WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1979000506) INTERFEROMETER SYSTEMS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000506    International Application No.:    PCT/GB1979/000006
Publication Date: 09.08.1979 International Filing Date: 11.01.1979
IPC:
G01B 9/02 (2006.01)
Applicants:
Inventors:
Priority Data:
1448/78 13.01.1978 GB
Title (EN) INTERFEROMETER SYSTEMS
(FR) SYSTEME INTERFEROMETRIQUE
Abstract: front page image
(EN)In a Michelson interferometer system arranged to give four output interferograms, two at each orthogonal direction of polarisation, the reflection and transmission coefficients of the interferometer beam splitter (10) at the two polarisation directions are chosen so that the ratios of the a.c. component to the d.c. component are equal in three of the interferograms. Difference signals derived from the three interferograms are suitable for use with an automatic, reversible, fringe counting system.
(FR)Dans un systeme interferometrique de Michelson agence pour fournir quatre interferogrammes, deux pour chaque direction orthogonale de polarisation, les coefficients de reflexion et de transmission du diviseur (10) du faisceau interferometrique pour les deux directions de polarisation sont choisis de telle maniere que les rapports des composantes c.a. aux composantes c.c. soient egaux dans trois des interferogrammes. Des signaux de difference derives de ces trois interferogrammes sont appropries pour une utilisation avec un systeme de comptage de franges automatique et reversible.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)