Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1992-08-10
1994-08-23
Evans, F. L.
Optics: measuring and testing
By particle light scattering
With photocell detection
G01B 902
Patent
active
053412079
ABSTRACT:
In each arm of a Michelson interferometer (IF) a retroreflector (110; 110') having its aperture plane aligned perpendicularly to the optical axis is mounted on a respective holder (106; 106') which in turn is rigidly connected to one end of a shaft (105; 105') rotatably mounted in a connecting member (103; 103'). To the other end of the shaft (105; 105') a first gear (107.sub.1 ; 107.sub.1 ') is secured which is coupled via a toothed belt (909; 109') to an identically configured second gear (107.sub.2 ; 107.sub.2 ') which concentrically to a drive shaft (102; 102') of an electric motor (101; 101') is rigidly connected to the housing (1010; 1010') thereof. At a predetermined distance from the shaft (105; 105') the drive shaft (102; 102') is fixedly connected to the connecting member (103; 103') so that on rotation of the motor drive shafts (102; 102') the length of the optical paths is shortened in one interferometer arm and lengthened synchronously therewith in the other interferometer arm, or vice versa. Furthermore, the aperture planes of the two retroreflectors (110, 110') always remain unchanged aligned perpendicularly to the optical axis (FIG. 2 ).
REFERENCES:
patent: 4383762 (1983-05-01), Burkert
patent: 4556316 (1985-12-01), Doyle
patent: 4652130 (1987-03-01), Tank
patent: 5148235 (1992-09-01), Tank et al.
Peter Burkert et al., "A Compact High-Resolution Michelson Interferometer for Passive Atmospheric Sounding (MIPAS)," IEEE Transactions On Geoscience and Remote Sensing, GE-21 (1983) Jul. No. 3, New York, USA.
Haschberger Peter
Jansen Burkhard
Tank Volker
Deutsche Forschungsanstalt fur Luft - und Raumfahrt e.V.
Evans F. L.
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