Title:
METHOD FOR DETERMINING THE DIRECTION AND WAVELENGTH OF A COHERENT LIGHT EMISSION AND OPTICAL SYSTEM FOR CARRYING OUT SAID METHOD
Document Type and Number:
WIPO Patent Application WO2006033600
Kind Code:
A3
Abstract:
The invention relates to spectral analysis and laser location. The inventive method is characterised in that recording of systems of interference uniform thickness fringes obtained by means of Fabry-Perot wedge interferometers is carried out in the form of spatial frequencies whose periods correspond to a light emission wavelength and angles of incidence thereof by projecting the images of said systems on periodical systems provided with photocells, wherein the thus obtained electric signals are subsequently analysed. Said method is carried out by means of an optical system consisting of three interferometers. The inventive method for determining the direction and wave length of a coherent light emission and the optical system for carrying out said method make it possible to simultaneously determine the direction of incidence of several laser beams having equal or different light wavelengths, to measure said beams in a wide spectral range in a high-accuracy manner and can be used for the spectral analysis of a light emission and for orienting different actuating mechanisms with the aid of laser beams.
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Inventors:
ATNASHEV VITALIY BORISOVICH (RU)
Application Number:
PCT/RU2005/000464
Publication Date:
September 14, 2006
Filing Date:
September 14, 2005
Export Citation:
Assignee:
ATNASHEV VITALIY BORISOVICH (RU)
International Classes:
G01J9/02; G01J3/28; G01J3/45
Foreign References:
| RU2190197C1 | 2002-09-27 | |||
| RU2064667C1 | 1996-07-27 | |||
| SU1441189A1 | 1988-11-30 | |||
| US4309108A | 1982-01-05 |
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