Laser light source device and parking indicator light system including same
AssigneeSeongwon Tps Inc.
InventorSa Hyun Min
Life of this patent
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Abstract
A laser light source device of the present invention is disclosed. More specifically, the present invention relates to a laser light source device for emitting a deflected light so as to form a specific shape by outputting a laser beam through a point light source, and a parking indicator light system including the same. According to an embodiment of the present invention, an indicating line according to a road shape is projected and displayed on a road surface within an underground parking lot such that a driver may easily recognize traveling and parking directions of a vehicle on a road with a limited road width, narrow view, and dim illumination.
Claims9
A laser light source device comprising:
- a light source unit for outputting a laser beam of a first light path traveling straight to the front in a point form;
- an optical unit being disposed on the first light path and comprising a lens having a plurality of prism patterns arranged in a line, wherein the lens deflects the light of the first light path into light of a second light path in a line shape;
- and
- a controller for-varying a curvature of the line shape by changing a slope of the lens, wherein the prism patterns are formed on any one surface of the lens;
- and wherein the controller turns on or off the light source unit in response to a control signal included an approach or entry of a vehicle sensed by a sensor.
A parking indicator light system comprising:
- at least one laser light source device comprising a lens having a plurality of prism patterns arranged in a line, wherein the lens deflects a point form laser beam of a first light path traveling straight to the front into light of a second light path in a line shape;
- and
- a control device connected with at least one sensor and electrically connected with the laser light source device so as to control displaying of an indicating line when a vehicle enters or approaches a road surface, wherein the prism patterns are formed on any one surface of the lens and the laser light source device varies a curvature of the indicating line by changing a slope of the lens.
Dependencies are inferred from the claim text.