Speckle reduction in laser projection based on a rotating ball lens
Optics & Laser Technology(2021)
摘要
•Efficient no-diffuser speckle reduction based on rotating ball lens with light pipe.•Achieved less light loss and more uniform image brightness.•Standardised speckle measurement method replicating human eye functions.•Development of a measurement system using a charge-coupled device camera.•Low-cost and easily fabricated system for accurate and rapid measurements.
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关键词
Ball lens,Speckle reduction,Laser projection,Human eye,Speckle measurement
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