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发明名称
用于多媒体及其他系统之投影透镜及显示装置
摘要
一种广角投影透镜自一影像侧起依序包括:一具有负折射能力之第一透镜组,该第一透镜组具有至少一个非球形表面;一第二透镜组;及一具有正折射能力之第三透镜组。对于该广角投影透镜而言,满足以下条件(1)至(4):|F1/F|≧4.5(条件(1));2.5≦|F2/F|≦6.0(条件(2));3.8≦|F3/F|≦5.0(条件(3));及0.8≦BFL/F≦1.4(条件(4))。一包括该广角投影透镜之光学引擎可实施于一投影显示装置中。
申请公布号
TW200745594
申请公布日期
2007.12.16
申请号
TW096105321
申请日期
2007.02.13
申请人
3M新设资产公司
发明人
卢开昌;派希亚 玛拉 胡斯
分类号
G02B13/18(2006.01);G02B27/18(2006.01);H04N5/74(2006.01)
主分类号
G02B13/18(2006.01)
代理机构
代理人
陈长文;简秀如
主权项
地址
美国
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