Patent ID: 6118589
Filing Date: 2000-09-12
Classification: G02B,G02F,H04N

Abstract:
An imaging system comprising:a first set of prisms, said first set of prisms made of a first material, said first set of prisms having at least two prisms arranged in a sawtooth pattern of alternating prisms and gaps in a first orientation;a second set of prisms, said second set of prisms made of a second material having an electro-optical property such that said second prism reflects an image when an electromagnetic field is applied to said second prism and said second prism passes through said image when said electromagnetic field is not applied, said second set of prisms having at least two prisms arranged in a sawtooth pattern having prisms and gaps, said prisms of said second set of prisms constructed and arranged to fit within said gaps of said first set of prisms to form a prism sheet;an image receptor, said image receptor constructed and arranged to receive said image reflected from at least one of said prisms; anda sequencer, said sequencer constructed and arranged to apply and remove said electromagnetic field to each of said prisms of said second set of prisms;such that when said sequencer sequentially applies and then removes said electromagnetic field to said prisms of said second set of prisms, said image receptor receives sequentially different images of an object.