LINEAR LIGHT SOURCE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a linear light source device capable of providing a uniform irradiation distribution even when the interval between light emitting elements is increased, and contributing to miniaturization of a device for mounting it.

SOLUTION: This linear light source device is provided with a long board 2, the light emitting elements 3 mounted on the board 2 in a linear form, and resin sealing parts 4 sealing the light emitting elements 3 and having optical transparency. A refraction part 5 having optical transparency and having an inclined surface 5a having a connection surface to the resin sealing part 4 descending toward the light emitting element 3 and a cross-sectionally circular inclined surface 5b descending toward a tip part from the resin sealing part 4 is formed on each of both sides of the resin sealing part 4.

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