WO2004051317A1 - 光センサ、ならびに分析装置における検知機構および測光機構 - Google Patents
光センサ、ならびに分析装置における検知機構および測光機構 Download PDFInfo
- Publication number
- WO2004051317A1 WO2004051317A1 PCT/JP2003/014863 JP0314863W WO2004051317A1 WO 2004051317 A1 WO2004051317 A1 WO 2004051317A1 JP 0314863 W JP0314863 W JP 0314863W WO 2004051317 A1 WO2004051317 A1 WO 2004051317A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- emitting
- receiving
- emission
- test tool
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/8483—Investigating reagent band
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/08—Optical fibres; light guides
Definitions
- the present invention relates to a technique for analyzing a specific component in a sample using a test device.
- a method for analyzing a specific component in a sample there is a method using an optical method.
- One example is the use of a color reaction generated by a test device. In such an analysis, the coloration of the test device may be visually determined, but the quantitative analysis of the concentration of the specific component is used in an analyzer.
- Some analyzers automatically quantify specific components by supplying test equipment to the analyzer. In such an analyzer, for example, as shown in FIG. 17, the light from the light source unit 992 is irradiated on the reagent pad 991 of the test tool 990, while the scattered light from the reagent pad 991 is received by the light receiving unit 993. received in, (see for example Japanese Unexamined Japanese Patent Publication No. 9- 145613) are carried out analysis of the sample Motodzure, Te in amount of light received at the light receiving portion 993 Q
- the light from the light source unit 992 is directly applied to the test tool 990, while the scattered light from the test tool 990 is directly received by the light receiving unit 993. Accordingly, in order to receive the scattered light from the test tool 990, the light source unit 992 and the light source unit 992 are tilted while the light receiving center axis S2 of the light receiving unit 993 is inclined with respect to the emission center axis S1 of the light source unit 992. It is necessary to arrange the light receiving unit 993. As a result, the distance between the light source unit 992 and the light receiving unit 993 must be increased, which hinders downsizing of the photometric mechanism employing the above-described method, and furthermore, the analysis device employing the photometric mechanism. In the method of receiving scattered light, There is also a problem that measurement errors easily occur.
- the test equipment was supplied. Must be recognized by the analyzer. In some cases, the recognition of the test equipment is performed by the user operating the operation switch of the analyzer, but usually it is automatically performed by the analyzer.
- recognition of a test tool in an analyzer is performed using an optical sensor.
- One example is the use of scattered light from a test tool 994 as shown in FIG.
- the light emitted from the light source unit 995 is emitted toward the target site where the test tool 994 should be illuminated, and the scattered light traveling from the target site is received by the light receiving unit 996. Then, it is detected that the test tool 994 has been placed on the target site.
- the test tool 994 is not limited to the target site 3 ⁇ 4 ⁇ , but the user's hand s traverses above the target site, or the test tool 994 force S position above the target site. Ij ⁇ , reflected light may be received by the light receiving unit 996.
- the analyzer may notice that the test tool 994 has been placed on the target site, and may start the operation for performing the analysis. Disclosure of the invention
- An object of the present invention is to reduce the size of an optical sensor that can be used as a photometric mechanism of an analyzer, and to reduce the size of the entire analyzer including the photometric mechanism.
- This effort also aims at suppressing the erroneous detection at the age of detecting the test device by an optical method in the analyzer, for another purpose.
- one or more light emitting units for irradiating an object with light
- one or more light receiving units for receiving reflected light from the object.
- An optical sensor wherein the one or more light emitting parts and the one or more light receiving parts are arranged such that an emission center axis of the one or more light emitting parts and a light receiving central axis of the one or more light receiving parts are mutually aligned;
- An optical sensor which is arranged so as to be approximately or approximately TO, is used.
- one or more light emitting portions for irradiating light to a test tool used for analyzing a sample, and receiving light reflected from the test tool.
- a photometric mechanism for a test device comprising: at least one light receiving section; The upper light emitting portion and the one or more light receiving portions are arranged such that the emission center axis of the one or more light emitting portions and the light receiving central axis of the one or more light receiving portions are alternately or substantially TO.
- a photometric mechanism for the test equipment is arranged.
- At least one of light traveling from one or more light emitting portions to the fiber (test tool) and light traveling from the work (test tool) to the one or more light receiving portions is preferable to further include a light guiding means for defining the light traveling path.
- the light guide means includes, for example, one or more first incident areas for introducing light emitted from one or more light output ft portions into the inside of the light guide means, and One or more first emission areas for emitting the light introduced into the object toward the object (test tool), and the reflected light from the object (test tool) are transmitted into the light guide means.
- One or more second X ⁇ regions for introduction, and light reflected on the object (test tool) and then introduced inside the light guide means is emitted toward one or more light receiving parts.
- one or more second emission regions for At least one of the one or more first incidence regions, the one or more first emission regions, the one or more second incidence regions, and the one or more second emission regions emits light that slilies the regions. It is configured to be refracted.
- the light guide means is configured to include, for example, a lens or a prism.
- the one or more first emission regions and the one or more second incidence regions in the light guide unit may be configured as a plane orthogonal or substantially orthogonal to the emission center axis of the one or more light emission units.
- the light guide means is configured to have, for example, a core part extending along the emission center axis, and an outer shell part surrounding the core part that has a lower refractive index than the core part.
- the outer shell function as a cladding layer, the entire light guiding means can be configured as an optical fiber.
- the light guide means may also be configured to include: an optical fiber portion extending along the emission center axis; and an outer shell surrounding the optical fiber portion.
- the optical sensor and the photometric mechanism according to the present invention receive, for example, one or more light beams reflected from a vehicle (test device) at a target angle among light beams reflected from the vehicle (test device). It is configured as further provided with a light blocking means for selectively entering the light section. This: ⁇ , the target angle is set to, for example, 45 degrees or approximately 45 degrees.
- the light blocking means can be configured as having an opening for selectively exposing one or more first emission areas and one or more second incidence areas.
- the light shielding means is configured to include, for example, a ring-shaped portion surrounding at least one of the one or more first emission regions and the one or more second incidence regions.
- the light blocking means includes a plurality of first emission regions or a plurality of second AI regions. It is also possible to form an opening that exposes one emission region or a plurality of second incidence regions in series.
- one or more light emitting portions are formed of one light emitting portion
- one or more light receiving portions are formed of a plurality of light receiving portions
- the plurality of light receiving portions are arranged so as to surround one light emitting portion, for example.
- At least one light emitting portion s While the plurality of light emitting portions is composed of a plurality of light emitting portions, the one or more light receiving portions are composed of one light receiving portion. May be arranged. In this case, it is preferable that the plurality of light emitting portions include two or more light emitting portions that emit light having different peak wavelengths.
- the one or more light receiving units are configured to receive scattered light reflected by a passing object (test tool) among the light emitted from the one or more light emitting units.
- the optical sensor and the photometric mechanism of the present invention may be configured to include a wavelength selector for selecting a wavelength of light to be incident on one or more light receiving units, and may be emitted from one or more light emitting units. It can also be configured as having a wavelength selector for selecting the wavelength of the light.
- the wavelength selection unit can be constituted by, for example, an interference filter or a color filter.
- a detection mechanism for detecting a force applied by a test tool to a target area, and a light emitting unit for emitting light toward the target area. And a light receiving unit for receiving the reflected light from the test tool.
- a detection mechanism for a test tool comprising: a light receiving unit, among the light emitted from the light emitting unit, A detection mechanism of the test tool, which is configured to selectively receive the specularly reflected light, is provided.
- a detection mechanism for detecting whether or not a test tool exerts a force on a target area and a light emitting unit for emitting light toward the target area.
- a light receiving unit for receiving the reflected light from the test tool, wherein the light from the light emitting unit to the target region and the light from the target region to the light receiving unit At least one of the lights is configured to be refracted.
- the detection mechanism of the present invention further includes a light guiding means for defining a traveling path of at least one of light traveling from the light emitting section toward the target area and light traveling from the target area to the light receiving section. It is constituted as.
- the light guide means includes, for example, a first incident area for introducing light emitted from the light emitting unit into the light guide means, and a light introduced from the light output unit into the light guide means.
- the light guiding means includes, for example, a prism or a lens.
- the light guiding means includes a cylindrical lens or a Fresnel lens.
- the light guide means can be configured to include a lens having an uneven surface, and a cover for covering the uneven surface and making the upper surface of the light guide means a flat surface.
- a lens having a concave-convex surface Fullnelnz can be mentioned.
- the light emitting section is configured to have a light emitting diode.
- one or more light emitting portions for irradiating light to a test tool used when analyzing a sample, and receiving reflected light from the test tool are received.
- a light-measuring mechanism having at least one light-receiving section for irradiating the test tool with light to detect whether or not the test tool is present in a target area, and reflection from the test tool.
- a detection mechanism having a light receiving portion for receiving light; and an at least one light emitting portion and at least one light receiving portion in the photometric mechanism.
- An analyzer that is configured to selectively receive light regularly reflected by the test tool among light emitted from the light emitting unit in the above.
- the “emission center axis” refers to the light amount distribution of light emitted from the light emission part! The axis along the direction where the amount of emitted light is the greatest.
- the “light receiving central axis” refers to an axis along a normal line of a portion where the amount of received light is largest, in accordance with a light amount distribution of light received by the light receiving unit.
- FIG. 1 is an overall diagram showing an example of an analyzer according to the present invention.
- FIG. 2 is a perspective view showing the internal configuration of the analyzer shown in FIG.
- FIG. 3 is a cross-sectional view taken along the line II-IE of FIG.
- FIG. 4 is a sectional view taken along the line IV-IV in FIG.
- FIG. 5 is a cross section ⁇ along the line VV in FIG.
- FIG. 6 is a sectional view taken along the line VI-VI of FIG.
- FIG. 7 is a sectional view taken along the line VII-W in FIG.
- FIG. 8 is a perspective view showing a main part of the photometric mechanism.
- FIG. 9 is a cross-sectional view for explaining the operation of the photometric mechanism.
- 10A to 10E are cross-sectional views illustrating another example of the detection mechanism.
- FIG. 11 is a perspective view showing another example of the optical sensor in the photometric mechanism.
- FIG. 12 is a cross-sectional view taken along the line X-X in FIG.
- FIGS 13A to 13C are cross-sectional views showing still another example of the optical sensor in the photometry mechanism.
- FIG. 14A is a sectional view showing still another example of the optical sensor in the photometric mechanism
- FIG. 14B is a bottom view of the optical sensor shown in FIG.
- 15A and 15B are bottom views showing still another example of the optical sensor in the photometric mechanism. .
- FIG. 16 is a sectional view of an optical sensor for explaining another example of the light shielding means.
- FIG. 17 is a schematic diagram for explaining an example of a conventional photometric mechanism.
- FIG. 18 is a schematic diagram for explaining an example of a conventional test tool detection method.
- the analyzer 1 shown in FIGS. 1 and 2 has a configuration in which a stage 3, a detection mechanism 4, a transport mechanism 5, and a photometric mechanism 6 are provided inside a housing 2.
- the housing 2 is provided with a plurality of operation buttons 20 and a display 21, and an introduction portion 22 for mounting the test tool 7 on the stage 3.
- the introduction portion 22 communicates with the inside of the housing 2 and is formed as a notch that exposes a part of the power stage 3.
- a test tool 7 is used in which a plurality of reagent pads 71 are provided on the surface of a strip-shaped stub 70 so as to be arranged in the longitudinal direction of the base material 70. Is done.
- the reagent pad 71 contains a reagent that develops a color by reacting with a specific component in the sample.
- the stage 3 has a guide portion 30 for guiding the movement of a slide block 50 of the transport mechanism 5 described below, and a concave portion 31 for exposing the back surface of the test tool 7 placed on the stage 3. ing.
- a prism 42 of the detection mechanism 4 described later is embedded in the concave portion 31.
- stage 3 ' a mounting area 32 and a photometric area 33 are set.
- the placement area 32 is an area for placing the test tool 7 introduced into the housing 2 via the introduction section 22 (see FIG. 1).
- the photometry area 33 is an area for photometry of a specific component in the sample supplied to the reagent pad 71 by the photometry mechanism 6.
- the detection mechanism 4 is for detecting the force of the test device 7 placed on the placement area 32, and as shown in FIG. 3, the light emitting unit 40, the light receiving unit 41, and the light guiding unit are provided.
- the prism 42 is provided as a reference.
- the light emitting section 40 is for emitting light toward the upper part of the stage 3, and the test tool 7 is mounted on the mounting area 32: ⁇ indicates that the light is applied to the back surface of the test tool 7. Can be illuminated.
- the light emitting section 40 is fixed to the prism 42 such that the emission center axis L1 is oriented in the thickness direction of the stage 3 (vertical direction in FIG. 3).
- the light receiving section 41 is for receiving light traveling from above the stage 3, and the light receiving central axis L2 is
- the light emitting unit 40 is fixed to the prism 42 so as to be substantially equal to TO or the central axis LI of the light emitting unit 40.
- the light emitting section 40 is formed of, for example, a light emitting diode, and the light receiving section 41 is formed of, for example, a photodiode.
- the light emitting unit 40 and the light receiving unit 41 do not necessarily need to be fixed to the prism 42, and the detection mechanism 4 may be configured to be separated from the prism 42.
- the prism 42 has light guide portions 43 and 44 and is formed entirely transparent. These light guides 43 and 44 are defined by slits 45. The slit 45 is for suppressing the light from the light emitting unit 40 from being directly received by the light receiving unit 41.
- the light guide section 43 has a concave portion 46 for fitting and fixing the light emitting section 40.
- the bottom surface of the concave portion 46 constitutes an incident surface 46A for introducing the light from the light emitting portion 40 into the light guide 43.
- This incident surface 46A is orthogonal to the emission center axis L1.
- the light guide unit 43 further has an emission surface 43A for emitting the light inside the light guide unit 43 upward of the stage 3.
- the outgoing surface 43A is a plane oblique to the outgoing central axis L1 (light receiving central axis L2), and refracts light passing through the outgoing surface 43A.
- the light guide 44 has an entrance surface 44 ⁇ for introducing the reflected light from the test tool 7 into the light guide 44.
- the entrance surface 44 ⁇ is a plane that is generally inclined with respect to the light receiving central axis L2 (the exit central axis L1), opposite to the exit surface 43A, and refracts light that passes through the Alt surface 44A.
- the incident surface 44A is placed on the placement area 32 of the stage 3 in the light emitted from the exit surface 43A toward the upper part of the stage 3.
- the configuration is such that the reflected light travels along the light receiving central axis L2 inside the light guide 44.
- the light guide 44 further has a concave portion 47 for fitting and fixing the light receiving portion 41.
- the bottom surface of the concave portion 47 forms an emission surface 47A for emitting the light inside the light guide portion 44 toward the light receiving portion 41.
- the exit surface 47A is orthogonal to the light receiving central axis L2.
- the light emitted from the light emitting unit 40 is introduced into the light guiding unit 43 via the incident surface 46A, then travels straight along the emission center axis L1, and is guided through the emitting surface 43A.
- the test tool 7 is located in the installation area 32 of the stage 3, the light exits from the light guide 43. Les ,.
- the light power emitted from the light guide 43 is applied to the back surface of the S test tool 7, and the reflected light at that time is reflected by the light guide. The light enters the 44 incidence surface 44A.
- the light that is specularly reflected on the back surface of the test tool 7 is selectively introduced into the light guide 44.
- the light introduced into the light guide unit 44 is emitted from the emission surface 47A after traveling straight along the light receiving central axis L2, and is received by the light receiving unit 41.
- the specularly reflected light when the test tool 7 is placed on the placement area 32; ⁇ is positively introduced into the light guide section 44 of the prism 42, and is reflected by the light receiving section 41. It is configured to receive light. Therefore, when the test tool 7 is placed in the placement area 32 and is in a good condition, for example, as shown by the phantom line in FIG. Light is not introduced into the prism 42. Therefore, even if the test equipment 7 is not placed in the area 32, it is possible to suppress the occurrence of a situation when it is detected that the test equipment 7 is placed. Can be done.
- Light emitting diodes have lower directivity than laser diodes. Therefore, if a light emitting diode is employed as the light emitting section 40 of the detection mechanism 4, as shown in FIG. 4, the light from the light emitting section 40 is emitted from the light guide section 43 while spreading. Therefore, if a light emitting diode is used as the light emitting unit 40, it is possible to irradiate light over a relatively wide range, and therefore, it is necessary to detect whether or not the test tool 7 is mounted. Can be increased. As a result, the user manually places the test tool 7: In ⁇ ⁇ , it is detected that the test tool 7 has been placed even if the test tool 7 is not placed in a strictly positioned state.
- the burden on the user when placing the test tool 7 is reduced.
- the light emitting unit 40 and the light receiving unit 41 are arranged such that the emission center axis L1 and the light receiving center axis L2 are TO.
- the distance between the light emitting unit 40 and the light receiving unit 41 is set smaller than in a configuration in which the light emitting unit and the light receiving unit are arranged so that the central axis of the light emitting and the central axis of the light receiving are mutually deviated. it can.
- the size of the detection mechanism 4 has been reduced.
- the size of the analyzer 1 can be reduced.
- the transport mechanism 5 mounts the test tool 7 on the stage 3 as shown in FIGS. This is for moving from the storage area 32 to the photometry area 33.
- the transport mechanism 5 includes a slide block 50 capable of reciprocating on the upper surface of the stage 3 in the directions indicated by arrows D1 and D2 in the figure, and a guide rod 51 for reciprocating the slide block 50.
- the slide block 50 has an interference portion 50A that slides on the upper surface of the stage 3 and a connection portion 50B that is movable relative to the guide rod 51.
- the connecting portion 50B is provided with a through-hole 50b having a screw groove (not shown) formed on an inner surface thereof.
- a thread (not shown) is formed on the surface of the guide rod 51, and the guide rod 51 is screwed to the slide block 50 through the through hole 50b. Therefore, by rotating the guide rod 51, the slide block 50 can be moved according to the rotation direction of the guide rod 51.
- the rotation of the guide rod 51 is performed, for example, by connecting the guide rod 51 to a power source such as a motor (not shown) and using an output from the power source. Then, by rotating the guide rod 51 in a predetermined direction to move the slide block 50 in the direction of arrow D1 in the figure, the test tool 7 can be moved from the mounting area 32 to the photometric area 33. .
- the photometric mechanism 6 is for optically measuring the coloration of the reagent pad 71 of the test tool 7.
- the photometric mechanism 6 includes a slider 60 that can reciprocate along the surface of the stage 3 in the directions indicated by arrows D3 and D4 in the drawing, a guide rod 61 for reciprocating the slider 60, and a slider 60. And an optical sensor 8 held in the main body.
- the slider 60 has a through hole 60b in which a screw groove (not shown) is formed on the inner surface.
- the guide rod 61 has a thread (not shown) formed on the surface thereof, and is screwed to the slider 60 via a through hole 60b. Therefore, by rotating the guide rod 61, the slider 60 and, consequently, the optical sensor 8 can be moved in the directions of arrows D3 and D4 in the figure according to the rotation direction of the guide rod 61.
- the rotation of the guide rod 61 is performed, for example, by connecting the guide rod 61 to a power source such as a motor (not shown) and using the output from this power source.
- the optical sensor 8 has a light emitting unit 80, a light receiving unit 81, and a prism 82 as shown in FIGS.
- the light emitting section 80 is for emitting light toward the stage 3 and has an emission center.
- the axis L3 is fixed to the prism 82 so as to face the thickness direction of the stage 3 (vertical direction in FIG. 7).
- the light receiving section 81 is for receiving light traveling from the stage 3 and is fixed to the prism 82 such that the light receiving central axis L4 coincides with or substantially TO the emission central axis L3 of the light emitting section 80.
- the light emitting section 80 is formed of, for example, a light emitting diode
- the light receiving section 81 is formed of a light emitting diode.
- it is composed of a photodiode.
- the prism 82 has a light guide section 83 and a light guide section 84, and is formed entirely transparent. These regions 83 and 84 are defined by slits 85.
- the slit 85 is for suppressing the light from the light emitting unit 80 from being directly received by the light receiving unit 81.
- the light guide 83 has a concave portion 86 for fitting and fixing the light emitting portion 80.
- the bottom surface of the concave portion 86 constitutes an incident surface 86A for introducing light from the light emitting portion 80 into the light guide portion 83.
- This incident surface 86A is orthogonal to the emission center axis L3.
- the light guide unit 83 further has an emission surface 83A for emitting light inside the light guide unit 83 toward the test tool 7.
- the outgoing surface 83A is a flat surface inclined with respect to the outgoing central axis L3 (light receiving central axis L4), and refracts the light that travels through the outgoing surface 83A.
- the light guide 84 has an entrance surface 84 ⁇ for guiding the light from the test tool 7 into the light guide 84.
- This incident surface 84 ° is orthogonal to the light receiving central axis L4 (the emitting central axis L3).
- the surface 84A refracts the scattered light from the test tool 7 that travels along the light receiving central axis L4 of the light emitted from the output face 83A toward the test tool 7. It is configured to travel along the light receiving central axis L4 inside the light guide 84 without any light.
- the light guide 84 further has a concave portion 87 for fitting and fixing the light receiving portion 81.
- the bottom surface of the concave portion 87 forms an emission surface 87A for emitting light inside the light guide 84 toward the light receiving portion 81.
- the exit surface 87A is orthogonal to the light receiving central axis L4.
- the optical sensor 8 is moved together with the slider 60 in the directions indicated by arrows D3 and D4 (longitudinal direction of the test tool 7) by rotating the guide rod 61. Therefore, in the photometric mechanism 6, the light is emitted by the light emitting unit 80 while moving the optical sensor 8 in the longitudinal direction of the test tool 7, so that the light is emitted to all of the plurality of reagent pads 71. Irradiation W can. On the other hand, the light receiving section 81 can receive the scattered light from each reagent pad 71.
- the light emitting unit 80 and the light receiving unit 81 are arranged such that the emission center axis L3 and the light receiving center axis L4 are mutually aligned. For this reason, as shown in FIG. 59 by virtual hypothesis, the light emitting section 8 (and the light receiving section 81 are arranged so that the emission central axis! ⁇ And the light receiving central axis L4 are mutually non-f. In comparison, the distance between the light emitting section 80 and the light receiving section 81 can be set to be small in the optical sensor 8. As a result, the optical sensor 8 can be downsized, and the photometric mechanism 6 and the analyzer 1 can be downsized. Will be able to do it.
- the emission surface 83A is oblique to the emission center axis L3 (light reception center axis L4), while the AI surface 84A is orthogonal to the light reception center axis L4 (emission center axis L3).
- the Alt surface 84A is inclined with respect to the light reception center axis L4 (emission center axis L3).
- both the emission surface and the incidence surface may be inclined with respect to the emission center axis L3 and the light reception center axis L4.
- the present invention is not limited to the above embodiment.
- the configuration shown in FIGS. 10A to 10E can be used for the detection mechanism, and the configuration shown in FIGS. 11 to 16 can be used for the optical sensor.
- the detection mechanism 4A shown in FIG.10A the light guide means is configured as a prism 42A, but this prism 42A turns the prism 0 42 upside down in the detection mechanism 4 (see FIG. 3 etc.). Configuration.
- the guiding means is configured as a cylindrical lens 42B.
- the detection mechanism 4C shown in FIG. 10C has a light guide means configured as a full-lens lens 42C.
- This Fresnel lens 42C has a plurality of convex portions 42Ca, and the upper surface of the five has an uneven surface.
- the detection mechanism 4C further has a cover 42Cb that covers the projection 42Ca.
- the upper surface of the detection mechanism 4C is a flat surface.
- the detection mechanism 4D shown in FIG. 10D has a structure in which a force par 42Db is formed on the upper surface (irregularity ffi) of the Fresnel lens 42D.
- the upper surface of this detection mechanism 4D is also flat.
- the detection mechanisms 4C and 4D shown in FIGS. I0C and 10D since the upper surface of the light guide is flat, the upper surface is a curved surface or a curved surface (see FIGS. 3, 10A and 10D).
- the height of the central part can be reduced compared to 10B). Therefore, in the detection mechanisms 4C and 4D, the dimensions of the detection mechanisms 4C and 4D can be reduced.
- the light guide means is configured as a lens 42E obtained by combining a cylindrical lens and a Fresnel lens.
- the upper surface of the lens 42E may be covered with a cover.
- the optical sensor 8A shown in FIG. 11 and FIG. 12 includes one light emitting portion 90, four light receiving portions 91, a light guiding means 92 formed in a columnar shape, and formed transparent. It has.
- the light guiding means 92 has an annular concave portion 95.
- the concave portion 95 is for partitioning the light guide 92 into a light guide 93 and a light guide 94.
- the light guide 93 has a columnar shape and has a concave portion 96 for fixing the light emitting portion 90.
- the light emitting section 90 is constituted by, for example, a white LED.
- the bottom surface 96 A of the concave portion 96 forms a ⁇ ! ⁇ surface for introducing the light emitted from the light emitting portion 90 to the light guide portion 93.
- the entrance surface 96 ⁇ is orthogonal to the emission center axis L3 of the light emission section 90.
- the light guide section 93 further has an exit surface 93 # for emitting the light in the light guide section 93 to the outside.
- the exit surface 93A is configured as a plane orthogonal to the exit center axis L3 (TO 1 on the entrance surface 96A).
- the light guide section 94 has an annular shape, and has an incident surface 94A oblique to the light receiving central axis L4 of the light receiving section 91. This incident surface 94A is configured as a curved surface.
- the light guide section 94 has four recesses 97 for fixing the light receiving section 91. These recesses 97 are provided concentrically so as to surround the recess 96 of the light guide 93. Therefore, the four light receiving sections 91 are arranged so as to surround the light emitting section 90, and are arranged such that the force, and the light receiving central axis L 4 thereof becomes TO with the light emitting central axis L 3 of the light emitting section 90.
- each concave portion 97 has an emission surface for allowing light to enter the light receiving portion 91. Make up.
- a wavelength selector 97B is provided at the bottom of each recess 97.
- the four wavelength selectors 97B transmit light of different wavelengths, respectively. Therefore, in each light receiving section 91, light of a different wavelength is selected.
- the wavelength selection unit 97B is configured by, for example, an interference filter or a color filter.
- each light receiving unit 91 receives light having a different wavelength among the light emitted from the light emitting unit 90 and reflected by the reagent pad 71. Therefore, even when the test tool 7 is configured to measure a plurality of analysis items having different measurement wavelengths, the wavelength selected by the wavelength selection unit 97B can be appropriately determined. Be able to measure.
- the emission center axis L3 of the light emission unit 90 and the light reception center axis L4 of each light reception unit 91 are arranged to be ⁇ ff. Therefore, with the optical sensor 8A, the size of the optical sensor 8A and the size of the photometric mechanism can be reduced in the same manner as the optical sensor 8 described above (see Fig. 7! / Fig. 9). It becomes.
- the optical sensor 8B shown in FIG. 13A has four light emitting sections 90 'and one light receiving section 91.
- the light emitting section The configuration is such that the arrangement of the and the light receiving unit is switched. That is, a light receiving section 91 / is arranged at the center of the light guide means 92, and four light emitting sections 9 (are arranged so as to surround the light receiving section.
- Each light emitting section 90 'and the light receiving section 91' are arranged.
- the light is irradiated onto the reagent pad 71 by the four light emitting portions 9 (/), and the reflected light from the reagent pad 71 is received by one light receiving portion 91 /.
- the optical sensor 8 it is possible to increase the amount of light irradiated on the reagent pad 71 and to secure a larger amount of light received by the light receiving unit 93 /, thereby, even if the amount of scattered light tends to be smaller. Even when photometry is performed based on, the photometry can be performed appropriately.
- a wavelength selecting section is provided in the concave section 9 for fixing the light emitting section 9 ( Alternatively, the wavelength of the light incident on each of the recesses 97 and the power guiding means 92 may be selected. Depending on the configuration of the test tool 7, it may be designed whether each wavelength selector is configured to emit light of the same wavelength and emit light of different wavelengths.
- the optical sensor 8C shown in FIG. 13B has the same configuration as the optical sensor 8A (see FIG. 11 and FIG. 12) except that the optical fiber 9 'constitutes a light guide for emission.
- the optical fiber 93 has a transparent core 93 and a cladding 93C 'surrounding the core 93 and having a smaller refractive index than the power core 93'.
- the optical fiber 93 ' is surrounded by an outer shell 94 ,.
- the light from the light emitting section 90 can be efficiently irradiated on the reagent pad 71 by the action of the optical fiber 93 '. As a result, the amount of light received by the light receiving section 91 can be improved.
- the optical sensor 8D shown in FIG. 13C is, like the optical sensor 8C (see FIG. 13B), a light guiding means 92 ", a core 93", and an outer shell 94 "surrounding the core 93". And. However, in the optical sensor 8D, the 'core portion 93 has a higher refractive index than the outer shell portion 94', and the outer shell portion 94 functions as a cladding layer. The optical sensor 8D also efficiently irradiates the light from the light emitting unit 90 to the reagent pad 71, thereby improving the amount of light received by the light receiving unit 91. .
- the optical sensor 8A shown in FIG. 14A has the same structure as the optical sensor 8A shown in FIGS. 11 and 12 except that a light-shielding mask 88 is formed so as to cover the exit surface 93A and the incident surface 94A of the light guide 92. It is a form that was.
- the light-shielding mask 88 causes the light reflected at 45 degrees or approximately 45 degrees at the reagent pad 71 among the light reflected from the reagent pad 71 of the test tool 7 to be incident on the light guide means 92 and, consequently, the light receiving unit 91 It is for.
- the light-blocking mask 88 is designed to easily absorb light as a whole, and as shown in FIG. 14B, five through holes 88 a corresponding to the total number of the light emitting section 90 and the light receiving section 91. , 88b are formed.
- the cross-hatched portion is the light shielding mask 88.
- the through hole 88 a transmits light emitted from the light emitting portion 90 and emitted from the power guiding device 92.
- the through hole 88 b is for passing the light reflected by the reagent pad 71 toward the light guide means 92.
- Such a light shielding mask 88 can be formed by, for example, vapor deposition or printing using a black resin material.
- the light receiving section 91 can selectively Alt the reflected light required for photometry, and the analysis accuracy can be improved by using the optical sensor 8E. become able to.
- the light shielding means may be in the form as shown in FIGS. 15A and 15B.
- the light-shielding mask 88 'shown in FIG. 15A has an annular through hole 88b' for passing the light reflected by the reagent pad 71 (see FIG. 14A) toward the light guide 92. That is, the configuration is such that one through-hole 88 b ′ limits Alt light to all the light receiving sections 91.
- the light-shielding means shown in FIG. 15B is configured to include four annular light-shielding masks 88 "provided individually for each light receiving section 91. c
- the light shielding means 89 is formed separately from the light guiding means 92 and is disposed separately from the power guiding means 92.
- the light shielding means 89 is clearly shown in the drawing. However, through holes 89a and 89b having the same form as the light shielding masks 88 and 88 'shown in Fig. 14B or Fig. 15A are provided. Structure: At t, the light shielding means 89 is fixed to, for example, the slider 60 (see FIG. 7) so that it can move together with the light guiding means 92.
- the configuration of the light-shielding masks 88, 88, 88 and the light-shielding means 89 described with reference to FIG. 14 and FIG. 16 is merely an example, and as long as the target reflected light can be selectively received by the light-receiving unit. Can be changed in various ways. Further, not only the optical sensors shown in FIGS. 11 and 12 but also other types of optical sensors can employ the light shielding means.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03774116.2A EP1566664B1 (en) | 2002-11-26 | 2003-11-20 | Light sensor, and detecting mechanism and light-measuring mechanism in analyzing device |
CN200380104295.7A CN1717596B (zh) | 2002-11-26 | 2003-11-20 | 光传感器、以及分析装置的检测机构和测光机构 |
US10/537,003 US7382460B2 (en) | 2002-11-26 | 2003-11-20 | Light sensor, and detecting mechanism and light-measuring mechanism in analyzing device |
AU2003284613A AU2003284613A1 (en) | 2002-11-26 | 2003-11-20 | Light sensor, and detecting mechanism and light-measuring mechanism in analyzing device |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002342104A JP4088142B2 (ja) | 2002-11-26 | 2002-11-26 | 光センサ、試験用具の測光機構、およびこの測光機構を備えた分析装置 |
JP2002-342103 | 2002-11-26 | ||
JP2002342103A JP4148761B2 (ja) | 2002-11-26 | 2002-11-26 | 試験用具の検知機構、およびこの検知機構を備えた分析装置 |
JP2002-342104 | 2002-11-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004051317A1 true WO2004051317A1 (ja) | 2004-06-17 |
Family
ID=32473644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/014863 WO2004051317A1 (ja) | 2002-11-26 | 2003-11-20 | 光センサ、ならびに分析装置における検知機構および測光機構 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7382460B2 (ja) |
EP (1) | EP1566664B1 (ja) |
AU (1) | AU2003284613A1 (ja) |
WO (1) | WO2004051317A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW568772B (en) * | 2002-12-31 | 2004-01-01 | Veutron Corp | Apparatus with a combination of a point light source and a single lens |
DE102005021383A1 (de) * | 2005-05-04 | 2006-11-09 | Robert Bosch Gmbh | Handwerkzeugmaschine mit Arbeitsfeldbeleuchtung |
US9939533B2 (en) | 2012-05-30 | 2018-04-10 | Lucerno Dynamics, Llc | System and method for the detection of gamma radiation from a radioactive analyte |
US9002438B2 (en) * | 2012-05-30 | 2015-04-07 | Lucerno Dynamics | System for the detection of gamma radiation from a radioactive analyte |
CN104111229A (zh) * | 2013-04-16 | 2014-10-22 | 深圳中科卉而立生物科技有限公司 | 一种光路探测装置 |
TWI485370B (zh) * | 2013-06-04 | 2015-05-21 | Chroma Ate Inc | 發光元件點測機台 |
WO2015189170A1 (en) * | 2014-06-10 | 2015-12-17 | Sanofi-Aventis Deutschland Gmbh | Apparatus for determining information associated with reflection characteristics of a surface |
USD739952S1 (en) * | 2014-11-18 | 2015-09-29 | Ellen Meng | Adhesive film mounted adulteration test panel |
JP6767072B2 (ja) * | 2015-10-06 | 2020-10-14 | アズビル株式会社 | 距離設定型光電センサ |
US10508935B2 (en) * | 2015-10-15 | 2019-12-17 | Advanced Semiconductor Engineering, Inc. | Optical module and manufacturing process thereof |
US11802830B2 (en) * | 2019-08-30 | 2023-10-31 | Toto Ltd. | Toilet seat apparatus and excrement detection apparatus |
CN118633020A (zh) * | 2022-02-01 | 2024-09-10 | 沃拉克有限公司 | 侧向流动测试条带读取器和相关方法 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57151837U (ja) * | 1981-03-18 | 1982-09-24 | ||
JPS6035244A (ja) * | 1983-08-05 | 1985-02-23 | Victor Co Of Japan Ltd | 反射光検出器の製造方法 |
JPH0381582U (ja) * | 1989-12-12 | 1991-08-20 | ||
JPH0543091U (ja) * | 1991-11-13 | 1993-06-11 | 株式会社コパル | 多点スポツト式エリア監視装置 |
JPH0687522A (ja) * | 1992-02-25 | 1994-03-29 | Vens Sa | コンベヤ上の物体を検出する方法および装置と、そのコンベヤ設備 |
JPH06201844A (ja) * | 1992-12-28 | 1994-07-22 | Sony Corp | 位置検出装置 |
JP2000089394A (ja) | 1998-07-13 | 2000-03-31 | Canon Inc | 原稿検知装置及び検知装置 |
JP2000131405A (ja) * | 1998-10-27 | 2000-05-12 | Hitachi Ltd | リチウム電池の残存容量測定方法とその測定装置 |
JP2002055174A (ja) * | 2000-08-09 | 2002-02-20 | Sharp Corp | 光反射型センサ |
JP2002303679A (ja) * | 2001-04-03 | 2002-10-18 | Glory Ltd | 紙葉類に貼着されたテープ体の検出方法及び装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3016464A (en) * | 1959-06-10 | 1962-01-09 | Daystrom Inc | Apparatus for determining the location and thickness of a reflecting object |
US4283146A (en) * | 1978-11-30 | 1981-08-11 | Lasag S.A. | Optical detector |
DE3106835A1 (de) | 1981-02-17 | 1982-09-02 | Siemens AG, 1000 Berlin und 8000 München | Differenzdruck-messeinrichtung |
DE3304780A1 (de) * | 1983-02-11 | 1984-08-30 | Rodenstock Optik G | Vorrichtung zur ermittlung einer oberflaechenstruktur, insbesondere der rauheit |
DE3503858A1 (de) * | 1985-02-05 | 1986-08-21 | Daimler-Benz Ag, 7000 Stuttgart | Vorrichtung zur ermittlung von gestaltsfehlern niedriger ordnung |
JPH0381582A (ja) | 1989-08-24 | 1991-04-05 | Mitsubishi Electric Corp | 圧縮機の防振装置 |
US5160981A (en) * | 1989-09-07 | 1992-11-03 | Fuji Photo Film Co., Ltd. | Method of measuring the reflection density of an image |
JPH0543091A (ja) | 1991-08-06 | 1993-02-23 | Fuji Xerox Co Ltd | 画像読取り装置の原稿重送検知装置 |
US5625459A (en) * | 1995-03-03 | 1997-04-29 | Galileo Electro-Optics Corporation | Diffuse reflectance probe |
AU676270B1 (en) | 1995-09-05 | 1997-03-06 | Bayer Corporation | Diffused light reflectance readhead |
US6184991B1 (en) * | 1999-04-19 | 2001-02-06 | Hewlett-Packard | Apparatus and method of measuring dry time of printing composition |
JP2001133395A (ja) | 1999-11-08 | 2001-05-18 | Shimadzu Corp | 光生体測定装置 |
JP3650558B2 (ja) | 1999-11-09 | 2005-05-18 | 株式会社日立製作所 | 反射率測定装置 |
JP3477429B2 (ja) | 2000-05-29 | 2003-12-10 | サンクス株式会社 | 漏液センサ |
US6509919B1 (en) | 2000-09-01 | 2003-01-21 | Eastman Kodak Company | Apparatus adapted to sense a colorant and method for sensing color and detecting a donor mispick condition |
JP2002257837A (ja) | 2000-12-28 | 2002-09-11 | Eiken Chem Co Ltd | 試薬パッドの位置及び厚みを検出することによる尿試料供試用ノズル位置の制御方法 |
RU2001125705A (ru) * | 2001-02-23 | 2004-01-10 | Валерий Николаевич Бурцев (UA) | Устройство для демонстрации информации |
-
2003
- 2003-11-20 WO PCT/JP2003/014863 patent/WO2004051317A1/ja active Application Filing
- 2003-11-20 AU AU2003284613A patent/AU2003284613A1/en not_active Abandoned
- 2003-11-20 EP EP03774116.2A patent/EP1566664B1/en not_active Expired - Lifetime
- 2003-11-20 US US10/537,003 patent/US7382460B2/en not_active Expired - Lifetime
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57151837U (ja) * | 1981-03-18 | 1982-09-24 | ||
JPS6035244A (ja) * | 1983-08-05 | 1985-02-23 | Victor Co Of Japan Ltd | 反射光検出器の製造方法 |
JPH0381582U (ja) * | 1989-12-12 | 1991-08-20 | ||
JPH0543091U (ja) * | 1991-11-13 | 1993-06-11 | 株式会社コパル | 多点スポツト式エリア監視装置 |
JPH0687522A (ja) * | 1992-02-25 | 1994-03-29 | Vens Sa | コンベヤ上の物体を検出する方法および装置と、そのコンベヤ設備 |
JPH06201844A (ja) * | 1992-12-28 | 1994-07-22 | Sony Corp | 位置検出装置 |
JP2000089394A (ja) | 1998-07-13 | 2000-03-31 | Canon Inc | 原稿検知装置及び検知装置 |
JP2000131405A (ja) * | 1998-10-27 | 2000-05-12 | Hitachi Ltd | リチウム電池の残存容量測定方法とその測定装置 |
JP2002055174A (ja) * | 2000-08-09 | 2002-02-20 | Sharp Corp | 光反射型センサ |
JP2002303679A (ja) * | 2001-04-03 | 2002-10-18 | Glory Ltd | 紙葉類に貼着されたテープ体の検出方法及び装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1566664A4 * |
Also Published As
Publication number | Publication date |
---|---|
AU2003284613A1 (en) | 2004-06-23 |
EP1566664A1 (en) | 2005-08-24 |
US20060076523A1 (en) | 2006-04-13 |
EP1566664A4 (en) | 2012-01-18 |
US7382460B2 (en) | 2008-06-03 |
EP1566664B1 (en) | 2014-03-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0866329B1 (en) | Readhead for a photometric diagnostic instrument | |
JP3045629B2 (ja) | 凹凸パターン検出装置 | |
WO2004051317A1 (ja) | 光センサ、ならびに分析装置における検知機構および測光機構 | |
EP0127418A2 (en) | Equipment for the measurement of fluorescence, turbidity, luminescence, or absorption | |
EP0102189A2 (en) | Reflectometer | |
US20070188457A1 (en) | Optical mouse system with illumination guide having a light spreading lens | |
JP2899651B2 (ja) | 光透過型分光計 | |
EP1598658A2 (en) | Sample analyzer | |
JPH11511561A (ja) | 蛍光光度計 | |
US5155628A (en) | Optical transmission spectrometer | |
US20020005953A1 (en) | SPR sensor plate and immune reaction measuring instrument using the same | |
RU2510959C2 (ru) | Устройство для анализа люминесцирующих биологических микрочипов | |
JP2010091441A (ja) | 光量モニタリング装置、および光量モニタリング方法 | |
JP6043916B2 (ja) | 光学測定装置 | |
EP1231461B1 (en) | Optical inspection apparatus | |
JP4148761B2 (ja) | 試験用具の検知機構、およびこの検知機構を備えた分析装置 | |
CN1849499A (zh) | 用于连续测定物质的装置 | |
EP1605249A1 (en) | Device for measuring immunochromatography test piece and light source device | |
JP7205190B2 (ja) | 光学測定器 | |
JP4088142B2 (ja) | 光センサ、試験用具の測光機構、およびこの測光機構を備えた分析装置 | |
JP2007225400A (ja) | 光学検出装置 | |
JP2000186999A (ja) | 光学情報計測装置 | |
TWI721720B (zh) | 光源裝置及光學檢測系統 | |
WO2020084867A1 (ja) | 濃度センサ | |
JP2005181614A (ja) | ライトガイド、多波長光源装置及び分析装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref document number: 2006076523 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20038A42957 Country of ref document: CN Ref document number: 10537003 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003774116 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2003774116 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10537003 Country of ref document: US |