EP1397724A2 - Unite d'affichage d'images multiples presentant un mecanisme de deplacement de support - Google Patents

Unite d'affichage d'images multiples presentant un mecanisme de deplacement de support

Info

Publication number
EP1397724A2
EP1397724A2 EP02752098A EP02752098A EP1397724A2 EP 1397724 A2 EP1397724 A2 EP 1397724A2 EP 02752098 A EP02752098 A EP 02752098A EP 02752098 A EP02752098 A EP 02752098A EP 1397724 A2 EP1397724 A2 EP 1397724A2
Authority
EP
European Patent Office
Prior art keywords
medium
ring gear
pinion gear
display unit
frame
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Withdrawn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
EP02752098A
Other languages
German (de)
English (en)
Inventor
David Karzmer
Jim Vitullo
Harry Steck
Robert Johnson
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.)
Captiva Hong Kong Ltd
Original Assignee
Captiva Hong Kong Ltd
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 Captiva Hong Kong Ltd filed Critical Captiva Hong Kong Ltd
Publication of EP1397724A2 publication Critical patent/EP1397724A2/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Withdrawn legal-status Critical Current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
    • G09F11/00—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position
    • G09F11/30—Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position the display elements being fed one by one from storage place to a display position

Definitions

  • the invention relates generally to multi-image display units, and particularly to multi- image display units with a gear assembly for raising and lowering an image carrying medium.
  • Image display devices of the type disclosed in JP HEI 2[1990] - 211437, US Pat. No. 6,219,948 and US Pat. No. 6,226,906 are known in the art.
  • an image carrying medium having at least two images interlaced and placed thereon in a manner known in the art e.g., US Pat. No. 5,100,330 and US Pat. No. 5,488,451, each of which is incorporated herein by reference
  • JP 211437 discloses a cam mechanism for such movement and furthermore discloses several rack and pinion or feed screw mechanisms, each of which comprises a motor with the ability to change rotational direction and a means for identifying a proper time to switch such direction.
  • US 6,219,948 and US 6,226,906 both disclose a cam attached to a mono-directional battery-powered drive.
  • the present invention provides a multi-image display unit with a gear assembly for effectuating movement of the image carrying medium.
  • a display unit having a frame, a wall of lenticular lenses, an image carrying medium, an electric motor and a gear assembly for imparting reciprocal vertical motion to the image carrying medium.
  • the gear assembly has a pinion gear, a guided ring gear and a frame, whereby the pinion gear and the frame trap the guided ring gear, and whereby rotation of the pinion gear makes the guided ring gear orbit around the pinion gear.
  • the vertical motion component of the guided ring gear's orbit imparts motion to the image carrying medium.
  • a two-sided display unit has two lenticular lens walls and an image carrying medium with images on both sides of the medium.
  • An advantage of the current invention is that rotational motion provided by a motor may be translated into linear motion by use of a gear assembly rather than by use of a cam or rack and pinion or feed screw mechanisms. Still further advantages of the current invention will become apparent to those of ordinary skill in the art upon reading and understanding the following detailed description of the preferred embodiments.
  • Figure 1 is an exemplary front view of a display unit in accordance with one embodiment of the current invention.
  • Figure 2 is an exemplary cross-sectional view of a display unit in accordance with one embodiment of the current invention.
  • Figure 3 is an exemplary cross-sectional view of a display unit in accordance with one embodiment of the current invention.
  • Figure 4 is an exemplary exploded view of a medium displacing mechanism in accordance with one embodiment of the current invention.
  • Figure 5 is an exemplary perspective view of a guided ring gear in accordance with one embodiment of the current invention.
  • Figure 6 is an exemplary perspective view of a guided ring gear in accordance with one embodiment of the current invention.
  • Figure 7 is an exemplary perspective view of another guided ring gear in accordance with one embodiment of the current invention.
  • Figure 8 is an exemplary perspective view of yet another guided ring gear in accordance with one embodiment of the current invention.
  • Figure 9 is an exemplary perspective view of still another guided ring gear in accordance with one embodiment of the current invention.
  • Figure 10 is an exemplary cross-sectional view of a medium displacing mechanism in accordance with one embodiment of the current invention.
  • FIG. 1 Illustrated in Figure 1 is an exemplary multi-image display unit in accordance with one embodiment of the present invention.
  • the display unit has a frame 110 which encloses a front lenticular lens wall 115 and receives an image carrying medium 135 behind the lenticular lens wall.
  • Frame 110 is composed of any suitable material, including but not limited to light-weight and durable plastic.
  • Frame 110 is suitably shaped and sized to receive front lenticular lens wall 115 and image carrying medium 135.
  • front lenticular lens wall 115 has a lenticular front face 215 and a flat rear face 220.
  • Lenticular front face 215 has an array of lenticular lenses 120.
  • Lenticular lenses 120 are shaped, sized and spaced as known in the art (e.g., US Pat. No. 6,226,906 and US Pat. No. 6,219,948 and the references cited therein) so that when an interlaced image as also known in the art is vertically displaced behind the array of lenticular lenses, a stationary viewer viewing the array of lenses sees a consecutive series of individual, changing images.
  • image carrying medium 135 has a front face 140 upon which at least two interlaced images 155 reside.
  • a first image of the letter "A” is interlaced with a second image of the letter "B" in a manner known in the art (e.g., US Pat. No. 5,100,330 and US Pat. No. 5,488,451 and US Pat. No. 6,226,906 and US Pat. No. 6,219,948).
  • Image carrying medium is composed of any suitable light weight material, including film.
  • Interlaced images are composed of any suitable material and placed upon image carrying medium by any suitable method. While this example illustrated two interlaced images, it will be understood that any suitable number of images may be interlaced.
  • Frame 110 has a back wall 210 and includes a lenticular lens wall 115 which has a lenticular front face 215 and a flat rear face 220.
  • Back wall 210, flat rear face 220 and the first and second side walls (not illustrated in this cross-sectional view) define cavity 225 within which image carrying medium 135 is disposed.
  • Front face 140 of image carrying medium 135 faces the flat rear face 220 of the lenticular lens wall 115 and is spaced a distance from the rear face at most equaling a focal length of a lenticular lens of the lenticular front face. It will be understood that front face 140 may be any suitable distance from flat rear face 220 so that viewing by a stationary viewer is facilitated.
  • the bottom edge 150 of the image carrying medium rests on a component of medium displacing mechanism 170. As illustrated further in Figures 4 and 10, bottom edge 150 rests upon guided ring gear 415, which is captured between frame 420 and pinion gear 410. Bottom edge 150 is further captured in slot 460 defined by frame 420.
  • Medium displacing mechanism 170 is coupled to electric motor 230 which is coupled to power supply 235.
  • Electric motor 230 is any suitable motor for providing rotational motion, including but not limited to a battery-powered DC drive. An example of such a batter-powered DC drive is a generally available clock motor.
  • Power supply 235 is any suitable power supply for electric motor 230, including but not limited to a battery or a series of batteries to power a DC drive.
  • Image carrying medium 135 is received into frame 110 through a slot (not shown) and behind lenticular lens wall 115.
  • Frame further has a first 125 and a second 130 side wall positioned behind the lenticular lens wall 115 spaced apart a distance illustrated by 160.
  • Image carrying medium 135 has a width 165 which is defined as slightly less in magnitude than width 160, whereby image carrying medium 135 may slide freely up and down between first 125 and second 130 walls, while both horizontal movement or rotational movement of image carrying medium 135 is restricted.
  • Lenticular lens wall 115, first 125 and second 130 side wall and back wall 210 define a cavity 215 within which image carrying medium 135 resides and is vertically displaced.
  • Image carrying medium further has a bottom edge 145.
  • the bottom edge (illustrated as 150 in the cut-out of Figure 1) of the image carrying medium rests upon medium displacing mechanism 170. While this embodiment describes the image carrying medium as "resting" upon a medium displacing mechanism, it will be understood that image carrying medium may only indirectly abut medium displacing mechanism, so long as motion of the medium displacing mechanism is translated to the image carrying medium.
  • medium displacing mechanism 170 moves, the vertical component of this movement is transferred to image carrying medium 135, which reciprocatingly moves vertically up and down. Any horizontal movement of medium displacing mechanism which is transferred to the image carrying medium is negated by side walls 125 and 130.
  • frame 110 encloses a first lenticular lens wall 310 and a second lenticular lens wall 315.
  • Each of the first and second lenticular lens walls has a lenticular front face and a flat rear face and are disposed so that the flat rear face of each is facing each other. In this position, the lenticular front face of each lenticular lens wall faces outward from the frame in opposite directions.
  • the flat rear faces of each lenticular lens wall and the first and second side walls define a cavity 320 for receiving image carrying medium 135.
  • Image carrying medium 135 here has a first 325 and a second 330 face, each of which has at least two interlaced images thereupon.
  • the bottom edge of the image carrying medium 135 rests upon a component of the medium displacing mechanism 170, which is coupled to motor 230 which is powered by power supply 235.
  • the medium displacing mechanism 170 vertically displaces image carrying medium 135 in cavity 320 behind both lenticular lens walls, a stationary viewer on either side of the display unit may view consecutively changes images.
  • image carrying medium 135 is vertically displaced in a cavity within the frame by the medium displacing mechanism.
  • the medium displacing mechanism converts rotational motion provided by the electric motor into at least reciprocal vertical motion which is imparted to the image carrying medium.
  • medium displacing mechanism has a pinion gear 410, a guided ring gear 415 and a frame 420.
  • Pinion gear 410 is attached to shaft 440 which protrudes from motor 230.
  • motor 230 is mounted on a printed circuit board 435 and shaft 440 protrudes through a hole in the printed circuit board to attach to pinion gear 410.
  • Pinion gear 410 has external radial teeth 425 and a concentric cylindrical hub 430.
  • the cylindrical hub 430 extends axially and concentrically on the side of the pinion gear opposite motor 230.
  • Shaft 440 is attached concentrically to pinion gear 410 to provide rotary motion to pinion gear 410.
  • guided ring gear 415 has a ring gear 510 and an appended guide portion 515.
  • Ring gear 510 has a hollow 520 and internally extending radial teeth 525.
  • Appended guide portion 515 has a first cylindrical pin 530 which extends concentrically into hollow 520 of ring gear 510.
  • Appended guide portion 515 further has a third cylindrical pin 615 that extends from the side of the appended guide portion 515 opposite the position of the ring gear 510 and concentric with first cylindrical pin 530.
  • appended guide portion further has a second cylindrical pin 610 on the same side as the third cylindrical pin.
  • frame 420 has first 445 and second 450 outside ends which partially define a vertical slot 460 for receiving the bottom of the image carrying medium.
  • frame 420 has a pin channel 465 on an interior back wall.
  • frame 420 has an oval depression on an interior back wall (illustrated in Figure 10).
  • the guided ring gear 415 is placed over the pinion gear 410 so that the external teeth 425 of the pinion gear 410 mesh with the internal teeth 525 of the guided ring gear 415. Simultaneously, the central cylindrical hub 430 of the pinion gear 410 contacts the first cylindrical pin 530 of the guided ring gear 415. Pinion gear 410, central cylindrical hub 430, external teeth 425, guided ring gear 415, first cylindrical pin 530 and internal teeth 525 are suitably sized, shaped and spaced so that guided ring gear 415 frictionally fits over pinion gear 410. Frame 420 is positioned over the guided ring gear 415. Guided ring gear 415 is thus captured on one side by pinion gear 410 and on the other side by frame 420.
  • the motor When motor 230 is activated, the motor causes shaft 440 to rotate.
  • the rotating shaft causes the pinion gear 410 to rotate.
  • the pinion gear As the pinion gear rotates, its teeth mash with the internal teeth of the guided ring gear 415.
  • the guided ring gear 415 is captured between the frame 420 and the pinion gear 410 (and, in an embodiment, particle circuit board 435), as the pinion gear rotates, the guided ring gear orbits around the pinion gear.
  • the orbit of the guided ring gear has both a vertical component and a horizontal component. The vertical component is imparted to the image carrying medium by the image carrying medium at least indirectly abutting the guided ring gear.
  • any horizontal motion imparted to the image carrying medium from the horizontal component of the guided ring gear's orbit is at least partially restricted by second cylindrical pin 610 on guided ring gear 415.
  • Second pin 610 is received in pin channel 465 of frame 420.
  • Pin channel 465 is disposed in an interior wall of the frame 420 which faces guided ring gear 415 and sized to receive second pin 610 and allow vertical movement of the pin while restricting horizontal movement of the second pin 610.
  • any horizontal motion imparted to the image carrying medium from the horizontal component of the guided ring gear's orbit is at least partially restricted by third cylindrical pin 615 on guided ring gear 415.
  • Third cylindrical pin 615 is received in oval depression 1010 of frame 420.
  • Oval depression 1010 is disposed in an interior wall of the frame 420 which faces guided ring gear 415 and sized to receive third cylindrical pin 615 and allow movement of the third cylindrical pin 615 only to the extent of the shape of the oval depression 1010.
  • any horizontal motion imparted to the image carrying medium from the horizontal component of the guided ring gear's orbit is at least partially restricted by outside ends 445 and 450 of frame 420.
  • appended guide portion 515 has a first 535 and a second 540 sides, the width between which is defined as slightly less than the distance between outside ends 445 and 450.
  • third cylindrical pin 615 takes the shape of a three-dimensional parallelogram extending from the guided ring gear.
  • the three- dimensional parallelogram is a triangular extension 710, and the image carrying medium rest upon the point at one of the angles of the triangular extension. While a triangular extension is illustrated, it will be understood that any suitable shape may be used.
  • third cylindrical pin 615 takes the shape of a bar 810, where the image carrying medium rests upon the flat top of the bar.
  • the third cylindrical pin 615 is eliminated, and the outer periphery 910 of the ring gear 410 is extended over the appended guide portion 515.
  • the image carrying medium rests upon the outer periphery 910 of the guided ring gear.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Stereoscopic And Panoramic Photography (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

La présente invention concerne une unité d'affichage d'images multiples permettant d'afficher des images entrelacées sur un support porteur d'images, ladite unité de visualisation possédant un cadre présentant une paroi de verre lenticulaire frontale et un moteur couplé à un moyen de déplacement de support permettant de conférer un mouvement vertical alternatif au support porteur d'image à l'intérieur du cadre et derrière la paroi lenticulaire frontale. Ledit moyen de déplacement de support peut comprendre un engrenage à pignons, un engrenage annulaire guidé et un châssis.
EP02752098A 2001-06-22 2002-06-24 Unite d'affichage d'images multiples presentant un mecanisme de deplacement de support Withdrawn EP1397724A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US30017301P 2001-06-22 2001-06-22
US300173P 2001-06-22
PCT/US2002/020277 WO2003001484A2 (fr) 2001-06-22 2002-06-24 Unite d'affichage d'images multiples presentant un mecanisme de deplacement de support

Publications (1)

Publication Number Publication Date
EP1397724A2 true EP1397724A2 (fr) 2004-03-17

Family

ID=23158011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02752098A Withdrawn EP1397724A2 (fr) 2001-06-22 2002-06-24 Unite d'affichage d'images multiples presentant un mecanisme de deplacement de support

Country Status (4)

Country Link
EP (1) EP1397724A2 (fr)
AU (1) AU2002349787A1 (fr)
CA (1) CA2448224A1 (fr)
WO (1) WO2003001484A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2393558A (en) * 2002-09-17 2004-03-31 Signwaves Ltd Multi-image dislpay with carrier displacing system
CA2445368A1 (fr) * 2003-10-17 2005-04-17 Michael Summerlin Dispositif d'affichage d'images lenticulaires

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562941A (en) * 1968-07-25 1971-02-16 Daylight Animation Inc Lenticulated display device
NO126406L (fr) * 1969-01-27
IL121005A (en) * 1997-06-05 2000-02-17 M V T Multi Vision Tech Ltd Display units
US6219948B1 (en) * 1997-06-05 2001-04-24 M.V.T. Multi Vision Technologies Ltd. Display unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03001484A3 *

Also Published As

Publication number Publication date
WO2003001484A2 (fr) 2003-01-03
WO2003001484A3 (fr) 2003-11-06
AU2002349787A1 (en) 2003-01-08
CA2448224A1 (fr) 2003-01-03

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