)号: US10670789B2公开(公告)日: 2020-06-02
- 发明人: Thomas Fäcke , Friedrich-Karl Bruder , Günther Walze , Andrey Putilin
- 申请人: Covestro Deutschland AG
- 申请人地址: DE Leverkusen
- 专利权人: Covestro Deutschland AG
- 当前专利权人: Covestro Deutschland AG
- 当前专利权人地址: DE Leverkusen
- 代理机构: Faegre Drinker Biddle & Reath LLP
- 优先权: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@128fd500
- 国际申请: PCT/EP2016/078166 WO 20161118
- 国际公布: WO2017/085274 WO 20170526
- 主分类号: G02B5/32
- IPC分类号: G02B5/32 ; G03H1/04 ; G03H1/02 ; G03H1/28 ; G03H1/22
摘要:
A method for recording a plurality of scatter volume holograms in a photopolymeric recording medium, the method including at least the following steps providing a first laser light source, providing a photopolymeric recording medium including a substrate and a photoactive layer, wherein the photopolymeric recording medium has an index modulation Δn of at least 0.04 and a thickness d of the photoactive layer of at least 25 μm, and irradiating the photopolymeric recording medium with the first laser light beam generated by the first laser light source with a minimum irradiation energy dosage of 3*Di, Di being the inhibition dosage of the photoactive layer.
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