Title:
DEVICE FOR INSPECTING THE FACEPLATE OF AN IMAGE TUBE
Document Type and Number:
Japanese Patent JPS5240356
Kind Code:
A
Abstract:
PURPOSE: To positively detect whether or not striae are present in the faceplate to be inspected, by disposing a nontransmissive secreen such as a grating screen between a light source and said faceplate, and subjecting said faceplate and screen to relatively axial rotation.
Inventors:
YAMAGUCHI SHIYOUZOU
Application Number:
JP11699775A
Publication Date:
March 29, 1977
Filing Date:
September 26, 1975
Export Citation:
Assignee:
MATSUSHITA ELECTRONICS CORP
International Classes:
G01M11/00; G01N21/84; G02B6/00; (IPC1-7): G01M11/00; G02B5/16
Domestic Patent References:
| JP39067375A |