LIGHT-EMITTING MODULE AND LIGHT-RECEIVING MODULE

摘要

PROBLEM TO BE SOLVED: To suppress widening the caliber of a lens and to increase an acceptance angle of outgoing light from a light source to allow high efficiency and reduction of brightness nonuniform of the outgoing light.

SOLUTION: A plurality of second refraction sides 122 and a plurality of first refraction sides are alternatively arranged at an outgoing side of a lens member 120, and a catoptric light from a plurality of a reflection sides 123 provided at an incoming side is refracted at a predetermined angle at the plurality of second refraction sides 122 to be output. This leads to that an excellent light-emitting module 100 in which a radiation intensity is increased to improve an efficiency without widening the caliber of the lens member 120, and in which the brightness nonuniform of the outgoing light is improved, can be obtained.

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