Optical Design of Multimedia-Embedded LED Dental Astral Lighting using the Reverse Dual Reflector Method

Light-emitting diodes (LED) have many advantages for dental astral lighting because of their high colorrendering index (CRI), low power consumption, light weight and longer life. A dental astral lamp isspecially designed and simulated for securing the extra space for installing a multimedia display that willbe helpful for treating young patients. The optical system using the reverse dual reflection method consistedof four illumination modules disposed at the four corners of the dental astral lamp, and each modulecomprises a high power LED, an elliptical mirror, and a multifacet reflector assembly using eight cylindricalmirrors. It is shown that the required illuminance, illumination pattern, and the illumination uniformityare well satisfied KCI Citation Count: 0