发明申请
- 专利标题: Hybrid achromatic optical lens and method for manufacturing the same
- 专利标题(中): 混合消色差光学透镜及其制造方法
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申请号: US11785039申请日: 2007-04-13
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公开(公告)号: US20070195415A1公开(公告)日: 2007-08-23
- 发明人: Eun-hyoung Cho , Myung-bok Lee , Jin-seung Sohn
- 申请人: Eun-hyoung Cho , Myung-bok Lee , Jin-seung Sohn
- 申请人地址: KR Suwon-si
- 专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址: KR Suwon-si
- 优先权: KR10-2002-0087942 20021231
- 主分类号: G02B27/44
- IPC分类号: G02B27/44
摘要:
A hybrid achromatic optical lens having a high numerical aperture whose chromatic aberration is removed and a method for manufacturing the same are provided. The hybrid achromatic optical lens includes a first optical member of a low index of refraction and a second optical member of a high index of refraction. The second optical member is formed on a depressed portion of the first optical member and has a diffractive surface, which is a contact surface of the second optical member with the first optical member and has a plurality of pitches formed on a refractive surface. The method for manufacturing the hybrid achromatic optical lens includes forming a profile of a diffractive surface having a plurality of pitches on a molding die whose one surface is the same as a profile of a refractive surface, forming a depression having the diffractive surface on a first optical member having a low index of refraction using the molding die, and coating a material having a high index of refraction on the depression, grinding a surface of material, and forming a second optical member having a high index of refraction.
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