WO2006002558A1 - Nachtsichtsystem für fahrzeuge - Google Patents
Nachtsichtsystem für fahrzeuge Download PDFInfo
- Publication number
- WO2006002558A1 WO2006002558A1 PCT/CH2005/000339 CH2005000339W WO2006002558A1 WO 2006002558 A1 WO2006002558 A1 WO 2006002558A1 CH 2005000339 W CH2005000339 W CH 2005000339W WO 2006002558 A1 WO2006002558 A1 WO 2006002558A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- angle
- filter
- visible part
- radiation
- transmitted
- Prior art date
Links
- 230000004297 night vision Effects 0.000 title description 4
- 230000005855 radiation Effects 0.000 claims abstract description 36
- 238000005286 illumination Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910000484 niobium oxide Inorganic materials 0.000 description 2
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
- F21S41/13—Ultraviolet light; Infrared light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/12—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters
- G02B5/281—Interference filters designed for the infrared light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters
- G02B5/285—Interference filters comprising deposited thin solid films
Definitions
- the present invention relates to night vision auxiliary systems for vehicles.
- Such systems comprise an infrared headlight which emits radiation directed outwards in front of the vehicle, and an infrared camera and a system for transmitting an image recorded by the camera in visible form to the driver ,
- the headlamp has a white light source and a filter, which suppresses the visible part of the radiation of the radiation source and transmits the part located in the infrared region.
- the radiation range between 800nm and 100nm is expensive.
- the problem here is that the (red) area to be suppressed adjoins directly to the useful, pass-through infrared range.
- the transmission characteristic of the filter it would be necessary for the transmission characteristic of the filter to have steep edges, since a necessary very good suppression in the red region contrasts with a necessary very good transmission in the IR range.
- DE 699 03 076 discloses an infrared illuminating device which comprises a filter whose transmittance is designed to emit white and infrared radiation along an axis of the device, the intensity of the white radiation indeed being quite high Zero can be different, but carries less than 2000 Cd be ⁇ .
- the filter transmits infrared rays (IR rays), ultraviolet rays (UV rays) and visible, blue and red near-rays and visible Grund ⁇ rays with yellow-green color between them.
- FIG. 1 schematically shows the transmittance T of a notch filter as it can be used as a function of the wavelength ⁇ according to an embodiment in DE 699 03 076. The visible residual radiation transmitted in this case then adds to a white color impression.
- Such notch filters can be realized by means of a multilayer system. Their reflection and transmission characteristics are based essentially on interference effects. According to the prior art, the filter should then be realized in such a way that it can transmit the visible radiation of a radiation source in such a way that the synthesis of the transmitted visible part produces white light (see claim 3 of DE 69903 076).
- interference filters show an angle-dependent transmission behavior, the filter must, however, be adapted to the respective illumination geometry of the headlight.
- FIG. 3 a shows a headlamp 2 with a lighting geometry in which the filter 10 is acted upon essentially vertically.
- the illumination geometry of the headlight in FIG. 3b leads to a loading geometry in which the vertical action essentially plays no role.
- such an adaptation of the filter to a respective new geometry is complex and therefore expensive.
- Another problem is the signal fluctuations which are difficult to avoid associated with the production of such interference filters.
- the key parameters that determine the transmission characteristics are the opti- layer thicknesses and the refractive indices of the layers. Small variations in these parameters during the coating process or, much more likely, from one coating to the next, can influence which parts of the visible light are transmitted. It is difficult to observe that only a small part of the visible radiation is to be transmitted (for example in the range of 0.5%) and therefore even small uncertainties in the transmission can lead to large changes in the color impression.
- the color impression is determined by essentially three influencing factors: a) the emission characteristic of the light source (typical light sources have their maximum in the green or yellow-green spectral range), b) a physiological factor which depends on the wavelength-dependent light inc - sensitivity of the human visual system is related, where the photosensitivity in the yellow is highest and c) the transmission characteristic of the optical system used Sys ⁇ .
- the color impression can be specified by means of the so-called color coordinates.
- FIG. 2 shows a schematic diagram of how blue (B), green (G), red (R) and yellow (Y) color impressions are to be assigned to a corresponding diagram.
- the area is framed by a broken line in which a white color impression prevails.
- the hatched area shown in FIG. 2 indicates the legally permissible range currently prescribed for a system in accordance with the so-called ECE standard, which are fulfilled here. that should. This permitted range is shown enlarged again in FIG. 4.
- a filter according to the invention has the property of transmitting a portion of the visible radiation for a wide range of angles of incidence, such that for each of the angles of incidence of the area white light is transmitted.
- the filter is to be used in a night vision auxiliary system equipped with a halogen headlamp from the company HRS (12V, 55W, 64211SUP).
- HRS (12V, 55W, 64211SUP).
- the corresponding spectral profile is shown in FIG.
- the schematic structure of such a headlamp is shown in FIG. 6a.
- the substrate material used for the filter is a Corning glass substrate
- the coating materials niobium oxide are used as high refractive index material and SiO2 as low refractive index material for the filter.
- Alternative coating materials would be possible, for example, titanium oxide / silicon oxide or tantalum oxide / silicon oxide.
- ASAP RayTrace program
- the design will additionally be for 0 to 40 ° optimized so that the variation along the s ' ECE white area axis''( Figure 4 along the axis AA v ).
- the design is optimized step by step for an angle.
- a design is determined, which transmits on average less than 0.5% for 20 ° incidence angle in the visible range.
- the design is designed such that less than 60% are transmitted from about 1040 nm to a width of at least 25 nm in the near infrared range.
- the color coordinates for the angles of incidence 0 °, 30 ° and 40 ° are optimized so that they come within the range of the ECE standard.
- the limitation of the change in the green range is achieved by heavily weighting this range in the optimization. This is not only necessary to ensure that the filter design for incidence angles of 0 ° to 40 ° run along the ECE white area, but also to keep the Lichtellän ⁇ tion small, since in this case the green area has the largest th influence.
- Table 1 lists the optical layer thickness distribution of the design and the index of refraction used.
- the refractive index of the material used niobium oxide is 2.34 and silicon oxide is 1.47.
- sputtering technology was used in the example (more precisely: reactive DC magnetron sputtering ring).
- the optical spectra are continuously determined during the process (monitoring) and the sputtering process is corrected for measured deviations from the calculated target spectrum. This ensures that the realized
- the gefor ⁇ derten optical characteristics have.
- the monitoring is most heavily weighted during the production of the product, especially in the wavelength range of 480-580 nm.
- an infrared illumination device for motor vehicles for example a headlamp
- IAD plasma-assisted
- the device has a white line in one axis of the device
- infrared radiation in a wavelength range which is between 800 and 1200 nm, the infrared radiation having an intensity of more than 25 W / sr and the white radiation having a non-zero intensity of less than 2000 Cd Has.
- the filter is capable of transmitting a first visible part of a first partial beam of the radiation source at a first angle and a second visible part of a second partial beam of the radiation source at a second angle different from the first one. It is characteristic that the transmitted first visible part forms white light and the transmitted second visible part forms white light.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Astronomy & Astrophysics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Optical Filters (AREA)
- Road Signs Or Road Markings (AREA)
- Window Of Vehicle (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05750588A EP1766444A1 (de) | 2004-07-05 | 2005-06-17 | Nachtsichtsystem für fahrzeuge |
JP2007518434A JP4787826B2 (ja) | 2004-07-05 | 2005-06-17 | 車両用ナイトビジョンシステム |
KR1020077001544A KR101256235B1 (ko) | 2004-07-05 | 2005-06-17 | 차량용 야시 장치 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04015743.0 | 2004-07-05 | ||
EP04015743A EP1621903B2 (de) | 2004-07-05 | 2004-07-05 | Nachtsichtgerät für Fahrzeuge |
US58666404P | 2004-07-09 | 2004-07-09 | |
US60/586,664 | 2004-07-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006002558A1 true WO2006002558A1 (de) | 2006-01-12 |
Family
ID=34925614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2005/000339 WO2006002558A1 (de) | 2004-07-05 | 2005-06-17 | Nachtsichtsystem für fahrzeuge |
Country Status (9)
Country | Link |
---|---|
US (2) | US7357544B2 (de) |
EP (2) | EP1621903B2 (de) |
JP (1) | JP4787826B2 (de) |
KR (1) | KR101256235B1 (de) |
CN (2) | CN101440922B (de) |
AT (1) | ATE336017T1 (de) |
DE (1) | DE502004001171D1 (de) |
TW (1) | TWI349760B (de) |
WO (1) | WO2006002558A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4613947B2 (ja) * | 2007-12-07 | 2011-01-19 | ソニー株式会社 | 照明装置、色変換素子及び表示装置 |
DE102009056370A1 (de) | 2009-11-30 | 2011-06-01 | Automotive Lighting Reutlingen Gmbh | Kraftfahrzeugrückstrahler |
US8816306B2 (en) | 2011-12-15 | 2014-08-26 | Battelle Memorial Institute | Infrared light device |
CN102745135A (zh) * | 2012-07-24 | 2012-10-24 | 苏州工业园区七星电子有限公司 | 一种主动式车辆红外夜视系统 |
JP6786302B2 (ja) * | 2016-08-12 | 2020-11-18 | 株式会社小糸製作所 | 照明装置 |
CN108347560A (zh) * | 2018-01-17 | 2018-07-31 | 浙江大华技术股份有限公司 | 一种摄像机防太阳灼伤方法、摄像机及可读存储介质 |
US11906124B2 (en) | 2021-06-08 | 2024-02-20 | Apple Inc. | Multiband adjustable lights |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4931315A (en) * | 1986-12-17 | 1990-06-05 | Gte Products Corporation | Wide angle optical filters |
US5552927A (en) * | 1992-10-16 | 1996-09-03 | The Dow Chemical Company | All-polymeric cold mirror |
EP0936107A1 (de) * | 1998-02-12 | 1999-08-18 | Valeo Vision | Strahlungsvorrichtung für ein Nachtsicht-Hilfssystem für Kraftfahrzeug |
FR2800152A1 (fr) * | 1999-10-26 | 2001-04-27 | Valeo Vision | Projecteur de vehicule a miroir collecteur |
US20010019482A1 (en) * | 2000-02-15 | 2001-09-06 | Shoji Kobayashi | Infrared-ray radiating lamp for automobile |
EP1298481A2 (de) * | 2001-09-24 | 2003-04-02 | Hella KG Hueck & Co. | Nachtsichtvorrichtung für Fahrzeuge |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD203983A1 (de) † | 1981-12-31 | 1983-11-09 | Frank Teige | Interferenzfilter |
US4799745A (en) † | 1986-06-30 | 1989-01-24 | Southwall Technologies, Inc. | Heat reflecting composite films and glazing products containing the same |
CN2058888U (zh) * | 1989-10-25 | 1990-07-04 | 张有经 | 机动车辆前照明装置 |
JPH0486704A (ja) * | 1990-07-31 | 1992-03-19 | Iwasaki Electric Co Ltd | メタルダイクロイックミラーの製造方法 |
JP4544662B2 (ja) * | 1999-04-30 | 2010-09-15 | 日本真空光学株式会社 | 可視光線遮断赤外線透過フィルター |
JP2001060403A (ja) * | 1999-08-20 | 2001-03-06 | Stanley Electric Co Ltd | 可視光カット遮光シェードを用いたヘッドランプおよび該ヘッドランプを照明源とする車両用暗視装置 |
DE60017232T2 (de) † | 1999-11-10 | 2005-12-08 | Denglas Technologies, Llc | Schichten auf Basis von Nioboxid für optische Dünnfilmbeschichtungen und Verfahren zu deren Herstellung |
JP4663918B2 (ja) | 2001-06-28 | 2011-04-06 | 日置電機株式会社 | 静電容量測定方法、回路基板検査方法および回路基板検査装置 |
JP2003086146A (ja) | 2001-09-12 | 2003-03-20 | Stanley Electric Co Ltd | 赤外線電球および該赤外線電球を具備する赤外線投光用灯具 |
-
2004
- 2004-07-05 DE DE502004001171T patent/DE502004001171D1/de not_active Expired - Lifetime
- 2004-07-05 AT AT04015743T patent/ATE336017T1/de not_active IP Right Cessation
- 2004-07-05 EP EP04015743A patent/EP1621903B2/de not_active Expired - Lifetime
-
2005
- 2005-06-17 EP EP05750588A patent/EP1766444A1/de not_active Ceased
- 2005-06-17 CN CN200810176160.6A patent/CN101440922B/zh not_active Expired - Fee Related
- 2005-06-17 KR KR1020077001544A patent/KR101256235B1/ko not_active IP Right Cessation
- 2005-06-17 CN CNB2005800226897A patent/CN100451692C/zh not_active Expired - Fee Related
- 2005-06-17 WO PCT/CH2005/000339 patent/WO2006002558A1/de active Application Filing
- 2005-06-17 JP JP2007518434A patent/JP4787826B2/ja not_active Expired - Fee Related
- 2005-07-04 TW TW094122500A patent/TWI349760B/zh not_active IP Right Cessation
- 2005-07-05 US US11/174,835 patent/US7357544B2/en not_active Expired - Fee Related
-
2008
- 2008-01-25 US US12/020,078 patent/US7575350B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4931315A (en) * | 1986-12-17 | 1990-06-05 | Gte Products Corporation | Wide angle optical filters |
US5552927A (en) * | 1992-10-16 | 1996-09-03 | The Dow Chemical Company | All-polymeric cold mirror |
EP0936107A1 (de) * | 1998-02-12 | 1999-08-18 | Valeo Vision | Strahlungsvorrichtung für ein Nachtsicht-Hilfssystem für Kraftfahrzeug |
FR2800152A1 (fr) * | 1999-10-26 | 2001-04-27 | Valeo Vision | Projecteur de vehicule a miroir collecteur |
US20010019482A1 (en) * | 2000-02-15 | 2001-09-06 | Shoji Kobayashi | Infrared-ray radiating lamp for automobile |
EP1298481A2 (de) * | 2001-09-24 | 2003-04-02 | Hella KG Hueck & Co. | Nachtsichtvorrichtung für Fahrzeuge |
Also Published As
Publication number | Publication date |
---|---|
CN101440922B (zh) | 2015-05-13 |
JP4787826B2 (ja) | 2011-10-05 |
CN101019048A (zh) | 2007-08-15 |
EP1621903B2 (de) | 2010-07-28 |
US7575350B2 (en) | 2009-08-18 |
EP1621903A1 (de) | 2006-02-01 |
KR101256235B1 (ko) | 2013-04-17 |
ATE336017T1 (de) | 2006-09-15 |
EP1766444A1 (de) | 2007-03-28 |
US20080158898A1 (en) | 2008-07-03 |
US20060002124A1 (en) | 2006-01-05 |
CN100451692C (zh) | 2009-01-14 |
EP1621903B1 (de) | 2006-08-09 |
JP2008505001A (ja) | 2008-02-21 |
KR20070027727A (ko) | 2007-03-09 |
TW200602590A (en) | 2006-01-16 |
TWI349760B (en) | 2011-10-01 |
DE502004001171D1 (de) | 2006-09-21 |
CN101440922A (zh) | 2009-05-27 |
US7357544B2 (en) | 2008-04-15 |
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