Patent ID: 9121981
Filing Date: 2015-09-01
Classification: G02B,G02F

Abstract:
1. A light unit, comprising: a printed circuit board equipped with a plurality of LEDs; and a light guide member equipped with mounting grooves to house the LEDs, the light guide member comprising one surface and another surface facing the one surface; a first density pattern area and a second density pattern area having higher density than that of the first density pattern area being formed in the one surface; and the second density pattern being disposed in an area closer to the light emitting surface of the LED than is the first density pattern area, wherein on another surface of the light guide member, a third density pattern area and a fourth density pattern area with higher pattern density than the third density pattern area are formed; and the third density pattern area is disposed in an area closer to the light emitting surface of the LED than is the fourth density pattern area.