| Title |
The Development of Secondary Optics Design Method for LED |
| Authors |
Sueng-Kyun Jung ; Dae-Il Suk ; Hwa-Young Shin ; Chang-Mo Lee ; Hoon Kim |
| Keywords |
LED ; Optics ; Lens ; Prism ; Focal smear |
| Abstract |
Design methods of LED optic system includes point source assumption and imaginary focus approaches. However, these methods make significant error if the position of LED approachs that of optic system. This paper suggests a new design approach that LED is equally divided, light distribution of each division is predicted and confirmed through reverse tracing of light wave, and then each divided segment is separately designed, Using new design method, two kinds of example optic system were designed and light distribution and efficiency of the systems were evaluated. |