• Optoelectronic Technology
  • Vol. 41, Issue 1, 39 (2021)
Tian TANG1, Huijuan LI1, Le ZHANG1, Peng JIN2..., Guoqiang LYU1 and Qibin FENG3|Show fewer author(s)
Author Affiliations
  • 1School of Instrumentation and Opto⁃electronics Engineering, Hefei University of Technology, Hefei 230009, CHN
  • 2Anhui XINRUIDA Technology Co., Ltd.,Hefei 30601,CHN
  • 3Academy of Photoelectric Technology, Hefei University of Technology, Hefei 20009, CHN
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    DOI: 10.19453/j.cnki.1005-488x.2021.01.007 Cite this Article
    Tian TANG, Huijuan LI, Le ZHANG, Peng JIN, Guoqiang LYU, Qibin FENG. Lens Design for Large Distance⁃height Ratio Backlight Unit[J]. Optoelectronic Technology, 2021, 41(1): 39 Copy Citation Text show less
    Schematic of r distribution of the target surface
    Fig. 1. Schematic of r distribution of the target surface
    Design idea of double freeform surface lens
    Fig. 2. Design idea of double freeform surface lens
    Surface design based on uniform illumination distribution
    Fig. 3. Surface design based on uniform illumination distribution
    Simulation results under uniform illuminance distributions
    Fig. 4. Simulation results under uniform illuminance distributions
    Schematic of uniformity region
    Fig. 5. Schematic of uniformity region
    Simulation results of uniformly distributed array
    Fig. 6. Simulation results of uniformly distributed array
    Design illuminance distribution of "parallel-down"
    Fig. 7. Design illuminance distribution of "parallel-down"
    Comparison of illuminance curves of "parallel-down" distributions
    Fig. 8. Comparison of illuminance curves of "parallel-down" distributions
    Design illuminance distribution of "up-parallel"
    Fig. 9. Design illuminance distribution of "up-parallel"
    Comparison of illuminance curves of "up-parallel" distribution
    Fig. 10. Comparison of illuminance curves of "up-parallel" distribution
    Illuminance distribution of "up-parallel-down" design
    Fig. 11. Illuminance distribution of "up-parallel-down" design
    Comparison of illuminance curves of "up-parallel-down" distribution
    Fig. 12. Comparison of illuminance curves of "up-parallel-down" distribution
    Optimized design of illuminance distribution
    Fig. 13. Optimized design of illuminance distribution
    Optimization of illuminance distribution and simulation results
    Fig. 14. Optimization of illuminance distribution and simulation results
    Schematic of light tracing
    Fig. 15. Schematic of light tracing
    Surface profile of bottom microstructure
    Fig. 16. Surface profile of bottom microstructure
    Array simulation results after optimization of bottom surface
    Fig. 17. Array simulation results after optimization of bottom surface
    照度分布水平方向/(%)对角线方向/(%)
    均匀分布46.2728.05
    优化分布77.3070.25
    调整底面后96.2488.96
    Table 1. Comparison of illuminance uniformity of different distribution simulations
    Tian TANG, Huijuan LI, Le ZHANG, Peng JIN, Guoqiang LYU, Qibin FENG. Lens Design for Large Distance⁃height Ratio Backlight Unit[J]. Optoelectronic Technology, 2021, 41(1): 39
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