Patent · US Expired

Luminescent compound for controlling traveling and method for controlling traveling using the same

US6203725A · kind A · utility

6Cited by
13References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 18, 1997
Grant dateMar 20, 2001
Priority date
Expiry dateJul 18, 2017

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K11/06
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

According to the present invention, when the traveling of an automatic guided vehicle is optically controlled, a traveling controlling means containing a luminescent compound satisfying the following formula (1) is placed in a predetermined range for traveling of the automatic guided vehicle: EQU A-B.gtoreq.150 nm (1) wherein, A represents the minimum wavelength end (nm) of the luminescent compound, and B represents the maximum wavelength end (nm) of an irradiation light used for the traveling controlling.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.