DE102006060604A1 - Photoelectric sensor device - Google Patents
Photoelectric sensor device Download PDFInfo
- Publication number
- DE102006060604A1 DE102006060604A1 DE102006060604A DE102006060604A DE102006060604A1 DE 102006060604 A1 DE102006060604 A1 DE 102006060604A1 DE 102006060604 A DE102006060604 A DE 102006060604A DE 102006060604 A DE102006060604 A DE 102006060604A DE 102006060604 A1 DE102006060604 A1 DE 102006060604A1
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- Germany
- Prior art keywords
- sensor device
- photoelectric
- liquid crystal
- sensor chip
- light transmission
- 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- Withdrawn
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000010287 polarization Effects 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000006059 cover glass Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
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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
-
- 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
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14625—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
- H01L31/02327—Optical elements or arrangements associated with the device the optical elements being integrated or being directly associated to the device, e.g. back reflectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/50—Control of the SSIS exposure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/50—Control of the SSIS exposure
- H04N25/57—Control of the dynamic range
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3058—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state comprising electrically conductive elements, e.g. wire grids, conductive particles
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
- G02F1/133548—Wire-grid polarisers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136277—Active matrix addressed cells formed on a semiconductor substrate, e.g. of silicon
Abstract
Eine photoelektrische Sensoreinrichtung, umfassend einen Sensorchip mit einer ein- oder zweidimensionalen Anordnung einer Vielzahl von einzelne Bildpunkte bildenden, photoelektrischen Wandlerelementen sowie ein unmittelbar auf dem Sensorchip aufgebrachtes Element mit steuerbarer Lichttransmission zum Steuern der Belichtung einzelner und/oder von Gruppen von Wandlerelemente(n), ist dadurch gekennzeichnet, dass das Element mit steuerbarer Lichttransmission einen ersten und einen zweiten Polarisationsfilter (11, 6) sowie ein zwischen diesen angeordnetes Flüssigkristall-Element (8) umfasst und dass der zwischen den Wandlerelementen und dem Flüssigkristall-Element (8) angeordnete, zweite Polarisationsfilter (6) durch eine auf dem Sensorchip direturierte, elektrisch leitfähige Schicht (5) gebildet ist.A photoelectric sensor device comprising a sensor chip with a one- or two-dimensional arrangement of a plurality of individual image-forming, photoelectric conversion elements and an element directly controllable on the sensor chip with controllable light transmission for controlling the exposure of individual and / or groups of transducer elements (s), is characterized in that the element with controllable light transmission comprises a first and a second polarizing filter (11, 6) and a liquid crystal element (8) arranged between them, and that the second one arranged between the transducer elements and the liquid crystal element (8) Polarization filter (6) by an on the sensor chip direturierte, electrically conductive layer (5) is formed.
Description
Die Erfindung betrifft eine photoelektrische Sensoreinrichtung umfassend einen Sensorchip mit einer ein- oder zweidimensionalen Anordnung einer Vielzahl von einzelne Bildpunkte bildenden, photoelektrischen Wandlerelementen sowie ein unmittelbar auf dem Sensorchip aufgebrachtes Element mit steuerbarer Lichttransmission zum Steuern der Belichtung einzelner und/oder von Gruppen von Wandlerelemente(n).The The invention relates to a photoelectric sensor device comprising a sensor chip with a one- or two-dimensional arrangement a plurality of individual pixels forming, photoelectric Transducer elements and an applied directly on the sensor chip Controllable light transmission element for controlling the exposure individual and / or groups of transducer elements (s).
Photoelektrische Sensoreinrichtungen der hier angesprochenen Art werden beispielsweise im Kraftfahrzeugbereich in Kamerasystemen eingesetzt, welche Bilder einer Umgebung aufnehmen. Aus den aufgenommenen Bildern werden dann beispielsweise mittels Bildanalyse Reaktionen abgeleitet oder aber die aufgenommenen Bildsequenzen abgespeichert. Ein besonders interessantes Anwendungsgebiet für diese Sensorarrays bilden dabei im Bereich der Kraftfahrzeuge Fahrerassistenzsysteme mit unterschiedlichen Aufgaben wie etwa Spurerkennung oder Verkehrszeichenerkennung.Photoelectric Sensor devices of the type discussed here become, for example used in the automotive sector in camera systems, which images an environment. From the pictures taken then become for example, derived by means of image analysis reactions or the recorded image sequences are stored. A particularly interesting Application for These sensor arrays include driver assistance systems in the field of motor vehicles different tasks such as lane detection or traffic sign recognition.
Ein wichtiger Aspekt bei derartigen Systemen ist, dass die von der Kamera aufgenommenen Bilder unter verschiedenen Bedingungen wie Tageslicht, in der Nacht oder Dämmerung oder unter speziellen Wetterbedingungen eine für die Anwendung ausreichende Qualität aufweisen müssen, insbesondere auswertbar sein müssen. Von besonderer Bedeutung sind dabei Maßnahmen, welche die Kamera vor Blendung, Überbelichtung, etc. schützen.One important aspect of such systems is that of the camera taken pictures under different conditions like daylight, at night or dusk or under special weather conditions sufficient for the application quality have to have in particular be evaluated. Of particular importance are measures that the camera before Glare, overexposure, etc. protect.
Darüber hinaus besteht jedoch auch die Anforderung, für die unterschiedlichen Funktionalitäten unterschiedliche Bildbereiche mit teilweise sehr verschiedenen Helligkeitswerten auswerten zu können, so dass es erforderlich ist, die existierenden Sensoreinrichtungen hinsichtlich der erreichbaren Dynamik sowohl zwischen unterschiedlichen Bildern als auch zwischen verschiedenen Bereichen innerhalb eines Bildes zu verbessern.Furthermore However, there is also a requirement for different functionalities Image areas with partly very different brightness values to evaluate, so that it is necessary, the existing sensor devices in terms of achievable dynamics both between different Images as well as between different areas within an image to improve.
Aus
der
Eine praktische Realisierung einer Sensoreinrichtung mit einem direkt auf dem Bildsensor aufgebrachten Element mit steuerbarer Lichttransmission ist in dieser Veröffentlichung jedoch nicht aufgezeigt.A practical realization of a sensor device with a direct on the image sensor applied element with controllable light transmission is in this publication but not shown.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine einfach und kostengünstig zu realisierende technische Ausführung für eine solche Einrichtung anzugeben.Of the The present invention is therefore based on the object, a simple and inexpensive too realizing technical design for one specify such a facility.
Eine Ausführung einer Sensoreinrichtung, die diesen Anforderungen genügt, ist erfindungsgemäß dadurch ermöglicht, dass das Element mit steuerbarer Lichttransmission einen ersten und einen zweiten Polarisationsfilter sowie ein zwischen diesen angeordnetes Flüssigkristall-Element umfasst, und dass der zwischen den Wandlerelementen und dem Flüssigkristall-Element angeordnete, zweite Polarisationsfilter durch eine auf dem Sensorchip direkt aufgebrachte, in Form paralleler Streifen strukturierte, elektrisch leitfähige Schicht gebildet ist.A execution a sensor device that meets these requirements, is according to the invention thereby allows that the element with controllable light transmission a first and a second polarizing filter and an interposed therebetween Liquid crystal element and that between the transducer elements and the liquid crystal element arranged, second polarizing filter by a on the sensor chip directly applied, structured in the form of parallel stripes, electrically conductive Layer is formed.
Aus dem Bereich der Lichtprojektion sind neue Technologien bekannt, die ein wegen seiner Funktion auch als Lichtventil bezeichnetes Element direkt auf einen Silizium-Träger applizieren. Es handelt sich bei diesem Element um ein Flüssigkristall-Display. Bei dieser auch als LCOS (Liquid Crystal On Silicon) bezeichneten Technologie fungiert der Silizium-Chip gleichzeitig als Träger, Steuereinheit und Spiegel für die Projektionseinheit. Eine auf die Oberfläche der Einheit applizierte Polarisationsfolie wird durch die Spiegelung am Silizium zweimal durchlaufen und dient somit sowohl als Eingangs- als auch als Ausgangspolarisator des Lichtventils.Out In the field of light projection, new technologies are known the one because of its function as a light valve designated Apply element directly to a silicon substrate. It deals this element is a liquid crystal display. At this also referred to as LCOS (Liquid Crystal On Silicon) technology At the same time, the silicon chip acts as a carrier, control unit and mirror for the Projection unit. One applied to the surface of the unit Polarization film is reflected twice by the reflection on the silicon traverses and thus serves both as an input and as a Ausgangspolarisator of the light valve.
Die vorliegende Erfindung macht sich die Grundlagen dieser Technologie zunutze. Es ist nämlich bei der erfindungsgemäßen Sensoreinrichtung vorgesehen, den in bekannter CMOS-Technik vorliegenden Siliziumchip, der an seiner Oberfläche eine ein- oder zweidimensionale Anordnung einer Vielzahl von einzelne Bildpunkte bildenden Photodioden aufweist, mit einer in dieser LCOS-Technologie auf das Silizium aufgebrachten Lage an Lichtventilen zu überlagern, so dass die Lichtventile eine an der Photodiodenmatrix ausgerichtete zweite Matrix bilden, deren Elemente einzelne Photodioden oder Photodiodengruppen überdecken.The The present invention lays the foundations of this technology advantage. It is provided in the sensor device according to the invention, the present in known CMOS technology silicon chip, the its surface a one- or two-dimensional arrangement of a plurality of individual Having pixel-forming photodiodes, with one in this LCOS technology to superimpose on the silicon applied layer of light valves, such that the light valves are aligned with the photodiode array form second matrix whose elements cover individual photodiodes or photodiode groups.
Da das Licht bei dem erfindungsgemäßen Aufbau eines Sensorchips, anders als bei den beschriebenen, typischen LCOS Anwendungen, nur einmal durch das Flüssigkristall-Element tritt, muss sich auf beiden Seiten dieses Elements ein Polarisationsfilter befinden. Während dabei der erste, äußere Polarisationsfilter eine normale Polarisationsfolie sein kann, muss sich der zweite, innere Polarisationsfilter fertigungstechnisch in die Herstellungsprozesse des Siliziumchips einfügen lassen.There the light in the structure according to the invention a sensor chip, unlike the described typical LCOS Applications, only once through the liquid crystal element occurs, must be a polarizing filter on both sides of this element are located. While while the first, outer polarizing filter may be a normal polarizing film, the second, internal polarization filter manufacturing technology in the manufacturing processes of the silicon chip to let.
Dies ist bei der hier vorgeschlagenen Ausführung des zweiten Polarisationsfilters der Fall. Die Applikation der elektrisch leitfähigen Schicht, bei der es sich vorzugsweise um eine Metallschicht oder eine Halbleiterschicht handelt, ist ebenso wie ihre gleichzeitige oder nachfolgende Strukturierung mit dem Herstellungsprozess des Halbleiterchips voll kompatibel und somit vollständig in einen üblichen Fertigungsvorgang der Halbleitertechnik integrierbar.This is in the case proposed here guide the second polarizing filter of the case. The application of the electrically conductive layer, which is preferably a metal layer or a semiconductor layer, as well as its simultaneous or subsequent structuring with the manufacturing process of the semiconductor chip is fully compatible and thus completely integrated into a conventional manufacturing process of semiconductor technology.
Der solchermaßen aufgebaute Polarisator wirkt als Hertzsches Gitter, welches nur diejenige Polarisationskomponente des auftreffenden Lichts passieren lässt, die senkrecht zu der Längserstreckung der Streifenstruktur ausgerichtet ist.Of the thus constructed polarizer acts as a hertzian grid, which only pass that polarization component of the incident light leaves, perpendicular to the longitudinal extent of the Strip structure is aligned.
Nachfolgend ist die Erfindung anhand eines Ausführungsbeispiels unter Bezugnahme auf die beigefügte Zeichnung erläutert.following the invention with reference to an embodiment with reference on the attached Drawing explained.
Dabei zeigen:there demonstrate:
Wie
in der Zeichnung insbesondere in
Der
zweite Polarisationsfilter
Die
Ansteuerungslogik der Lichtventile, also der Elemente mit steuerbarer
Lichttransmission, ist mit auf dem Siliziumsubstrat
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006060604A DE102006060604A1 (en) | 2006-12-21 | 2006-12-21 | Photoelectric sensor device |
PCT/EP2007/064207 WO2008077857A1 (en) | 2006-12-21 | 2007-12-19 | Photoelectric sensor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006060604A DE102006060604A1 (en) | 2006-12-21 | 2006-12-21 | Photoelectric sensor device |
Publications (1)
Publication Number | Publication Date |
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DE102006060604A1 true DE102006060604A1 (en) | 2008-06-26 |
Family
ID=39099900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006060604A Withdrawn DE102006060604A1 (en) | 2006-12-21 | 2006-12-21 | Photoelectric sensor device |
Country Status (2)
Country | Link |
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DE (1) | DE102006060604A1 (en) |
WO (1) | WO2008077857A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3721751A1 (en) * | 1987-07-01 | 1989-01-12 | Eps Elektronik | Optoelectronic filter preferably for video cameras |
DE3913758A1 (en) * | 1988-04-22 | 1989-12-21 | Univ Chicago | OPTICAL IMAGE PROCESSING |
DE4106019A1 (en) * | 1990-03-02 | 1991-10-02 | Neta Holland | Automatic windscreen-dimming control system for vehicle - uses liquid crystal screen-cavity with light sensors at screen edge |
DE4305807A1 (en) * | 1993-02-25 | 1994-10-13 | Thomson Brandt Gmbh | Camera with a controllable diaphragm |
DE4420637A1 (en) * | 1994-06-14 | 1995-12-21 | Bertram Dr Rapp | Optical imaging apparatus for photographic or video camera |
DE102004061334A1 (en) * | 2004-12-20 | 2006-07-06 | Robert Bosch Gmbh | Device and method for influencing the incident on an image sensor light |
US7106377B2 (en) * | 2001-07-25 | 2006-09-12 | Hewlett-Packard Development Company, L.P. | Image capturing device capable of single pixel exposure duration control |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2325056A (en) * | 1997-05-09 | 1998-11-11 | Sharp Kk | Polarisation independent optical phase modulator |
GB0403933D0 (en) * | 2004-02-21 | 2004-03-24 | Koninkl Philips Electronics Nv | Optical path length adjuster |
JP4175298B2 (en) * | 2004-07-07 | 2008-11-05 | セイコーエプソン株式会社 | Color filter, method for manufacturing the same, electro-optical device, and electronic apparatus |
-
2006
- 2006-12-21 DE DE102006060604A patent/DE102006060604A1/en not_active Withdrawn
-
2007
- 2007-12-19 WO PCT/EP2007/064207 patent/WO2008077857A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3721751A1 (en) * | 1987-07-01 | 1989-01-12 | Eps Elektronik | Optoelectronic filter preferably for video cameras |
DE3913758A1 (en) * | 1988-04-22 | 1989-12-21 | Univ Chicago | OPTICAL IMAGE PROCESSING |
DE4106019A1 (en) * | 1990-03-02 | 1991-10-02 | Neta Holland | Automatic windscreen-dimming control system for vehicle - uses liquid crystal screen-cavity with light sensors at screen edge |
DE4305807A1 (en) * | 1993-02-25 | 1994-10-13 | Thomson Brandt Gmbh | Camera with a controllable diaphragm |
DE4420637A1 (en) * | 1994-06-14 | 1995-12-21 | Bertram Dr Rapp | Optical imaging apparatus for photographic or video camera |
US7106377B2 (en) * | 2001-07-25 | 2006-09-12 | Hewlett-Packard Development Company, L.P. | Image capturing device capable of single pixel exposure duration control |
DE102004061334A1 (en) * | 2004-12-20 | 2006-07-06 | Robert Bosch Gmbh | Device and method for influencing the incident on an image sensor light |
Also Published As
Publication number | Publication date |
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WO2008077857A1 (en) | 2008-07-03 |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20131224 |