Browse Prior Art Database

Deformation Image Processing

IP.com Disclosure Number: IPCOM000098043D
Original Publication Date: 1961-Dec-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Cross, RG: AUTHOR

Abstract

The speed of processing deformation images on dielectric material is increased by simultaneously exposing and developing.

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Deformation Image Processing

The speed of processing deformation images on dielectric material is increased by simultaneously exposing and developing.

A film 4 of desired dielectric material, for example, styrene coated polyethylene terephthalate, is sensitized by charging uniformly. This is effected at a polarity opposite to the intrinsic polarity of electric charge on a xerographic plate 6. Film 4 is superimposed over the plate 6 with the photoconductive material of the plate and film 4 in virtual contact in darkness in print frame 8.

The image of a document 10 is optically projected through a lens 12 and shutter 14 onto the 4 and plate 6. Exposure results in conduction of the photoconductive material. This causes an increase in electrostatic field strength in the exposed areas of the film 4.

An electrostatic charge pattern corresponding to the initial image is thus formed on 4.

The image on film 4 is simultaneously developed by exposure to solvent vapor in chamber 16 of frame 8. Chamber 16 is connected to a tank 18 containing a solvent 20, for example trichlorethylene. Its vapors flow through conduit 22, with valve 24 open as shown, to 16. Heater 26 is provided to insure vaporization of solvent 20, although in some instances heat is not required. Positive vapor movement is provided by blower 28. This also serves, when valve 24 closes conduit 22, to force clear air into the chamber 16 to purge the excess vapor from film 4 to fix it. Excess vapor is forced throu...