Holographic stepwise zoom lens

Details Holographic stepwise zoom lens Holographic stepwise zoom lens

G - Physics

02

B

26/197, 88/0.1

G02B 15/00 (2006.01)

Patent

CA 1115101

ABSTRACT OF THE DISCLOSURE A holographic optical element that performs a zoom operation in a stepwise fashion while undergoing a simple rotation. Each of four holographic plates is produced by a different optical arrangement. Each plate contains a number of exposures arranged in a ring. The four plates are paired with the exposures in the ring of one plate in proper register with the exposures in the second plate. The resulting pair of holograms form on-axis holographic lenses. The two pair of combined to produce the holographic zoom lens.

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