کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
732505 | 893247 | 2012 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A compact bike head lamp design based on a white LED operated at one watt A compact bike head lamp design based on a white LED operated at one watt](/preview/png/732505.png)
A design of a compact bike head lamp meeting the K mark regulation based on a white LED by Cree XP-C is presented. The proposed design contains three parts, one is a parabolic mirror, another is a flat mirror and the other is a lens. The design performed a contrast of 66.7 across the cut-off line by the K-mark regulation, and a prototype fabricated by a simple CNC machining was measured a contrast of 12.4 across the cut-off line. The successful design requests the LED operated at only 1 W, and it enables an user to operate the lamp longer with energy saving.
► Applying 1W LED for bike head lamp meeting the K mark regulation.
► A special design for getting high-contrast ratio across the requested cut-off line.
► A compact prototype demonstrated the successful design.
Journal: Optics & Laser Technology - Volume 44, Issue 4, June 2012, Pages 1172–1175