刘晓东 Liu Xiaodong, 李湘宁 Li Xiang-ning, 汪宇青 Wang Yuqing
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引用次数: 0
Abstract
Cyclorama light is a luminaire specialized in lighting cyclorama at a close distance.The light shall be have an asymmetric intensity distribution and cove a large angular area in order to obtain uniform illumination on a cyclorama in a specific area.Based on the geometrical optics and the theory of irradiance,the luminous intensity distribution that satisfies the uniform illumination is calculated first.The secondary optical design based on the optical properties of the LED is developed,so that emergent light intensity distribution of the LED cyclorama light can match the luminous intensity distribution curve model.According to the law of conservation of energy,the luminous intensity distribution curve is equivalently divided in a discrete manner,and then effective superposition and compensation of directive rays and reflective rays are built.The reflective surface is designed according to the said method to realize the lighting requirements.The simulation of the designed LED cyclorama light by Zemax shows that cycloramas with different sizes and structure can be illuminated uniformly at a close distance through a simple lighting superposition of several designed LED cyclorama lights.The uniformity of illumination is above 85%and the energy efficiency is above 80%.
光学技术Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
0.60
自引率
0.00%
发文量
6699
期刊介绍:
The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months.
The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".