Balanced blue spectrum therapy lighting

• US 7,015,636 B2
• Filed: 10/17/2003
• Issued: 03/21/2006
• Est. Priority Date: 10/23/2002
• Status: Expired due to Fees

• Current Assignee: Charles Bolta
• Original Assignee: Charles Bolta
• Inventors: Bolta, Charles
• Primary Examiner(s): Patel, Vip
• Application Number:
  US10/688,009
• Publication Number:
  US 20040093045A1
• Time in Patent Office: 886 Days
• Field of Search: 313483-487, 313/498, 313/503, 313/506, 252/301.33
• US Class Current: 313/487
• CPC Class Codes: A61N 2005/0652 Arrays of diodes
• CPC Class Codes: A61N 2005/0655 Tubes
• CPC Class Codes: A61N 5/0618 Psychological treatment
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/20 Controlling the colour of the light

Abstract

A balanced blue spectrum therapy lighting fixture is provided. The lighting fixture comprises a light source and a mixture of blue light and white light within the light source having a range between approximately 90% 420–490 nm blue light and approximately 10% white light to approximately 10% 420–490 nm blue light and approximately 90% white light.

Claims

1. A balanced blue spectrum therapy lighting fixture, the lighting fixture comprising:

a light source; and

a mixture of blue light and white light within the light source having a range between approximately 90% 420–

490 nm blue light and approximately 10% white light to approximately 10% 420–

490 nm blue light and approximately 90% white light.

2. The lighting fixture of claim 1 wherein the blue light is 50% 420–

490 mn blue light and 50% white light.

3. The lighting fixture of claim 1 and further comprising:

an array of fluorescent bulbs or L.E.D.'"'"'s, the bulbs and L.E.D.'"'"'s containing blue light and white light.

4. The lighting fixture of claim 1 and further comprising:

a single bulb with one side emitting blue light and the other side emitting white light thereby emitting a balanced light.

6. The lighting fixture of claim 1 and further comprising:

a switching mechanism for adjusting blue and white scotopic/photopic light levels thereby affecting melatonin levels.

7. The lighting fixture of claim 6 wherein in the switching mechanism is selected from the group consisting of electronic, mechanical, and radio frequency activation switching.

8. The lighting fixture of claim 1 and further comprising:

at least one color sleeve positioned over a light source for providing the blue light and white light levels.

9. The lighting fixture of claim 8 wherein the color sleeves are adjustable.

10. The lighting fixture of claim 1 wherein the blue light and white light levels are incorporated into fiber optics, one fiber for blue light and one fiber for white light.

11. The lighting fixture of claim 1 wherein the blue light and white light levels are combined with an after-glow phosphor undercoat.

12. The lighting fixture of claim 1 wherein the lighting source contains the following scotopic phosphor blend:

Approx. %Phosphor Chemical CompositionPhosphor Peak (nm)40SrO(P₂O₅B₂O₃);

Eu47822Y₂O₃;

Eu61120LaPO₄;

Co, Tb54418Sr₂P₂O₇;

Eu421 

8BaMg₂Al₁₆O₂₇;

Eu450.

13. The lighting fixture of claim 12 wherein the scotopic phosphor blend comprises phosphors to give light primarily in the 400–

620 nm range.

5. The lighting fixture of claim 5 wherein one half of the bulb is filled with the 420–

490 nm blue phosphor and baked and the other side is filled with white phosphor and baked.