发明名称 |
Light reflector, planar light source and illumination device using the same |
摘要 |
A light reflector comprising a resin film having a reflection angle peak ratio [i.e. (reflection peak value when a light ray is applied at an angle of 45° to the perpendicular line of the reflection surface)/(reflection peak value when a light ray is applied at an angle of 15° to the perpendicular line of the reflection surface)] of from 1.3 to 10, and a specular reflectance [i.e. (reflectance)−(diffuse reflectance)] of from 1.4% to 10%. This light reflector can prevent generation of a bright line even when it is used in an illumination device having a plurality of light sources. |
申请公布号 |
US8408774(B2) |
申请公布日期 |
2013.04.02 |
申请号 |
US20060092154 |
申请日期 |
2006.10.30 |
申请人 |
UEDA TAKAHIKO;KOYAMA HIROSHI;NAGAKUSA HARUTO;YUPO CORPORATION |
发明人 |
UEDA TAKAHIKO;KOYAMA HIROSHI;NAGAKUSA HARUTO |
分类号 |
F21V7/04 |
主分类号 |
F21V7/04 |
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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