| 摘要 |
PROBLEM TO BE SOLVED: To provide a light emitting element module capable of solving the problem of luminance unevenness of light or a difference between lifetimes of light emitting elements.SOLUTION: A light emitting element module 1 is configured such that: respective wiring patterns consist of division pieces 4A1, 4A2, 4B1, 4B2, 4C1, 4C2 for mounting an LED (light emitting element)5 and heat radiation parts 4a1, 4a2, 4b1, 4b2, 4c1, 4c2; a plurality of LEDs 5 are divided into a plurality of groups to be mounted on the division pieces 4A1, 4A2, 4B1, 4B2, 4C1, 4C2 of the respective wiring patterns for each group; and areas of the heat radiation parts 4a1, 4a2 extending from the division pieces 4A1, 4A2 located at a center portion among the plurality of division pieces of the plurality of wiring patterns are set to be larger than areas of the heat radiation parts 4b1, 4b2, 4c1, 4c2 extending from the other division pieces 4B1, 4B2, 4C1, 4C2. |
