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International Journal of Photoenergy
Volume 2014, Article ID 957079, 6 pages
http://dx.doi.org/10.1155/2014/957079
Research Article

The Development of LED-Based Dental Light Using a Multiplanar Reflector Design

1Department of the Mechanical and Automation Engineering, National Kaohsiung First University of Science and Technology, No. 1 University Road, Yanchao District, Kaohsiung City 824, Taiwan
2Institute of Engineering Science and Technology, National Kaohsiung First University of Science and Technology, No. 1 University Road, Yanchao District, Kaohsiung City 824, Taiwan

Received 4 June 2014; Revised 28 July 2014; Accepted 13 August 2014; Published 18 November 2014

Academic Editor: Mark van Der Auweraer

Copyright © 2014 Chi-Chang Hsieh and Yan-Huei Li. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A multiplanar reflector was designed to enhance the application efficiency of light-emitting diode (LED) light sources that can be employed as LED-based dental lights. This study used a high-power LED developed by Nichia, that is, a single LED capable of providing a total luminous flux of 120 lm, as the primarily light source to design and develop an LED-based dental light. This LED complies with the international standards and regulations stipulated in ISO 9680:2007. The light spots produced by the prototype were rectangular, with a length of 200 mm and a width of 100 mm. These light spots achieved maximum illumination of 12,000 lux. The use of LEDs can reduce energy consumption from 50 W to 3 W, providing an energy saving of more than 90%.