WO2006064166A1 - Systeme de vision indirect permettant de minimiser les angles morts sans distorsion de l'image formee - Google Patents
Systeme de vision indirect permettant de minimiser les angles morts sans distorsion de l'image formee Download PDFInfo
- Publication number
- WO2006064166A1 WO2006064166A1 PCT/FR2005/051095 FR2005051095W WO2006064166A1 WO 2006064166 A1 WO2006064166 A1 WO 2006064166A1 FR 2005051095 W FR2005051095 W FR 2005051095W WO 2006064166 A1 WO2006064166 A1 WO 2006064166A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mirror
- diopter
- image
- vehicle
- motor vehicle
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/001—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles integrated in the windows, e.g. Fresnel lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
- B60R1/081—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors avoiding blind spots, e.g. by using a side-by-side association of mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/02—Catoptric systems, e.g. image erecting and reversing system
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
Definitions
- the present invention relates to the field of indirect vision systems such as retrovision.
- indirect vision is used in the sense of the present description to refer to an object by means of an auxiliary system comprising, for example, a mirror, by the intermediate of which an image of said object is restored with or without enlargement or deformations.
- the present invention relates more particularly to mirrors for example used in motor vehicles.
- the rearview system according to the invention can significantly improve road safety. Such an improvement is obtained by reducing the blind spots, ie the field or field of vision which remains inaccessible to the driver, especially when the latter is performing or preparing to perform an overtaking maneuver.
- the image formed in the rearview mirror according to the invention does not undergo or almost no deformation or distortion.
- a camera allows the transmission of information on a screen inside the vehicle.
- This solution does not account for distances and especially includes electronic elements likely to fail, which implies the immobilization of the vehicle for the time of repair, if no auxiliary system is provided.
- mirrors having two parts: a flat conventional part extending by an aspherical part.
- the aspherical part the furthest away from the conductor, is constituted by an aspherical mirror, that is to say having a constant radius only in a plane, so that the field of vision of the driver is substantially widened.
- This solution if it makes it possible to greatly reduce the blind spot by doubling the retrovision angle, however, induces optical deformations and a decrease in the size of the restored image.
- the present invention relates to a retrovision system for effectively solving the problems caused by the previous devices.
- the system according to the invention makes it possible to reduce blind spots very strongly while restoring to the driver an image, for example of the vehicle which doubles it, which is practically free of deformation and which preferably has an identical size, slightly greater or approaching very substantially of that which would have said vehicle, if it was observed via a conventional plane mirror.
- the object can thus be enlarged for better visibility.
- Such a system obviously allows a very clear improvement in safety as well as driving comfort, especially in situations such as lane changes, overtaking or even slowdowns.
- the invention can in particular be implemented in different ways and may have different objectives, for example: improve rearview by reducing blind spots without reducing the size of the outside rearview mirror, preserve the same rear view but reduce the size of the outside rearview mirror, to improve aerodynamics and significantly reduce vehicle fuel consumption, improve rear view and reduce mirror size.
- it can also be used to correct the deformations of the image restored by a diopter consisting of a non-flat glass surface, for example the rear window of the vehicle.
- the invention relates to a rear view system for a motor vehicle comprising a catadioptric assembly of at least one exterior or interior rearview mirror comprising a non-flat mirror and at least one diopter forming part of a side window of the vehicle or integrated thereto, said mirror and said diopter being configured and arranged such that the image of the object rendered by the mirror-diopter assembly is not or substantially not deformed and in such a way that the dead angle or the area not covered by said system is minimized.
- minimized dead angle it is understood that on equal surface mirrors, the field of vision inaccessible to the driver is less than that obtained through a mirror constituted by a plane mirror.
- said mirror and said diopter are also configured and arranged in such a way that the image restored from the object by the mirror-diopter assembly is substantially identical or enlarged with respect to that obtained by a plane mirror.
- the dimensions of the image restored by the mirror-diopter assembly are between about 1 and about 2 times those obtained by a plane mirror, preferably between about 1 and about 1.5 times that obtained by a mirror. plan.
- the retrovision system for a motor vehicle as previously described comprises a rearview mirror including a non-flat mirror and a diopter forming part of the window of the vehicle or integrated therewith. Integrated means that said diopter can for example be glued to a front side window of the vehicle or form at least a portion thereof.
- bonded means an optical bonding, that is to say that the bonding is carried out by any technique to not change the optical characteristics of the diopter-glass assembly.
- the non-planar mirror according to the invention is generally of the convex spherical type, but any other non-plane mirror may be used, for example a mirror of the spherical concave, toric type, etc.
- the diopter according to the invention has at least one face of the spherical concave or convex, toric type.
- said lens is convergent or divergent and preferably convergent.
- the diopter is made of glass or preferably in a hard plastic material such as polycarbonate.
- said diopter consists of a laminated glass plate incorporating a plastic sheet, such as PVB (poly-vinyl-butyral), of variable optical index.
- PVB poly-vinyl-butyral
- the diopter may constitute all or part of a fixed front of a front side window of a motor vehicle.
- the invention also relates to a front side window for a motor vehicle comprising or incorporating a diopter as previously described and the motor vehicle incorporating such a diopter or the rearview system described above.
- FIG. 1 illustrates a first embodiment of a rearview system according to the invention including a diopter incorporated in the front side window of a motor vehicle associated with a rearview mirror disposed outside the passenger compartment.
- FIG. 2 illustrates a second embodiment of a rearview system according to the invention including a diopter incorporated in the front side window of a motor vehicle associated with a rearview mirror disposed inside the passenger compartment.
- Figure 3 is a schematic representation of the optical mark constituted by the visual axis of the conductor.
- Figure 4 shows the final image obtained from the test pattern for the simulation of an aspherical mirror according to the prior art.
- FIG. 5 schematizes the image obtained by the convex mirror before correction.
- FIG. 6 illustrates the image of the sight perceived by the driver after correction by the diopter inserted on the front window of the vehicle.
- FIG. 1 are shown top views of the various windows fitted to a motor vehicle, namely the windshield 1, the front right side windows 2 and left 2 'and the rear side windows 3.
- the side windows 2 comprise a sliding portion 4 in glass and a fixed or fixed part before 5 of which at least part 9 is made of polycarbonate.
- the rearview mirror comprising a convex spherical mirror 6 according to the invention is configured, positioned and adjusted so that all the light rays coming from the different directions between the two extremes represented by the lines discontinuous 7 and 8, can be reflected by said mirror 6 to the polycarbonate portion 9 of the front fixed 5.
- the polycarbonate portion 9 advantageously plays the role of a diopter.
- the latter is configured in such a way that a normal image is restored to the eyes of the driver.
- normal is meant that said deformed and reduced image is rectified and returned to a substantially identical scale of the vehicle to that which the driver would have using only a conventional plane mirror.
- normal image one can also hear according to the invention an image substantially without deformation, within the meaning of the European standard 2003/97 / CE.
- the dimensions of the mirror 6 and the diopter 9 are adapted by construction so that the correction can be made regardless of the driver's point of vision, particularly as a function of his driving position, his height and its morphology, for example in the sense of the European standard 2003/97 / CE.
- the set of possible positions is, for example, schematized by the rectangle 11. It is also possible according to the invention to provide adjustment means for the mirror directly accessible to the driver.
- FIG. 2 illustrates another possible embodiment of the invention similar to the previous one but in which the rearview mirror is this time arranged inside. the passenger compartment of the vehicle.
- the same numbering has been retained to designate identical elements or ensuring the same function as in the previous mode.
- the light rays pass through the polycarbonate diopter 9 present on the front fixed link 5 which has a dual function of deflection towards the convex inner mirror 6 of said radii and of "advance" correction of the deformations and reductions induced by the convex mirror .
- the driver will perceive a normal image, as previously defined.
- the object is reduced by 97.7% by the convex mirror.
- the minimum radius of curvature that a diopter according to the invention should adopt is then calculated by considering in a second step the optical mark constituted by the visual axis 12 of the conductor (FIG. ).
- the rearview mirror is located 0.253 m from the side window, ie the diopter.
- R2 is the radius of the interior face of the diopter (interior side), it is calculated that the minimum radius of curvature R2 of the diopter on its inner face must be greater than 0.284 m.
- the software calculations have made it possible to refine the size and the optical power of said diopter so that the image restored to the conductor is not or only slightly distorted and has a substantially identical size, see enlarged compared to the image obtained by a plane mirror.
- the lens radius corresponding to an optimal rendering of the image has been refined by dichotomy and may be suitable whatever the driver's vision point, depending on his driving position, its size and morphology, for example in the sense of the European standard 2003/97 / EC.
- a rearview mirror comprising a convex mirror 0.450m radius and two times smaller than the mirrors of the prior art was used.
- the images of the object perceived by the driver were also simulated from the Studio ® software.
- FIG. 4 shows the final image obtained from the test pattern for the simulation of an aspherical rear-view mirror according to the prior art
- FIG. 5 the image obtained by the convex mirror before correction
- FIG. the sight perceived by the driver after correction by the diopter inserted on the front window of the vehicle.
- FIGS. 4, 5 and 6 show that the retrovision system according to the invention makes it possible at the same time to obtain an image that is not deformed and of a size comparable to that obtained by a plane mirror, by using a mirror of size two. times lower and minimizing blind spots.
- the invention is not limited to the embodiments described.
- a material other than polycarbonate for example glass or a flat diopter having a variable index, constituted for example by a laminated glass plate incorporating a sheet of a plastic nature such as PVB (polyvinylbutyral) of variable optical index.
- PVB polyvinylbutyral
- Examples 1 and 2 have been calculated for a single optical system in which the corrective diopter is conveniently arranged according to the optical axis consisting of the eyes of the driver and the mirror (see Figure 3).
- said diopter When said diopter is disposed on the side window of a vehicle, its position generally differs substantially from this ideal case and the radius of curvature of the diopter may in particular be adapted and adjusted to each situation, in particular according to the respective positions of the rearview mirror, of the driver's eye and the side window, according to techniques and calculations commonly used in the field of optics.
- a non-constant radius of curvature of the diopter used can be envisaged according to the invention to solve this problem.
- the diopter can be placed on any one of the windows of the vehicle (right side window as described, left side window, rear window, etc., the associated rearview mirror being obviously arranged accordingly, inside or on outside the vehicle.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
- Optical Elements Other Than Lenses (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Image Processing (AREA)
- Eye Examination Apparatus (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Window Of Vehicle (AREA)
- Ventilation (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/721,904 US8488256B2 (en) | 2004-12-17 | 2005-12-16 | Indirect vision system enabling blind spots to be minimized without distorting the formed image |
DE602005009743T DE602005009743D1 (de) | 2004-12-17 | 2005-12-16 | Indirektes sichtsystem, das eine minimierung toter winkel ermöglicht, ohne das erzeugte bild zu verzerren |
EP05825566A EP1827907B1 (fr) | 2004-12-17 | 2005-12-16 | Systeme de vision indirect permettant de minimiser les angles morts sans distorsion de l'image formee |
JP2007546148A JP4971180B2 (ja) | 2004-12-17 | 2005-12-16 | 形成画像を歪ませることなしに盲点の極小化を実現する間接観察システム |
PL05825566T PL1827907T3 (pl) | 2004-12-17 | 2005-12-16 | System widzenia pośredniego umożliwiający minimalizowanie kątów martwych bez zniekształcenia utworzonego obrazu |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0453052 | 2004-12-17 | ||
FR0453052A FR2879760B1 (fr) | 2004-12-17 | 2004-12-17 | Systeme de vision indirect permettant de minimiser les angles morts sans distorsion de l'image formee |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006064166A1 true WO2006064166A1 (fr) | 2006-06-22 |
WO2006064166A8 WO2006064166A8 (fr) | 2007-10-04 |
Family
ID=34951642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2005/051095 WO2006064166A1 (fr) | 2004-12-17 | 2005-12-16 | Systeme de vision indirect permettant de minimiser les angles morts sans distorsion de l'image formee |
Country Status (9)
Country | Link |
---|---|
US (1) | US8488256B2 (fr) |
EP (1) | EP1827907B1 (fr) |
JP (1) | JP4971180B2 (fr) |
AT (1) | ATE407833T1 (fr) |
DE (1) | DE602005009743D1 (fr) |
ES (1) | ES2313448T3 (fr) |
FR (1) | FR2879760B1 (fr) |
PL (1) | PL1827907T3 (fr) |
WO (1) | WO2006064166A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2894536A1 (fr) * | 2005-12-09 | 2007-06-15 | Holophane Sa Sa | Retroviseur de vehicule automobile |
FR2894535A1 (fr) * | 2005-12-09 | 2007-06-15 | Holophane Sa Sa | Retroviseur de vehicule automobile |
EP2390141A1 (fr) * | 2010-05-31 | 2011-11-30 | Volvo Car Corporation | Interface de capteur optique |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10300844B2 (en) * | 2016-06-16 | 2019-05-28 | Ford Global Technologies, Llc | Device for indicating a turn signal on a motor vehicle window |
JP6975003B2 (ja) * | 2017-09-29 | 2021-12-01 | 株式会社デンソー | 周辺監視装置およびその校正方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB279893A (en) * | 1926-10-29 | 1928-03-15 | Andre Marius Merley | Dioptric vision instrument specially applicable for motor road vehicles |
DE3146486A1 (de) * | 1981-11-24 | 1983-06-01 | Kurt Dr.-Ing. 7802 Merzhausen Heber | Spiegeleinheit |
DE3520593A1 (de) * | 1985-06-08 | 1986-12-11 | Alwin 7000 Stuttgart Gottschalk | Sichtverbesserung bei kraftfahrzeugen nach hinten durch optische systeme |
WO1996015921A1 (fr) * | 1994-11-22 | 1996-05-30 | Koo Ko | Systeme de retroviseur destine a des vehicules |
US5526195A (en) * | 1991-10-31 | 1996-06-11 | Optical Perspectives Ltd. | Rear-view system for vehicles |
DE19813627A1 (de) * | 1998-03-27 | 1999-10-07 | Bernd Wipper | Streu-Linsen-Vorrichtung um dem "Toten Winkel" der Holme (A. Pfosten) eines Kraftfahrzeuges oder dergleichen aufzuheben |
DE10055260A1 (de) * | 2000-11-08 | 2001-07-26 | Fritz Reupsch | Außenspiegel für Kraftfahrzeuge |
EP1520751A1 (fr) * | 2003-10-01 | 2005-04-06 | Casper Johannes Camille Defesche | Véhicule comprenant un miroir latéral situé à l'intérieur du véhicule et ensemble de montage avec un tel miroir |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5915014U (ja) * | 1982-07-16 | 1984-01-30 | 株式会社東海理化電機製作所 | 車両用ミラ−装置 |
JPH0172432U (fr) * | 1987-11-03 | 1989-05-16 | ||
US5559640A (en) * | 1995-03-29 | 1996-09-24 | Rockwell International Corporation | Automotive rear view mirror system |
JPH09118179A (ja) * | 1995-10-26 | 1997-05-06 | Toyota Motor Corp | 自動車の後方視界拡大装置 |
FR2794700B1 (fr) * | 1999-06-08 | 2001-08-03 | Renault | Systeme de retrovision pour vehicule |
-
2004
- 2004-12-17 FR FR0453052A patent/FR2879760B1/fr not_active Expired - Fee Related
-
2005
- 2005-12-16 EP EP05825566A patent/EP1827907B1/fr active Active
- 2005-12-16 WO PCT/FR2005/051095 patent/WO2006064166A1/fr active Application Filing
- 2005-12-16 JP JP2007546148A patent/JP4971180B2/ja active Active
- 2005-12-16 DE DE602005009743T patent/DE602005009743D1/de active Active
- 2005-12-16 ES ES05825566T patent/ES2313448T3/es active Active
- 2005-12-16 PL PL05825566T patent/PL1827907T3/pl unknown
- 2005-12-16 US US11/721,904 patent/US8488256B2/en active Active
- 2005-12-16 AT AT05825566T patent/ATE407833T1/de not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB279893A (en) * | 1926-10-29 | 1928-03-15 | Andre Marius Merley | Dioptric vision instrument specially applicable for motor road vehicles |
DE3146486A1 (de) * | 1981-11-24 | 1983-06-01 | Kurt Dr.-Ing. 7802 Merzhausen Heber | Spiegeleinheit |
DE3520593A1 (de) * | 1985-06-08 | 1986-12-11 | Alwin 7000 Stuttgart Gottschalk | Sichtverbesserung bei kraftfahrzeugen nach hinten durch optische systeme |
US5526195A (en) * | 1991-10-31 | 1996-06-11 | Optical Perspectives Ltd. | Rear-view system for vehicles |
WO1996015921A1 (fr) * | 1994-11-22 | 1996-05-30 | Koo Ko | Systeme de retroviseur destine a des vehicules |
DE19813627A1 (de) * | 1998-03-27 | 1999-10-07 | Bernd Wipper | Streu-Linsen-Vorrichtung um dem "Toten Winkel" der Holme (A. Pfosten) eines Kraftfahrzeuges oder dergleichen aufzuheben |
DE10055260A1 (de) * | 2000-11-08 | 2001-07-26 | Fritz Reupsch | Außenspiegel für Kraftfahrzeuge |
EP1520751A1 (fr) * | 2003-10-01 | 2005-04-06 | Casper Johannes Camille Defesche | Véhicule comprenant un miroir latéral situé à l'intérieur du véhicule et ensemble de montage avec un tel miroir |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2894536A1 (fr) * | 2005-12-09 | 2007-06-15 | Holophane Sa Sa | Retroviseur de vehicule automobile |
FR2894535A1 (fr) * | 2005-12-09 | 2007-06-15 | Holophane Sa Sa | Retroviseur de vehicule automobile |
EP2390141A1 (fr) * | 2010-05-31 | 2011-11-30 | Volvo Car Corporation | Interface de capteur optique |
Also Published As
Publication number | Publication date |
---|---|
ATE407833T1 (de) | 2008-09-15 |
PL1827907T3 (pl) | 2009-02-27 |
FR2879760A1 (fr) | 2006-06-23 |
EP1827907B1 (fr) | 2008-09-10 |
DE602005009743D1 (de) | 2008-10-23 |
WO2006064166A8 (fr) | 2007-10-04 |
JP2008524063A (ja) | 2008-07-10 |
US8488256B2 (en) | 2013-07-16 |
US20090303616A1 (en) | 2009-12-10 |
JP4971180B2 (ja) | 2012-07-11 |
FR2879760B1 (fr) | 2007-06-08 |
EP1827907A1 (fr) | 2007-09-05 |
ES2313448T3 (es) | 2009-03-01 |
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