US 5298831
METHOD OF MAKING PHOTOCATHODES FOR IMAGE INTENSIFIER TUBES
Assignee
ITT INDUSTRIES, INC.
Filed
Dec 31, 1985
Granted
Mar 29, 1994
Location
ROANOKE VA US
Abstract
A method is provided of making a photoemissive cathode including bonding an electron emissive layer to a glass faceplate at an elevated temperature and pressure to form a cathode structure and cooling the cathode structure at a rate which will maintain stress between the electron emissive layer and the faceplate at or below a predetermined level in order to avoid brush marks and crosshatchings during subsequent processing steps. The cathode is cooled from a bonding temperature to room temperature in approximately twenty minutes or less.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Jul 2, 1986
Rescinded
Feb 22, 1991
Duration
4 years, 7 months
Inventor
- 1AVRAHAM AMITH
Record Details
- Patent number
- US 5298831
- Application
- 06825115
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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Back to patent indexSource: USPTO 35 USC §181 secrecy order records