Nicholas K. Sheridon

PRODUCTION OF BLAZED HOLOGRAMS

The concept of the blazed hologram as a special case of the Denisyuk hologram is discussed. Experimental production of blazed holograms is described. Blazed diffraction gratings, a form of blazed hologram, have been produced with 73% of the diffracted light concentrated in one first‐order maximum.

The Optical Processing Capabilities Of The Ruticon

The Ruticon is a solid state optical image modulator consisting of a metallized elastomer layer coated on a photoconductor layer. An electrical field is placed between the metal surface and a transparent conductive substrate. An input image, such as fron a CRT or a laser, causes a change in the distribution of electrical fields across the device, and the mechanical forces associated with these electrical fields cause the metallized elastomer surface to deform into an image pattern. Laser light reflected from this surface is phase modulated with the input image information and this modulated light may be used as the input to a coherent optical processing system. The operating characteristics of present and projected Ruticons will be described, along with examples of optical processing done with the Ruticon.

Practical air-assisted ionographic printing

The Corjet1 is an air-assisted ionographic printing device that offers advantages in the design of xerographic printers over the conventional laser scanned systems. The practical implementation of this technology required the solution of certain unique problems during its evolutionalry development.

Optical Processing With The Ruticon

Ruticons are optically addressed light valves that are proving increasingly useful for image storage and optical processing applications. A wide range of image storage times and sensitivities are obtainable, depending upon the desired application. High quality Ruticons have been constructed that are well suited for both noncoherent and coherent optical processing operations.

Seventy-five-copy-per-minute printing with air-assisted ionography

Printing at the rate of 75 pages per minute has been demonstrated with a modified Corjet ionographic head mounted on a modified Delphax 2460 printer engine, using grey scale fonts and encapsulated toner. Image quality approaching that of laser xerography was obtained. Very good reliability is predicted for the printer components.