PATTERN THRESHOLD RECOGNITION DEVICE.
Quarterly rept. no. 2, 1 Oct-31 Dec 69,
ITT ELECTRON TUBE DIV FORT WAYNE IND
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The report describes the development effort on a pattern threshold recognition device. This tube consists of an electrostatic image-converter input, a storage-target which can be switched above its first cross-over potential in areas of target-information, a flood-gun to suppress the background information, and a read-gun on the reverse side of the target to provide and electrical output of the stored target-information. The tasks pursued toward development of this tube are a An electrostatically focused and deflected read-gun with a collimating system was developed and tested. b Thin-film storage-targets have been fabricated successfully on a metal-mesh support. c A simulated target suitable for use in a direct-view storage tube was evaluated. It demonstrated the capability of switching the potential of heavily written areas above first cross-over while suppressing the lightly written areas. d A tube for target evaluation was designed and is being fabricated. e The design of the final tube configuration is complete, and fixtures are being made for fabrication and assembly of the tube parts. Author
- Electrooptical and Optoelectronic Devices