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:
Feb. 06, 2018
Filed:
Jul. 03, 2017
Fanuc Corporation, Yamanashi, JP;
Hiroshi Takigawa, Yamanashi, JP;
Satoshi Kagiwada, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
A first calculation unit calculates an acceleration factor of lifetime consumption of the light source with as case of a standard temperature and standard drive condition as a reference, a second calculation unit calculates a whole lifetime or remaining lifetime of individual light sources relative to a performance index of the individual light sources or a change rate of the performance index, a computation unit obtains an effective cumulative driving time at which the magnitude of influence imparted on the lifetime is equivalent with a case of driving at the standard temperature and standard drive condition, by calculating a time integral of the acceleration factor, and a recording unit records the effective cumulative driving time and the whole lifetime or remaining lifetime together with an optical output characteristic of the light source.