This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
TIR Reflectors for Rear Lamps
Technical Paper
2001-01-0456
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2001 World Congress
Language:
English
Abstract
Spherical, aspherical Fresnel lenses and pillow lenses have an extensive use in rear lamp design. These systems, using refraction or TIR (Total Internal Reflection), allow to control the geometrical spread and the photometry of the luminous flux.
A transparent system guarantees a homogeneous and uniform light distribution, attractive appearance, lower costs and reduced overall dimensions.
Nevertheless a simple lens system hasn't enough efficiency in collecting luminous flux. Generally the solid angle subtended by lens is small and to improve the optical efficiency, designers use reflectors.
TIR reflectors are transparent segmented surfaces, which match the traditional lens performances with high efficiency and new style.
This paper discusses the principles, features and performances of TIR reflectors. It also presents the new software developed to design these systems, showing the achieved results.
Recommended Content
Authors
Citation
Salvatore, P., "TIR Reflectors for Rear Lamps," SAE Technical Paper 2001-01-0456, 2001, https://doi.org/10.4271/2001-01-0456.Also In
References
- Koichi Sakakibara, T. Asai, Y. Ozawa, A. Nagakura, N Kojima, S. Igaras - Development of Smoothly Curved Fresnel Lens SAE Technical Paper 900056
- Erismann Fernando Design of a plastic aspheric Fresnel lens with a spherical shape Opt. Eng 36 4 988 991 April 1997
- Hecht Eugene Optics Addison Wesley Longman, Inc