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Optical Character Display System

IP.com Disclosure Number: IPCOM000075429D
Original Publication Date: 1971-Sep-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Temko, JE: AUTHOR

Abstract

A system is provided by which characters from a source such as a computer are visually displayed by optical means utilizing a constant-speed character wheel 10, driven by synchronous motor 12, having near its circumference perforated characters 14, or holes which contain film inserts exhibiting characters, and one or more strobe lights 16. Wheel 10 has an aperture or hole 18, preferably at its circumference, for receiving light from constant-light source 20 which is detected by photodetector 22 to provide a timing point. Each character has a timing relationship to a particular strobe light. To select a certain character on wheel 10, a strobe light 16 is pulsed at a time when the selected character is opposite the pulsed strobe light.

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Optical Character Display System

A system is provided by which characters from a source such as a computer are visually displayed by optical means utilizing a constant-speed character wheel 10, driven by synchronous motor 12, having near its circumference perforated characters 14, or holes which contain film inserts exhibiting characters, and one or more strobe lights 16. Wheel 10 has an aperture or hole 18, preferably at its circumference, for receiving light from constant-light source 20 which is detected by photodetector 22 to provide a timing point. Each character has a timing relationship to a particular strobe light. To select a certain character on wheel 10, a strobe light 16 is pulsed at a time when the selected character is opposite the pulsed strobe light.

The image of the selected character is transmitted via one of the fiber-optic tubes 24, through a corresponding lens 26 to ground glass or photoluminescent screen 28. Any number of characters may be utilized, limited only by the physical size of wheel 10 and characters 14.

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