JP2012089467A5 - Edge light type lighting system - Google Patents

Claims (19)

A light guiding member comprising: a light receiving portion; a light guiding surface for guiding light incident from the light receiving portion; and a light emitting portion for emitting light guided by the light guiding surface to the outside, A light guide member , wherein at least one of the light output portion and the light guide surface has a plurality of grooves substantially parallel to each other ;
At least one light source disposed in the vicinity of the light entrance of the light guide member;
An edge light type lighting device having a. The edge light type illumination device according to claim 1, wherein at least one of cross-sectional shapes, pitches and depths of the plurality of grooves of the light guide member is irregularly different. The edge light type illumination device according to claim 1, wherein an average pitch of a plurality of grooves of the light guide member is 20 μm or less. The edge light type illumination device according to any one of claims 1 to 3, wherein an average depth of the plurality of grooves of the light guide member is 1 to 50 m. The edge light type illumination device according to any one of claims 1 to 4, wherein the plurality of grooves of the light guide member are formed by speckle pattern exposure. The car edge light type lighting device according to any one of claims 1 to 5, wherein the light guiding surface of the light guiding member has the plurality of grooves. It has a curved plate shape having two main surfaces facing each other and having one side convex.
It has the light guide member in which the plurality of grooves are provided only on the concave surface of the two main surfaces,
The edge light type illumination device according to any one of claims 1 to 6. The edge light type illumination device according to any one of claims 1 to 7, wherein the direction of the plurality of grooves of the light guide member is not perpendicular to the light entrance portion. The edge light type illumination device according to any one of claims 1 to 8 , wherein a plurality of the light sources are included. The edge light type illumination device according to claim 9, wherein the plurality of light sources are divided into two or more groups, and each light source is independently controllable per group. The edge light type illumination device according to claim 9, wherein the plurality of light sources are divided into two or more groups, and the color of each light source is different for each group. The edge light type lighting device according to claim 11, wherein the color of each light source includes at least yellow and red. The edge light type lighting device according to claim 11, wherein the color of each light source includes at least yellow and white. The edge light type illumination device according to any one of claims 1 to 13, wherein the light source is a light emitting diode (LED). The edge light type illumination device according to any one of claims 1 to 14, which is a display light. The edge light type illumination device according to claim 11 or 12 , wherein the illumination device doubles as a brake light that emits red light and a direction indicator light that blinks yellow. The edge light type illumination device according to claim 11 or 12 , wherein the illumination device doubles as a rear side lamp that emits red light and a direction indicator light that blinks yellow. The edge light type illumination device according to claim 11 or 13 , wherein the illumination device doubles as a front side lamp that emits white light and a direction indicator light that blinks yellow.   The lighting device according to any one of claims 1 to 18, which is a vehicle lighting device.