DE102006039073A1 - Device for investigating the spectral and spatial distribution of an electromagnetic radiation emitted from an object comprises radiation-receiving elements made from miniaturized filter elements permeable in the narrow spectral region - Google Patents
Device for investigating the spectral and spatial distribution of an electromagnetic radiation emitted from an object comprises radiation-receiving elements made from miniaturized filter elements permeable in the narrow spectral region Download PDFInfo
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- DE102006039073A1 DE102006039073A1 DE102006039073A DE102006039073A DE102006039073A1 DE 102006039073 A1 DE102006039073 A1 DE 102006039073A1 DE 102006039073 A DE102006039073 A DE 102006039073A DE 102006039073 A DE102006039073 A DE 102006039073A DE 102006039073 A1 DE102006039073 A1 DE 102006039073A1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2803—Investigating the spectrum using photoelectric array detector
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0256—Compact construction
- G01J3/0259—Monolithic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
- G01J3/26—Generating the spectrum; Monochromators using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/51—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters
- G01J3/513—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors using colour filters having fixed filter-detector pairs
-
- 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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- 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
- G01N21/4795—Scattering, i.e. diffuse reflection spatially resolved investigating of object in scattering medium
-
- 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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components 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
- H01L27/144—Devices controlled by radiation
- H01L27/1446—Devices controlled by radiation in a repetitive configuration
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- 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
- H01L31/0216—Coatings
- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02162—Coatings for devices characterised by at least one potential jump barrier or surface barrier for filtering or shielding light, e.g. multicolour filters for photodetectors
- H01L31/02165—Coatings for devices characterised by at least one potential jump barrier or surface barrier for filtering or shielding light, e.g. multicolour filters for photodetectors using interference filters, e.g. multilayer dielectric filters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
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- 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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
- G01N2021/317—Special constructive features
- G01N2021/3177—Use of spatially separated filters in simultaneous way
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/041—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L31/00
- H01L25/042—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L31/00 the devices being arranged next to each other
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Abstract
Description
Die Erfindung betrifft eine Vorrichtung der im Oberbegriff des Anspruchs 1 angegebenen Gattung und deren Anwendung.The The invention relates to a device that in the preamble of claim 1 specified genus and their application.
In der Medizin wird zur nicht-invasiven Diagnostik und Therapiekontrolle zunehmend die sog. Remissionsspektroskopie angewandt. Da die Intensität der von einem Gewebe, der Haut od. dgl. abgegebenen Remissionsstrahlung hierbei in der Regel sowohl vom Ort als auch von der spektralen Verteilung abhängt, werden Sensor- bzw. Detektoreinrichtungen benötigt, die sowohl eine örtliche als auch eine spektrale Auflösung ermöglichen. Die bisher verfügbaren Detektoreinrichtungen sind für diesen Zweck noch nicht optimal.In Medicine becomes non-invasive diagnostics and therapy control increasingly the so-called remission spectroscopy applied. As the intensity of the a tissue, the skin od. Like. Issued remission radiation usually both from the location and from the spectral Distribution depends Sensor or detector devices are required, both a local as well as a spectral resolution enable. The previously available Detector devices are for this purpose is not optimal.
In der Fernsehtechnik sind z. B. CCD-Sensorarrays bekannt, die aus einer Vielzahl von Bildsensoren bzw. Sensorelementen und auf diese aufgelegten Farbfiltern bestehen. Die Farbfilter werden z. B. aus Polymerfolien und in diese eingebrachten, für die Farben Rot, Blau und Grün empfindlichen Filterelementen hergestellt. Für die Remissionsspektroskopie sind derartige Bauelemente wegen der nur drei erfassbaren Spektralbereiche nicht oder nur begrenzt geeignet.In the television technology are z. As CCD sensor array known, the a plurality of image sensors or sensor elements and placed on this Color filters exist. The color filters are z. B. from polymer films and in this, for the colors red, blue and green made of sensitive filter elements. For remission spectroscopy are such components because of only three detectable spectral ranges not suitable or only limited.
Daneben
werden insbesondere in der Tele- und Datenkommunikation optoelektronische
Bauelemente mit Farbfiltern in Form von Fabry-Perot-Filtern verwendet,
denen je ein Fotoelement od. dgl. zugeordnet ist (z. B.
Für die Remissionsspektroskopie in der Medizin werden daher bis heute überwiegend Vorrichtungen der eingangs bezeichneten Gattung benutzt, die als ein Strahlung aufnehmendes Element eine dünne Lichtleitfaser enthalten, deren eines Ende auf ein zu prüfendes Gewebe oder z. B. auf die menschliche Haut aufgesetzt wird und deren anderes Ende zu einem Spektrometer führt, das zur Untersuchung der spektralen Intensitätsverteilung des remittierten Lichts z. B. mit einem Prisma, einem Gitter od. dgl. und einer diesem nachgeschalteten CCD-Kamera versehen ist (z. B. Applied Optics, 1. Juni 1998, Vol. 37, No. 16, S. 3586 bis 3593 oder Applied Optics, 1. Januar 2002, Vol. 41, No. 1, S. 182 bis 192). Eine Ortsauflösung neben der spektralen Auflösung erfordert dabei eine Vielzahl von solchen Lichtleitfasern und zugehörigen Spektrometern oder ein Spektrometer, das dazu eingerichtet ist, eine Vielzahl von Lichtleitfasern nacheinander abzutasten. Beides ist mit viel Aufwand verbunden und daher unerwünscht. Entsprechend aufwändig wäre es, eine einzige Lichtleitfaser vorzusehen und diese über die abzutastenden Bereiche zu bewegen.For remission spectroscopy In medicine, therefore, are mainly devices of the Initially designated genus used as a radiation receiving Element a thin one Optical fiber containing one end of a tissue to be tested or z. B. is placed on the human skin and the other Leading to a spectrometer, that for the investigation of the spectral intensity distribution of the remitted light z. B. od with a prism, a grid. Like. And a downstream of this CCD camera (eg, Applied Optics, June 1, 1998, Vol. No. 16, pp. 3586-3593 or Applied Optics, January 1, 2002, Vol. 41, no. 1, pp. 182 to 192). A spatial resolution in addition to the spectral resolution requires while a plurality of such optical fibers and associated spectrometers or a spectrometer that is set up to a variety be scanned one after the other by optical fibers. Both are with a lot Associated effort and therefore undesirable. It would be correspondingly expensive, one provide only optical fiber and these on the areas to be scanned to move.
Ausgehend von diesem Stand der Technik liegt der Erfindung das technische Problem zugrunde, die Vorrichtung der eingangs bezeichneten Gattung so auszubilden, daß sie gleichzeitig eine Ortsauflösung und eine spektrale Auflösung ermöglicht, ohne daß hierfür ein bewegliches Bauteil, eine Vielzahl von Spektrometern oder ein abstimmbares Filter benötigt wird.outgoing From this prior art, the invention is the technical Problem underlying the device of the type described to train them at the same time a spatial resolution and a spectral resolution allows without that this is a mobile Component, a variety of spectrometers or a tunable filter is needed.
Zur Lösung dieser Aufgabe dienen die kennzeichnenden Merkmale des Anspruchs 1.to solution This object is achieved by the characterizing features of the claim 1.
Durch die Erfindung wird eine Vorrichtung geschaffen, die in einem gemeinsamen Sensor sowohl fotoelektrische Sensorelemente als auch wenigstens vier, vorzugsweise jedoch wesentlich mehr als vier Filterelemente mit unterschiedlichen spektralen Durchlaßeigenschaften in sich vereinigt. Dadurch werden spezielle Spektrometer od. dgl. und/oder bewegbare Teile nicht mehr benötigt. Es genügt vielmehr, den Sensor auf den zu prüfenden Gegenstand, z. B. die menschliche Haut oder ein Gewebe, aufzulegen und die vorhandenen fotoelektrischen Sensorelemente mit elektrischen Mitteln abzufragen. Ein Durchstimmen des Filters ist dazu nicht erforderlich. Dabei wird durch jedes Filterelement sowohl eine spektrale Information als auch eine örtliche Information erhalten. Beim Vorhandensein einer großen Anzahl von Filterelementen, die für jeweils andere Spektralbereiche durchlässig sind, kann außerdem dadurch, daß mehr oder weniger der Filterelemente zu einem die Ortsinformation liefernden Makropixel zusammengefaßt werden, wahlweise die Ortsauflösung oder die spektrale Auflösung vergrößert oder verkleinert werden.By The invention provides a device that is in a common Sensor both photoelectric sensor elements and at least four, but preferably substantially more than four filter elements combined with different spectral transmission characteristics. As a result, special spectrometers or the like and / or movable Parts no longer needed. It is sufficient Rather, the sensor on the object to be tested, for. B. the human skin or tissue, hang up and existing ones to interrogate photoelectric sensor elements by electrical means. Tuning the filter is not required. there Through each filter element, both a spectral information as well as a local one Get information. In the presence of a large number of filter elements used for other spectral regions are permeable, can also that more or less of the filter elements to one providing the location information Macro pixels summarized be, optionally the spatial resolution or the spectral resolution enlarged or reduced become.
Gegenstand der Erfindung ist außerdem die Anwendung der Vorrichtung gemäß den Ansprüchen 25 und 26.The invention also relates to the use of the device according to the claims 25 and 26.
Weitere vorteilhafte Merkmale der Erfindung ergeben sich aus den Unteransprüchen.Further advantageous features of the invention will become apparent from the dependent claims.
Die Erfindung wird nachfolgend in Verbindung mit den beiliegenden Zeichnungen an Ausführungsbeispielen näher erläutert. Es zeigen:The The invention will be described below in conjunction with the accompanying drawings at exemplary embodiments explained in more detail. It demonstrate:
Die
Vorrichtung enthält
z. B. ein scheiben-, platten- oder folienförmiges, z. B. aus Silizium
hergestelltes Substrat
Die
Sensor- und Filterelemente
Ein
wesentlicher Vorteil des Sensor nach
Im
Beispiel nach
Weitere
mögliche
Ausführungsbeispiele
der erfindungsgemäßen Vorrichtung
sind in
Die
Herstellung des Sensors nach
Beim
Ausführungsbeispiel
nach
Während der
in
Anstatt
der aus
Die
Ausbildung der Sensor- und Filterelemente
Wie
Auf
der aus dem Kavitätsmaterial
gebildeten Schicht befindet sich eine den zweiten DBR-Spiegel
Aufgrund
der beschriebenen Ausbildung der Kavität
Bei
dem Substrat
Der
Sensor nach
Die
strahlungsempfindlichen Fotoelemente
Schließlich enthält das z.
B. in CCD- oder CMOS-Bauweise hergestellte Substrat
Wie
Da
das Substrat
Der
Sensor besteht nach
Abweichend
von
Im übrigen können die
DBR-Spiegel
Die
Funktion des beschriebenen Filter- und Sensorarrays ergibt sich
im wesentlichen aus
Anstatt
durch eine Dickenvariation der Kavitätsabschnitte
Die
Herstellung des beschriebenen optoelektronischen Sensors kann auf
verschiedene Weise erfolgen. Dabei wird z. B. so vorgegangen, dass
zunächst
das Design des Filters
Das
Substrat
In
einem weiteren Schritt erfolgt jetzt z. B. eine Deposition des DBR-Spiegels
Auf
die oberste Schicht des DBR-Spiegels
Im
Anschluss daran erfolgt die Strukturierung der aus dem Kavitätsmaterial
bestehenden Schicht z. B. mit Hilfe eines entsprechend strukturierten
Stempels, dessen der Schicht zugewandte, prägende Oberfläche als
Negativform der in der Schicht
Mit
Hilfe der beschriebenen Technik können die Sensoren mit einigen
hundert, für
unterschiedliche Wellenlängen
durchlässigen
Filterelementen versehen werden. Da die Breite eines Filterdips
bei den beispielhaft dargestellten Wellenlängen λ1 bis λ4 nur ca. 1 nm und die Breite
des Stopbandes in
Die Transmissionsbänder der Filterelemente können lückenlos aneinander gereiht werden. Es werden in diesem Fall so viele Filter verwendet, bis der gesamte Spektralbereich abgedeckt ist. Alternativ können die Transmissionsbänder der Filterelemente aber auch überlappend oder mit dazwischen liegenden Lücken spektral verteilt angeordnet werden. Auch Kombinationen dieser drei Fälle sind möglich.The transmission belts the filter elements can gapless be strung together. There will be so many filters in this case used until the entire spectral range is covered. alternative can the transmission bands the filter elements but also overlapping or with gaps in between be arranged spectrally distributed. Also combinations of these three Cases are possible.
Die
Erfindung ist nicht auf die beschriebenen Ausführungsbeispiele beschränkt, die
auf vielfache Weise abgewandelt werden können. Insbesondere die Zahl
der pro Sensor vorhandenen Filterelemente ist weitgehend frei wählbar und
an den gewünschten Wellenlängenbereich
anpassbar, der sich vom UV-Bereich bis in den Mikrowellenbereich
erstrecken kann. Möglich
wäre auch,
einen Sensor entsprechend
Claims (26)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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DE102006039073A DE102006039073A1 (en) | 2006-08-09 | 2006-08-09 | Device for investigating the spectral and spatial distribution of an electromagnetic radiation emitted from an object comprises radiation-receiving elements made from miniaturized filter elements permeable in the narrow spectral region |
US12/376,690 US8629986B2 (en) | 2006-08-09 | 2007-08-09 | Optical filter and method for the production of the same, and device for the examination of electromagnetic radiation |
CN201410394812.9A CN104316987A (en) | 2006-08-09 | 2007-08-09 | Optical filter and method for the production of the same, and device for the examination of electromagnetic radiation |
EP07801588A EP2057446A2 (en) | 2006-08-09 | 2007-08-09 | Optical filter and method for the production of the same, and device for the examination of electromagnetic radiation |
PCT/EP2007/007075 WO2008017490A2 (en) | 2006-08-09 | 2007-08-09 | Optical filter and method for the production of the same, and device for the examination of electromagnetic radiation |
US14/094,804 US9244208B2 (en) | 2006-08-09 | 2013-12-03 | Optical filter and method for the production of the same, and device for the examination of electromagnetic radiation |
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DE102006039073A DE102006039073A1 (en) | 2006-08-09 | 2006-08-09 | Device for investigating the spectral and spatial distribution of an electromagnetic radiation emitted from an object comprises radiation-receiving elements made from miniaturized filter elements permeable in the narrow spectral region |
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DE102006039073A1 true DE102006039073A1 (en) | 2008-02-14 |
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DE102006039073A Withdrawn DE102006039073A1 (en) | 2006-08-09 | 2006-08-09 | Device for investigating the spectral and spatial distribution of an electromagnetic radiation emitted from an object comprises radiation-receiving elements made from miniaturized filter elements permeable in the narrow spectral region |
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DE102009038028A1 (en) * | 2009-08-18 | 2011-02-24 | Carl Zeiss Microlmaging Gmbh | Detector arrangement with increased sensitivity |
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