WO2016028153A1 - Miroir - Google Patents

Miroir Download PDF

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Publication number
WO2016028153A1
WO2016028153A1 PCT/NL2015/050587 NL2015050587W WO2016028153A1 WO 2016028153 A1 WO2016028153 A1 WO 2016028153A1 NL 2015050587 W NL2015050587 W NL 2015050587W WO 2016028153 A1 WO2016028153 A1 WO 2016028153A1
Authority
WO
WIPO (PCT)
Prior art keywords
mirror
elements
mirror device
main
image
Prior art date
Application number
PCT/NL2015/050587
Other languages
English (en)
Other versions
WO2016028153A9 (fr
Inventor
Ysbrand Hans Wijnant
Original Assignee
Yssiwine B.V.
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 Yssiwine B.V. filed Critical Yssiwine B.V.
Publication of WO2016028153A1 publication Critical patent/WO2016028153A1/fr
Publication of WO2016028153A9 publication Critical patent/WO2016028153A9/fr

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
    • B60R1/02—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
    • B60R1/082—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 using a single wide field mirror or an association of rigidly connected mirrors

Definitions

  • the invention relates to a mirror device comprising a number of mirror elements which are arranged with a main axis parallel to each other and one behind another in a row.
  • side mirrors are essential in vehicles such as a car or a truck.
  • These side mirrors usually consist of a single mirror surface with which a driver is able to view rearward from his/her driver position.
  • the mirror surface must however be positioned for this purpose at a right angle to the side of the vehicle, whereby the mirror protrudes and increases the drag of the vehicle,
  • a mirror device is known from for instance US 2009201596.
  • This publication describes arid shows a wing mirror for a car, wherein several strips of mirror glass are arranged vertically, The of mirror glass lie in a plane more or less parallel to the side of a car, whereby the drag of the car is reduced. Because each strip of mirror glass produces a mirror image, the various strips are at different angles so that the combined image of the strips nevertheless provides a mirror image similar to that of a single mirror.
  • WO 9014971 describes a similar mirror concept as US
  • each strip of mirror glass has to be placed at a specific angle because the mirror images of individual elements have to be arranged in the correct sequence in order to create a complete mirror image .
  • This angle depends here on the distance and the angle at which the mirror is viewed.
  • composite mirror image will also change. Not only will spaces occur between the part-images or an overlap occur between the part-images, the distance between the different part-images will not remain constant either due to the different angles of the mirror strips relative to each other. It is thus for instance possible that when the viewing angle is changed the image is stretched more on one side than on the other side, creating unnatural distortion of the overall image . Or it may be the case that the part-images do not fit together, and a continuous image is thus never obtained.
  • mirror elements comprise two, or a multiple of two, mirror surfaces extending in the main axis direction, whereby the normals of the two mirror surfaces form an angle greater than 0° and smaller than 90°.
  • the mirror device according to the invention two mirror surfaces are provided per mirror element, whereby the image formed by a mirror element is reflected twice and is thereby true to reality, i.e. not mirrored. It is hereby not necessary to rearrange the sequence of the part-images as in the prior art .
  • the relative rotation of the elements can hereby remain
  • each mirror element can in fact thus have more or less the same angle and the image formed from the part-images remains the same .
  • the formed image is true to reality here and so not mirrored as is usual in the case of for instance rear-view mirrors of vehicles .
  • the mirror device according to the invention makes it seem as if one is actually looking back and not looking via a mirror.
  • the at least two mirror surfaces are each mutually abutting at an edge . This ensures that a mirror element provides one uninterrupted part-image.
  • the mirror elements are a five-sided or multi-sided prism and the mirror surfaces are each formed by a surface of the prism.
  • Five-sided or multi-sided prisms are understood to mean prisms with five or more prism surfaces .
  • Polymethyl methacrylate is a clear material through which light can pass unobstructed.
  • the prism surfaces can function as mirror surface when the angle made by the incoming light beam with the normal of the prism surface is sufficiently great that so-called total internal reflection results .
  • a five-or multi-sided prism it is thus possible to admit light via a first prism surface, to then allow the light; to be reflected within the prism surface onto a second and third prism surface, after which the deflected light can exit again via a fourth prism surface .
  • the mirror elements are arranged at a distance from each other such that from a predetermined point of view the mirror elements form a continuous mirror surface as if use were being made of one complete mirror surface.
  • the mirror surface will not provide a mirror image but an actual image, i.e. a non- mirrored image. The light beams are thus reflected in a
  • a mirror device according to the invention When a mirror device according to the invention is used as rear-vievi mirror for a vehicle, the position from, which the mirror is viewed is then more or less fixed, since every driver will be in the driver's seat . This relatively fixed position makes it possible to arrange the mirror elements at a distance from each other such that the driver will see the best possible image in the mirror device according to the invention .
  • the main axes of the number of elongate mirror elements are arranged in a main plane.
  • the main plane is preferably curved in a direction
  • the distance from the point of view to the various mirror elements will vary, and the angle of a light beam from a mirror element to the point of view will hereby also vary to some extent. Relatively small variation can be compensated, by giving the main plane a. curved form.
  • the individual mirror surfaces of the mirror elements can likewise be curved in a direction perpendicular to the mirror surface .
  • This curvature is preferably parabolic . Further minimal variations in the image are hereby compensated .
  • At least the mirror surfaces are arranged mirror- symmetrically, and the main plane runs through the plane of mirror symmetry.
  • the mirror elements are preferably elongate and the main axis is the longitudinal axis. Making use of elongate elements enables easy assembly of a mirror device which can be applied to a passenger car .
  • a number of mirror elements are arranged with their main axes mutually in line .
  • a mirror device is formed by a matrix of for instance compact elements.
  • the advantage is that in such a mirror device the angle of each element can be adjusted in order to obtain an optimal image .
  • Large elongate mirrors which can be replaced by such an embodiment according to the invention are for instance used in buses .
  • the elements lying mutually in line can be arranged here in a curved plane, whereby a bus driver obtains the desired image .
  • the main axes of the mirror elements are for this purpose preferably arranged in a main plane, and the main plane is curved in the direction of the main axis .
  • the invention further relates to a combination of a first mirror device according to the invention and a second mirror device according to the invention, wherein the first and second mirror device are arranged one behind the other with the main plane of the first mirror device in line with the main plane of the second mirror device .
  • each mirror device By arranging two mirror devices according to the present invention one behind the other each mirror device can be
  • the mirror elements of the first mirror device are arranged at a distance from each other such that from a predetermined first point of view the mirror elements form a continuous mirror surface
  • the mirror elements of the second mirror device are arranged at a distance from each other such that from a predetermined second point of view the mirror elements form a continuous mirror surface
  • Curving and shaping the main plane of each mirror device such that each point of view of a mirror device corresponds to the left or the right eye of the viewer enables the image to be fully optimized for the viewer, wherein the distance between the two eyes of the viewer and the variation in viewing distance from a point of view to the individual mirror elements are taken into account . Having the image for the left eye and the image for the right eye partially overlap enables the viewer to focus .
  • mirror device or combination of mirror devices can further be advantageous to arrange the mirror device or combination of mirror devices in a transparent housing.
  • the mirror elements can hereby not become soiled and, when used on a vehicle, such a transparent housing provides for an improved drag .
  • Figure 1 shows a cross-sectional view of an embodiment of a mirror device according to the invention
  • Figure 1A shows a detail of figure 1.
  • Figure 2 shows a side view of the mirror device according to figure 1.
  • Figure 3 shows a cross-sectional view of the mirror device on smaller scale than figure 1.
  • Figure 4 shows a cross-sectional view of the mirror device on smaller scale than figure 3.
  • Figure 5 shows a second embodiment of a mirror device according to the invention .
  • Figure 6 shows schematically a third embodiment of a mirror device according to the invention.
  • Figure 7 shows a cross-sectional view of an embodiment of the combination according to the invention.
  • FIG. 1 shows a cross-sectional view of an embodiment of a mirror device 1 according to the invention .
  • Mirror device 1 has elongate mirror elements 2 which are each a multi-sided prism.
  • Each mirror element 2 hereby has a first prism surface 3 and a second prism surface 4 which act as mirror surface .
  • Mirror surfaces 3, 4 are mutually abutting along a longitudinal edge 5,
  • Each mirror element 2 will reflect a part-image 6, 7, 8 from an original twice onto mirror surfaces 3, , whereby the
  • reflected part-images 6' , 7 ' and 8 ' in a correct sequence form a complete image which is the same as the original image .
  • Each prism 2 further has a third prism surface 9 and a fourth prism surface 10 (see figure 1A) along which the light from an original image can respectively enter and exit .
  • the angle of these two prism surfaces 9, 10 is selected such that the light is incident more or less perpendicularly on these surfaces 9, 10 and is hereby disrupted as little as possible .
  • the normal of mirror surface 3 and the normal of mirror surface 4 form an angle a. This angle lies between 0° and 90°.
  • the space between two successive prisms 2, along which no light for the image passes, can optionally be filled or used, for mutual attachment of prisms 2.
  • Figure 2 shows a side view of mirror device 1 in which prism surfaces 3, 9 are apparent and which clearly shows that the mirror elements are substantially elongate and are placed one behind another.
  • Figure 3 shows a cross-sectional view of mirror device 1 on smaller scale .
  • Mirror elements 2 are arranged with the
  • Mirror surfaces 3, 4 extend here on either side of this main plane 10, which at the same time is the plane of mirror symmetry of prism elements 2.
  • main plane 10 has a curvature perpendicularly of the longitudinal axes of mirror elements 2. Because of this curvature a converging beam 12 will be incident upon a point of view 11, i.e. eye of a viewer. Owing to the double reflection of mirror el.em.ents 2 the image incident upon eye 11 is the same as if the viewer were looking from the mirror point of view 13.
  • Figure 4 shows a cross-sectional view of mirror device 1 on even smaller scale than figure 3 from which is apparent that the curvature of main plane 10 compensates the variation in viewing angle from point of view 11.
  • the curvature ensures that the light from the image is always incident at the same angle on each mirror element 2, whereby distortions are reduced .
  • Figure 5 shows a. second embodiment of a mirror device 20 according to the invention .
  • mirror elements 21 with two mirror surfaces 22, 23 are arranged one behind another .
  • This embodiment 20 partly corresponds to the embodiment according to figure 1, wherein prism elements 2 are replaced by mirror elements 21.
  • Figure 6 shows schematically a third embodiment 30 of a mirror device according to the invention.
  • sm.al.ler mirror elements 31 are placed here in a matrix, wherein the virtual main plane in which main axes 32 lie is curved in two directions .
  • Figure 7 shows a cross-sectional view of a embodiment of the combination according to the invention with two mirror devices 1, as shown in figure 1.
  • main planes 10 in which mirror elements 2 lie two different images are provided, each for an eye 40, 41 of a viewer .
  • the curvature of main planes 10 ensures that the light from the image is always incident at the same angle on each mirror element 2, whereby distortions are reduced .
  • the curvature ensures that a convergent beam is incident upon each eye 40, 41.
  • each mirror device The light from, the image of each mirror device is optimized for each eye 40, 41 by providing two mirror devices 1 which are each provided with a curved main plane 10. In addition, the beams overlap each other in zone 42, whereby the eyes of the viewer can focus .

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)

Abstract

L'invention concerne un dispositif miroir comprenant un certain nombre d'éléments miroir allongés agencés de manière à se succéder en formant une rangée, les axes longitudinaux étant parallèles, les éléments miroir comprenant deux surfaces miroir s'étendant dans la direction longitudinale, les normales de ces deux surfaces miroir formant un angle supérieur à 0° et inférieur à 90 °
PCT/NL2015/050587 2014-08-22 2015-08-21 Miroir WO2016028153A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2013350A NL2013350B1 (nl) 2014-08-22 2014-08-22 Spiegel.
NL2013350 2014-08-22

Publications (2)

Publication Number Publication Date
WO2016028153A1 true WO2016028153A1 (fr) 2016-02-25
WO2016028153A9 WO2016028153A9 (fr) 2016-05-12

Family

ID=54477200

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2015/050587 WO2016028153A1 (fr) 2014-08-22 2015-08-21 Miroir

Country Status (2)

Country Link
NL (1) NL2013350B1 (fr)
WO (1) WO2016028153A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990014971A1 (fr) 1989-06-07 1990-12-13 William Harry Meise Retroviseur
DE19522900A1 (de) * 1995-06-23 1996-05-15 Daimler Benz Ag Außenspiegel für Kraftfahrzeuge
US5541762A (en) * 1993-02-01 1996-07-30 Levy; George S. Antiglare optical device
US5731900A (en) * 1991-05-24 1998-03-24 Milner; Peter James Optical reflector
WO1998036942A1 (fr) * 1997-02-21 1998-08-27 Milner Peter J Un systeme de retrovision optique
US20090201596A1 (en) 2008-02-07 2009-08-13 Gm Global Technology Operations, Inc. Aerodynamic side mirror assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990014971A1 (fr) 1989-06-07 1990-12-13 William Harry Meise Retroviseur
US5731900A (en) * 1991-05-24 1998-03-24 Milner; Peter James Optical reflector
US5541762A (en) * 1993-02-01 1996-07-30 Levy; George S. Antiglare optical device
DE19522900A1 (de) * 1995-06-23 1996-05-15 Daimler Benz Ag Außenspiegel für Kraftfahrzeuge
WO1998036942A1 (fr) * 1997-02-21 1998-08-27 Milner Peter J Un systeme de retrovision optique
US20090201596A1 (en) 2008-02-07 2009-08-13 Gm Global Technology Operations, Inc. Aerodynamic side mirror assembly

Also Published As

Publication number Publication date
WO2016028153A9 (fr) 2016-05-12
NL2013350B1 (nl) 2016-09-23

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