LIGHT DISPLAY APPARATUS

• US 3,686,494 A
• Filed: 01/15/1970
• Issued: 08/22/1972
• Est. Priority Date: 01/15/1970
• Status: Expired due to Term

• Current Assignee: John J. Naylor
• Original Assignee: John J. Naylor
• Inventors: Naylor, John J.
• Primary Examiner(s): Prince, Louis R.
• Assistant Examiner(s): Shoon, Frederick
• Application Number:
  US05/003,175
• Time in Patent Office: 950 Days
• Field of Search: 240/10.1,49 353/1,4
• US Class Current: 40/441
• CPC Class Codes: F21S 10/06 flashing, e.g. with rotating reflector or light source signalling lighting devices mounted on vehicles B60Q1/26
• CPC Class Codes: F21V 1/10 Rotating shades
• CPC Class Codes: Y10S 362/811 Psychedelic lighting

Abstract

Light display apparatus for providing a kaleidoscopic projection on a wall or surface. Concentric cylinders each including a rotor having a plurality of rotor blades associated therewith are caused to be rotated in opposite directions. The rotation is caused by vertically rising air heated by a light source located within the concentrically arranged cylinders. The rotor blades are oppositely pitched so as to cause the opposite rotation thereof. Preferably a stationary stator is used to initially guide the flow of the heated air. Desirably, at least a portion of each cylinder is provided with a colored design or pattern.

Claims

1. Light display apparatus for use near a wall or surface for projecting a strobe-like pattern of light thereon, comprising light source suitable for projecting an image of objects located in the vicinity thereof on a wall or surface;

a first cylinder of a material capable of transmitting light therethrough;

a first rotor having a plurality of rotor blades associated therewith, said rotor being secured axially within one end of said first cylinder;

first mounting means for rotatably mounting said first cylinder so as to enclose at least a portion of said light source and whereby said first cylinder is caused to rotate by vertically rising air heated by said light source;

a second cylinder of a material capable of transmitting light therethrough and having a diameter greater than that of said first cylinder;

a second rotor having a plurality of rotor blades associAted therewith, said rotor being secured axially within one of said second cylinder, and wherein said plurality of rotor blades are oppositely pitched relative to said plurality of rotor blades associated with said first rotor;

second mounting means for rotatably mounting said second cylinder substantially concentrically around, and enclosing at least a part of, said first cylinder and whereby said second cylinder is caused to rotate in an opposite direction from that of said first cylinder;

wherein said light source comprises a lamp having a horizontally oriented filament;

a stator having a plurality of blades associated therewith and means for mounting said stator so as to direct the flow of heated air toward said first and second rotors; and

wherein said first and second cylinders include a plurality of vertical bars of a reflecting pigment, and wherein said bars on said respective cylinders have circumferential widths subtending equal angles.

2. Light display device for use on a wall or surface for projecting a strobe-like pattern of light thereon, comprising:

a light source suitable for projecting an image of objects located in the vicinity thereof on a wall or surface;

concentrically arranged transparent cylinders surrounding said light source;

rotor means associated with each of said cylinders for rotating said cylinders such that successive cylinders are rotating in the opposite directions, said rotor means being rotated by vertically rising air heated by said light source impinging thereon, and wherein the light from said light source is directed through said cylinders and projects a pattern of light on said surface of a wall; and

wherein said cylinders including plurality of axially-extending reflecting bars on the walls thereof to form a plurality of reflecting and non-reflecting portions, and wherein said bars on said respective cylinders have circumferential widths subtending equal angles.