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公开(公告)号:US20070195263A1
公开(公告)日:2007-08-23
申请号:US11677246
申请日:2007-02-21
申请人: Akihiro SHIMIZU , Kota NISHI , Yoshitaka Goto , Takanori MIYAZAWA
发明人: Akihiro SHIMIZU , Kota NISHI , Yoshitaka Goto , Takanori MIYAZAWA
IPC分类号: G02C7/06
CPC分类号: G02B3/10 , B29D11/00028 , B29D11/0049
摘要: A multifocal lens includes a group including M layered lenses. M-kinds (M is an integer of two or more) of lens materials having glass deformation point temperatures of At1, At2, . . . , AtM, are used and diluted by a heat press method. A contact surface of an N−1th lens (N is an arbitrary integer of two or more and M or less) contacted with an Nth lens is a concave face, a contact surface of the Nth lens contacted with the N−1th lens is a convex face. The glass deformation point temperatures have a relation of AtN-1>AtN.
摘要翻译: 多焦点透镜包括包括M个分层透镜的组。 具有玻璃变形点温度为1/2,2/2的透镜材料的M种(M为2以上的整数)。 。 。 通过热压法使用和稀释。 与第N透镜接触的第N-1个透镜(N为2以上且M以下的任意整数)的接触面为凹面,与第N-1透镜接触的第N透镜的接触面为 凸面。 玻璃变形点温度具有在N N 1 SUB>的关系。