发明名称 |
Light flux controlling member, light emitting device and illumination apparatus |
摘要 |
A light flux controlling member has an incidence region and an emission region. The incidence region is assumed to have a plurality of virtual quadrangles that are disposed in such a manner that one fits into another, and have the same number of apexes as one another, and includes a plurality of convex parts each of which has a ridge line along a first virtual straight line that connects two adjacent apexes of the virtual quadrangle, and a plurality of wall portions each of which is disposed along a second virtual straight line that connects respective corresponding apexes of the virtual quadrangles. The wall portion is disposed continuously between a connection portion of the convex parts at an innermost side and a connection portion of the convex parts at an outermost side in the second virtual straight line. |
申请公布号 |
US9329455(B2) |
申请公布日期 |
2016.05.03 |
申请号 |
US201414226863 |
申请日期 |
2014.03.27 |
申请人 |
Enplas Corporation |
发明人 |
Saito Tomohiro |
分类号 |
F21V5/00;G03B15/05;G02B19/00 |
主分类号 |
F21V5/00 |
代理机构 |
Brundidge & Stanger, P.C. |
代理人 |
Brundidge & Stanger, P.C. |
主权项 |
1. A light flux controlling member that controls distribution of light that is emitted from a light emitting element, comprising:
an incidence region that allows the light that is emitted from the light emitting element to be incident thereon; and an emission region that emits light that is incident on the incidence region, wherein the incidence region includes n wall portions that are provided to extend to a central portion from respective n apexes of a virtual n-sided polygonal shape, and a plurality of convex parts each of which has a ridge line that connects two of the wall portions adjacent to each other, the plurality of convex parts are each disposed in such a manner that a valley portion is formed between two of the convex parts adjacent to each other, the wall portion is disposed continuously at least between a connection portion of the convex parts located at an innermost side and a connection portion of the convex parts located at an outermost side, and the ridge line is connected to an apex of the wall portion, or a side surface portion of the wall portion. |
地址 |
Saitama JP |