发明授权
- 专利标题: Anti-reflection film for synthetic resin optical elements
- 专利标题(中): 合成树脂光学元件防反射膜
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申请号: US332809申请日: 1989-04-03
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公开(公告)号: US4988164A公开(公告)日: 1991-01-29
- 发明人: Hajime Ichikawa
- 申请人: Hajime Ichikawa
- 申请人地址: JPX
- 专利权人: Olympus Optical Co., Ltd.
- 当前专利权人: Olympus Optical Co., Ltd.
- 当前专利权人地址: JPX
- 优先权: JPX63-102287 19880425
- 主分类号: G02B1/11
- IPC分类号: G02B1/11
摘要:
An anti-reflective film for synthetic resin optical parts of elements. The film comprises a first SiO layer, a second SiO.sub.2 layer, a third CeO.sub.2 layer and a fourth SiO.sub.2 layer, each layer having a particular optical thickness at a wavelength of .lambda.=400-700 nm.
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