Optical structure

The utility model discloses an optical structure. The optical structure is composed of a bottom face, a first incident face/a first refraction face, a second incident face/a second refraction face, a control face, a first exit face/a third refraction face, a third exit face/a fifth refraction face, a second exit face/a fourth refraction face and a reflection face, wherein the first incident face/the first refraction face and the second incident face/the second refraction face are arranged on the bottom face, the control face is arranged at the corresponding position above the bottom face, the first exit face/the third refraction face and the third exit face/the fifth refraction face upwards extend from the bottom of the control face, the second exit face/the fourth refraction face is connected to the control face, and the reflection face is connected to the bottom face and the second exit face/the fourth refraction face. The optical structure is used for adjusting the angle and the density degree of light beams; besides the improvement on the structure of a traditional optical structure, in order to achieve the higher light exiting efficiency and the smaller semi-light-strength angle, the condensation degree of light can be changed, the light exit angle is effectively controlled, and the light beams can be shrunk or enlarged more evenly.