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发明名称
绕射光学系统及光学机器
摘要
申请公布号
TWI476452
申请公布日期
2015.03.11
申请号
TW097147303
申请日期
2008.12.05
申请人
尼康股份有限公司
发明人
铃木宪三郎
分类号
G02B27/42
主分类号
G02B27/42
代理机构
代理人
陈传岳 台北市大安区仁爱路3段136号13楼;郭雨岚 台北市大安区仁爱路3段136号13楼
主权项
一种绕射光学系统,系包含绕射光学元件,其特征为:前述绕射光学元件具有:凹透镜成分,其系具有第一绕射光学面;及光学构件,其系具有第二绕射光学面;前述凹透镜成分与前述光学构件系依前述第一绕射光学面与前述第二绕射光学面彼此相对而配置,将前述凹透镜成分之光轴上的厚度设为t,将前述绕射光学系统之焦点距离设为f时,满足以下数学式0.003<t/f<0.3之条件,此外,将前述凹透镜成分之焦点距离设为fN(<0),将前述绕射光学系统之焦点距离设为f时,满足以下数学式-8.5<fN/f<-0.3之条件。
地址
日本
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