| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light-emitting device capable of obtaining illumination light with a more uniform brightness by a simple structure. <P>SOLUTION: A plurality of surface-mounting light-emitting diode elements are mounted on a circuit board, and a lens is arranged so as to cover a light-emitting face side of each light-emitting diode element. At least one of the lenses is put in a slanted state so that its optical axis passes the center of the corresponding surface-mounting light-emitting diode element and does not correspond to an axis perpendicular to the circuit board to control directivity of light emitted to the outside through the lens. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
