Camera and method for holographic interferometry using an erasab

Details Camera and method for holographic interferometry using an erasab Camera and method for holographic interferometry using an erasab

1995-02-23

1996-10-08

Gonzalez, Frank

Optics: measuring and testing

By particle light scattering

With photocell detection

356348, G01B 902

Patent

active

055637043

ABSTRACT:
A camera apparatus and method of use employing a photosensitive photopolymer film as a recording medium for generating an interferogram through the use of a write laser beam and a read laser beam. The interferogram is sensed by a video camera and converted into a digital signal for mass storage or real time display on a video monitor. Because the thin film used is of high resolution and is able to handle a sequence of intefferograms at various video signal processing rates, the camera is able to be employed in real time as a motion picture camera for observing real processes and objects undergoing stress.

REFERENCES:
patent: 3690159 (1972-09-01), Kersch et al.
patent: 3826555 (1974-07-01), Matsumoto
patent: 5132811 (1992-07-01), Iwaki et al.
patent: 5374492 (1994-12-01), Hampp et al.

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