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1. WO2002019384 - HOLLOW CATHODE LAMP, ATOMIC ABSORPTION ANALYZER, AND ATOMIC FLUORESCENCE ANALYZER

Publication Number WO/2002/019384
Publication Date 07.03.2002
International Application No. PCT/JP2001/007545
International Filing Date 31.08.2001
Chapter 2 Demand Filed 31.08.2001
IPC
G01N 21/31 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G01N 21/64 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
63optically excited
64Fluorescence; Phosphorescence
H01J 61/09 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
61Gas-discharge or vapour-discharge lamps
02Details
04Electrodes; Screens; Shields
06Main electrodes
09Hollow cathodes
CPC
G01N 21/3103
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
3103Atomic absorption analysis
G01N 21/6404
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
63optically excited
64Fluorescence; Phosphorescence
6402Atomic fluorescence; Laser induced fluorescence
6404Atomic fluorescence
H01J 61/09
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
61Gas-discharge or vapour-discharge lamps
02Details
04Electrodes
06Main electrodes
09Hollow cathodes
Applicants
  • HAMAMATSU PHOTONICS K.K. [JP]/[JP] (AllExceptUS)
  • IMAKAMA, Jyunichi [JP]/[JP] (UsOnly)
  • SHIMAZU, Yuji [JP]/[JP] (UsOnly)
Inventors
  • IMAKAMA, Jyunichi
  • SHIMAZU, Yuji
Agents
  • HASEGAWA, Yoshiki
Priority Data
2000-26564901.09.2000JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) HOLLOW CATHODE LAMP, ATOMIC ABSORPTION ANALYZER, AND ATOMIC FLUORESCENCE ANALYZER
(FR) LAMPE A CATHODE CREUSE, ANALYSEUR D'ABSORPTION ATOMIQUE ET ANALYSEUR DE FLUORESCENCE ATOMIQUE
Abstract
(EN)
A hollow cathode lamp (1), wherein a tubular member (8) is vertically installed on a stem (4) in a valve (2) to achieve an increase in productivity and a structure hard to produce the diffraction of discharge to an anode (7) from those other than a hollow cathode (10), whereby, the enclosure of the portion where the diffraction of discharge to the anode (7) is hard to occur can be achieved with such a simple structure that the tubular member (8) is installed vertically on the valve (2), the orderly arrangement of the hollow cathode (10) and the tubular member (8) using a tube axis (L) as the reference can be easily achieved by supporting a holder (11) on the end face (8c) of the tubular member (8) on a light outgoing window (3) side, and the holder (11) and hollow cathode (10) can be disposed concentrically to the tubular member (8) to increase the workability in assembly of the lamp (1).
(FR)
L'invention concerne une lampe à cathode creuse (1), dans laquelle un élément tubulaire (8) est placé verticalement sur un pied (4) dans un tube (2) permettant d'obtenir une augmentation de la productivité ainsi qu'une structure rendant difficile la génération de la diffraction de décharge vers une anode (7) autrement qu'à partir de la cathode creuse (10). Selon cette invention, l'enveloppe de la partie dans laquelle les diffractions de décharge vers l'anode (7) sont facilement générées est obtenue par une structure simple consistant en l'élément tubulaire (8) placé verticalement sur le tube (2). En outre, l'alignement entre la cathode creuse (10) et l'élément tubulaire (8), à l'aide d'un axe de tube (L) en tant que référence, peut être facilement réalisé au moyen d'un support (11) situé sur la surface d'extrémité (8c) du côté de la lumière sortante (3) de l'élément tubulaire (8). Le support (11) et la cathode creuse (10) peuvent être placés de manière concentrique par rapport à l'élément tubulaire (8) afin que la facilité du travail d'assemblage de la lampe (1) soit augmentée. (10) et l'élément tubulaire (8), à l'aide d'un axe de tube (L) en tant que référence, peut être facilement réalisé au moyen d'un support (11) situé sur la surface d'extrémité (8c) du côté de la lumière sortante (3) de l'élément tubulaire (8). Le support (11) et la cathode creuse (10) peuvent être placés de manière concentrique par rapport à l'élément tubulaire (8) afin que la facilité du travail d'assemblage de la lampe (1) soit augmentée.
Also published as
Latest bibliographic data on file with the International Bureau