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. 08, 1999
Filed:
Jun. 25, 1997
Applicant:
Inventor:
Dean A Bell, Marcellus, NY (US);
Assignee:
Welch Allyn, Inc., Skaneateles Falls, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01K / ;
U.S. Cl.
CPC ...
313579 ; 313578 ; 313636 ; 501 65 ; 501 68 ; 501 70 ;
Abstract
A glass halogen lamp which exhibits improved short wavelength light transmission and emission having a glass envelope which is made of a glass composition of the aluminosilicate system in which the iron content of the composition is between 10 and 100 ppm. The glass envelope of the lamp may optionally contain an area of reduced wall thickness which further enhances short wavelength light transmission and emission.