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公开(公告)号:US08820979B2
公开(公告)日:2014-09-02
申请号:US13423827
申请日:2012-03-19
申请人: Chang Mo Lee , Ki Un Lee , Sang Ho Yoon , Dae Il Seok , Seung Gyun Jung , Joung Wook Park , Jin Pyo Hong , Jae Yeong Joo , Gi Hoon Kim , Sang Bin Song , Bo Hyun Jo
发明人: Chang Mo Lee , Ki Un Lee , Sang Ho Yoon , Dae Il Seok , Seung Gyun Jung , Joung Wook Park , Jin Pyo Hong , Jae Yeong Joo , Gi Hoon Kim , Sang Bin Song , Bo Hyun Jo
IPC分类号: F21V5/04 , F21S13/10 , H01L33/58 , G02B19/00 , F21W131/103 , F21Y101/02
CPC分类号: G02B19/0061 , F21V5/04 , F21W2131/103 , F21Y2115/10 , G02B19/0014 , H01L33/58 , Y02B20/72
摘要: A lens is provided in an asymmetric shape including at least two curved surfaces with different light distribution angles. Therefore, uniformity ratio of illuminance and coefficient of utilization (CU) may be increased while reducing dazzle. When a lighting apparatus including the lens is used as a street light, light directly incident to a driver is minimized, thereby reducing dazzle to the driver. During a night drive, brightness at a far forward position of the driver may be increased. In addition, light emitted toward a street may be increased while reducing light emitted toward a sidewalk. As a result, uniformity ratio of illuminance and coefficient of utilization (CU) may be increased. Also, light pollution may be reduced.
摘要翻译: 以不对称形状设置透镜,其包括具有不同光分布角的至少两个弯曲表面。 因此,可以增加照度的均匀性和使用系数(CU),同时减少眩目。 当使用包括透镜的照明装置作为路灯时,直接入射到驾驶员的光被最小化,从而减少对驾驶员的眩目。 在夜间驾驶中,可能会增加驾驶员前方位置的亮度。 此外,朝向街道发射的光可以增加,同时减少朝向人行道发射的光。 结果,可以增加照度的均匀性和使用系数(CU)。 此外,光污染可能会减少。