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:
Jan. 09, 2018
Filed:
Feb. 04, 2015
Osram Gmbh, München, DE;
Armin Konrad, Groβaitingen, DE;
Renate Hirrle, Augsburg, DE;
Markus Schönheits, Augsburg, DE;
Alexander Bothe, München, DE;
Frauke Philipp, Augsburg, DE;
Thomas Huckenbeck, Augsburg, DE;
LEDVANCE GmbH, , DE;
Abstract
In different embodiments, a low-pressure discharge lamp () is provided. The low-pressure discharge lamp has a discharge vessel () and a coating structure (). The coating structure is formed on an inner face of the discharge vessel (). The coating structure () has first fluorescent particles () which have at least one fluorescent substance that emits red light and the average particle size of which ranges from 0.5 μm to 1.9 μm, second fluorescent particles () which have at least one fluorescent substance that emits green light and the average particle size of which ranges from 0.6 μm to 2.8 μm or from 1 μm to 4 μm, and third fluorescent particles () which have at least one fluorescent substance that emits blue light and the average particle size of which ranges from 1 μm to 4 μm.