Modulated fabry-perot

The present invention relates to a Fabry-Perot interferometer including two plane mirror surfaces mounted in a frame and a system including the interferometer. The mirrors have a known distance between them, and at least one of the mirror surfaces is both partially reflective and partially reflectiv...

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1. Verfasser:	Johansen, Ib-Rune
Format:	Patent
Sprache:	eng
Schlagworte:	COLORIMETRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS RADIATION PYROMETRY TESTING
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creator	Johansen, Ib-Rune
description	The present invention relates to a Fabry-Perot interferometer including two plane mirror surfaces mounted in a frame and a system including the interferometer. The mirrors have a known distance between them, and at least one of the mirror surfaces is both partially reflective and partially reflective, where there are at least two actuator units, each including at least one actuator. The first actuator unit is adapted to adjust said distance between said mirrors and the second actuator unit is adapted to modulate said distance at a chosen frequency, both thus providing a variation over a range of mirror distances corresponding to a range of filtered wavelengths in said Fabry-Perot interferometer. At least one of said mirrors is related to the frame through a silicon membrane, at least one of said actuator units comprising a piezoelectric material on said membrane, thus constituting a bimorph or unimorph actuator unit.
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subjects	COLORIMETRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS RADIATION PYROMETRY TESTING
title	Modulated fabry-perot
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