Secondary Optical Lens Design for Beam Divergence of Light Emitting Diode

2017 ◽  
Vol 31 (8) ◽  
pp. 67-71
Author(s):  
Jong-Tae Kim
Keyword(s):  
Light Emitting Diode ◽  
Beam Divergence ◽  
Lens Design ◽  
Optical Lens ◽  
Light Emitting

Side-Emitting LED Lens Design for Generating Planar Lighting Source

2007 ◽  
Vol 364-366 ◽  
pp. 152-155
Author(s):  
Yi Ting Sun ◽  
Yu Nan Pao ◽  
T.H. Lin
Keyword(s):  
Horizontal Plane ◽  
Light Emitting Diode ◽  
Design Procedure ◽  
Normal Direction ◽  
Optical Simulation ◽  
Lens Design ◽  
Simulation Tool ◽  
Light Emitting ◽  
Led Light ◽  
Simulation Results

Side-emitting LED (Light emitting diode) modulation lens is proposed here for generating planar lighting source that can be applied in many fields like LCD backlight or general lighting. The light emitted form the LED light source will be modulated by the proposed lens by the mechanism of multi-refraction. The optical simulation tool ASAP was used during the design procedure. Optimal lens dimension was designed to module 70 percent of the emitting energy to the angle range from 70 degree to 110 degree, the angle was calculated from the normal direction of the LED horizontal plane to the direction of the emitting light. The lens prototype was also fabricated and the optical performance was measured to verify the simulation results. Finally, the comparison between the optical simulation and the experiment performances is also disclosed.

Aspherical lens design for real light-emitting diode with flux compensation through angular flux mapping

2021 ◽  
Vol 60 (09) ◽  
Author(s):  
Kuo-Hao Liao ◽  
Ching-Cherng Sun ◽  
Chi-Shou Wu ◽  
Shih-Kang Lin ◽  
Tsung-Hsun Yang ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Lens Design ◽  
Light Emitting ◽  
Aspherical Lens ◽  
Flux Mapping

Micro lens design for efficiency improvement of red organic light-emitting diode

2012 ◽  
Vol 61 (9) ◽  
pp. 1532-1535
Author(s):  
Hyun-Chul Ki ◽  
Doo-Gun Kim ◽  
Seon-Hoon Kim ◽  
U-Ra Jung ◽  
Sang-Gi Kim ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Lens Design ◽  
Efficiency Improvement ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Micro Lens

Freeform lens design for light-emitting diode uniform illumination by using a method of source–target luminous intensity mapping

2015 ◽  
Vol 54 (28) ◽  
pp. E146 ◽  
Author(s):  
Jin-Jia Chen ◽  
Ze-Yu Huang ◽  
Te-Shu Liu ◽  
Ming-Da Tsai ◽  
Kuang-Lung Huang
Keyword(s):  
Light Emitting Diode ◽  
Luminous Intensity ◽  
Lens Design ◽  
Uniform Illumination ◽  
Light Emitting ◽  
Intensity Mapping ◽  
Freeform Lens

Compact collimators designed with point approximation for light-emitting diodes

2016 ◽  
Vol 50 (2) ◽  
pp. 303-315
Author(s):  
T Luo ◽  
G Wang
Keyword(s):  
Design Method ◽  
Light Emitting Diode ◽  
Lens Design ◽  
Beam Angle ◽  
Optical Efficiency ◽  
Light Emitting ◽  
Chip Size ◽  
Practical Performance ◽  
Freeform Lens ◽  
Collimating Lens

We present a novel freeform lens design method for application to light-emitting diode collimating illumination. The lens is designed with a point-source assumption to form compact collimators. The method is derived from a basic geometric-optics analysis and the associated construction approach. By using this method, a compact collimating lenses with an aspect ratio = 0.181 is developed. With optimization of initial parameters, a highly collimating lens for a Cree XP-E LED (chip size: 1.2 mm × 1.2 mm) with an optical efficiency of 88.5% under a beam angle of ± 1.9° is constructed by simulation. To verify the practical performance of the lens, a prototype of the collimator lens is also made. This has light distribution compatible with the simulation results.

Simulation and Optimization of Lens Design for Single Light Emitting Diode

2013 ◽  
Vol 11 (2) ◽  
pp. 342-347 ◽  
Author(s):  
Qiao Fen Zhang ◽  
Jian Gao ◽  
Xin Chen ◽  
Zhiliang Wang
Keyword(s):  
Light Emitting Diode ◽  
Lens Design ◽  
Light Emitting ◽  
Simulation And Optimization

Design of Polygon Prism Optical Lens for LED Street Lamps

2013 ◽  
Vol 756-759 ◽  
pp. 4541-4544 ◽  
Author(s):  
Jian Li ◽  
Kun Wang
Keyword(s):  
Light Emitting Diode ◽  
Optical Design ◽  
Design Procedure ◽  
High Energy ◽  
Luminous Flux ◽  
Optical Lens ◽  
Light Emitting ◽  
Rectangular Distribution ◽  
Output Efficiency ◽  
Color Rendering

High-power light emitting diode (LED) develops greatly owing to its high energy efficiency, high color rendering and long life. However, it is important to design a secondary optical lens for the LED lamps to obtain a good output efficiency and light distribution pattern. The purpose of the secondary optical design for light emitting diode (LED) illumination is to rearrange the luminous flux output of LED and then achieve the desired luminous intensity distribution. In this paper, a polygon prism lens for street lamps was designed and the desired illumination was achieved. The design procedure of the polygon prism lens is presented. The simulation of the street lamps is implemented using Tracepro 7.0. The results show that the polygon prism lens can distribute the luminous flux accurately and reasonably. The luminous flux can be saved as much as possible and a rectangular distribution of luminous flux is attained.

Asymmetric freeform lens design for a light-emitting diode front fog lamp

2021 ◽  
Vol 60 (09) ◽  
Author(s):  
Shang-Ping Ying ◽  
Han-Kuei Fu ◽  
Hsin-Hsin Hsieh ◽  
Yong-Lin Chen
Keyword(s):  
Light Emitting Diode ◽  
Lens Design ◽  
Light Emitting ◽  
Freeform Lens
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