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:
Jun. 13, 1989
Filed:
Aug. 12, 1986
Applicant:
Inventors:
Meinrad Machler, Ellwangen, DE;
Reinhold Bittner, Mogglingen, DE;
Richard Sachse, Konigsbronn, DE;
Harry Schlemmer, Aalen, DE;
Assignee:
Carl-Zeiss-Stiftung, Heidenheim, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
35016223 ; 350 9619 ; 35016222 ; 356305 ;
Abstract
An unmetallized grating is mounted on an optically transparent body is subjected to radiation which passes through the body and strikes the flanks of the grating grooves at an angle that is larger than the critical angle of the total reflection.