发明名称 |
Method of determining reflective surface of reflector in vehicle lamp |
摘要 |
In a method of determining the shape of reflective surface 10a of reflector 1 in the structure in which the basic shape is a free-formed surface 20 satisfying shape constraints or the like and in which reflective surface elements are assigned to an array of segments obtained by dividing the free-formed surface 20, evaluation and selection of the surface shape is carried out at two stages; i.e., evaluation and selection according to light incidence angles at the stage of creation of the free-formed surface 20 and evaluation and selection according to light reflecting regions at the stage of creation of a reflective surface consisting of a plurality of reflective surface elements. This reduces nonuniformity of in-surface light distribution during on periods of a lamp, in the reflective surface obtained, and thus improves design efficiency thereof.
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申请公布号 |
US2001007528(A1) |
申请公布日期 |
2001.07.12 |
申请号 |
US20010754300 |
申请日期 |
2001.01.05 |
申请人 |
NATSUME KAZUNORI;MAEDA MASAHIRO |
发明人 |
NATSUME KAZUNORI;MAEDA MASAHIRO |
分类号 |
F21S8/10;B60Q1/04;F21V7/00;F21V7/04;F21V7/09;F21W101/02;(IPC1-7):F21V7/00 |
主分类号 |
F21S8/10 |
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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