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:
Oct. 11, 1988
Filed:
Aug. 17, 1987
Applicant:
Inventor:
Dieter Marx, Aalen-Waldhausen, DE;
Assignee:
Carl-Zeiss-Stiftung, Heidenheim on the Brenz, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
250330 ; 250332 ;
Abstract
A mirror is mounted in front of the image screen of thermographic apparatus, for swinging movement from an out-of-the-way or ineffective position, to an effective operating position, lying across and perpendicular to the optical axis of the thermographic apparatus. In this operating position, the image on the image screen is reflected back to the image screen. Observation of the reflected back image on the image screen enables the observer to determine whether the thermographic apparatus is or is not functioning properly.