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US 2004/0170019 A1Published application
Light-emitting diode light source unit
AssigneeNoritsu Koki Co., Ltd.
InventorMasayuki Tamai
Life of this patent
Estimating the term…
Abstract
A light-emitting diode (LED) light source unit includes a printed circuit board mounting LED elements thereon. The LED elements are arranged in the form of an array and mounted on a bottom face of a straight groove defined in the printed circuit board by a groove forming technique. A lateral face of the groove acts as a reflecting face for reflecting beam from the LED elements toward an object to be illuminated.
Claims9
A light source unit comprising:
- a printed circuit board;
- a straight groove formed in the printed circuit board by a groove forming technique;
- a plurality of light-emitting diode (LED) elements arranged in the form of an array and mounted on a bottom face of the groove;
- wherein a lateral face of the groove acts as a reflecting face for reflecting a beam from said each light-emitting diode element toward an object to be illuminated.
1 more element
The light source unit of claim l, wherein said lateral face of the groove is formed as a convex curved face flared open from the bottom face.
A light source unit comprising:
- a printed circuit board including;
- a first printed circuit board, and
- a second printed circuit board superposed on a top face of the first printed circuit board;
- a straight through groove formed in the second printed circuit board by a groove forming technique;
- a mounting face formed in the first printed circuit board to be exposed through the through groove;
- a plurality of light emitting diode (LED) elements arranged in the form of an array and mounted on the mounting face;
- wherein a lateral face of the through groove acts as a reflecting face for reflecting a beam from said each light-emitting diode element toward an object to be illuminated.
4 more elements
Dependencies are inferred from the claim text.