Backlight refraction lens
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 30, 2016
Grant Date -
May 26, 2016
app pub date -
Mar 18, 2015
filing date -
Nov 24, 2014
priority date (Note) -
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Abstract
A 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.
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