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US 10,767,840 B2Granted
Focused LED headlamp with iris assembly
AssigneeRiverpoint Medical, LLC
InventorJohn Thomas Ferguson
Life of this patent
Estimating the term…
Abstract
A headlamp includes a tubular housing; an electrical conductor entering the housing and connected to an electrical network; an LED assembly with a ceramic substrate and an LED having a light-emitting front surface; an iris assembly with a toroidal housing, an iris diaphragm and an actuator for adjusting the width of the aperture. A prime lens placed in front of the iris diaphragm and having an annular light block provided proximate a rear surface of the prime lens; and an optical assembly with at least a light focusing lens placed in front of the iris assembly.
Claims12
A headlamp comprising:
- (a) a tubular housing having a rear and a front;
- (b) an electrical conductor, entering said housing and connected to an electrical network;
- (c) an LED assembly having a light-emitting front surface, connected to the electrical conductor;
- (d) a prime lens placed in front of said LED assembly;
- (e) an iris assembly including a toroidal housing with an inner surface defining an interior space to the rear of the iris assembly, an iris diaphragm seated in the toroidal housing and defining a width adjustable aperture and an actuator for adjusting the width of said width adjustable aperture, said iris assembly provided in front of the prime lens;
- (f) an annular light block placed between said prime lens and said iris diaphragm;
- and
- (g) an optical assembly including at least one light focusing lens placed in front of said iris assembly,
- wherein said prime lens has a convex front surface that extends into said interior space.
6 more elements
A headlamp comprising:
- (a) a tubular housing having a rear and a front;
- (b) an electrical conductor entering said housing and connected to an electrical network;
- (c) an LED assembly having a light-emitting front surface connected to the electrical conductor;
- (d) an iris assembly including a toroidal housing, with a circumferential inner surface defining a front interior space toward the front of the iris assembly and a rear interior space toward the rear of the iris assembly, an iris diaphragm seated in the toroidal housing and defining a width adjustable aperture, and an actuator for adjusting the width of said width adjustable aperture, said iris assembly being placed so that said iris diaphragm is in front of said LED assembly;
- (e) a prime lens placed in front of said iris diaphragm, and having a rear surface provided with an opaque annular coating forming an annular light block;
- and
- (f) a further optical assembly, including at least one light focusing lens placed in front of said prime lens.
4 more elements
Dependencies are inferred from the claim text.