LED illuminated image display

• US 5,743,616 A
• Filed: 12/26/1995
• Issued: 04/28/1998
• Est. Priority Date: 12/26/1995
• Status: Expired due to Term

• Current Assignee: Lumino Designs Incorporated
• Original Assignee: Alexander Asianov, Ronald Giuliano
• Inventors: Giuliano, Ronald, Asianov, Alexander
• Primary Examiner(s): CARIASO, ALAN B
• Application Number:
  US08/578,453
• Time in Patent Office: 854 Days
• Field of Search: 40/546, 40/582, 40/583, 362/26, 362/27, 362/31, 362/251, 362/800, 362/812, 362/230, 362/231, 362/235, 362/242-245, 362/327
• US Class Current: 362/612
• CPC Class Codes: G02B 6/0021 for housing at least a part of the light source, e.g. by forming holes or recesses
• CPC Class Codes: G02B 6/0036 2-D arrangement of prisms, protrusions, indentations or roughened surfaces
• CPC Class Codes: G02B 6/0041 provided in the bulk of the light guide
• CPC Class Codes: G02B 6/006 to produce indicia, symbols, texts or the like
• CPC Class Codes: Y10S 362/80 Light emitting diode
• CPC Class Codes: Y10S 362/812 Signs

Abstract

An LED illuminated image display comprised of one or more thin, integral panels of light transmitting material (e.g., clear or translucent plastic or glass), with each panel having at least one LED imbedded in an edge thereof. Light from the LED(s) directly impinges on and is diffused through the light transmitting material and to a surface of the panel, having its refractory parameters locally disrupted, such as by being scratched or integrally etched with an image rendering. The disruption, such as by etching, with depth and spacing control, is effected to change the refraction of a portion of the panel surface whereby intensity of directly impinging LED light transmitted therethrough is made to vary, whereby an image such as of an art rendering is perceptible. Combination of panels, utilizing switching timers provides for animation displays.

Claims

1. An illuminated image display comprising at least one thin, integral solid panel of light transmitting material having a front image display surface, a rear surface opposite thereto and edge surfaces between said front and rear surfaces, wherein at least one light emitting diode (LED) is embedded in an edge of said panel, such that light from the at least one light emitting diode (LED/directly impinges on and is directly diffused through the light transmitting material and wherein a portion of the front image display surface of the panel, has its refractory parameters locally disrupted, in a controlled manner, wherein the refractory parameters are locally disrupted by etching of the display surface and wherein different parts of a desired non-random image are made to be perceptibly illuminated by varying light intensity by variation in at least one of etching depth and spacing between etchings, said etchings being configured to be in the shape of the non-random image, to change the refraction of at least one portion of the front panel surface whereby intensity of directly impinging light emitting diode (LED) light transmitted therethrough is made to vary, whereby the non-random image of a pre-determined specific configurational appearance is perceptible.

2. The illuminated image display of claim 1, wherein said rear surface is mirrored.

3. The illuminated image display of claim 1, wherein said edges are mirrored.

4. The illuminated image display of claim 2, wherein said front surface is mirrored except in said portion where the image is perceptible.

5. The illuminated image display of claim 1, wherein the thickness of the panels, as defined by the distance between the front and rear surfaces, is at least that of the thickness of a light emitting diode (LED) and not more than three times the thickness of the one or more light emitting diodes (LED) imbedded in the edges of the panel.

6. The illuminated image display of claim 1, wherein said light emitting diodes (LEDs) are powered by a battery.

7. The illuminated image display of claim 1, wherein said light emitting diodes (LEDs) are powered by a solar cell.

8. The illuminated image display of claim 1, wherein said light transmitting material is comprised of a member of the group consisting of glass and plastic.

9. The illuminated image display of claim 5, wherein said one or more light emitting diodes (LEDs) imbedded in the light transmitting material are potted in place with a light transmitting potting material.

10. The illuminated image display of claim 1, wherein said display comprises at least two light emitting diodes (LEDs) which are positionally offset from each other in different planes, relative to the display surface, and wherein said display further comprises timed switching means to provide animation effects with sequential lighting and shutting off of the at least two light emitting diodes (LEDs).

11. The illuminated image display of claim 1, wherein said display comprises at least two light emitting diodes (LEDs) which are different colored and wherein said display further comprises timed switching means to provide aesthetic effects with sequential lighting and shutting off of the at least two differently colored light emitting diodes (LEDs).

12. An illuminated image display comprising at least two panels of claim 1, superimposed on each other whereby the predetermined specific configurational appearance on each panel is separately perceptible.

13. The illuminated image display of claim 12, wherein the display further comprises timed switching means electrically connected to the light emitting diodes (LEDs) of each of the panels to provide separate timed and controlled activation of the light emitting diodes (LEDs) as desired, with separate lighted display of the configurational appearances on each of the panels.