| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical system device which further efficiently parallelizes irradiation light, and an LED module.SOLUTION: An optical system device parallelizes and emits irradiation light irradiated from a plurality of light sources arranged on a predetermined plane, and comprises: a first CPC array in which a plurality of first CPCs opening on an incident side and an emission side of the irradiation light, and opening widely on the emission side of the irradiation light are arranged according to the plurality of light sources; a second CPC array in which a plurality of second CPCs located on the emission side to the first CPC array, opening on the incident side and the emission side of the irradiation light, opening widely on the emission side of the irradiation light, and being smaller in size than those of the first CPCs are arranged; and a light pipe array in which a plurality of light pipes located on the incident side to the second CPC array and on the emission side to the first CPC array, opening on the incident side and the emission side of the irradiation light, and opening widely on the incident side of the irradiation light are arranged according to the second CPC array. |
