EP0426680A1 - Procede et dispositif pour l'eclairage d'images disposees parallelement au sens de deplacement de l'observateur - Google Patents

Procede et dispositif pour l'eclairage d'images disposees parallelement au sens de deplacement de l'observateur

Info

Publication number
EP0426680A1
EP0426680A1 EP19890905459 EP89905459A EP0426680A1 EP 0426680 A1 EP0426680 A1 EP 0426680A1 EP 19890905459 EP19890905459 EP 19890905459 EP 89905459 A EP89905459 A EP 89905459A EP 0426680 A1 EP0426680 A1 EP 0426680A1
Authority
EP
European Patent Office
Prior art keywords
images
viewer
illuminating
sensor
capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19890905459
Other languages
German (de)
English (en)
Inventor
Pal Vaskuti
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0426680A1 publication Critical patent/EP0426680A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/22—Advertising or display means on roads, walls or similar surfaces, e.g. illuminated
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B25/00—Viewers, other than projection viewers, giving motion-picture effects by persistence of vision, e.g. zoetrope

Definitions

  • the invention relates to a method and a device for aligning images arranged in parallel with the direction of progress of the viewer.
  • the method according to the invention and the device used for implementation are expediently used to illuminate images or series of images arranged in a tunnel, and in such a way that the images e.g. are arranged on a stationary wall and, viewed from an object moving in front of the wall and traveling in the tunnel, merge into a motion picture (cinema picture).
  • the device or arrangement according to the invention can also be designed in such a way that both the image and the viewer move, with the relative speed of the viewer and the object carrying the image causing the rows of images to merge into a cinema film is achieved.
  • the first case we assume a row of pictures arranged on the wall of a tunnel, which is viewed from a vehicle, for the second case two vehicles traveling side by side, from which one carries the pictures and the other sits the viewer.
  • the object of the invention was to develop a method and a device suitable for realizing the method, which are suitable for viewing stationary or moving, parallel rows of images of a moving object, suitably a vehicle, and the image row thus viewed as a cinema film appears.
  • our invention relates to a method for illuminating images arranged in parallel — expediently in a tunnel; the essence of the method according to the invention is that the images are illuminated in a controlled manner by an object which moves relative to the images and which receives the viewer, and in such a way that the individual images merge into a motion picture film, the maximum dimension of the images in the Direction of movement is determined as follows:
  • v the relative speed difference between the object carrying the image and the object carrying the observer
  • n the critical fusion frequency
  • illumination time is selected within the range 100 ⁇ sec - 10 msec, or, if appropriate, a continuous illumination is selected for the duration in which the two objects pass each other.
  • the device for implementing the method according to the invention also forms the subject of the invention.
  • the device or arrangement contains the images which are arranged in parallel with one another, the sensors arranged in the vicinity of the images for the perception of the object carrying the viewer, and furthermore are in contactless contact with the mentioned perceptual arrangement on the object carrying the viewer see sensors or the sensor activating signal elements contain, the sensor being connected to a unit illuminating the image.
  • the signaling element activating the sensor is arranged on one object, for example on the vehicle, while the sensor itself is arranged on another object, for example on the wall, and is connected to the lighting element, for example by means of an actuating circuit the actuator of a flash tube connected; the other output of the actuating circuit is connected to the control input of a controlled switching element, advantageously a thyristor; the controlled switching element connects to a rectifier and a storage element, for example a capacitor, on the other hand it is connected to the power capacity of the lighting element.
  • a controlled switching element advantageously a thyristor
  • the controlled switching element connects to a rectifier and a storage element, for example a capacitor, on the other hand it is connected to the power capacity of the lighting element.
  • a further advantageous embodiment of the device according to the invention is designed in such a way that the control circuit is made up of two cross-locked monoflops, one input of the first monoflop being connected to one controlled switching element, the other monoflop being connected to the other switching element - which is connected to the lighting means .
  • the invention can also be used advantageously where an optical grating is arranged between the viewer and the images.
  • FIG. 1 shows an example of an arrangement
  • FIG. 2 shows the diagram of the device illuminating the images
  • FIG. 3 shows the timing diagram of the control signals of the unit according to Figure 2
  • Figure 4 shows an example of the control circuit.
  • FIG. 1 shows the images 1, 2... N arranged in parallel with one another and the sensor elements 4 arranged underneath, as well as an object receiving the viewer, in our case a railroad car that contains the signal elements 3.
  • one signal element 3 is provided under the individual windows.
  • the critical fusion frequency should be 20 frames / sec here. In this case, the maximum size of the images results
  • the measure the width of the image in the direction of travel should be 0.8 m.
  • the height is determined by the visibility.
  • the pictures 1,2 ... n must be illuminated in such a way that their perception is guaranteed.
  • Exposure frequency is controlled with the signal transmitter arranged on the vehicle, in our example with signal element 3.
  • a flash lamp or any flash tube is sufficient for lighting.
  • Figure 2 shows the diagram of a possible embodiment of the actuating device or the lighting unit.
  • the images 1,2 ... n are arranged in a railway tunnel or in a metro tunnel at a mutual distance of 1 m so that the image width is 0.8 m and the motion picture of these images is combined is set.
  • a sensor 4 is arranged above or below the individual images 1, 2 ... n, which in the embodiment shown here, which serves as an example, switch on the lighting unit built into the tunnel wall and illuminate the images 1, 2 ... n from behind .
  • Each individual picture 1, 2 ... n has a sensor and lighting units in the same number. So that the image just lying on the viewer is exposed, the lighting is controlled from the train carrying the viewer with the signal element 3.
  • the signal element 3 activates the sensor 4 for a predetermined time in the range between 100 ⁇ sec and 10 msec, as a result of which the image is illuminated.
  • the sensor 4 is a Steuerst rom Vietnamese 5, an output of the induction L belonging to the flash tube 6 and the control element, in our example the thyristor Th2, which switches the circuit containing the capacitor C3, starts .
  • the other output of the control circuit 5 is connected via the transformer Tr of the cathode and the control input (gate) of the thyristor Th1, more precisely, connected to the resistor R1 connected to the cathode.
  • the supply voltage of the control circuit 5 and the entire lighting unit is generated via the rectifier D1, which is a two-way rectifier and whose output is connected to a high-performance capacitor C1 and the anode of the thyristor Th1.
  • the capacitor C2, as the power capacity of the flash tube 6, is connected to the resistor R2.
  • the value of the capacitor C1 is 600 ⁇ F, that of the C247 ⁇ F.
  • FIG. 3 shows the start pulse that arrives from the control circuit 5, and the time function of the signals controlling the two thyristors Th1 and Th2 is also illustrated.
  • the two thyristors Th1 and Th2 must not be simultaneous ie switched on in the same period of time, this is ensured by the internal locking of the control circuit, an example of which is shown in FIG. 4.
  • the control circuit contains two monoflops MF1 and Mf2, one input of monoflop MF2 receiving the trigger signal and output O actuating thyristor Th2.
  • the output O is connected to the input R of the second monoflop MF1, while the output of the monoflop MF1 is connected to the input R of the monoflop MF2, the output of the monoflop MF1 connects to the thyristor Th1.
  • the device works as follows:
  • the sensing element 4 emits a signal to the control circuit 5, which on the one hand starts the thyristor Th1, and on the other hand starts the thyristor Th1 after 100 ⁇ sec - 10 msec, which in turn is a part of that in the capacitor C1 stored energy passes to the capacitor C2.
  • the actuation unit and the individual elements can also be implemented in a different arrangement.
  • the signal element can be arranged either on one or on the other object, it. does not necessarily have to be present on the object receiving the viewer, likewise the sensor 4 can be attached to the lighting unit either on one or the other object.
  • the senor 4 is a transmitter and receiver, which is activated by a light reflecting strip as a signal element 3. Any contactless optical or magnetic sensor can be used for this purpose. So that the viewer sees an exposed image at the given moment, we can choose between the viewer and the Insert an optical grating into the picture, the exposure time being selected until the viewer of the series of pictures comes off. Another finding is that the fusion frequency does not necessarily have to be in the range between 16 and 24 frames / sec, 10 frames / sec are sufficient.
  • the method according to the invention can be expanded to existing systems in a relatively cost-effective manner; the costs only become apparent when the components are purchased.
  • the solution can be advantageously used to issue warning signals or displays if the images are e.g. are not arranged in a tunnel, but along a country road.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

L'invention concerne un procédé pour l'éclairage d'images disposées parallèlement, de préférence dans un tunnel. Le principe de l'invention consiste en ce que des images soient éclairées par un objet se déplaçant par rapport à ces images et à l'intérieur duquel se trouve l'observateur, de telle manière que les images fusionnent pour former un film cinématographique, ces images étant disposées, dans le sens du déplacement, selon un espacement maximum "a", avec a = v/n, v étant la différence de vitesse relative entre l'objet à l'intérieur duquel se trouve l'observateur et l'objet portant les images et n la fréquence de fusion critique. L'invention concerne également un dispositif pour la mise en oeuvre du procédé. L'invention a également pour principe qu'il existe des images disposées parallèlement les unes par rapport aux autres (1, 2, ..., n) et que des capteurs (4) soient disposés à proximité de ces images et qu'il soit prévu, sur l'objet à l'intérieur duquel se trouve l'observateur, des éléments de signaux (3) activant les capteurs (4) et que ces éléments soient reliés à une unité éclairant les images (1, 2, ..., n).
EP19890905459 1989-05-09 1989-05-09 Procede et dispositif pour l'eclairage d'images disposees parallelement au sens de deplacement de l'observateur Withdrawn EP0426680A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/HU1989/000020 WO1990013845A1 (fr) 1989-05-09 1989-05-09 Procede et dispositif pour l'eclairage d'images disposees parallelement au sens de deplacement de l'observateur

Publications (1)

Publication Number Publication Date
EP0426680A1 true EP0426680A1 (fr) 1991-05-15

Family

ID=10980842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890905459 Withdrawn EP0426680A1 (fr) 1989-05-09 1989-05-09 Procede et dispositif pour l'eclairage d'images disposees parallelement au sens de deplacement de l'observateur

Country Status (3)

Country Link
EP (1) EP0426680A1 (fr)
JP (1) JPH03505926A (fr)
WO (1) WO1990013845A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020003510A1 (en) * 1998-01-16 2002-01-10 Tetsu Shigetomi Image display apparatus and method for vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9013845A1 *

Also Published As

Publication number Publication date
JPH03505926A (ja) 1991-12-19
WO1990013845A1 (fr) 1990-11-15

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