| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a COB type light emitting module which can form an approximately round light distribution pattern, and can simplify laying of a bonding wire. <P>SOLUTION: A plurality of light emitting groups 21-30 on a module substrate 2 include a plurality of LED arrays 31 formed of a plurality of chip-like LEDs 32 fixed on the substrate 2 in line and bonding wires for connecting the LEDs. The number of LEDs included in the respective LED arrays 31 are same. The respective groups 21-30 are arranged to occupy a rectangle region on the substrate 2 by arranging the plurality of LED arrays 31 in a direction orthogonal to a direction the arrays extend. The respective light emitting groups include two different kinds of light emitting groups in which lengths of the arrays 31 included therein in an arrangement direction are different. Lengths in arrangement directions of the LED arrays 31 of the light emitting groups 21, 22, 24, 25, 26, 27, 29, 30, which are arranged on both sides of the light emitting groups 23, 28 having the longest length in the arrangement direction of the LED arrays 31 out of the various light emitting groups, become shorter as the light emitting groups are arranged farther from the light emitting groups having the longest length. <P>COPYRIGHT: (C)2010,JPO&INPIT |
