Design of uniform and long distance illumination

Xie Hongbo; Jiang Min; Yang Lei; Meng Qingbin; Fang Chunlun

doi:10.5768/JAO201738.0401005

Journal of Applied Optics > 2017 > 38(4): 543-548. > DOI: 10.5768/JAO201738.0401005

Xie Hongbo, Jiang Min, Yang Lei, Meng Qingbin, Fang Chunlun. Design of uniform and long distance illumination[J]. Journal of Applied Optics, 2017, 38(4): 543-548. DOI: 10.5768/JAO201738.0401005

Citation:

Xie Hongbo, Jiang Min, Yang Lei, Meng Qingbin, Fang Chunlun. Design of uniform and long distance illumination[J]. Journal of Applied Optics, 2017, 38(4): 543-548. DOI: 10.5768/JAO201738.0401005

Citation:

Xie Hongbo, Jiang Min, Yang Lei, Meng Qingbin, Fang Chunlun. Design of uniform and long distance illumination[J]. Journal of Applied Optics, 2017, 38(4): 543-548. DOI: 10.5768/JAO201738.0401005

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Design of uniform and long distance illumination

College of Precision Instrument and Opto-electronics Engineering, Key Laboratory of Opto-electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China

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Received Date: November 07, 2016
Revised Date: January 15, 2017

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Abstract

Abstract

In view of shortcomings of existing LED lighting system with large volume, complicated structure and short working distance, a new design method of single LED projection system with light weight, good uniformity and long distance illumination is proposed. Based on the theory of illumination design, combined with non-imaging design and imaging design method, a projection lighting system composed of single high power LED, condenser lens, aperture stop and projection objective is designed. Firstly, the condenser concentrates lights emitting from LED and converges them to lightening plane, and then objective lens project light spot at lightening plane onto receiving surface with specified distance. The system uses a full-transmission structure, easy to process and install.Single high-power LED as a light source can effectively reduce the system size and mass. Experimental results show that this system can form illumination with uniformity of more than 90% in the range of 3 m~3 km.The system ensure good image quality and distortion of projection plane being less than 5%, which can satisfy requirements of uniform illumination and projection over a long distance.
- LED illumination design,
- long distance projection,
- illumination uniformity,
- Kohler's illumination

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References (14)

References

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Design of uniform and long distance illumination