发明名称 |
Lens and illumination device having same |
摘要 |
A lens applied to a light emitting element includes a first surface profile and a second surface profile opposite to the first surface profile. The first surface profile defines a first trench facing the light emitting element, and the first trench includes a bottom curved surface serving as a light incident surface. The second surface profile includes a top curved surface, and serves as a light emitting surface. Both the bottom and the top curved surfaces are mirror symmetric to the first suppositional plane P1 (X=0), and mirror asymmetric to the second suppositional plane P2 (Y=0) to cooperatively adjust light from the light emitting element to obtain an asymmetric light field. An illumination device having the lens is further provided.
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申请公布号 |
US8337053(B2) |
申请公布日期 |
2012.12.25 |
申请号 |
US20100795821 |
申请日期 |
2010.06.08 |
申请人 |
CHEN TIEN-PAO;LAI CHIH-MING;FOXSEMICON INTEGRATED TECHNOLOGY, INC. |
发明人 |
CHEN TIEN-PAO;LAI CHIH-MING |
分类号 |
F21V3/00 |
主分类号 |
F21V3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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