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:
Aug. 17, 1976
Filed:
Mar. 01, 1974
Applicant:
Inventors:
Uwe Claussen, Leverkusen, DT;
Gunter Oppermann, Cologne, DT;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ; F21K / ;
U.S. Cl.
CPC ...
25230117 ; 2602401 ; 2603 / ; 2603 / ; 331 / ;
Abstract
Laser light of different wavelength can be produced by exciting sparingly water soluble fluorescent compounds of which the .alpha..alpha. m value is less than 0,300 and of which the molecular symmetry is either of symmetry group C.sub.s or of a higher symmetry group than this, the fluorophor having to form a rigid system if the compound belongs to symmetry group C.sub.s, the compounds being present in concentrations of between 10.sup..sup.-1 and 10.sup..sup.-5 mol/l in organic solvents.