Enhanced visualization illumination system

• US 7,654,716 B1
• Filed: 11/09/2007
• Issued: 02/02/2010
• Est. Priority Date: 11/10/2006
• Status: Active Grant

• Current Assignee: Doheny Eye Institute
• Original Assignee: Doheny Eye Institute
• Inventors: Lescoulie, James, Barnes, Aaron, Humayun, Mark, McCormick, Matthew, Bhadri, Prashant, Kerns, Ralph, Fang, Sophia
• Primary Examiner(s): Lee; Gunyoung T
• Application Number:
  US11/938,233
• Time in Patent Office: 816 Days
• Field of Search: 362/572, 362/574, 362/575, 362/232, 362/233, 362/269
• US Class Current: 362/572
• CPC Class Codes: A61B 3/13 Ophthalmic microscopes

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.

Claims

1. An enhanced illumination system surgery comprising:

a first light source configured to produce a first light beam with a first intensity;

a second light source configured to produce a second light beam with a second intensity;

at least one light filter device configured to receive the first light beam and transmit a filtered portion of the first light beam;

a first angling device configured to be adjusted to a first position for reflecting the filtered portion of the first light beam in a first angled direction, and further configured to be adjusted to a second position for allowing the first light beam to bypass the first angling device and to reach a first output port;

a second angling device configured to be adjusted to a third position for reflecting at least a portion of the second light beam in a second angled direction, and further configured to be adjusted to a fourth position for allowing the second light beam to bypass the second angling device and to reach a second output port;

a mirror configured to receive and reflect at least the filtered portion of the first light beam reflected by the first angling device and at least a portion of the second light beam reflected by the second angling device for forming a converged light beam with a third intensity; and

a third output port for outputting the converged light beam.

2. The enhanced illumination system of claim 1, wherein the light filter device is configured to filter out light of particular bandwidths.

3. The enhanced illumination system of claim 1, further comprising a coupling system configured to couple the converged light beam to an optical fiber coupled to the output port.

4. The enhanced illumination system of claim 1, further comprising a first shutter configured to adjust the first intensity of the first light source and a second shutter configured to adjust the second intensity of the second light source.

5. The enhanced illumination system of claim 1, wherein the mirror is a substantially curved mirror.

6. The enhanced illumination system of claim 1, wherein the angling device comprises a mirror.

7. The enhanced illumination system of claim 1, wherein the angling device comprises a beam splitter.

8. The enhanced illumination system 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.

9. The enhanced illumination system of claim 1, wherein the third intensity of the converged light beam is greater than the first or second intensity alone.

10. The enhanced illumination system for surgery of claim 1, wherein the converged light beam comprises red-free light for nerve fiber layer examination.

11. The enhanced illumination system for surgery of claim 1, wherein converged light beam comprises bandwidth limited light to reduce chromatic aberrations.