Small light-source module and light-source unit
AssigneeIchikoh Industries, Ltd.
InventorsMasaya Ohkohdo, Katsuhiro Murahashi, Kouji Tsunoda
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Abstract
A small light-source module has a module body having a small single-point light source with a limited light-emitting angle mounted thereto, and a reflective surface provided on the module body. The light axis of the light source tilted with respect to the reflective surface, so as to create a substantially fan-shape projected light region on the reflective surface. The outer contour of the reflective surface is also substantially fan-shaped, and the reflective surface has a reflective pattern for reflecting light emitted form the small single-point light source as parallel light.
Claims14
A light source unit comprising a set of arranged small light-source modules, wherein a respective light-source module comprises:
- a point light source having a defined light emission angle range about an optical axis thereof;
- and
- a module body having a reflective surface formed thereon with a reflection pattern for reflecting light received from the point light source to project parallel light, wherein;
- the point light source is mounted to the module body with the optical axis tilted to the reflective surface, to have a light irradiation region substantially fan-shaped on the reflective surface;
- and
- the reflective surface has a contour substantially fan-shaped in correspondence to the light irradiation region.
A small light-source module, comprising:
- a point light source having a defined light emission angle range about an optical axis thereof;
- and
- a module body having a reflective surface formed thereon with a reflection pattern for reflecting light received from the point light source to project parallel light,
- wherein the point light source is mounted to the module body, with the optical axis tilted to the reflective surface, to have a light irradiation region substantially fan-shaped on the reflective surface, and
- the reflective surface has a contour substantially fan-shaped in correspondence to the light irradiation region.
Dependencies are inferred from the claim text.