外文翻译--基于汽车尾灯发光二极管的光学设计

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1、文献出处：文献出处： Domhardt A, Rohlfing U, Klinger K, et al. Optical design of LED-based automotive tail lampsJ. Proceedings of SPIE - The International Society for Optical Engineering, 2007, 6670. Optical Design of LED-based Automotive Tail Lamps Andr Domhardt (a), Udo Rohlfing (b), Karsten Klinger (a), Ka

2、rl Manz (a), Dieter Koo (a), Uli Lemmer (a) a) University of Karlsruhe (TH), Light Technology Institute, Kaiserstr. 12, D-76131 Karlsruhe b) University of Applied Sciences Darmstadt, Sch fferstra e 3, D-64295 Darmstadt ABSTRACT The application of ultra-bright monochromatic and white High-Power-LEDs

3、in the range of automotive lighting systems is now state of the art. These LEDs offer new possibilities in optical design and engineering within different fields of automotive lighting, e.g., tail lamps, signal lamps, headlamps and interior lighting. This contribution describes the process of the op

4、tical design of an automotive LED tail lamp based on a practical example. We will elaborate the principal geometric approach, the radiometric conditions and the optical design by using standard and advanced mathematical optimization methods. Special attention will be paid to the following topics: ef

5、ficient light coupling from the LED into the optical device, adaptation of the illuminance and optimization with respect to the requirements from SAE/ECE regulations. It will be shown that the development of LED-lamps requires the complex interaction of several factors. The challenge for the optical

6、 designer is to fulfill the technical demands while also considering the appearance of the final product desired by the customer. Further design specifications emerge from the electrical and thermal layout of the lamp. Keywords: Optical design, tail lamp, LED-lamp 1. INTRODUCTION The increasing usage of LEDs in automotive signaling lamps combined with new optical components such as light guides, pattern-free cover lenses or free-form reflectors revolutionizes their styling appearanc