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US 6,383,046 B2Granted
Glass bulb for a cathode ray tube and a method for producing a cathode ray tube
AssigneeAsahi Glass Company, Limited
InventorMasayuki Shinoda
Life of this patent
Estimating the term…
Abstract
Manufacturing steps for a cathode ray tube or a glass bulb for the cathode ray tube are controlled in such a manner that a two-dimensional matrix code 3 comprised of a plurality of dots is marked by laser in an outer side surface of a glass bulb 1, 5, the two-dimensional matrix code 3 containing the information which can identify individually glass bulbs, and the manufacturing steps are conducted by using a computer and the particulars specified by the serial information.
Claims7
A method for producing a cathode ray tube which comprises:
- a step of reading a two-dimensional matrix code composed of a plurality of dots including at least a serial information marked in a predetermined portion of an outer side surface of a component for a cathode ray tube to identify individually the component for the cathode ray tube;
- a step of determining by a control device operating conditions in response to the identified component for the cathode ray tube;
- a step of reading the serial information in a manufacturing step for cathode ray tubes to extract desirable operating conditions determined for the component for the cathode ray tube from the control device;
- and
- a step of conducting operations instructed by the control device, wherein a part or all of the manufacturing steps are controlled on the basis of the serial information.
2 more elements
Dependencies are inferred from the claim text.