Title:
METHOD AND DEVICE FOR IDENTIFYING ABSOLUTE LASER WAVELENGTH
Document Type and Number:
Japanese Patent JP3692003
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the deterioration of secular measuring precision, and to reduce any influence on the measuring precision due to any mechanical assembly error.
SOLUTION: This device is provided with a fluorescence generating means 3 for generating fluorescence 4 by absorbing only a laser beam 2 having an absolute wavelength standard, an image pickup means 5 for image picking up the fluorescence 4, an extracting means 6 for extracting the fluorescence 4 by processing a picture signal obtained by the image pickup means 5, and a decision means 7 for deciding that the laser beam 2 to be identified has the same wavelength as the absolute wavelength standard when the fluorescence generating means 3 is irradiated with the laser beam 2 to be identified, and the fluorescence 4 is extracted by the extracting means 6.
Inventors:
Takuya Nayuki
Takashi Fujii
Koshichi Nemoto
Takashi Fujii
Koshichi Nemoto
Application Number:
JP2000072954A
Publication Date:
September 07, 2005
Filing Date:
March 15, 2000
Export Citation:
Assignee:
CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY
International Classes:
G01N21/01; G01N21/39; H01S3/00; (IPC1-7): H01S3/00; G01N21/01; G01N21/39
Domestic Patent References:
| JP64022084A | ||||
| JP10173271A | ||||
| JP9096564A | ||||
| JP10142150A | ||||
| JP8306999A | ||||
| JP10148614A | ||||
| JP61258128A | ||||
| JP4110749A | ||||
| JP1109785A |
Other References:
Review of Scientific Instruments Vol.61
Attorney, Agent or Firm:
Kazumi Murase