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Copying Machine with Simultaneous Forms Printing

IP.com Disclosure Number: IPCOM000092178D
Original Publication Date: 1968-Oct-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 18K

Publishing Venue

IBM

Related People

Thomas, DD: AUTHOR

Abstract

In such reflex photographic systems, the photosensitive element is a dichroic material. That is, photosensitive element 1 can be used in a reflex system in which such element is uniformly exposed to polarized light 2 having an electric vector such that the light is not absorbed by the dichroic element as it passes through the element from the back. In striking document 3 in contact with the face of the element, the light is absorbed in the dark areas 4 and depolarized and reflected back by the diffusely reflecting light areas 5. Up to at least 50% of the reflected, depolarized light is absorbed by the dichroic material, thus creating an image in the element corresponding to the image of the document.

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Copying Machine with Simultaneous Forms Printing

In such reflex photographic systems, the photosensitive element is a dichroic material. That is, photosensitive element 1 can be used in a reflex system in which such element is uniformly exposed to polarized light 2 having an electric vector such that the light is not absorbed by the dichroic element as it passes through the element from the back. In striking document 3 in contact with the face of the element, the light is absorbed in the dark areas 4 and depolarized and reflected back by the diffusely reflecting light areas 5. Up to at least 50% of the reflected, depolarized light is absorbed by the dichroic material, thus creating an image in the element corresponding to the image of the document. With such a system, element 1 can be exposed to format information with the polarized light during the exposure of the element to the information of the document. This is accomplished by interposing a format transparency 6 between the polarized light and the back of element 1. The format information is contained in areas 7, which either are dark colored, or which contain a material, such as a dichroic material with the correct alignment, for absorbing the polarized light. If desired, the undercutting of the light due to the additional thickness of the format transparency can be overcome by the use of parallel light.

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