HETERODYNES PHOTODETEKTORSYSTEM UND DIESES PHOTODETEKTORSYSTEM BENUTZENDES ABBILDUNGSSYSTEM FÜR TRANSMISSIONSBILDER

A transmitted light generated when a beam from a laser beam source (01) is applied to a specimen is combined with a laser beam from a local oscillation beam source (02) whose frequency is different from that of the applied laser beam through a half mirror (03), and the combined light is received by...

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Bibliographische Detailangaben
Hauptverfasser:	TOIDA, MASAHIRO RESIDENCE MINAMI C, SENDAI-SHI MIYAGI 982, JP, ICHIMURA, TSUTOMU DAI 3 GREEN HAITSU-ZUIHO 30, TAIHAKU-KU SENDAI-SHI MIYAGI 982, JP, INABA, FUMIO 1-13-1, YAGIYAMA-MINAMI TAIHAKU-KU, MIYAGI 982, JP
Format:	Patent
Sprache:	ger
Schlagworte:	COLORIMETRY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DIAGNOSIS FREQUENCY-CHANGING HUMAN NECESSITIES HYGIENE IDENTIFICATION 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 MEDICAL OR VETERINARY SCIENCE NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS RADIATION PYROMETRY SURGERY TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TESTING
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Beschreibung
Zusammenfassung:	A transmitted light generated when a beam from a laser beam source (01) is applied to a specimen is combined with a laser beam from a local oscillation beam source (02) whose frequency is different from that of the applied laser beam through a half mirror (03), and the combined light is received by a light receiving element (04) that restricts each division area to not larger than a minimum space resolution unit where an interference between different points is generated when the propagation area of light is divided to generate a Fraunhofer diffraction image. The whole or part of the Fraunhofer diffraction image of the zero order, or a diffraction image up to n times the zero order spectrum are detected by a photodetector (05). Since the transmitted image can be separated from a scattering component and detected by extracting the beat component of the combined light, and information on an absorber can be obtained even when the scattering component is large such as with light passed through a specimen of an organism, etc., the application of this device to the optical CT, etc. becomes possible.