EP0556954A1 - Anzeigevorrichtung - Google Patents

Anzeigevorrichtung Download PDF

Info

Publication number
EP0556954A1
EP0556954A1 EP93300420A EP93300420A EP0556954A1 EP 0556954 A1 EP0556954 A1 EP 0556954A1 EP 93300420 A EP93300420 A EP 93300420A EP 93300420 A EP93300420 A EP 93300420A EP 0556954 A1 EP0556954 A1 EP 0556954A1
Authority
EP
European Patent Office
Prior art keywords
disk
location
fibre
core
display
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.)
Granted
Application number
EP93300420A
Other languages
English (en)
French (fr)
Other versions
EP0556954B1 (de
Inventor
John Browne
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.)
Kapsch TrafficCom IVHS Corp
Original Assignee
Dayco Products Canada Inc
Mark IV Industries Corp
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 Dayco Products Canada Inc, Mark IV Industries Corp filed Critical Dayco Products Canada Inc
Publication of EP0556954A1 publication Critical patent/EP0556954A1/de
Application granted granted Critical
Publication of EP0556954B1 publication Critical patent/EP0556954B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/305—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being the ends of optical fibres
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
    • G09F9/375—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the position of the elements being controlled by the application of a magnetic field

Definitions

  • This invention relates to a display or indicating device using a disk having contrasting opposite sides for selective display, in a viewing direction for use in displays or indicators, and utilizing at least one optic fibre end which is displayed to the viewing location in one disk orientation, which, in most embodiments corresponds to the display in the viewing direction of the lighter side of the disk.
  • the viewing direction coincides with intended viewing locations.
  • the disk is designed to obscure a single fibre end in the other position of the disk.
  • the color of the light emitted by each fibre end will be chosen having regard to the color of the side of the disk simultaneously displayed.
  • the term 'disk' herein defines a relatively flat body defining a median plane. It need not be circular. In preferred aspects herein the disk is elongated with parallel sides and preferably rounded ends.
  • 'optic' fibre herein is included a single large fibre or a bundle of fibres arranged: at one end to receive light from a source, to conduct light to the vicinity of the disk described herein.
  • a source to conduct light to the vicinity of the disk described herein.
  • 'Forward' herein is from the device toward the intended viewing location and 'rearward' is in the opposite direction.
  • the type of display device with which the invention is concerned provides a disk or pattern area from an array of disks for viewing from a viewing location which is at the centre of possible viewing positions whose locus is a cone with its apex at the disk or pattern area.
  • the cone need not be a surface of revolution although it usually will be.
  • the subject display or indicating device will be adapted to rotate about 180° between limiting positions to display a contrasting pattern areas to the viewing location in two limiting positions of disk rotation.
  • the disk will display a light side in an ON limiting position and a dark side in an OFF limiting position and in the ON position the light side will be visible due to reflected ambient light.
  • the disk or pattern area will be adapted to allow the light from an or optic fibre to supplement the reflected ambient light.
  • a disadvantage of the apertured disk was that, if near 180° rotation was used, the fibre must be at least the radius of the disk rearward of it, meaning that the cone of light from the disk was very small or the aperture must be too large reducing the disk's ambient light reflectant area. If substantially less than 180° rotation was used special appendages to the disk had to be provided to mask the fibre to the viewer in the OFF position.
  • the described arrangement of the notch could be used because the permanent magnet, rotatable with the disk, and driven to cause such rotation, was located at one axial end of the disk, so that the drive core did not tend to interfere with disk rotation nor did automatic winding techniques used for winding the energizing coil for the drive coil, tend to interfere with the fibre or its mount, thus allowing the use of the centrally directed notch.
  • the disk dimensions may be referred to as 'axial, width and thickness' instead of the usual 'length, width and thickness' and 'axial' means, measured parallel to the disk pivotal axis.
  • This invention therefore provides a disk rotatable about 180° between two limiting position wherein it displays, respectively, its contrasting sides to a viewing location.
  • An optic fibre is located to be near the outside edge of the disk and rearward thereof in one of the disk's limiting positions and, near such edge, at one axial end of the disk.
  • the disk is shaped to obscure such fibre end (to the viewing location) in one (usually the OFF) position of the disk.
  • the 'corner' location of the cut out at one axial end of the disk and at maximum spacing from the axis has advantages beyond good spacing from the core.
  • the notch for passing the fibre mount is to be made as small and preferably as far from the center as possible since it derogates from the display area and hence the appearance of the disk.
  • the notch is preferably defined by one edge parallel to the rotational axis.
  • the other edge is preferably about 90° thereto. If the pivotal axis of the disk is at an angle to the perpendicular to the fibre optic axis the transverse edge will or may be angled to be slightly above or below 90°.
  • the disk is made longer in the axial than in the radial direction as best shown in patent '427.
  • the lighter side of the disk faces the fibre end. Reflection of the light of the fibre, back from the disk may with some disk backgrounds create random light reflections for the viewer and derogate from the appearance of the indicator or display.
  • the area on the lighter disk side, which receives the disk radiation is therefore sometimes darkened to absorb the light and absorb such random reflections. This is a reduction of the area of the bright side of the disk which may be tolerated in some applications.
  • the permanent magnet is preferably mounted, within the periphery of the disk in plan view.
  • the magnet is preferably mounted so that in each limiting position one pole of the magnet rests close to one of the drive cores.
  • the magnetic force, between the permanent magnet and the drive core will, at adequate spacing, vary inversely as the square of the distance between them, there is a lower limit to the proximity to which the magnets may be brought. This is because, with the cores used (although they are of relatively high remanence) the permanent disk magnet, at a certain proximity, will overcome the core magnetism and latch to the core. Thus the spacing at a limiting position must be sufficient to avoid this.
  • Figure 1 is a perspective view from the front of display or indicator elements in accord with the invention.
  • Figure 2 is an end, partially sectional, view of an element of Figure 1.
  • Figure 3 is a rear perspective view of a strip of display or indicating elements as shown in Figure 1.
  • Figure 4 is a partial side view of the elements of Figure 1 with some components missing.
  • Figure 5 is a partial end view showing the relation of the magnetic members.
  • Figure 6 is a sectional side view showing the relative location of the fibre end to the other components.
  • Figure 7 demonstrates the insertion of a fibre bundle in its mount.
  • Figure 8 demonstrates the geometry of the cut-out.
  • Figure 9 shows a perspective view from the front of elements each with two fibres.
  • Figure 10 and 11 show schematically the disk of Figure 9 in respectively contrasting orientations.
  • Figure 1 shows the frame 10 running longitudinally along direction L and such frame at each end, in the preferred embodiment, is provided with means defining mounting grooves 12 which allow a plurality of frames 10 to be mounted side by side on transverse coupling members received in grooves 12, to form an array.
  • the transverse direction is indicated by lines T - T.
  • An analogous method of mounting longitudinally extending display frames is shown in U.S. Pat. No. 3,942,274 dated Mar. 9, 1976 to Winrow although, in that patent, the transverse grooves are forwardly directed.
  • the disks are at an angle A to the intended viewing direction so that their pivot axes may overlap.
  • This angle would normally be between 3° and 10° but will be selected to be small enough so that the disk faces may be seen from the intended viewing location.
  • the intended viewing direction for a car driver might be at 5° above the horizontal.
  • the direction P and the direction of the optic fibres would be at a descending angle of 5° to catch the eye of the motorist while the angle A° would be (say) 3° below this.
  • the frame 10 defines transverse walls 14 at each end and located between adjacent ones of the longitudinally disposed disks 16.
  • Each transverse wall 14 is provided with a forwardly directed mounting projection 18.
  • Adjacent mounting projections 18 are provided with facing wells 20 to receive the disk 16 spindles 22.
  • the facing wells 20 of adjacent projections 20 are displaced in the forward direction to tilt the disk pivot axis to the vertical a sufficient degree so that the wells 20 on opposite sides of a projection 18 overlap in a vertical direction (that is are laterally displaced from each other relative to the row direction).
  • the wells as previously explained will normally be displaced to produce an angle A of the spindle axes to the vertical of about 3°.
  • the disk is of the type disclosed in U.S. Pat. Nos. 3,871,945 ('945 hereafter) dated Mar. 18, 1975 and (its divisional) 3,953,274 ('3274 hereafter) dated April 27, 1976, both commonly owned with this application and both naming as inventors Winrow et al.
  • the disk is thus made of 3 layers laminated together, the middle layer is apertured in the shape of and to receive a magnet of approximately the thickness of such middle layers. It will be obvious that this method of construction allows the preferred assymetric disposition of the magnet to the extent desired without inconvenience since the middle layer is merely punched at the selected location and the magnet inserted during the construction of the disk.
  • the middle layer is shaped to provide projecting spindles which form the mounting spindles of the disk.
  • each of the outer layers may have sub-layers.
  • the outer layer corresponding to the dark side is usually dark tape thereover to produce the dark outer surface on the ultimate disk.
  • the opposite side of the disk will customarily have a sub-layer of vinyl colored to the bright color required and sub-layer being an outer transparent protective casing.
  • the disk is assembled as a three layer lamination, the myler-dark covered sub-layers being applied as a single layer to one side of the central layer and the vinyl-protective covering sub-layers being applied as a single layer to the other side of the central layer.
  • the disk 14, preferably constructed as defined in U.S. Patents '945 and '3274 comprises a lamination of three layers.
  • Each of the two layers 24 and 26 may be made from two sub-layers.
  • the light side layer 24 is usually an inner sub-layer of vinyl colored for the light color designed with an outer transparent protective sub-layer.
  • the dark side layer 26 is usually a single layer of tape to provide the dark color.
  • the middle layer 28 is preferably of mylar to correspond to that of the magnet 30.
  • the mylar layer has sufficient strength that it supports the extending stub shafts 22 which are formed as an integral part of the middle layer.
  • the stub shafts 22 may be inserted in wells 20 by slightly bending the resilient (due to the resiliency of the mylar) disk to achieve insertion.
  • the middle layer 28 is provided with a slot shaped to receive the permanent magnet 30 which is preferably made of the copper-nickel-iron alloy cunife magnetized to provide a magnetic axis in the median plane of the disk transverse to the pivot axis defined by spindles 20.
  • the poles 'N' and 'S' of the permanent magnet are indicated in the drawings.
  • the recess in the middle layer 28 of the disk and the magnet therein are preferably located so that it is transverse to the pivotal axis and displaced to be all on one side of the pivotal axis at about the midway point between the stubs 22.
  • On the edge opposite the outer (here 'N' pole of the magnet) is provided a notch 36 for a purpose to be hereafter discussed.
  • the disk is preferably made longer than it is wide to take advantage of the fact that in many applications, such as bus signs, there is more available space in the vertical than in the horizontal dimension so that the height of the disks is increased to give greater visibility.
  • the shape of the disk is a compromise.
  • An oval disk terminating in semicircles at each end would give a better visual impression than a rectangle for disks collectively defining a diagonal.
  • the oval disk does not use as much of the available display area as desired. Therefore, the compromise shape with curved end and corners as shown is used.
  • Actuation for the disk to turn it to one or the other orientation is provided by a reversible magnetic field forming means, exterior to the disk and acting on the permanent magnet 30.
  • the exterior field forming means in the preferred embodiment is provided by a pair of core members 38 of high carbon, steel, having a relatively high remanence.
  • the core members 38 are fixed in position on each side of the frame and extend through bores therein to project rearwardly of the frame, as shown and forwardly to the vicinity of the disk (and magnet) locus when the disk is displaying one or the other of its contrasting sides in the viewing direction.
  • the molded plastic frame provides on each side inwardly facing abutments 40 each of which partially surrounds a core 38 adjacent the core forward end. As shown in FIG.
  • each abutment 40 has a forwardly and inwardly sloping surface which is located forward of the forward end of core member 38 and provides a pair of stops or knuckles 42 shaped to contact the disk 16 inwardly of its edge.
  • the disk contacting surface of the knuckles or stops 42 is as small as possible in humid conditions surface tension will fold the dot in place if the contact area is too large.
  • the contact is made inwardly of the disk 16 edge because the construction of the disk sometimes leaves a small (not visible) accretion of adhesive or tacky material at the edge.
  • the inwardly displaced contact does not contact such material and the risk of the disk sticking is therefore reduced.
  • a knuckle 42 stops the disk at a limiting position which is a location spaced from the core 38 end because it is preferred to use high carbon steel for the pole pieces.
  • This material although of relatively high remanence is of lower remanence than some core materials (such as vicalloy) previously used in controlling display disks. With the high carbon steel cores 38, therefore, care must be taken that the spacing between the ends of cores 38 and the permanent magnet 30 of the disk is such that the permanent magnet cannot alter the magnetic polarization of the core 38 and to cause latching of the disk. Accordingly, knuckles 42 are shaped to achieve the desired spacing which will be determined in accord with the cores 38 and magnet 30 used.
  • the disk opposite magnet 30 is provided with the notch 36 shaped to clear core 38 and abutment 40 during rotation of the disk.
  • the spacing of the core end from the magnet in stopped position is important, this is customarily achieved by measures exterior to the disk.
  • the frame 10 is maintained in a clamp while tooling associated with the clamp inserts the cores to a stop intrinsic to the tooling and clamp. The core 38 is then held in place by friction.
  • the optic fibre arrangement in the device will now be discussed.
  • the disk is preferably symmetrical about the pivotal axis.
  • the cut-out 110 is located on the same edge as notch 36 and as far as possible from the core notch 36 and is thus located at one axial end of the disk.
  • the cut-out 110 would be located in a corner of the disk and the position shown is analogous to the corner given the disks rounded ends.
  • a bore 114 in the rear wall of casing 10 is continued on each side of the rear wall in a forward boss 116 and a rearward boss 118. Since the direction of the optic fibre is quite important, the bore 114 is a close fit for the fibre ferrule.
  • the optic fibre 122 (which is itself a large bundle of tiny fibres) or may be a single large fibre particularly if of plastic with suitable optic qualities is covered by a plastic protective sheath 123 and extends from a light source, not shown, to a metal ferrule which encloses the bundle leaving its radiation output end 128 open.
  • the ferrule comprises a wider rearward cylinder 126 and a narrower forward cylinder 124, defining between them the forwardly facing shoulder 130.
  • the thinner cylinder 124 makes a friction fit with the walls of the bore 114 and the outer wall 132 of the rear boss acts as a stop for shoulder 130 to determine the location of the output fibre end 128.
  • the location of fibre end 128 is not particularly critical but (to avoid acting as a stop for the disk) it must be rearward of the area 134 (which is a mirror image of the cut-out 110 across the pivotal axis) when area 134 blocks the light from the fibre end 128 in the OFF limiting position. Fibre end 128 must be then rearward of the disk because disk magnet 30 to core 38 spacing is critical and this is determined by stops 42 acting on the disk surface.
  • the cut-out 110 is dimensioned to allow the light from the fibre end to reach the viewing location in the ON limiting position of the disk.
  • the notch area is kept to a minimum because it detracts from the appearance of the dot in the ON position.
  • the edge 136 is parallel to the pivotal axis and the edge 138 is approximately perpendicular thereto. If the display element were to have the pivotal axis perpendicular to the viewing direction a true perpendicular edge 138 would be used with the location of edge 138 (as in the preferred embodiment) chosen to clear the fibre optic and its support when travelling between limiting positions, and in the ON position to allow passage of the radiation from the optic fibre end in the desired cone about the viewing direction. (In most cases the specified cone for the optic fibre used has a 15° included angle, that is a surface of revolution 7 1/2° from the intended viewing axis).
  • the edge 138 for a cut-out in the top corner must slope at a little greater than 90° (see Figure 8) to edge 136 to clear the fibre bundle and mount, and if a lower corner fibre and cut-out were provided than the edge 138 could be slightly less than 90° to edge 136 and still clear the fibre end mount and allow passage of the radiation cone from the fibre.
  • the mirror image area 134 of the disk blocks the light from the fibre from the viewer in the OFF position of the disk. It is found that with certain finishes for the inside of frame 10 a certain amount of light from the fibre is sometimes reflected from the lighter side of the disk and then randomly reflected about the disk-wall in casing 10 so that some of this radiation reaches the viewer with a consequent derogation in the sign appearance. Accordingly the area 134 on the lighter side of the disk, is preferably provided with a blackened absorbing coating to greatly reduce reflection. For this purpose the further derogation from the disk appearance in ON position because of the blackened area is accepted. For specific purposes the blackened area may be larger or smaller than cut-out 110.
  • Cores 38 project rearwardly of the frame and mount energizing windings 46 which magnetize the cores in the desired polarity.
  • the bridging member 48 of iron having soft magnetic qualities is attached to the cores 38 rearwardly of windings 46 to complete the magnetic circuit between the cores 38.
  • Terminal posts 50 are mounted to project rearwardly from the frame corresponding to each core 38 and designed at their rearward end for connection to an electrical circuit, not shown.
  • the leads 52 to the windings 46 are preferably soldered to terminal posts 50 at the latter's rearward end.
  • the windings 46 are connected in series so that energization to the paired terminal posts will magnetize the paired cores 38 so that one core forward end is north and the other south. These polarities are simultaneously reversed to rotate the disk.
  • the windings 46, and cores 38 are preferably wound by automatic machinery requiring a minimum radius about each core for the winding head. It is such radius that requires that the boss 118 for the fibre be as far as possible from the nearest core, in this case in the 'corner' of the disk for a central core notch. This is also the reason why the cut-out 110 for the fibre cannot, in any preferred arrangement, be combined with the core notch.
  • the extended bosses 118 and 116 for the fibre ferrule are, in turn required to provide a degree of accuracy to the radiation from the optic fibre.
  • the permanent magnet 30 is preferably a relatively flat metal magnet made of cunife with its magnetic axis and location as indicated.
  • the location and orientation mean that the radially outward pole 'N' in the drawing is the driven element for operation of the device while the radially inward pole takes no material part in the operation.
  • the assymetric arrangement of the disk, as shown in FIG. 1 aids in the operation of the disk.
  • a notch and cut-out removed from one side and the magnet is displaced toward the other.
  • the weight bias in favour of the magnet displacement side together with the axial tilt assists the disk to start to turn as soon as the core is reversed to release at from a limiting position. This renders operation of the disk more certain.
  • the permanent magnet 30, in its rest limiting position of FIG. 2 has its outer edge 31 (corresponding to the N pole) within a 45° truncated core whose axis is perpendicular to the disk rest position and which expands from the core end in the direction of the disk.
  • the location of the outermost edge 31 of the permanent magnet is indicated E the boundaries of the cone, as they appear in FIG. 5 are defined as CR and CL respectively. It will be obvious that the outer edge 31 of the permanent magnet is well within this cone. The practical result is that on reversal of the core magnetism the repulsive force from the core on the magnet is more nearly perpendicular to the disk than parallel, giving a good starting torque to the disk and avoiding the necessity of providing an extra bias magnet.
  • the cores 38 are of course located so that the same effect occurs when the disk is in its opposite limiting position to that shown in FIG. 2, that is with the N end of the permanent magnet to the left and the notch to the right. Obviously the geometrical relationship will hold true where as shown the cores 38 are symmetrically disposed with respect to the pivotal axis.
  • the feature just described, and that relating to the stop for the disk inboard of the disk apply to disks used singly as well as to a plurality of disks in rows; and both features apply to disks whether or not their pivotal axes are perpendicular to the viewing direction or at a slight angle to the perpendicular.
  • the disk In operation the disk is rotatable approximately 180° between its ON position (with the notch 36 and cut-out 110 to the left in Figure 1) and OFF position with the notch and cut-out to the right in Figure 1, rotation being in the sense which moves the notch 36 and cut-out 110 farthest from the viewing location, i.e. to the rear of the pivot axis.
  • the cores are magnetized as indicated in FIG. 2 (indicated by the dotted 'N' and 'S').
  • the fibre ends 128 will each be constantly illuminated.
  • the disk would have rotated to and remained in the ON position of the middle disk in Figure 1.
  • the light from the fibre shines through cut-out 110 to capture the attention of the viewer within a cone about the intended viewing direction.
  • the lighter side of the disk will be displayed and will usually correspond to the color of the fibre radiation.
  • the opposite darker side of the disk will usually correspond to the color of the frame and associated hardware.
  • the polarity of the permanent magnet may be reversed and the operations and advantages will be the same, the positions of the disk being obtained by opposite magnetizations of the cores.
  • Figure 9 shows a second optic fibre with end 128A with supporting boss 116A (aligned rear boss is not shown) the second fibre has a location at the opposite axial end of the disk and the opposite side of the pivotal axis from fibre 128 with supporting bosses 116A (rear boss 118 is not shown) from bosses 116, 118 with an additional cut-out 110A to clear the fibre bundle and boss 116A.
  • the disk will display one fibre 128 in one limiting position and the other fibre 128A in the other limiting position.
  • one fibre 128 and its co-displayed side 24 may display red to the viewer and in the other disk orientation ( Figure 11) the other fibre 128A and its co-displayed disk side 26 green.
  • the array background will have whatever color is most suitable.
  • the electromagnetic drive will be the same as that described in relation to Figure 1.
  • the application has discussed the use of the disk with a 'corner' notch for an optic fibre in terms of the preferred disk form of patent '427.
  • the axes may be parallel to the array instead of slanted as in patent '427.
  • the axes may bear any orientation.
  • the magnetic drive may be different, for example on a magnet or the end of the disk as in patent '832.
EP19930300420 1992-02-18 1993-01-21 Anzeigevorrichtung Expired - Lifetime EP0556954B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US837474 1986-03-07
US83747492A 1992-02-18 1992-02-18

Publications (2)

Publication Number Publication Date
EP0556954A1 true EP0556954A1 (de) 1993-08-25
EP0556954B1 EP0556954B1 (de) 1996-10-16

Family

ID=25274551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930300420 Expired - Lifetime EP0556954B1 (de) 1992-02-18 1993-01-21 Anzeigevorrichtung

Country Status (4)

Country Link
EP (1) EP0556954B1 (de)
JP (1) JPH0627893A (de)
CA (1) CA2087234C (de)
DE (1) DE69305382T2 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0731435A1 (de) * 1995-03-08 1996-09-11 Lite Vision Corporation Magnetisch betriebene Anzeigevorrichtung
DE19635092A1 (de) * 1995-09-18 1997-03-20 Mark Iv Ind Ltd Elektromagnetischer Lichtverschluß und Abdeckung
WO1997033266A1 (en) * 1996-03-05 1997-09-12 Mark Iv Industries Limited Display device and array
FR2745937A1 (fr) * 1996-03-05 1997-09-12 Mark Vi Ind Limited Element d'affichage, reseau et colonne d'elements d'affichage, et indicateur de destination d'un vehicule forme de tels elements d'affichage
DE19614040A1 (de) * 1996-04-10 1997-10-16 Hans Damm Anzeigevorrichtung
WO1999017267A1 (de) * 1997-09-30 1999-04-08 Transit-Media Gmbh Systemtechnik Für Fahrgastinformation Montage von kippsegmentanzeigen hinter scheiben
WO1999033048A1 (de) * 1997-12-22 1999-07-01 Infosystems Gmbh Visuelle Und Akustische Systeme Für Die Verkehrstechnik Punkt-matrix-element für eine punkt-matrix-anzeige

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5898418A (en) * 1995-03-06 1999-04-27 Kao; Pin-Chi Magnetically operated display
JPH08303216A (ja) * 1995-05-08 1996-11-19 Fuji Oozx Inc 内燃機関用タペットの製造方法
US5771616C1 (en) * 1996-07-19 2001-07-03 Mark Iv Ind Ltd Display device with disk and led
US5809675A (en) * 1997-05-06 1998-09-22 Mark Iv Industries Ltd. Board for mounting display element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158983A (en) * 1984-05-14 1985-11-20 Nei Canada Ltd Magnetically operated, pivotally mounted, display discs
EP0401980B1 (de) * 1989-06-09 1995-07-12 Mark IV Industries Limited Anzeigeelement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158983A (en) * 1984-05-14 1985-11-20 Nei Canada Ltd Magnetically operated, pivotally mounted, display discs
EP0401980B1 (de) * 1989-06-09 1995-07-12 Mark IV Industries Limited Anzeigeelement

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0731435A1 (de) * 1995-03-08 1996-09-11 Lite Vision Corporation Magnetisch betriebene Anzeigevorrichtung
DE19635092A1 (de) * 1995-09-18 1997-03-20 Mark Iv Ind Ltd Elektromagnetischer Lichtverschluß und Abdeckung
WO1997033266A1 (en) * 1996-03-05 1997-09-12 Mark Iv Industries Limited Display device and array
FR2745937A1 (fr) * 1996-03-05 1997-09-12 Mark Vi Ind Limited Element d'affichage, reseau et colonne d'elements d'affichage, et indicateur de destination d'un vehicule forme de tels elements d'affichage
DE19619814A1 (de) * 1996-03-05 1997-09-18 Mark Iv Ind Ltd Anzeige-Vorrichtung und -Feld
ES2122931A1 (es) * 1996-03-05 1998-12-16 Mark Iv Ind Ltd Dispositivo expositor y serie.
DE19619814C2 (de) * 1996-03-05 2002-05-08 Mark Iv Ind Ltd Anzeigeeinrichtung
DE19614040A1 (de) * 1996-04-10 1997-10-16 Hans Damm Anzeigevorrichtung
WO1999017267A1 (de) * 1997-09-30 1999-04-08 Transit-Media Gmbh Systemtechnik Für Fahrgastinformation Montage von kippsegmentanzeigen hinter scheiben
WO1999033048A1 (de) * 1997-12-22 1999-07-01 Infosystems Gmbh Visuelle Und Akustische Systeme Für Die Verkehrstechnik Punkt-matrix-element für eine punkt-matrix-anzeige

Also Published As

Publication number Publication date
DE69305382T2 (de) 1997-04-03
EP0556954B1 (de) 1996-10-16
JPH0627893A (ja) 1994-02-04
DE69305382D1 (de) 1996-11-21
CA2087234C (en) 1998-12-01
CA2087234A1 (en) 1993-08-19

Similar Documents

Publication Publication Date Title
CA2013663C (en) Display element with notched disk
CA1240148A (en) Display with tilted disk axes
EP0556954B1 (de) Anzeigevorrichtung
US4531318A (en) Display or indicating element with bent core
US5050325A (en) Display indicator and reed switch
JP3199900B2 (ja) シヤツター
JP2931315B2 (ja) 電磁気表示装置
JP2001343914A (ja) 可変イメージ表示体
US3537197A (en) Lever operated display device
US5021773A (en) Fibre optic display device
US4914427A (en) Matrix display system and method
GB2059659A (en) Display device with magnetic stop
CA1307397C (en) High speed display device
HU223702B1 (hu) Változtatható állapotú kijelzőelem, továbbá kijelzőelem-mátrix, valamint eljárás a kijelzőelem működtetésére
US4616221A (en) Electromagnetic display
JPH0143742Y2 (de)
JPS6035071B2 (ja) ディスプレイ装置
JPS59146084A (ja) 表示装置
JPH05213097A (ja) 車両用表示装置
JPH08221010A (ja) 情報表示装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19931206

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MARK IV INDUSTRIES LIMITED

17Q First examination report despatched

Effective date: 19950425

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

ITF It: translation for a ep patent filed

Owner name: DOTT. FRANCO CICOGNA

REF Corresponds to:

Ref document number: 69305382

Country of ref document: DE

Date of ref document: 19961121

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040204

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040205

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040210

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050121

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050802

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050930

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST