Enhanced visualization illumination system

Patent metadata

Field	Value
Publication number	US-10219695-B2
Application number	US-201715680899-A
Country	US
Kind code	B2
Filing date	Aug 18, 2017
Priority date	Nov 10, 2006
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

Abstract

A first light source producing a first light beam with a first intensity and a second light source producing a second light beam with a second intensity. A light filter device receives the first light beam and transmits a filtered portion of the first light beam. A first angling device reflects the filtered portion of the first light beam in a first angled direction and a second angling device reflects the second light beam in a second angled direction. A mirror receives and in turn reflects the filtered portion of the first light beam reflected by the first angling device and the second light beam reflected by the second angling device to form a converged light beam with a third intensity.

First claim

What is claimed is:

1. A method for generating enhanced illumination, the method comprising:
producing by a first light source a first light beam with a first intensity;
coupling the first light beam to a first optical fiber;
producing by a second light source a second light beam with a second intensity;
coupling the second light beam to a second optical fiber;
receiving the first light beam by a light filter device and transmitting a filtered portion of the first light beam;
reflecting by a first angling device the filtered portion of the first light beam in a first angled direction;
reflecting by a second angling device at least a portion of the second light beam in a second angled direction;
receiving and reflecting by a mirror at least the filtered portion of the first light beam reflected by the first angling device and at least the portion of the second light beam reflected by the second angling device for forming a converged light beam with a third intensity;
outputting the converged light beam at an output port; and
coupling the output port to a third optical fiber.

2. The method of claim 1 , further comprising configuring a first shutter to adjust the first intensity of the first light source and configuring a second shutter to adjust the second intensity of the second light source.

3. The method of claim 1 , wherein the mirror is a substantially curved mirror.

4. The method of claim 1 , wherein at least one of the first or second angling device comprises a mirror.

5. The method of claim 1 , wherein at least one of the first or second angling device comprises a beam splitter.

6. The method of claim 1 , wherein the light filter device is configured to filter out light of particular bandwidths.

7. The method of claim 1 , wherein the converged light beam converges bandwidth limited light from the first light source with substantially white light from the second light source.

8. The method of claim 1 , wherein the third intensity of the converged light beam is greater than the first or second intensity alone.

9. The method of claim 1 , wherein the converged light beam comprises red-free light for nerve fiber layer examination.

10. The method of claim 1 , wherein converged light beam comprises bandwidth limited light to reduce chromatic aberrations.

Assignees

• Doheny Eye Inst

Inventors

• Bhadri Prashant
• Lescoulie James
• Fang Sophia
• Mccormick Matthew
• Kerns Ralph
• Humayun Mark
• Barnes Aaron

Classifications

• A61B3/13 Primary

  Ophthalmic microscopes · CPC title