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公开(公告)号：GB2415251A
公开(公告)日：2005-12-21
申请号：GB0510429
申请日：2005-05-23
Applicant: OTSUKA DENSHI KK
Inventor： OKA KOICHI , NITTA SATOSHI
Abstract: An optical measurement apparatus for measuring spectrum in a gas cell, the optical measurement apparatus comprises: a light source S with a predetermined wavelength range; a first mirror M1 which reflects the light emitted from the source to a long path gas cell1; and a second mirror M2 which reflects the light outputted from the long path gas cell to a sensor D. An optical element 21, 22 which has a bifocal property is positioned in the light path between the light source S and the sensor D. The bifocal property of the optical element gives the optical element different focal lengths as measured in two directions perpendicular to the light path. The first and second mirrors M1, M2 may be mounted with the bifocal optical element 21, 22. A movement means may move the first and second mirrors away from the light path between the light source and sensor (L, fig. 4), and thus disposing a short light path gas cell 2 to the light beam from the source to sensor.
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公开(公告)号：AT280943T
公开(公告)日：2004-11-15
申请号：AT02718233
申请日：2002-03-01
Applicant: JOBIN YVON SAS
Inventor： DA SILVA EDOUARD
Abstract: The invention relates to a spectrometer ( 1 ) comprising a dispersive element of a light beam formed of a set of spectral components, the dispersive element generating spatial dispersion of the spectral components in the form of a dispersion spectrum ( 6 ) spatially spread, at least one photon detector ( 5, 52 ) comprising at least one detection element ( 51 ) being provided at one point of said dispersion. According to the invention, a matrix optical electromechanical device ( 3 ) is provided between the dispersive element and the detector in the dispersion spectrum, said electromechanical device being formed of a matrix of optical elements, each of the optical elements being able to send back a portion of the dispersion spectrum according to at least two directions in relation to a control signal, in order to enable the selection of at least one sub-assembly of the spectrum for said detection element. A method and an application of the spectrometer are claimed.
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公开(公告)号：FR2821670B1
公开(公告)日：2004-07-09
申请号：FR0102924
申请日：2001-03-02
Applicant: JOBIN YVON SAS
Inventor： DA SILVA EDOUARD
Abstract: The invention relates to a spectrometer ( 1 ) comprising a dispersive element of a light beam formed of a set of spectral components, the dispersive element generating spatial dispersion of the spectral components in the form of a dispersion spectrum ( 6 ) spatially spread, at least one photon detector ( 5, 52 ) comprising at least one detection element ( 51 ) being provided at one point of said dispersion. According to the invention, a matrix optical electromechanical device ( 3 ) is provided between the dispersive element and the detector in the dispersion spectrum, said electromechanical device being formed of a matrix of optical elements, each of the optical elements being able to send back a portion of the dispersion spectrum according to at least two directions in relation to a control signal, in order to enable the selection of at least one sub-assembly of the spectrum for said detection element. A method and an application of the spectrometer are claimed.
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公开(公告)号：AU2003210190A1
公开(公告)日：2003-09-02
申请号：AU2003210190
申请日：2003-01-28
Inventor： HEITMANN UWE , FLOREK STEFAN , BECKER-ROSS HELMUT
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公开(公告)号：DE10205142A1
公开(公告)日：2003-08-28
申请号：DE10205142
申请日：2002-02-07
Applicant: GES ZUR FOERDERUNG ANGEWANDTER OPTIK OPTOELEKTRONIK QUANTENELEKTRONIK & SPEKTROSKOPIE EV , GES FOERDERUNG SPEKTROCHEMIE
Inventor： FLOREK STEFAN , BECKER-ROSS HELMUT , HEITMANN UWE
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Patent Agency Ranking
公开(公告)号：GB2329038B
公开(公告)日：2001-04-25
申请号：GB9824279
申请日：1998-03-06
Applicant: VARIAN AUSTRALIA
Inventor： ALLEN BRIAN LAWRENCE , HAMMER MICHAEL RON
Abstract: Spectroscopic apparatus for sequentially detecting the presence of a plurality of elements in a sample. The apparatus includes a plurality of lamps (1a-1e) each of which is for detecting the presence of a respective at least one predetermined element in a plurality of elements. A beam selector (13) which may be a mirror, is operative to direct a beam of light (7) from any one of lamps (1a-1e) to an analysis zone (8). The apparatus includes a monochromator (15), the drive (24) of which is under the control of a controller (25) with a memory device (26) linked thereto. Predetermined settings for the monochromator corresponding to the peak settings for each wavelength of interest can be stored in memory (26) for subsequently driving the monochromator to those settings without the need to undertake a peaking routine for each elemental analysis, thereby saving analyses time. The lamp and beam selector arrangement of the apparatus substantially reduces the time required to change from one lamp to another thereby facilitating sequential spectroscopic multi-element analyses of samples. Apparatus which uses a flame for atomising a sample includes valves (19 and 20) for controlling the flow of oxidant (17) and fuel (18) gases to a spray chamber (23) and then analysis zone (8), the oxidant (17) being supplied via a nebuliser (22). The valves (19 and 20) are preferably high speed oscillating valves having an adjustable on to off time ration under the control of a microprocessor (21). The oscillating valves (19 and 20) allow rapid changes to be made to the oxidant and fuel gas flows, thereby also saving analysis time.
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公开(公告)号：ATA216899A
公开(公告)日：2001-04-15
申请号：AT216899
申请日：1999-12-22
Applicant: SCAN MESSTECHNIK GMBH
Abstract: Miniaturized spectrometer in the form of a probe for determining ingredients of a gaseous or liquid fluid with a light source and a spectrometer, at least one measurement beam, and at least one reference beam. Light from the light source is optionally fanned out and focused, by at least one optical lens, in an essentially parallel beam. At least one measurement beam is passed through a light transparent window from the probe into the fluid being investigated and through an additional light transparent window back in to the probe, and at least one reference beam is guided in the probe interior. A collecting optics device, comprising at least one lens, diverts the beams to the impingement point of the light guide or the inlet of the spectrometer, and a beam selector in the area of the collecting optics device passes through one of the partial beams and interrupts all the others.
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公开(公告)号：ZA9802011B
公开(公告)日：1999-09-10
申请号：ZA9802011
申请日：1998-03-10
Applicant: HOWARD FOUNDATION
Inventor： BONE RICHARD ANDREW , LANDRUM JOHN THOMAS , HUANG WENLUE , ORTA CARLOS MANUEL
CPC classification number: A61B3/02
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公开(公告)号：CA2252019A1
公开(公告)日：1999-04-29
申请号：CA2252019
申请日：1998-10-28
Applicant: KURASHIKI BOSEKI KK
Inventor： HIGASHI NOBORU
Abstract: An optical system for measuring an optical density of a sample in which homogeneity of light employed for measuring the density thereof is secured by including optical information upon a light source uniformly inside a measurement space about an optical axis therein even if the fluctuation occur in the light source in the system. A beam of light emitted from the light source and then focused on an interference filter is transformed into a parallel light through a collimator lens, and the parallel light is then split into two parallel pencils of light by an optical mask. The parallel light uniformly includes the optical information upon the light source. A reference cell is placed in a first split parallel pencil of light, and a sample cell is placed in a second split parallel pencil of light. The lights that have passed through the two cells are focused on an optical receiver by a focusing lens.
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公开(公告)号：FI982005A0
公开(公告)日：1998-09-17
申请号：FI982005
申请日：1998-09-17
Applicant: WALLAC OY
Inventor： VAEISAELAE MIKKO , NURMI JARMO , KORPI JARMO , HARJU RAIMO
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