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Flying Spot Scanner

IP.com Disclosure Number: IPCOM000097474D
Original Publication Date: 1962-Dec-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Potter, RJ: AUTHOR

Abstract

This flying spot scanner system includes a cathode ray tube 10 having a face plate made of an optical fiber bundle 12. The system has a photomultiplier tube 14 disposed to receive light passing through bundle 12. It also has a photographic transparency 16, serving as a memory medium, interposed between bundle 12 and tube 14. Phosphor 18, preferably P-15 or P-16 type, is disposed within tube 10 at the face of bundle 12 opposite the face at which transparency 16 is located.

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Flying Spot Scanner

This flying spot scanner system includes a cathode ray tube 10 having a face plate made of an optical fiber bundle 12. The system has a photomultiplier tube 14 disposed to receive light passing through bundle 12. It also has a photographic transparency 16, serving as a memory medium, interposed between bundle 12 and tube 14. Phosphor 18, preferably P-15 or P-16 type, is disposed within tube 10 at the face of bundle 12 opposite the face at which transparency 16 is located.

Where very high speed operation is desired, P-15 phosphor is used and filter 20 is interposed between transparency 16 and tube 14. This permits transmission of only ultraviolet optical energy to tube
14. A control unit 22, which can be an electronic computer, applies suitable control voltages to deflection system 24. This has coil 26 which directs the electron beam of tube 10 to any desired spot of phosphor on the face plate of tube 10. When the phosphor spot becomes irradiated, optical energy passes through one or more adjacent fibers of bundle 12 toward a corresponding spot of transparency 16 which amplitude modulates this energy before it is received in tube 14. The output signals from tube 14 are applied to utilizing devices 26, which, for example, can be an electronic computer.

The fiber bundle 12 can be made of individual fibers having a crosssectional dimension of 8 microns or less. The tube 10 can be fabricated with phosphor spots of the dimensions of 0. 001 inches or less....