Glare Design Optimization of LED Blackboard Lamp Based on Human Eye Subjective Brightness Theory
WANG Yongheng
CHEN Tongzhen
DING Wenchao
Abstract：Based on the theory of subjective brightness of human eyes,this paper proposes a blackboard lamp lighting design that combines Fresnel extrusion lens,reflector and diffuser.The optical simulation and optimization are carried out by software,and the actual sample test is made.The measured average illumination of the new LED blackboard lamp developed reaches 726.6 lx,and the illumination uniformity reaches 0.857.At the same time,it reduces the user's uncomfortable glare feeling and realizes a good lighting experience that is suitable for the use of the blackboard.
Keywords：blackboard lightingglareillumination uniformitysubjective brightness of the human eyefresnel lens
Publication Date：2024-10-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 57-63,68 )