Holographic synthesis

Details Holographic synthesis Holographic synthesis

1993-09-08

1997-12-30

Shafer, Ricky D.

Optical: systems and elements

Holographic system or element

359 9, 359 10, 359 11, 359 21, G03H 108, G03H 110

Patent

active

057037027

ABSTRACT:
A tight packed array of amplitude controlled in-phase light emitters produces dynamic real holographic images. A partially reflecting mirror is applied to a planar array of amplitude controlled laser diode emitters which are stimulated by each other. The emitters are forced into phase with each other by partially reflecting light energy from adjacent row and column elements onto each other. Incident energy stimulates the element receiving the energy to fire in phase with the incident energy. The array may be forced in phase by directly illumination from a master laser. A single laser is used to illuminate a flat surface containing an array of transmissive apertures which act as emitters. Amplitudes are controlled by liquid crystals. Light from the emitters forms an image which changes according to amplitudes of the individual emitters. Optical focal plane reducers reduce the effective inter element spacing.

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