EP1706992A1 - Dispositif de detection optique a dispositif optique integre au moins partiellement dans le logement de l'appareil - Google Patents

Dispositif de detection optique a dispositif optique integre au moins partiellement dans le logement de l'appareil

Info

Publication number
EP1706992A1
EP1706992A1 EP04798201A EP04798201A EP1706992A1 EP 1706992 A1 EP1706992 A1 EP 1706992A1 EP 04798201 A EP04798201 A EP 04798201A EP 04798201 A EP04798201 A EP 04798201A EP 1706992 A1 EP1706992 A1 EP 1706992A1
Authority
EP
European Patent Office
Prior art keywords
housing
optical
optics
sensor device
range
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Withdrawn
Application number
EP04798201A
Other languages
German (de)
English (en)
Inventor
Hans-Dieter Bothe
Heiko Freienstein
Steffen Abraham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1706992A1 publication Critical patent/EP1706992A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/04—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only
    • G02B9/06—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only two + components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof

Definitions

  • Optical sensor device with at least partially integrated optics in the device housing
  • the invention is based on an ontically functional unit, containing an optical furitechnisch element working with optics and a housing enclosing it.
  • Such units are known, for example, in the form of an optical sensor device with a sensor surface and optics from the field of motor vehicle technology.
  • a sensor device is referred to herein as optical if it detects electromagnetic radiation from a frequency section of the visible (VIS) and / or the near infrared (NIR) spectral range.
  • the wavelengths of the radiation are between 400 and 1000 nm.
  • luminaires some of them
  • Optical sensor devices are used in various fields of technology. Optical sensor devices are used more and more frequently, particularly in motor vehicles. For example, they are used in environmental detection or interior sensing of a motor vehicle.
  • optical sensor device An important component of an optical sensor device is its optics as its “eye”.
  • the radiation enters through it and is refracted or focused according to the desired imaging conditions.
  • the optics essentially consist of or consist of one several lenses. In most currently known optical sensor devices, the
  • Optics a self-contained part that is attached in or in front of the housing of the sensor device. Corresponding fastening devices on the housing, such as threaded sockets, are necessary for holding the optics.
  • the production of the individual parts of the optics and their connection to the housing of the sensor device causes additional effort and costs.
  • the optics usually protrude outwards and are therefore striking from the outside for the viewer. Edges and shoulders in the device housing result from the openings required for the optics. Dirt accumulates at these locations, which is not easy to remove at these locations.
  • sensor devices are also known in which the optics do not protrude outwards, but are located behind a pane, protected from external influences.
  • AI disclosed sensor device The optics or parts thereof are integral parts of the windshield.
  • the housing is located directly behind the windshield.
  • this special design of the windshield with integrated Luisen causes high costs, and the attachment of the sensor housing to the flat pane is problematic.
  • At least one object-side optical lens, as a separate individual part, and its fastening arrangement are saved.
  • a lens applies to the The present invention as optical if it acts as lenses for radiation from the VIS and / or NTR range.
  • the housing surface on the object side according to the invention can be cleaned well and offers adequate protection against contamination. A disturbing protrusion of the optics is avoided. An additional lens in front of the lens, which deteriorates the optical quality, is unnecessary.
  • the sensor device is set up for use in a motor vehicle for interior monitoring.
  • the optical sensor devices according to the invention can be installed simply and inexpensively, in a manner which will not later be irritating to the driver.
  • the part of the optics integrated in the housing acting as an optical lens or the entire optics integrated in the housing is transparent for a frequency section of the electromagnetic radiation from the NTR range which is predetermined according to position and width and for that
  • VtS area opaque. Images of objects illuminated with radiation from the NTR area are very similar to those from the VIS area. The absorption and reflection behavior shows no serious differences. This means that a room can be video-monitored with NTR radiation alone. Because the optics are opaque to the human eye, they can be sensed without the person being observed recognizing them and feeling them as annoying. From the outside, the person perceives a uniform, opaque housing surface.
  • the housing part which at least partially contains the optics is produced using injection molding technology. This is a particularly simple and inexpensive way, which in particular further reduces the effort and costs for the production and integration of the optics.
  • the structural units are so-called “sub-units”. This saves twice the manufacturing costs of the interior trim and the object-side housing part of the sensor device.
  • the optics of the device according to the invention are integrated into the interior trim without being prominent and are integrated by the occupants of the vehicle This configuration advantageously enables inexpensive and unobtrusive sensing of the motor vehicle interior, for example for controlling restraint systems.
  • the sensor device according to the invention is particularly suitable for video surveillance systems, such as range video systems and camera systems, the spatial stereo camera systems being particularly worth mentioning.
  • video surveillance systems such as range video systems and camera systems
  • the spatial stereo camera systems being particularly worth mentioning.
  • such systems can be used well in motor vehicles.
  • the light source can consist, for example, of light bulbs or - with further advantageous effects - of LEDs, laser diodes or IREDs (TR Emitting Diodes).
  • the cover according to the invention can also have no optical effect according to a simple variant In other words, the housing can be used not only as an optically effective part of the optics in front of an image sensor, but also as - alone or in conjunction with other optical functional elements - optically acting or only as a covering Part in front of the light source. That means the Lic
  • the source as the first optical functional element can also be seated in the same housing as the sensor device as the second optical functional element.
  • Show it 1 shows a schematic cross section of an exemplary embodiment of the optical sensor device according to the invention
  • FIG. 2 shows a schematic cross section of a part of the housing acting as an optical lens of an exemplary embodiment of the optical sensor device according to the invention
  • FIG. 3 shows a schematic illustration of an application example of a video-based system which contains the optical sensor device according to the invention.
  • FIG. 1 shows a schematic cross section of an example of the optical sensor device 1 according to the invention.
  • the optical sensor device 1 is enclosed by a device housing 5.
  • This housing 5 consists of cast parts, such as injection molding. Manufacturing in another
  • the device housing 5 has a lenticular shape 3. It is part of the optics of the sensor device 1 that additionally contain a further lens 9.
  • the optics need not necessarily consist of two parts acting as a lens, but is shaped differently depending on the optical requirements and contains one or more optical elements. For example, only the lenticular shape 3 of the device housing 5 can be sufficient as optics for a corresponding use of the sensor device 1 with a special further design.
  • the device housing 5 exists in particular in the area of the lenticular
  • Part 3 made of a material that is transparent to electromagnetic radiation in a frequency range in the NTR and or VES.
  • a material that is transparent to electromagnetic radiation in a frequency range in the NTR and or VES For example, colored plexiglass or colored polycarbonate for injection molding are preferred. These materials are opaque to the human eye, but transparent to radiation from the NTR range, so that the viewer views the housing 5 as an ordinary device cover.
  • the incident radiation is focused by the optics 3, 9 onto the side of the sensor surface 11 that is sensitive to this radiation.
  • a beam path is sketched in dashed lines starting from an object point 13.
  • the sensor surface 11 is, for example, a CCD chip sensitive to NIR radiation.
  • the image information picked up by the sensor surface 11 is forwarded in electronic form via the signal line 15 to image-processing or image-displaying system components, as is known in the prior art.
  • the housing 5 In order to shield the sensor surface 11 from radiation which passes through the housing 5 outside the lenticular shape 3, the housing 5 is provided with a shield 17 in these areas from the inside.
  • This shield 17 consists of a material which is impermeable to radiation from the frequency range sensitive to the sensor surface 11.
  • a filter 19 is located in the beam path between the optics 3, 9 and the sensor surface 11.
  • This filter is, for example, only permeable to radiation from a predetermined, narrowly limited frequency band in the NTR range.
  • the filter material used is, for example, TiO2, which has a permeable frequency window of 40 nm bandwidth in the NTR range.
  • FIG. 2 schematically shows a cross section of a part 3 of the housing 5, which acts as an optical lens, of an example of the optical sensor device 1 according to the invention.
  • the housing 5 is transparent to NTR radiation. It is spherically bulged in the central region 3 on the object side. In comparison, the inside of the housing 5 in this area 3 is only slightly shaped in the direction of the object, so that the diameter of the housing wall increases towards the center.
  • the optical axis 21 runs perpendicular to the surface of the housing 5 through the center of the area 3 shaped as a lens.
  • the auxiliary edge 7 surrounding this area 3 serves, for example, for the distance-fixed connection of further elements of the optics or other components of the sensor device.
  • FIG. 3 shows a schematic illustration of a video-based system containing the optical sensor device 1 according to the invention for monitoring the interior of a Motor vehicle 25.
  • the monitoring is used to control restraint systems, such as airbags.
  • the interior of motor vehicle 25 is illuminated by an NTR lamp 27.
  • This is, for example, a field of LEDs emitting in the NTR area.
  • the motor vehicle interior illuminated in this way is recorded by a recording system which contains one or more optical sensor devices 1 which are sensitive in this frequency range.
  • the recording system captures the objects of the motor vehicle interior in three dimensions and is designed, for example, as a range video system or as a stereo camera system.
  • the object-side part of the housing of the optical sensor device 1 containing the optics preferably forms part of the interior paneling of the motor vehicle 25.
  • the sensor device 1 is connected to a control unit 29 of the recording system.
  • the control device 29 regulates the functions, which primarily include the alignment and the sensitivity of the sensor device 1, and receives the image signals. It is with that
  • Control unit 31 of the restraint system connected. This evaluates the transmitted image data with regard to the type, position and distance of the object in front of the airbag 33. If, for example, no living object is detected in front of the airbag 33 in the event of an accident, the control system 31 does not ignite the airbag. However, if a person is in the seat in front of the airbag 33, depending on the distance of the person to the deployment area of the airbag, the airbag is more or less ignited. If the person is very close to the deployment area, the ignition of the airbag 33 is weakened. This reduces the risk of injury when igniting the airbag.
  • the optical sensor device according to the invention can be used in banks for monitoring the checkout area.
  • the customer does not recognize the optical sensor device as such and therefore does not feel disturbed by camera surveillance.
  • the features of the subclaims can be combined with one another essentially freely and not by the order in which the claims exist, provided that they are independent of one another.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

L'invention concerne une unité modulaire (1) optique, comprenant en particulier un dispositif de détection, comprenant un logement (5) entourant ledit dispositif, une surface de détection (11) sensible aux rayonnements, et disposée de manière à détecter un rayonnement électromagnétique provenant d'une partie de fréquence de longueur et largeur prédéterminées du domaine spectral contenant la partie infrarouge (NIR) proche et/ou visible (VIS), ainsi qu'un dispositif optique (3, 9). L'objectif de l'invention est de réduire les coûts et les dépenses pour la fixation d'une lentille sur le logement (5) et de conserver une surface de logement côté objet unitaire. A cet effet, un élément (3) agissant comme une lentille optique, côté objet du dispositif optique (3, 9) ou l'ensemble du dispositif optique (3) du dispositif sont utilisés en tant que composant du logement (5) du dispositif (1).
EP04798201A 2004-01-09 2004-11-12 Dispositif de detection optique a dispositif optique integre au moins partiellement dans le logement de l'appareil Withdrawn EP1706992A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004001425A DE102004001425A1 (de) 2004-01-09 2004-01-09 Optische Sensorvorrichtung mit zumindest teilweise in das Gerätegehäuse integrierter Optik
PCT/EP2004/052947 WO2005067281A1 (fr) 2004-01-09 2004-11-12 Dispositif de detection optique a dispositif optique integre au moins partiellement dans le logement de l'appareil

Publications (1)

Publication Number Publication Date
EP1706992A1 true EP1706992A1 (fr) 2006-10-04

Family

ID=34716406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04798201A Withdrawn EP1706992A1 (fr) 2004-01-09 2004-11-12 Dispositif de detection optique a dispositif optique integre au moins partiellement dans le logement de l'appareil

Country Status (4)

Country Link
US (1) US20090309026A1 (fr)
EP (1) EP1706992A1 (fr)
DE (1) DE102004001425A1 (fr)
WO (1) WO2005067281A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101970962B (zh) * 2008-03-14 2012-12-12 松下电器产业株式会社 冷藏库
WO2010019515A2 (fr) * 2008-08-10 2010-02-18 Board Of Regents, The University Of Texas System Appareil d'imagerie hyperspectrale à traitement de lumière numérique
US20110170253A1 (en) * 2010-01-13 2011-07-14 Smart Technologies Ulc Housing assembly for imaging assembly and fabrication method therefor
DE102017121479A1 (de) * 2017-09-15 2019-03-21 Bayerische Motoren Werke Aktiengesellschaft Schutzscheibe für einen optoelektronischen Sensor, insbesondere eine Kamera, sowie Sensorsystem

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Publication number Priority date Publication date Assignee Title
US4491900A (en) * 1982-09-27 1985-01-01 Savage John Jun Lens and mount for use with electromagnetic wave source
US5026990A (en) * 1989-08-28 1991-06-25 Sentrol, Inc. Method and apparatus for installing infrared sensors in intrusion detection systems
JP3146420B2 (ja) * 1990-03-23 2001-03-19 アイシン精機株式会社 車載撮像装置
US5302778A (en) * 1992-08-28 1994-04-12 Eastman Kodak Company Semiconductor insulation for optical devices
US6151065A (en) * 1995-06-20 2000-11-21 Steed; Van P. Concealed integrated vehicular camera safety system
JPH11281351A (ja) * 1998-01-28 1999-10-15 Fuji Electric Co Ltd 測距装置
DE19805000A1 (de) * 1998-02-07 1999-08-12 Opel Adam Ag Optische Sensorvorrichtung für Kraftfahrzeuge
US6710348B1 (en) * 1998-06-30 2004-03-23 Robert Bosch Gmbh Apparatus for sensing electromagnetic radiation
JP2000241696A (ja) * 1999-02-17 2000-09-08 Canon Inc 光学センサーパッケージの保持・取付け方法
US20040252993A1 (en) * 2002-04-05 2004-12-16 Hidenori Sato Camera built-in mirror equipment
JP4088100B2 (ja) * 2002-05-14 2008-05-21 株式会社村上開明堂 カメラ内蔵型バックミラー装置
DE10255797A1 (de) * 2002-11-28 2004-06-17 Daimlerchrysler Ag Verfahren zur Erfassung der vorausliegenden Umgebung eines Strassenfahrzeugs mittels eines Umgebungserfassungssystems
US20060287821A1 (en) * 2005-06-15 2006-12-21 William Lin Computer rearview mirror
US20070064108A1 (en) * 2005-09-16 2007-03-22 Haler Robert D Rear view mirror with integrated video system

Non-Patent Citations (1)

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See references of WO2005067281A1 *

Also Published As

Publication number Publication date
WO2005067281A1 (fr) 2005-07-21
DE102004001425A1 (de) 2005-08-04
US20090309026A1 (en) 2009-12-17

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