Beam ratio control for holography

Details Beam ratio control for holography Beam ratio control for holography

1977-05-05

1978-11-14

Stern, Ronald J.

Optics: measuring and testing

Range or remote distance finding

With photodetection

350266, 356222, G03H 102

Patent

active

041253140

ABSTRACT:
To form a hologram of a section of an object surface one end of each of a pair of elongated, flexible, optical fibers is illuminated with a laser beam through an optical mechanism which allows adjustment of the amount of light that falls on each of the fiber ends. The opposite end of one of the fibers is disposed adjacent to the object of which the hologram is to be formed so that the light output of that fiber diffuses and illuminates the relevant surface. A photographic plate is disposed to receive light reflected from the object surface as well as a reference beam radiating from the output end of the other fiber. A photodetector device receives a portion of the reference beam at one input and a portion of the object beam at another input and provides a visual indication of the relative intensity of the beams. The input to the fiber elements is adjusted to achieve the desired beam ratio for forming a hologram.

REFERENCES:
patent: 2439373 (1948-04-01), Stearns
patent: 3437411 (1969-04-01), Rudomanski et al.
patent: 3598467 (1971-08-01), Pearson
patent: 3729634 (1973-04-01), Jensen et al.
patent: 3738756 (1973-06-01), Chaney
patent: 3755677 (1973-08-01), Ooue et al.
patent: 3758786 (1973-09-01), Weinel
patent: 3922060 (1975-11-01), Oosaka et al.

Affiliated with

Also associated with

Rating

Beam ratio control for holography does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Beam ratio control for holography, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beam ratio control for holography will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1299208