发明名称 ILLUMINATION APPARATUS
摘要 An illumination apparatus includes a light emitting unit, a first optical member arranged in front of the light emitting unit and including a first fresnel shape having condensing action, and a second optical member including a second fresnel shape having light diffusing action so as to face the first fresnel shape of the first optical member.
申请公布号 US2015286113(A1) 申请公布日期 2015.10.08
申请号 US201514666661 申请日期 2015.03.24
申请人 CANON KABUSHIKI KAISHA 发明人 Sugawara Azusa
分类号 G03B15/05 主分类号 G03B15/05
代理机构 代理人
主权项 1. An illumination apparatus comprising: a light emitting unit; a first optical member arranged in front of the light emitting unit and including a first fresnel shape having condensing action; and a second optical member including a second fresnel shape having light diffusing action so as to face the first fresnel shape of the first optical member.
地址 Tokyo JP