发明名称 |
LIGHT QUANTITY CONTROL MEMBER, SURFACE LIGHT SOURCE UNIT AND DISPLAY DEVICE |
摘要 |
A light quantity control member includes a light diffusion part formed by light diffusion members for diffusing light from a LED. The light diffusion part includes a first rectangular area positioned at the center of light flux from the LED and second rectangular areas positioned around the first rectangular area. The first rectangular area has an occupied area of the light diffusion members larger than any other second rectangular areas. If respective distances between a first center of the first rectangular area and respective second centers of the second rectangular areas are equal to each other, the occupied areas of the diffusion members of the second diffusion areas become equal to each other. The longer the distance between the first center of the first rectangular area and the second center of the second rectangular area gets, the smaller the occupied area of the light diffusion members of the second rectangular area becomes. |
申请公布号 |
US2011051044(A1) |
申请公布日期 |
2011.03.03 |
申请号 |
US20100874753 |
申请日期 |
2010.09.02 |
申请人 |
VICTOR COMPANY OF JAPAN, LIMITED |
发明人 |
SEGAWA MASARU |
分类号 |
G02F1/13357;F21V7/00;F21V11/00 |
主分类号 |
G02F1/13357 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|