发明名称 Laser light show device and method
摘要 A laser light show device and method produces a surface projected or suspended holographic image, and includes multiple image projectors. One image projector provides the object image information representing the primary subject. For surface projections, additional background image projectors provide background image information generated using a wobbler plate-reflected beam diffracted through a spherical lens, a beam unidimensionally diffracted through a rotating cylindrical amorphic dipolyhedral lens, and a beam diffracted through multiple diffraction gratings. A suspended holographic image is produced by parabolically focusing multiple images projected onto a spherical image screen.
申请公布号 US5090789(A) 申请公布日期 1992.02.25
申请号 US19900562271 申请日期 1990.08.03
申请人 CRABTREE, ALLEN E. 发明人 CRABTREE, ALLEN E.
分类号 G09F19/18 主分类号 G09F19/18
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