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Optical Display System Based On Photochemical Nucleation

IP.com Disclosure Number: IPCOM000066557D
Original Publication Date: 1979-Mar-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Burland, DM Marvin, DC [+details]

Abstract

One example of a beam-addressable optical display system that utilizes photo-nucleation at specific locations in a supersaturated vapor is shown in the drawing. A laser 10, for example, a helium-cadmium laser, is deflected by an acousto-optic light deflector 12 into a chamber 14 containing a supersaturated vapor 16. The vapor 16 may be, for example, heptane or nonane containing on the order of 10 to 100 ppm of a dopant that can absorb laser light. Examples of dopants are nitrogen dioxide, o-nitrotoluene, benzoic acid and p-tolualdehyde.