The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 1977
Filed:
Dec. 09, 1975
Applicant:
Inventor:
Jacques Trotel, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
2504 / ; 250398 ;
Abstract
The present invention relates to a device designed to automatically trace designs at a very small scale. The device comprises an electron-optical system forming an elementary image of extremely small dimensions, of a diaphragm. A scanning system makes it possible to display said image, line by line over the surface which is to be printed, in a first direction, while a mechanical system displaces the surface in a direction perpendicular to the first direction. The arrangement is controlled by a logic system supplying code numbers which indicate the programme to be followed in respect of each line. The invention applies to microelectronics.