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Browse Prior Art Database

Storage Camera

IP.com Disclosure Number: IPCOM000093739D
Original Publication Date: 1966-Jan-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

Anderson, JL: AUTHOR

Abstract

This relates to image storage and readout using superconducting devices. Each side of tin sheet 1 has a printed circuit transmission line 2 doubled back and forth in a coincident relationship. Sheet 1 is placed in Dewar flask 3 containing liquid helium as a refrigerant.

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Storage Camera

This relates to image storage and readout using superconducting devices. Each side of tin sheet 1 has a printed circuit transmission line 2 doubled back and forth in a coincident relationship. Sheet 1 is placed in Dewar flask 3 containing liquid helium as a refrigerant.

Light from picture source 4 is focused through the wall of flask 3 and causes the picture to be imaged on sheet 1. DC bias is applied at terminal 5 to the transmission line on the side of sheet 1 exposed to light. In the absence of local heating due to the light, this bias is not sufficient to drive sheet 1 into a resistive state. However, due to local heating from the light, sheet 1 is driven into a resistive state in proportion to the light. This permits flux penetration and, when the bias is removed, the flux is trapped as sheet 1 is driven into the superconducting state.

For readout purposes a very narrow scanning pulse can be applied to the transmission line on the image side of the sheet. A signal proportional to the stored flux can be taken off the transmission line on the opposite side of the sheet at detector 7. Thus, the stored image can be scanned line by line as the pulse propagates.

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