EP2419696A2 - Für die anwendung an lichtvorhängen geeigneter optischer detektor - Google Patents
Für die anwendung an lichtvorhängen geeigneter optischer detektorInfo
- Publication number
- EP2419696A2 EP2419696A2 EP10724989A EP10724989A EP2419696A2 EP 2419696 A2 EP2419696 A2 EP 2419696A2 EP 10724989 A EP10724989 A EP 10724989A EP 10724989 A EP10724989 A EP 10724989A EP 2419696 A2 EP2419696 A2 EP 2419696A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- detector
- layer
- tapping points
- detector according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2433—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring outlines by shadow casting
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0428—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0232—Optical elements or arrangements associated with the device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0232—Optical elements or arrangements associated with the device
- H01L31/02322—Optical elements or arrangements associated with the device comprising luminescent members, e.g. fluorescent sheets upon the device
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/10—Transparent electrodes, e.g. using graphene
- H10K2102/101—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/20—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising organic-organic junctions, e.g. donor-acceptor junctions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/451—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising a metal-semiconductor-metal [m-s-m] structure
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
- H10K30/81—Electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K39/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic radiation-sensitive element covered by group H10K30/00
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/60—Forming conductive regions or layers, e.g. electrodes
- H10K71/611—Forming conductive regions or layers, e.g. electrodes using printing deposition, e.g. ink jet printing
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
Definitions
- Light curtains are usually formed by juxtaposition of parallel aligned light barriers. Occasionally, light sources are used in which the cross-sectional area of the emitted light beam has approximately the shape of a straight line. By arranging this line parallel to the alignment of the row formed by juxtaposition of light sensors, the lingering can be found with a smaller number of light sources than with light sensors.
- US 2007176165 A1 shows a construction method for an organic light-sensitive position sensor based on an incident light spot.
- the flat detector consists of several layers.
- a substrate made of glass or a flexible organic material extends a first, planar electrode which has a high ohmic resistance.
- a layer of organic p ' hotoactive materials within which one donor and one acceptor layer abut each other.
- a flat electrode which, however, has a low ohmic resistance.
- At the edge of the photoactive materials with two to 8 point or line-like, spaced apart terminal electrodes are provided.
- a current flows through the individual connection electrodes. From the size of the current in the individual terminal electrodes can be closed to their proximity to the point of impact of the light beam and thus the point of impact of the light beam by .A kind of triangulation can be calculated.
- EP 0 361 374 A2 it is proposed to form a light detector in that fluorescence radiation, which is formed in a light-transmissive plastic doped with an organic fluorescent dye in the event of external light, is transmitted to a photosensitive semiconductor element by means of optical waveguides which are likewise doped with a fluorescent dye becomes.
- fluorescence radiation which is formed in a light-transmissive plastic doped with an organic fluorescent dye in the event of external light
- optical waveguides which are likewise doped with a fluorescent dye becomes.
- fluorescent-doped strips of a transparent material such as glass or clear plastic are unilaterally connected to a photodiode and arranged side by side, so that they form a larger detector surface, within which can be measured individually for partial areas, whether they are hit by light be or not.
- a transparent material such as glass or clear plastic
- DE 10 2005 040 351 B4 describes a detector in which a fluorescent material layer which hardly or not at all absorbs in the visible spectral region is applied to a flat, light-conducting substrate such as a glass pane which converts irradiated UV light into light which is present in the substrate is also conducted to its edge areas. At the edge regions of the substrate are optically coupled with this radiation sensors mounted, which translate the light output arriving from the substrate into an electrical signal.
- the detector can be installed unobtrusively on already existing glass surfaces, such as glass partitions, glass doors, picture glazing, etc.
- the detector In conjunction with an unobtrusively mounted UV light source, which is spaced apart and is illuminated on the detector, the detector can be used as a very inconspicuous access monitoring system for the space lying between the light source and the detector surface. As soon as a person enters the area between the detector and the light source and at least shades off a part of the detector surface, the incoming light power is reduced at least at some of the peripheral radiation sensors and, accordingly, an altered electrical signal is forwarded to a higher-level control.
- the object of the invention is to propose a design for an optical detector for a light sensor, which should have advantages over the known designs with respect to the following features:
- the detector is proposed to form a flexible layer structure of an organic material, wherein light arriving in a layer causes an optical or electrical signal, which is conducted in a loss-rich manner along the layer structure.
- a plurality of spaced apart tapping points for the signals is attached on one side of the layer structure.
- a layer of the detector is enriched with luminescent particles.
- Light that is scattered into this layer is converted to longer wavelength light by luminescence and passed under reflection at the interfaces of the layer within the layer to "classical" photodiodes, producing a measurable electrical signal at these photodiodes of the light arriving at a photodiode decreases with the distance from the distance to the point at which a light pulse came from outside into the layer and caused luminescence, can be calculated by comparing the signal amplitudes of a plurality of spaced photodiodes to the impact point (or impact area) of the incident light from the outside are recalculated.
- a layer is formed by an organic photoactive material, this layer being arranged between two planar, electrically connected electrodes, wherein at least one electrode has a relatively high ohmic resistance within its circuit. If light is incident on a position of the photoactive layer, the two sides become at this point the photoactive layer arranged, flat electrodes connected to each other. The current through the less conductive electrode is measured at several spaced connection points. From the relative size of the measured at the different connection points different currents to each other is calculated back to the position of the point of light incidence.
- connection lines are printed on individual tapping points of electrical signals on a layer of the layer structure.
- the process is easy to automate.
- the current strengths occurring in the system are so low that the thus easily producible, rather small cable cross-sections are easily enough.
- the detectors according to the invention have a front and a rear side, the front side being that from which the light from the light source belonging to the light curtain is incident as intended.
- the connection lines are normally placed behind the detector's layer relevant for the measurement.
- connection cables are glued to the layer structure.
- connection cables themselves can be part of a multi-part adhesive tape.
- this has the shape of an elongate strip, wherein two spaced-apart rows of tapping points extend along the longitudinal direction of this strip.
- the height of the object moving through the surface can be determined by mathematical methods. For the cases in which light curtains and / or detector surfaces are not aligned vertically, it is better to generalize instead of "height of the object” the "normal dimension of the object” to the plane of the detector surfaces and to the surface to be monitored.
- such double light curtains are arranged on several walls of a room horizontally, typically near the floor. This allows the movement of objects on the floor throughout the room to be monitored. Under skillful application of evaluation logic and provided that the objects that can be located in space, are somewhat limited from the outset, it can also be automatically detected to which class a moving object belongs.
- classes could be, for example: people, furniture, transport equipment, luggage, various domestic and / or farm animals.
- a detector can be easily realized not only as a long strip, but also as a larger area, the bottom surface of a room, a corridor or a storage area can be formed as a detector surface in a warehouse and illuminated from further above in an advantageous application be.
- the movement of an object can be well detected on a surface, but it can also be well detected the occupancy of storage areas and the knowledge of occupied areas can be well used to control automatic transport systems so that they do not collide with objects, but if necessary find objects quickly and eg can take specific.
- Fig. 1 shows an exemplary, designed as a strip detector according to the invention with a view towards the plane of the electrical connection lines.
- Fig. 2 shows a possible embodiment of the strip shown in Fig. 1 in cross-sectional view. (For reasons of visibility, and also in FIG. 3, the layer thicknesses are shown disproportionately enlarged and sectional areas are not hatched as usual.)
- Fig. 3 shows a further possible embodiment of the strip shown in Fig. 1 in cross-sectional view.
- FIG. 4 shows an application situation of detectors according to the invention designed as strips on a light curtain.
- the viewing direction is normal to the monitored by the light curtain level.
- Fig. 5 shows the conditions of Fig. 4 in the presence of an object which casts a shadow.
- FIG. 6 shows, from a horizontal viewing direction, an application situation for a detector according to the invention for monitoring the occupancy state of a floor surface.
- two rows of tapping points 2, 24 are arranged, against which electrical signals, the sizes of which are determined by incident light on the detector surface.
- connection line 3 is connected to a tapping point 2, 24 and extends from this in the longitudinal direction of the detector up to connection points 23 with lines which lead away from the detector.
- connection points 23 with lines which lead away from the detector.
- the circuit structure shown in Fig. 1 can be produced well.
- a handy, easy-to-assemble strip is formed, away from which only at one end of wires or cables.
- the back of the strip may be provided with an adhesive layer, which may be covered with a peelable protective film at the time of installation.
- the line structure shown in FIG. 1 is free of intersections.
- intersections and local feedthroughs can be used to create intersections of lines. Then you can reduce more with the same number of tapping the width of the strip and you can lead from each tapping point 2, 24 from both ends of the strip-shaped detector a connecting line 3 out and end in a junction 23 to let.
- the detector strip formed in this way can be divided into two shorter but otherwise full detector strips simply by cutting apart.
- Fig. 2 shows in cross-sectional view an exemplary layer structure of a detector strip 10, using luminescence waveguide.
- a thinner layer 7 is laminated from a homogeneous mixture of the plastic polyvinyl alcohol and the dye rhodamine 6G.
- the PET layers 6 form an optical waveguide with the layer 7 therebetween.
- the layer 7 is photoluminescent.
- "Standard" small-area silicon photodiodes 2 are arranged at a grid spacing from one another and have a cross-sectional area of, for example, 2x2 mm 2. They form the actual photoelectric sensors 2.
- the photodiodes 2 are on the side of the PET layers 6 facing away from the irradiation direction attached to the local PET layer so that they couple out light from the PET layer and coupled to its pn junction.
- the signals of the photodiodes 2 are via the connecting lines 3 to the connection points 23 (Fig led to leading other lines.
- the layer 7 When a light beam 4 with a suitable spectrum strikes the layer 7, it triggers luminescence in the integrated particles.
- the resulting, longer-wave light 5 is coupled to a large extent in the waveguide formed by the layers 6 and 7.
- the light 5 in the waveguide mode attenuates by the distribution and attenuation in the waveguide.
- a different intensity of the light in the waveguide mode is measured on the photoelectric sensors 2, depending on how far the point of impact of the luminescence-generating light 4 is removed from the photoelectric sensor. From the size ratios of the signals at the different tapping points, the position of the impact point can be calculated.
- the absolute size of the individual signals is insignificant, only their size ratio is important to each other.
- the individual layers 6, 7, 8, 9 of the detector strip extend without interruption to a plurality of photoelectric sensors. It is therefore not necessary to divide these layers into individual sub-areas, which are each assigned to only one photoelectric sensor 2. By using two rows of photoelectric sensors 2 instead of just one row, it can be seen in which direction an object traverses a light curtain operating using the detector 10.
- the layer 8 is an intermediate layer between the connecting lines 3 and the waveguide 6. It should have significantly lower refractive index than the layer 6 so that no light of the waveguide is coupled out by them.
- the layer 9 is an outer protective layer over the connecting lines 3 and the photoelectric sensors 2. It may well be useful to provide a protective layer transparent to the relevant spectral range over the waveguide 6 on the opposite side of the layer structure.
- FIG. 3 shows a cross-sectional view of a further exemplary layer structure of a detector strip 20.
- a transparent or semi-transparent planar electrode 12 is arranged which "conducts poorly", ie from an electrical
- this "poorly conductive electrode” may be a very thin metal layer, a transparent conductive oxide (TCO), a conductive polymer, or it may be a carbon nanotube network.
- TCO transparent conductive oxide
- the layer thickness of this electrode is dimensioned so that its sheet resistance causes a significant voltage drop in the respective circuit when current flows. In a distance grid to each other form some tapping points 24, so local terminal electrodes, the compounds of this poorly conductive electrode 12 with an external circuit.
- the layer subsequently connected to the "poorly conductive electrode” 12 is a photoactive organic semiconductor layer 11.
- This layer may be a photoconductor or a photovoltaically active element, that is to say that upon absorption of light its electrical resistance may or may not collapse
- a current may flow when an external voltage is applied
- a current may flow by closing the circuit via an external loop.
- Conductively connected thereto on the second side of the photoactive organic semiconductor layer 11 is a planar electrode 13 which, in comparison with the other components of the circuit, ideally has a very low ohmic resistance. It can be formed by a metal layer, a conductive polymer, a conductive oxide or by a carbon nanotube network.
- the electrode 13 is made of the same material as the electrode 12, it should have substantially greater thickness than the electrode 12.
- the conductivity of the electrode 13 can be supported by adjoining, conductively connected wires or foils made of a highly electrically conductive metal.
- the elec- trode 13 via two lines 17, which extend over the length of the detector 20 and abut with its lateral surface on the electrode 13, connectable to an external circuit.
- the individual layers 11, 12, 13, 14, 15, 16 of the detector strip extend without interruption to a plurality of tapping points 24. It is therefore not necessary here to divide these layers into individual sub-areas, which are each associated with only one tapping point 24 ,
- the layer 14 is an electrically insulating intermediate layer between the connecting lines 3 and the electrode 13.
- the layer 15 is an outer protective layer over the connecting lines 3 and the tapping points 24.
- Fig. 4 illustrates an advantageous application of detectors according to the invention.
- a strip-shaped detector 10, 20 is attached on opposite mutually parallel edges of a surface 19 to be monitored for passage.
- a plurality of light sources 18 are mounted, which emit from a discharge slit a light beam with a line-shaped cross-sectional area, wherein the line lies in the surface 19 to be monitored and extends with distance to the light source 18. 4, the limits of the illumination range of the individual light sources 18 are shown by dotted lines. If a non-transparent object is located in the surface 19, it shadows light sources 18 against the detector arranged at the opposite surface edge.
- the electrical signal arriving at a tapping point can be broken down into individual partial signals with the frequency as a selection criterion, and the individual partial signals can be unambiguously assigned to individual light sources 18. It would also be possible to use different spectral ranges for different light sources. A simple possibility is also to assign the individual light sources different subintervals within a common time interval of all the light sources, in which only they are allowed to radiate.
- a surface 19 is suitable for areas 19 to be monitored of any spatial position.
- these surfaces are vertically aligned, e.g. they are gateways.
- a surface 19 it is also possible as a surface 19 to assume a horizontal surface, for example, a surface just above the bottom surface of a room. Then, with this arrangement, the position or movement of objects in a room can be detected.
- Fig. 5 serves to illustrate the principles of an algorithm which results in the determination of size, shape and location of a shadowing object.
- Fig. 5 shows the arrangement 4 supplemented by a shading object 26, which lies in the surface 19.
- the hatched highlighted longitudinal areas 25 on the detectors 10, 20 are those at which at least one light source 18 is shadowed by the object 26.
- a triangular area is bounded in each case, which spans the shading object 26. From the knowledge of the location of a light source and an associated area 25 alone, it can only be stated that the shading object must lie entirely within the triangular area in question and must touch the two sides of the triangle which originate from the light source.
- the shading object 26 must then lie within the common sectional area of all triangular surfaces emanating from the individual light sources 18. If there are multiple shadowing objects, a larger number of shadowed areas 25 will generally be generated than there are light sources 18.
- the shaded longitudinal regions are detected by determining that an otherwise clearly present signal is absent or only very weakly present at these longitudinal regions.
- An interesting and valuable application for the detectors according to the invention is to arrange a light curtain substantially parallel to a display surface on that side in front of a display surface from which the display surface is viewed.
- a plurality of light sources arranged at a distance from each other and distinguishable from one another in the detection result, it can thus be recognized on which surface part of the display surface an object is brought to the display surface.
- a touchscreen has been realized. Due to the simple, cost-effective and robust realizability of such a light curtain, it is advisable to attach it not only to screens but also to other (passive) display surfaces such as display windows, billboards, display panels, etc.
- an elongated object such as a pointer, an arm or a finger
- the detector 30 according to the invention is not designed as a strip, but as in two dimensions larger area. It is spread out on the floor 21 of a room, hallway or storage area in a warehouse and protected from mechanical damage by a cover layer 22, which may be formed by a ceramic, glass, a transparent plastic or even only by a grid. At a distance above the cover layer 22, light sources 18 are arranged. Objects which move on the cover layer 22 or are deposited on it, thus well automatically detected. The detection results can be used not only for the purpose of securing areas or for the collection of inventories, but also for the control of automatic transport systems, so that on the one hand not collide with objects unintentionally but on the other hand can quickly find and target required objects.
- Retroreflektoren be designed as reflectors so which light predominantly in approaching exactly that direction back from which it arrived.
- the problem that ambient light must not distort the result is taken into account by either the spectral range of the light which the detectors 10, 20, 30 perceive and in which the light sources 18 operate differently than that the incoming light from the environment, or the radiation intensity of the light sources 18 is frequency-coded and this frequency is filtered out by means of telecommunications from the signals supplied by the tapping points 2, 24, or the light of the light sources 18 in a very narrow spectral range, a significantly higher spectral power density has, as it otherwise occurs and the detectors 10, 20, 30 firstly as precisely as possible to select this spectral range and allowed in the case of the signals detected only those as characteristic of the light sources whose strength is above a certain threshold level.
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Human Computer Interaction (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT5862009 | 2009-04-16 | ||
AT0101509A AT508135B1 (de) | 2009-04-16 | 2009-06-30 | Flächiger, für die anwendung an lichtvorhängen geeigneter optischer detektor |
PCT/AT2010/000108 WO2010118449A2 (de) | 2009-04-16 | 2010-04-15 | Für die anwendung an lichtvorhängen geeigneter optischer detektor |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2419696A2 true EP2419696A2 (de) | 2012-02-22 |
Family
ID=42734593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10724989A Withdrawn EP2419696A2 (de) | 2009-04-16 | 2010-04-15 | Für die anwendung an lichtvorhängen geeigneter optischer detektor |
Country Status (10)
Country | Link |
---|---|
US (1) | US8742312B2 (de) |
EP (1) | EP2419696A2 (de) |
JP (1) | JP5545579B2 (de) |
KR (1) | KR101414325B1 (de) |
CN (1) | CN102395858B (de) |
AT (1) | AT508135B1 (de) |
BR (1) | BRPI1006247A2 (de) |
CA (1) | CA2758742A1 (de) |
IL (1) | IL215703A0 (de) |
WO (1) | WO2010118449A2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7669134B1 (en) * | 2003-05-02 | 2010-02-23 | Apple Inc. | Method and apparatus for displaying information during an instant messaging session |
ES2384766B1 (es) * | 2010-12-10 | 2013-05-22 | Fundación Imdea Nanociencia | Fotodetector sensible a la posición, procedimiento de obtención del mismo y procedimiento de medida de la respuesta del fotodetector. |
EP2676102B1 (de) * | 2011-02-15 | 2016-04-20 | Basf Se | Detektor zur optischen erfassung mindestens eines objekts |
AT510692B1 (de) | 2011-03-04 | 2012-06-15 | Isiqiri Interface Tech Gmbh | Lichtvorhang sowie eine darauf basierende eingabevorrichtung für eine datenverarbeitungsanlage |
AT510605B1 (de) | 2011-05-31 | 2012-05-15 | Jerman Thomas | Vorrichtung und verfahren zur optischen messung zumindest einer dimension eines objektes mittels punktförmiger, divergenter lichtquellen |
AT511200B1 (de) * | 2011-10-20 | 2012-10-15 | Isiqiri Interface Tech Gmbh | Echtzeitmessung von relativen positionsdaten und/oder von geometrischen massen eines bewegten körpers unter verwendung optischer messmittel |
AT512461B1 (de) * | 2012-02-10 | 2018-02-15 | Isiqiri Interface Tech Gmbh | Vorrichtung für die eingabe von informationen an eine datenverarbeitungsanlage |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5759291A (en) * | 1995-06-28 | 1998-06-02 | Canon Kabushiki Kaisha | Photovoltaic cell and method of making the same |
Family Cites Families (17)
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DE3413372A1 (de) * | 1984-04-10 | 1985-10-17 | Ruhrmann, Wolfgang, Dr., 7000 Stuttgart | Flaechendetektor, insbesondere zielscheibe |
DE3441498A1 (de) | 1984-11-09 | 1986-05-15 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren und anordnung zur erfassung der position von lichtstrahlen |
JPS6293725A (ja) * | 1985-10-18 | 1987-04-30 | Sharp Corp | 光センサ方式の入力検出装置 |
JPS63269002A (ja) * | 1987-04-27 | 1988-11-07 | Victor Co Of Japan Ltd | 物体の位置検出装置 |
DE3832803A1 (de) | 1988-09-28 | 1990-03-29 | Hoechst Ag | Lichtdetektor |
JPH04352692A (ja) * | 1991-05-30 | 1992-12-07 | Tokyo Electric Co Ltd | 荷物送受装置 |
US5635724A (en) * | 1995-06-07 | 1997-06-03 | Intecolor | Method and apparatus for detecting the location of an object on a surface |
US20020180344A1 (en) * | 2001-05-31 | 2002-12-05 | Lichtfuss Hans A. | Flexible electronic device |
US6995445B2 (en) | 2003-03-14 | 2006-02-07 | The Trustees Of Princeton University | Thin film organic position sensitive detectors |
US7465914B2 (en) * | 2003-09-12 | 2008-12-16 | Flatfrog Laboratories Ab | System and method of determining a position of a radiation scattering/reflecting element |
WO2005029172A2 (en) * | 2003-09-22 | 2005-03-31 | Koninklijke Philips Electronics N.V. | Touch input screen using a light guide |
US7729515B2 (en) * | 2006-03-08 | 2010-06-01 | Electronic Scripting Products, Inc. | Optical navigation apparatus using fixed beacons and a centroid sensing device |
DE102005040351B4 (de) | 2005-08-25 | 2007-05-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Strahlungsmodule, diese enthaltende Anordnungen sowie Verfahren zur Detektion, Kontrolle und Überwachung |
JP2008197266A (ja) * | 2007-02-09 | 2008-08-28 | Sharp Corp | 再生装置、再生システム、再生方法及びコンピュータプログラム |
JPWO2008146672A1 (ja) * | 2007-05-23 | 2010-08-19 | 三菱電機株式会社 | エスカレータ用照明兼搭乗者転倒検知システム、エスカレータ用照明兼省エネルギー向け搭乗者有無検知システム及びエスカレータ用照明兼搭乗者利用状況検知システム |
CN101234725A (zh) * | 2008-01-29 | 2008-08-06 | 宁波微科光电有限公司 | 一种红外线三维探测电梯光幕的系统和方法 |
WO2010078609A1 (de) * | 2009-01-07 | 2010-07-15 | Isiqiri Interface Technologies Gmbh | Detektorfläche |
-
2009
- 2009-06-30 AT AT0101509A patent/AT508135B1/de not_active IP Right Cessation
-
2010
- 2010-04-15 CA CA2758742A patent/CA2758742A1/en not_active Abandoned
- 2010-04-15 US US13/264,703 patent/US8742312B2/en not_active Expired - Fee Related
- 2010-04-15 EP EP10724989A patent/EP2419696A2/de not_active Withdrawn
- 2010-04-15 WO PCT/AT2010/000108 patent/WO2010118449A2/de active Application Filing
- 2010-04-15 KR KR1020117027096A patent/KR101414325B1/ko active IP Right Grant
- 2010-04-15 CN CN201080016653.9A patent/CN102395858B/zh not_active Expired - Fee Related
- 2010-04-15 BR BRPI1006247A patent/BRPI1006247A2/pt not_active IP Right Cessation
- 2010-04-15 JP JP2012504992A patent/JP5545579B2/ja not_active Expired - Fee Related
-
2011
- 2011-10-11 IL IL215703A patent/IL215703A0/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5759291A (en) * | 1995-06-28 | 1998-06-02 | Canon Kabushiki Kaisha | Photovoltaic cell and method of making the same |
Also Published As
Publication number | Publication date |
---|---|
JP5545579B2 (ja) | 2014-07-09 |
BRPI1006247A2 (pt) | 2019-09-24 |
KR20120013382A (ko) | 2012-02-14 |
IL215703A0 (en) | 2012-01-31 |
WO2010118449A2 (de) | 2010-10-21 |
AT508135B1 (de) | 2010-11-15 |
WO2010118449A3 (de) | 2010-12-16 |
CA2758742A1 (en) | 2010-10-21 |
AT508135A4 (de) | 2010-11-15 |
CN102395858B (zh) | 2014-09-10 |
CN102395858A (zh) | 2012-03-28 |
US8742312B2 (en) | 2014-06-03 |
US20120038924A1 (en) | 2012-02-16 |
JP2012524239A (ja) | 2012-10-11 |
KR101414325B1 (ko) | 2014-07-02 |
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