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Neon Photoconductor Photo Relay

IP.com Disclosure Number: IPCOM000098407D
Original Publication Date: 1960-Sep-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 60K

Publishing Venue

IBM

Related People

Litz, FA: AUTHOR [+2]

Abstract

The neon photoconductor configuration (A) reduces the problem of uneven distribution of radiation from a neon tube. Neon tube 1 is oriented off center within the cylinder 2 which supports photoconductors 3. The arrangement brings the photoconductors in the region of low intensity radiation closer to the electrodes and those in the high intensity region further from the electrodes (B).

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Neon Photoconductor Photo Relay

The neon photoconductor configuration (A) reduces the problem of uneven distribution of radiation from a neon tube. Neon tube 1 is oriented off center within the cylinder 2 which supports photoconductors 3. The arrangement brings the photoconductors in the region of low intensity radiation closer to the electrodes and those in the high intensity region further from the electrodes (B).

An alternative method of locating the neon tube off center is shown in (C). The photoconductors 3 are equally spaced from the electrodes, but the area of each is inversely proportional to the radiation intensity at that location.

The relatively long vertical dimension of the photoconductor prevents plasma movement along the electrode from adversely affecting operation of the device.

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