Accession Number:

AD0743777

Title:

Random Bias Holograms,

Descriptive Note:

Corporate Author:

LAVAL UNIV QUEBEC LABORATOIRE D'OPTIQUE ET HYPERFREQUENCES

Personal Author(s):

• Arsenault,H. H.

Report Date:

1971-10-18

Pagination or Media Count:

5.0

Abstract:

To make holograms of three-dimensional diffuse objects, the conventional technique consists of illuminating the photographic plate with a uniform reference beam that is modulated by the light reflected from the object. This set-up requires a number of beam splitters, beam expanders, pinhole filters and mirrors. If instead of a uniform reference beam, a reference beam having large random variations of amplitude from point to point is used, it is still possible under certain conditions to reconstruct the object from the hologram. A method is described for making holograms of three-dimensional objects using only a laser, one mirror, one diffuser, and a photographic plate. Such holograms may be reconstructed with a point source in the usual manner, and the quality of the image is comparable to that from ordinary holograms. Author

Descriptors:

• (*STEREOPHOTOGRAPHY
• PHOTOGRAPHY)
• LASERS
• DIFFUSERS
• PHOTOGRAPHIC IMAGES
• CANADA

Subject Categories:

• Holography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE