Method of making a hologram

Optical: systems and elements – Holographic system or element – Using modulated or plural reference beams

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Details

359 15, 359 35, 359900, G03H 110, G02B 532

Patent

active

054556910

ABSTRACT:
This specification discloses a method of making a hologram imaged substantially without aberrations during the use when the wavelength of a light during the making differs from the wavelength of a light during the use and having high diffraction efficiency. In order to eliminate any aberration occuring when the hologram is used in a light beam of a different wavelength and to obtain high diffraction efficiency, a making light beam is caused to enter a predetermined coaxial optical system from outside the axis thereof to impart a suitable aberration, and a hologram is formed on a hologram sensitive material by the making light beam.

REFERENCES:
patent: 3666345 (1972-05-01), Maslowski
patent: 4465332 (1984-08-01), Horner et al.
patent: 4469407 (1984-09-01), Cowan et al.
patent: 4530564 (1985-07-01), Close

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