Optimizing Depth of Field in 3D Light-Field Display by Analyzing and Controlling Light-Beam Divergence Angle
Chinese Optics Letters(2024)
摘要
A concept of divergence angle of light beams (DALB) is proposed to analyze the depth of field (DOF) of a 3D light -field display system. The mathematical model between DOF and DALB is established, and the conclusion that DOF and DALB are inversely proportional is drawn. To reduce DALB and generate clear depth perception, a triple composite aspheric lens structure with a viewing angle of 100 degrees is designed and experimentally demonstrated. The DALB-constrained 3D light -field display system significantly improves the clarity of 3D images and also performs well in imaging at a 3D scene with a DOF over 30 cm.
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关键词
3D light-field display,depth of field,divergence angle of light beams,compound lens
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