发明名称 |
BACKLIGHT REFRACTION LENS |
摘要 |
A the backlight refraction lens includes a body formed with an incident face and an emergent face, wherein the incident face has a raised periphery and an axis formed with an angle with an axis of the body, the angle, between the axis of the incident face and the axis of the body, set between 35 degrees to 65 degrees such that the ray light going into the body along an incident angle within 15-45 degrees is mostly projected from the emergent face after being refracted. The backlight refraction lens promotes the visibility and identification of objects on the outdoor kanban board when the outdoor kanban board is in a backlight condition such that the conventional LEDs are unnecessary to the outdoor kanban board that has a series of backlight refraction lens in accordance with the present invention mounted thereon. |
申请公布号 |
EP3023817(A1) |
申请公布日期 |
2016.05.25 |
申请号 |
EP20150000983 |
申请日期 |
2015.04.07 |
申请人 |
HU, LIEH-HSIUNG |
发明人 |
LIN, YU-XIANG;CAI, SHUEI-TIAN;HU, LIEH-HSIUNG |
分类号 |
G02B3/08;E01F9/615;F21S8/10;F21V5/04;G02B19/00 |
主分类号 |
G02B3/08 |
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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