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Emitter Apparatus

IP.com Disclosure Number: IPCOM000098914D
Original Publication Date: 1958-Dec-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Trout, JH: AUTHOR

Abstract

To produce electrical impulses at predetermined intervals of time, an opaquely coated plastic cylinder is mounted for rotation about a longitudinal light source, Windows are provided at selected positions about the periphery and along the length of the cylinder to permit light from the light source to impinge upon associated photo-responsive elements positioned in line and parallel to the longitudinal axis of the cylinder.

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Emitter Apparatus

To produce electrical impulses at predetermined intervals of time, an opaquely coated plastic cylinder is mounted for rotation about a longitudinal light source, Windows are provided at selected positions about the periphery and along the length of the cylinder to permit light from the light source to impinge upon associated photo-responsive elements positioned in line and parallel to the longitudinal axis of the cylinder.

In addition to the in line photo-responsive elements, a collar element, adapted to freely embrace the cylinder, contains a plurality of arcuately spaced photo-responsive elements which are associated with a single window in the cylinder. The windows associated with the in line photo-responsive elements are all of the same width and spaced to match the spacing of the in line photo- responsive elements, but are of various predetermined lengths to effect the generation of electrical impulses varying in duration of time as the cylinder rotates.

The single window associated with the arcuately spaced photo responsive elements is of such length so as to overlap the spacing between the arcuately spaced photo-responsive elements so that light will pass through the window to impinge upon each of the photo-responsive elements in succession to effect electrical impulses as the cylinder rotates.

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