发明名称 |
FRESNEL LENS AND OPTICAL DEVICE |
摘要 |
A refractive Fresnel lens used for an optical system including an image plane, which includes a plurality of zone lens surfaces disposed concentrically and a plurality of side wall surfaces each formed between adjacent zone lens surfaces, is characterized in that the side wall surfaces are modulated so as to spatially spread in the image plane noise light due to reflection and/or refraction at the side wall surfaces. |
申请公布号 |
WO2014084411(A1) |
申请公布日期 |
2014.06.05 |
申请号 |
WO2013JP82897 |
申请日期 |
2013.12.02 |
申请人 |
ESSILOR INTERNATIONAL;NIKON CORPORATION |
发明人 |
FUJII, TORU;GOULET, ALAIN |
分类号 |
G02B3/08;G02C7/02 |
主分类号 |
G02B3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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