EP0109536A1
Expired / Lapsed
EP
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Apparatus for absorptiometric analysis
Assignee: Toshiba Corp
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Filing: 1983-10-13
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Granted: —
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Expires: 2003-10-13
Abstract
Abstract Beam from a xenon flashed lamp (60) driven by a pulse drive system is guided through 12 illumination beam guiding optical fibers (64), to illuminate a reaction liquid contained in 12 reaction cuvettes (70) (with every 4 reaction cuvettes being located at each of 3 different measuring stations). Beam transmitted through the reaction liquid is so led as to be incident on 12 transmitted beam guiding optical fibers (80). The beam emission ends of the transmitted beam guiding optical fibers (80) are inserted into a support member (82) at positions thereof which fall on a circle. The rotor (86) is rotated in conjunction with a shaft (84). A pair of reflecting mirrors (88, 90) are secured to the rotor (86) and shaft (84), respectively. Beams emitted from the transmitted beam guiding optical fibers (80) are independently and consecutively led along the same optical path, to a pair of slit members (92, 96) disposed on the side of the rotor opposite the support member (82), while the rotor completes one rotation. Beam passed through the slit members (92, 96) is diffracted by a diffraction grating (98), and diffracted beams are detected by photo-detector array (100).
Inventors
- 👤 Tomiharu Minekane
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 23:56
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/251; G01N21/253; G01J; G01J3/00; G01J3/28; G01J3/2803; G01N2201/00; G01N2201/08; Y; Y10; Y10T; Y10T436/00; Y10T436/11; Y10T436/113332
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
288 words
An apparatus for absorptiometric analysis of reaction liquids contained in reaction vessels at n measuring points for m channels, comprising: illuminating means (60, 62) for emitting beam; means (64, 72, 74) for guiding illumination beam from the illuminating means to the reaction liquid contained in m x n reaction vessels, at n measuring points for m channels, the illumination beam guiding means including m x n illumination beam guiding optical fibers (64), with every m optical fiber thereof guiding beam from the illuminating means to each of the n measuring points; and means (76, 78, 80) for guiding transmitted beam, including m x n transmitted beam guiding optical fibers (80) for guiding beams transmitted through the reaction liquids in the respective m x n reaction vessels; characterized by comprising beam switch means (82, 84, 86, 88, 90) including support means (82) for supporting the beam emission ends of the transmitted beam guiding optical fibers. (80) in a circle and in such a way that beams emitted from the beam emission ends are substantially parallel to one another, a first reflecting mirror (88) being rotatably provided at a position of incidence of the beams from the transmitted beam guiding optical fibers, and a second reflecting mirror (90) for reflecting beams reflected from the first reflecting mirror, in such ' a way that beam reflected from the second reflecting mirror proceeds along a constant optical path; a plurality of slit members (92, 96) disposed along the optical path of beam reflected from the second reflecting mirror; a diffraction grating (98) for diffracting beam having been passed through the slit members; and a photo-detector array (100), including a plurality of photo-detector (102), for detecting diffracted monochromatic beams from the diffraction grating.
Claim 2
Independent Claim
288 words
An apparatus for absorptiometric analysis of reaction liquids contained in reaction vessels at n measuring points for m channels, comprising: illuminating means (60, 62) for emitting beam; means (64, 72, 74) for guiding illumination beam from the illuminating means to the reaction liquid contained in m x n reaction vessels, at n measuring points for m channels, the illumination beam guiding means including m x n illumination beam guiding optical fibers (64), with every m optical fiber thereof guiding beam from the illuminating means to each of the n measuring points; and means (76, 78, 80) for guiding transmitted beam, including m x n transmitted beam guiding optical fibers (80) for guiding beams transmitted through the reaction liquids in the respective m x n reaction vessels; characterized by comprising beam switch means (82, 84, 86, 88, 90) including support means (82) for supporting the beam emission ends of the transmitted beam guiding optical fibers. (80) in a circle and in such a way that beams emitted from the beam emission ends are substantially parallel to one another, a first reflecting mirror (88) being rotatably provided at a position of incidence of the beams from the transmitted beam guiding optical fibers, and a second reflecting mirror (90) for reflecting beams reflected from the first reflecting mirror, in such ' a way that beam reflected from the second reflecting mirror proceeds along a constant optical path; a plurality of slit members (92, 96) disposed along the optical path of beam reflected from the second reflecting mirror; a diffraction grating (98) for diffracting beam having been passed through the slit members; and a photo-detector array (100), including a plurality of photo-detector (102), for detecting diffracted monochromatic beams from the diffraction grating.
Claim 3
Dependent Claim
42 words
The apparatus according to claim 1, characterized in that the illuminating means includes a light source (60), which is driven by a pulse drive system to emit beam, such as a xenon flashed lamp, a mercury flashed lamp or a pulse laser.
Claim 4
Dependent Claim
83 words
The apparatus according to claim 2, characterized in that the illumination beam guiding means further includes beam path defining members (74), each of which is used for directing the beam emitted from each of the illumination beam guiding optical fibers (64) to the reaction liquid in each of the reaction vessels (70); and condenser lenses (74), each of which is interposed between each of the beam path defining members and the beam emission end of each of the illumination beam guiding optical fibers.
Claim 5
Dependent Claim
89 words
The apparatus according to claim 3, characterized in that the transmitted beam guiding means further includes transmitted beam path defining members (76), each of which is used for directing beam transmitted through the reaction liquid in each of the reaction vessels (70) to the beam receiving end of each of the transmitted beam guiding optical fibers (80); and condenser lenses (78), each of which is interposed between each of the transmitted beam path defining members and the beam receiving end of each of the transmitted beam guiding optical fibers.
Claim 6
Dependent Claim
203 words
The apparatus according to claim 2, characterized in that the supporting means includes a support member (82), the beam emission ends of the transmitted beam guiding optical fibers (80) being inserted into and secured to the support member (82) at positions thereof which fall in a circle; wherein the beam switch means further includes a shaft (84) having an axis coaxial with the center of the circle of the support member (82) and extending parallel to the beam emitted from the transmitted beam guiding optical fibers (80), the shaft (84) being rotatably supported in the support member, and a rotor (86) being secured to the shaft (84); and, wherein, the following conditions apply; the first reflecting mirror (88) is secured to the rotor (86); the second reflecting mirror (90) is secured to the shaft (84); the rotor (86) has a see-through hole (86a), through which the path of beam reflected by the second reflecting mirror (90) extends; and the transmitted beam emitted from each of the transmitted beam guiding optical fibers (80) is reflected by the first (B8) and second (90) reflecting mirrors and proceeds along a substantially constant beam path, through the see-through hole (86a) while the rotor (86) completes one rotation.-
Claim 7
Dependent Claim
49 words
The apparatus according to claim 5, characterized in that the beam emission end of each of the transmitted beam guiding optical fibers (80) has an elongate sectional shape, and the elongate beam emission ends of all of the transmitted beam guiding optical fibers (80) extend in the same direction.
Claim 8
Dependent Claim
39 words
The apparatus according to claim 6, characterized in that a pair of slit members (92, 96) is disposed between the rotor (86)'and diffraction grating (98), a condenser lens (94) being interposed between the pair of slit members (92, 96).
References Cited (Backward Citations)
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