OPTICAL LENS

摘要

Disclosed is an optical lens having an incident surface on which the light emitted from a light emitting diode is incident and having a concave portion into which the light is received and an emitting surface emitting the light incident on the incident surface therethrough, the optical lens including: a plurality of refraction prevention portions protruded unitarily from the emitting surface to allow the light around a light axis emitted through the emitting surface to travel straight, without having any refraction, each refraction prevention portion having an orthogonal surface formed thereon to the advancing direction of the light incident through the incident surface.

主权项

1. An optical lens having an incident surface 100 on which the light emitted from a light emitting diode 500 is incident and having a concave portion into which the light is received and an emitting surface 200 emitting the light incident on the incident surface 100 therethrough, the optical lens comprising: a plurality of refraction prevention portions 400 protruded unitarily from the emitting surface 200 to allow the light around a light axis L emitted through the emitting surface 200 to travel straight, without having any refraction, each refraction prevention portion having an orthogonal surface 410 formed thereon to the advancing direction of the light incident through the incident surface 100, so that the light emitted through the orthogonal surface 410 of each refraction prevention portion 400 travels straight in the direction of the incidence through the incident surface 100, without having any refraction.