Optimization of Xenon Gas Discharge Flat Panel Lamps

2013

AMR

Self Cite

High brightness and high power light emitting diode (LED) based lamps have been identified as one of the solutions for energy saving light sources in illumination. Owing to its high energy efficiency, high color rendering and long life, LED lamps are promising. However, it is important to design a secondary optical lens for the LED lamps to obtain good output efficiency and a good light distribution pattern. In this paper, we proposed and developed a secondary optical lens design blueprint for LED stage lamps. A cone lens for stage lamps was designed and the desired illumination was achieved. The design procedure of the cone lens is presented. The simulation of the stage lamps is carried out in Tracepro 7.0. The results show that the cone lens can rearrange the luminous flux accurately and reasonably. A stage lamp with a uniform and circular luminous flux distribution is obtained.

Section: Introductionmentioning

confidence: 99%

Secondary Optical Design of LED Stage Lamps

2013

AMR

Self Cite

“…Gas discharge lamps are widely used in the street lamps [1][2][3][4][5][6]. As the fourth generation of lamp sources, LED has many advantages that other lamp sources do not have.…”

Section: Introductionmentioning

confidence: 99%

Design of Polygon Prism Optical Lens for LED Street Lamps

2013

AMR

Self Cite

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.

“…Gas discharge lamps are the third generation of light sources which give out 70% light with only 30% electricity. Microwave and RF plasmas have found increasing use in many fields [1][2][3][4]. A plasma column can be constructed from glass tube filled with low pressure gases with the SWP sources [5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Research in Surface-Wave Sustained Plasma Fluorescent Lamps

2013

AMR

Self Cite

A cylindrical fluorescent lamp driven by a surface-wave sustained plasma (SWP) generator designed in our lab is researched. A technique to diagnose the SWP plasma column is introduced. Principal physical properties, ion density and electron temperature and the luminance of a fluorescent lamp were studied. Influence factors of luminance such as the microwave power, the gas pressure were studied. The radial distribution of luminance and ion density was also researched. The results show the SWP column is able to generate plasma of about 3ev electron temperature and 1017 m-3 ion density. It is found that the luminance at 200 mm above the base can be about 8000 cd/m2. The luminance changes with the microwave power and the pressure.