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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 14 — May. 10, 2014
  • pp: 3110–3118

Investigation of pitch and angle in the gradual-triangle lenticular lens for point-blank LED fog lamp

Hsi-Chao Chen and Chi-Hao Yang  »View Author Affiliations


Applied Optics, Vol. 53, Issue 14, pp. 3110-3118 (2014)
http://dx.doi.org/10.1364/AO.53.003110


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Abstract

The effects of different pitch and angle of gradual-triangle lenticular lens for the point-blank LED fog lamp were investigated under the standard of ECE R19. The novel LED fog lamp was assembled from a point-blank LED light source, a parabolic reflector, and a gradual-triangle lenticular lens. Light tracing analysis was used for the design of the gradual-triangle lenticular lens. The pitch, which varied from 1 to 6 mm, and the apex angle, which changed from 5 to 32 deg, were both investigated in regard to the gradual-triangle lenticular lens. The optimum pitch was 5 mm, and the efficiency of the lamp system and lenticular lens could reach 93% and 98.1% by simulation, respectively. The results of experiment had over 94%, which is similar to that of simulation by normalized cross correlation (NCC) for the light intensity.

© 2014 Optical Society of America

OCIS Codes
(080.2740) Geometric optics : Geometric optical design
(230.3670) Optical devices : Light-emitting diodes
(220.2945) Optical design and fabrication : Illumination design

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: March 12, 2014
Revised Manuscript: April 9, 2014
Manuscript Accepted: April 11, 2014
Published: May 9, 2014

Citation
Hsi-Chao Chen and Chi-Hao Yang, "Investigation of pitch and angle in the gradual-triangle lenticular lens for point-blank LED fog lamp," Appl. Opt. 53, 3110-3118 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-14-3110


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