US 12,213,843 B2
Lighting apparatus
Clifton Learn, La Jolla, CA (US)
Filed by Clifton Learn, La Jolla, CA (US)
Filed on Oct. 9, 2023, as Appl. No. 18/377,876.
Application 18/377,876 is a continuation of application No. 17/950,425, filed on Sep. 22, 2022, granted, now 11,813,119.
Application 17/950,425 is a continuation of application No. 17/098,557, filed on Nov. 16, 2020, granted, now 11,478,325, issued on Oct. 25, 2022.
Application 17/098,557 is a continuation of application No. 15/502,078, granted, now 10,869,733, issued on Dec. 22, 2020, previously published as PCT/US2015/043977, filed on Aug. 6, 2015.
Claims priority of provisional application 62/034,867, filed on Aug. 8, 2014.
Prior Publication US 2024/0050187 A1, Feb. 15, 2024
Int. Cl. F21V 21/084 (2006.01); A41D 1/00 (2018.01); A41D 13/002 (2006.01); A41D 20/00 (2006.01); A42B 3/04 (2006.01); A61B 90/30 (2016.01); A61B 90/50 (2016.01); F21L 4/00 (2006.01); F21L 4/04 (2006.01); F21V 14/06 (2006.01); F21V 15/01 (2006.01); F21V 17/16 (2006.01); F21V 23/04 (2006.01); F21V 29/67 (2015.01); F21V 29/76 (2015.01); F21V 29/77 (2015.01); H01M 10/48 (2006.01); F21V 29/89 (2015.01); F21Y 115/10 (2016.01)
CPC A61B 90/30 (2016.02) [A41D 1/002 (2013.01); A41D 13/0025 (2013.01); A41D 20/005 (2013.01); A61B 90/50 (2016.02); F21L 4/00 (2013.01); F21L 4/04 (2013.01); F21V 14/065 (2013.01); F21V 15/01 (2013.01); F21V 17/164 (2013.01); F21V 23/0414 (2013.01); F21V 29/673 (2015.01); F21V 29/767 (2015.01); F21V 29/773 (2015.01); H01M 10/482 (2013.01); H01M 10/488 (2013.01); A61B 2090/502 (2016.02); F21V 29/89 (2015.01); F21Y 2115/10 (2016.08); H01M 2220/30 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A surgical headlamp, comprising:
a head band;
a lighting apparatus connected to the head band;
the lighting apparatus comprising:
a housing having a proximal end and a distal end defining a housing length axis, and an opening at the housing distal end;
an optic having an incident surface and a transmissive surface, the optic being located in the distal end opening of the housing;
a heat sink disposed in the housing, wherein the heat sink has a proximal end and an open distal end spaced apart by a length along the housing length axis, wherein the heat sink has a recess extending along a portion of the heat sink length, and the housing is thermally insulating relative to the heat sink; and
a light emitting diode positioned to project light along the housing length axis, through the heat sink recess, the open distal end of the heat sink, and the distal end opening of the housing, wherein a normal vector projected from the incident surface of the optic intersects the light emitting diode, the heat sink has a body located between the proximal end of the heat sink and the recess along the housing length axis and a plurality of fins projecting away from the body, wherein the fins in the plurality of fins are spaced apart from one another along the housing length axis, a first subset of the fins is located between the proximal end of the heat sink and the recess along the housing length axis, and a second subset of the fins is located-between the light emitting diode and the open distal end of the heat sink along the housing length axis.