Multiple light source configuration

Patent metadata

Field	Value
Publication number	US-12416801-B2
Application number	US-202418664080-A
Country	US
Kind code	B2
Filing date	May 14, 2024
Priority date	Apr 21, 2020
Publication date	Sep 16, 2025
Grant date	Sep 16, 2025

Abstract

A lighting assembly including a plurality of lighting sources or modules arranged concentrically about an inner circumference of the lighting device, wherein the plurality of lighting sources or modules emit light in at least one of a plurality of wavelength ranges (UV, visible (e.g., blue, green, yellow, orange, red, white, etc.), IR) onto a lighting director device that redirects the emitted light toward a lens system, the lens system focusing the light onto a viewing point. Further disclosed is a passthrough within the lighting director device that allows light positioned on a base of the lighting device to pass through the lighting director.

First claim

What is claimed is:

1. A lighting device comprising:
a lens assembly comprising:
at least one objective lens, each of the at least one objective lens including at least one optical characteristic, wherein the at least one objective lens is configured to form an optical axis passing through an axis of the at least one objective lens; and

a lighting assembly comprising:
a plurality of lighting sources positioned about an inner circumference of the lighting assembly, each of the plurality of lighting sources configured to:
emit light along an axis toward the optical axis;

at least one lighting source positioned on a base of the lighting source, the at least one lighting source configured to:
emit light along the optical axis; and

a plurality of reflective surfaces arranged opposite the plurality of lighting sources arranged about the inner circumference and extending, at an angle, from the base of the lighting assembly toward an apex, wherein an angular relation of the multiple reflective surfaces forming an apex angle therebetween, the plurality of reflective surfaces are configured to:
receive the light emitted by at corresponding ones of the plurality of lighting sources positioned about the inner surface of the lighting assembly;
re-directed the received light toward a known region associated with the at least one objective lens, and
pass the light emitted by the at least one lighting source positioned on the base through an opening formed at the apex of the plurality of reflective surfaces toward the known region associated with the at least one objective lens, wherein the optical characteristics associated with each the at least one objective lens causing the light within the known region to be focused to a point a known distance from the at least one objective lens.

2. The lighting device of claim 1 , wherein the plurality of lighting sources comprising:
a light emitting diode; and
at least one of: an aperture, an aperture holder and a dome lens.

3. The lighting device of claim 1 , comprising:
a controller configured to:
control an emission of light from the plurality of lighting sources.

4. The lighting device of claim 1 , comprising:
a plurality of controllers, wherein each of the plurality of controllers configured to:
control an emission of light from a corresponding one of the plurality of lighting sources.

5. The lighting device of claim 1 , wherein the plurality of reflective surfaces comprise one of: a plurality of mirrors and a plurality of highly polished surfaces.

6. The lighting device of claim 1 , wherein the apex angle is greater than ninety (90) degrees and light emitted by the plurality of lighting sources is emitted along an axis substantially perpendicular to the optical axis.

7. The lighting device of claim 1 , wherein the apex angle is substantially equal to ninety (90) degrees and light emitted by the plurality of lighting sources is emitted at an angle offset from an axis substantially perpendicular to the optical axis.

8. The lighting device of claim 1 , wherein the plurality of reflective surfaces form a prism positioned on the base of the light assembly.

9. The lighting device of claim 8 , wherein the prism comprises:
a passthrough extending from the gap at the apex of the plurality of reflective surfaces through the prism to the base.

10. The lighting device of claim 9 , comprising:
a filter positioned within the gap, the filter configured to allow light within at least one wavelength range to pass through.

11. The lighting device of claim 9 , comprising:
at least one lighting source positioned on the base of the light assembly, wherein light emitted by the at least one lighting source positioned on the base of the light assembly is projected through said passthrough of said plurality of reflective surfaces.

12. The lighting device of claim 1 , comprising:
a filter positioned on a distal end of the lighting device, the filter configured to allow light within at least one wavelength range to pass through.

13. The lighting device of claim 1 comprising:
an adjustment means configured to:
alter the angular relation of the plurality of reflective surfaces.

14. A lighting device comprising:
a lens assembly comprising:
at least one lens, the at least one lens forming an optical axis associated with the lighting device; and

a lighting assembly comprising:
at least one first lighting source positioned on a base of the lighting assembly, the first lighting source configured to:
emit light along the optical axis;

at least one second lighting source positioned on an inner circumference of the lighting assembly, the second lighting source configured to:
emit light along an axis substantially perpendicular to the optical axis; and

a light director configured to:
receive light emitted by the first lighting source and the second lighting source, wherein light emitted by the first lighting source is passed through the light director and light emitted by the second lighting source is re-directed by the light director to travel along the optical axis.

15. The lighting device of claim 14 , comprising:
an optical coating on the light director, the optical coating configured to:
allow a desired wavelength range associated with the second light to be re-directed by the light director.

16. The lighting device of claim 14 , wherein the optical coating is configured to:
allow a desired wavelength range associated with the first light to be passed through the light director.

17. The lighting device of claim 14 comprising:
a filter positioned on a distal end of the lighting device, the filter configured to: allow light within at least one wavelength range of the first light and second light to pass through.

18. A lighting device comprising:
a lens assembly comprising:
at least one lens element, the at least one lens element forming an optical axis through the lighting device; and

a lighting assembly comprising:
a first set of lighting sources arranged along an inner circumference of the lighting assembly;
a second set of lighting sources arranged on a base of the lighting assembly; and
a light director comprising:
a plurality of reflective surfaces extending from the base at an acute angle toward an apex, the plurality of reflective surfaces forming a gap at the apex, wherein the light director is configured to:
receive light emitted by the first set of lighting sources;
re-direct the receive light toward a region on the at least one lens; and
allow light emitted, along the optical axis, by the second set of lighting sources to pass through to the region on the at least one lens, wherein the light within the region after passing through the at least one lens converges onto a plane a known distance from the first set of lighting sources.

19. The lighting device of claim 18 , wherein the first set of lighting sources emit light along an axis substantially perpendicular to the optical axis.

20. The lighting device of claim 18 , wherein the first set and second set of lighting sources comprise:
at least one light emitting diode; and
at least one of: an aperture holder, an aperture, and a dome lens.

21. The lighting device of claim 18 , wherein the second set of lighting sources emit a white light and the first set of lighting sources emit light in a non-white wavelength band.

Assignees

• Designs For Vision

Inventors

• Solomon Moty
• Feinbloom Richard E

Classifications

• F21V14/02

  by movement of light sources {(in vehicle head lamps F21S41/657)} · CPC title

• F21V23/003

  the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array · CPC title

• F21V19/02

  with provision for adjustment, e.g. for focusing · CPC title

• F21V11/08

  using diaphragms containing one or more apertures · CPC title

• F21V7/041 Primary

  with conical or pyramidal surface · CPC title