Method of producing holograms particularly for holographic helme

Details Method of producing holograms particularly for holographic helme Method of producing holograms particularly for holographic helme

1988-11-14

1991-03-12

Arnold, Bruce Y.

350 375, 350 385, G02B 532, G03H 128, G03H 122

Patent

active

049987860

ABSTRACT:
A method of producing a desired hologram for a holographic optical element for use in imaging a multi-dimensional array of points, in which two coherent recording beams are utilized to produce an interference pattern which is recorded to form the desired hologram, characterized in that one or both of the recording beams have an aspherical wavefront derived from one or more intermediate holograms each reconstructed by the use of a read out beam having a geometry and/or wavelength different from the beams for recording the respective intermediate hologram.

REFERENCES:
patent: 4378142 (1983-03-01), Ono
patent: 4575192 (1986-03-01), Duthie et al.
patent: 4790612 (1988-12-01), Dickson
patent: 4824193 (1989-04-01), Maeda et al.

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