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:
Mar. 27, 2012
Filed:
Oct. 01, 2009
Applicants:
Seong Chong Park, Daejeon, KR;
Seung Nam Park, Daejeon, KR;
Dong Hoon Lee, Daejeon, KR;
Inventors:
Assignee:
Korea Research Institute of Standards and Science, Daejeon, KR;
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an instrument and method for measuring total luminous flux of luminous elements, which forms an approximately uniform spatial intensity distribution by simultaneously lighting a plurality of luminous elements for measurement in an integrating sphere when comparing a total luminous flux standard lamp with the luminous elements to measure the total luminous flux of the luminous elements, thus not requiring spatial mismatch error correction.