Light Emitting Panel for Medical Applications

• US 20070195548A1
• Filed: 02/16/2007
• Published: 08/23/2007
• Est. Priority Date: 02/17/2006
• Status: Abandoned Application

• Current Assignee: BWT Property, Inc.
• Original Assignee: BWT Property, Inc.
• Inventors: Wang, Sean Xiaolu
• Application Number:
  US11/675,668
• Publication Number:
  US 20070195548A1
• Time in Patent Office: Days
• US Class Current: 362/555
• CPC Class Codes: A61N 2005/063 comprising light transmitting means, e.g. optical fibres
• CPC Class Codes: A61N 2005/0645 Applicators worn by the patient
• CPC Class Codes: A61N 2005/0652 Arrays of diodes
• CPC Class Codes: A61N 5/062 Photodynamic therapy, i.e. excitation of an agent
• CPC Class Codes: G02B 6/4298 coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers

Abstract

A light emitting panel is disclosed for medical applications including photodynamic therapy and photo bio-stimulation. The light emitting panel utilizes high intensity light emitting diodes (LEDs) as its light source and side-emitting optical fibers for light delivery.

Claims

1. A light emitting panel for medical applications including but not limited to photodynamic therapy and photo bio-stimulation, the light emitting panel comprising:

at least one high intensity light emitting diode (LED) light source; and

at least one side-emitting optical fiber coiled to form a panel-like structure, wherein the side-emitting fiber collects light from said LED light source and emits the collected light along a side surface of the side-emitting fiber.

2. The light emitting panel of claim 1, further comprising a section of end-emitting fiber between the LED light source and the side-emitting fiber for light delivery.

3. The light emitting panel of claim 2, wherein the numerical aperture and the core diameter of the side-emitting fiber and the end-emitting fiber match with the beam divergence angle and the size of the LED light source, respectively for efficient light collection.

4. The light emitting panel of claim 1, further comprising an optical diffuser to homogenize the light emitted by the side-emitting fiber;

5. The light emitting panel of claim 1, further comprising a reflection member to reflect a portion of the light emitted from the side-emitting fiber from one direction into the opposite direction.

6. The light emitting panel of claim 1, further comprising a transparent cover.