Focusing method and apparatus for light emitting device

• US 20050147945A1
• Filed: 01/05/2005
• Published: 07/07/2005
• Est. Priority Date: 03/26/2002
• Status: Abandoned Application

• Current Assignee: Jasman Asia Ltd.
• Original Assignee: Jasman Asia Ltd.
• Inventors: Lampl, John
• Application Number:
  US11/028,525
• Publication Number:
  US 20050147945A1
• Time in Patent Office: Days
• US Class Current: 434/11
• CPC Class Codes: A63F 9/02 Shooting or hurling games throwing-implements for sports or recreational use A63B65/00; throwing or projecting toys per se A63H33/18; gun simulators F41A33/00, e.g. light- or radiation-emitting guns F41A33/02; practice apparatus for gun-aiming F41G3/26, e.g. using a light-emitting device F41G3/2616; targets, target ranges, bullet catchers F41J, photo-electric hit-detector systems F41J5/02
• CPC Class Codes: F41A 33/02 Light- or radiation-emitting guns ; Light- or radiation-sensitive guns; Cartridges carrying light emitting sources, e.g. laser
• CPC Class Codes: F41J 5/02 Photo-electric hit-detector systems comprising a light-emitting device for simulating the firing of a gun F41G3/2622; detecting by optical means G01V8/10
• CPC Class Codes: F41J 5/22 the indicating means being a dispensing device
• CPC Class Codes: F41J 5/26 exploding or disintegrating when hit F41J9/16 takes precedence
• CPC Class Codes: F41J 7/04 disappearing or moving when hit exploding targets F41J5/26; exploding clay-pigeon targets F41J9/165

Abstract

A light emitting apparatus including an emitter configured to emit electromagnetic radiation of a predetermined spectrum including visible light and infrared light, and a plurality of focusing chambers, each focusing chamber including an aperture, wherein light from the emitter passes successively through at least a first of the chambers and an aperture of the first chamber, and through a second of the chambers and an aperture of the second chamber before exiting the apparatus.

Claims

1-22. -22. (canceled)

23. A light projecting component for a toy shooting device, comprising:

an emitter configured to emit electromagnetic radiation of a predetermined spectrum from the toy shooting device; and

a plurality of focusing chambers, each focusing chamber including an aperture, wherein light from the emitter passes successively through at least a first of the chambers and an aperture of the first chamber, and through a second of the chambers and an aperture of the second chamber before exiting the device.

24. The light emitting apparatus according to claim 23, wherein the emitter is disposed within the first chamber.

25. The light emitting apparatus according to claim 24, wherein the first chamber includes a first side wall increasing in diameter with increased distance from the emitter.

26. The light emitting apparatus according to claim 23, wherein the first chamber has a side wall including light-reflective material.

27. The light emitting apparatus according to claim 23, wherein the first chamber is disposed within the second chamber.

28. A light emitting apparatus according to claim 23, wherein the emitter is configured to emit infrared light.

29. A light emitting apparatus according to claim 23, wherein the apertures of the chambers are circular.

30. A light emitting apparatus according to claim 23, wherein the diameter of the aperture of the second chamber is less than an inner diameter of the second chamber.