Abstract: A surgical light including a light housing having at least one light source therein and a handle assembly extending from the light housing, with the handle assembly including a knob and a cover. The handle assembly is rotatably connected to the light housing. The cover covers the knob. Engaging the cover in a first mode and rotating the knob alters a first characteristic of light emitted from the at least one light source. Engaging the cover in a second mode and rotating the knob alters a second characteristic of light emitted from the at least one light source.

Abstract: A method for controlling a medical light by a handle assembly removably mounted to the medical light includes storing configuration data at a controller of the handle assembly that defines a mapping of handle assembly user inputs to medical light property adjustments; detecting a first user input to the handle assembly; and sending a control signal to the medical light to vary a property of light provided by the medical light according to the first user input and the configuration data.

Abstract: A surgical light including a light housing having at least one light source therein and a handle assembly extending from the light housing, with the handle assembly including a knob and a cover. The handle assembly is rotatably connected to the light housing. The cover covers the knob. Engaging the cover in a first mode and rotating the knob alters a first characteristic of light emitted from the at least one light source. Engaging the cover in a second mode and rotating the knob alters a second characteristic of light emitted from the at least one light source.

Abstract: A surgical light including a light housing having at least one light source therein and a handle assembly extending from the light housing, with the handle assembly including a knob and a cover. The handle assembly is rotatably connected to the light housing. The cover covers the knob. Engaging the cover in a first mode and rotating the knob alters a first characteristic of light emitted from the at least one light source. Engaging the cover in a second mode and rotating the knob alters a second characteristic of light emitted from the at least one light source.

Abstract: A surgical light including a substrate having a substantially planar top surface with a plurality of light sources on the substantially planar top surface, with each of the light sources emitting light in a cone when activated. The cone has a first spread angle. An optical system having a first area such that the light emitted from the light sources has a second spread angle after passing through the first area and a second area focusing or redirecting the light passing through the first area at a location a desired distance from the optical system. The second spread angle is less than the first spread angle.

Abstract: A surgical light including a light housing having at least one light source therein and a handle assembly extending from the light housing, with the handle assembly including a knob and a cover. The handle assembly is rotatably connected to the light housing. The cover covers the knob. Engaging the cover in a first mode and rotating the knob alters a first characteristic of light emitted from the at least one light source. Engaging the cover in a second mode and rotating the knob alters a second characteristic of light emitted from the at least one light source.

Abstract: A Fresnel lens including a plurality of sawtooth-shaped projections, with each projection including a first surface at a first angle and a second surface at a second angle. Each first surface has top and bottom edges and each second surface has top and bottom edges. Each projection has a top intersection where the top edge of the first surface intersects the top edge of the second surface. Adjacent projections have a bottom intersection where the bottom edge of the second surface of a first one of the adjacent projections intersects the bottom edge of the first surface of a second one of the adjacent projections. The lens portion is opaque at the top intersection of the projections, at the bottom intersection of adjacent projections, and on the first surface between the top intersection and the bottom intersection.

Abstract: A Fresnel lens including a plurality of sawtooth-shaped projections, with each projection including a first surface at a first angle and a second surface at a second angle. Each first surface has top and bottom edges and each second surface has top and bottom edges. Each projection has a top intersection where the top edge of the first surface intersects the top edge of the second surface. Adjacent projections have a bottom intersection where the bottom edge of the second surface of a first one of the adjacent projections intersects the bottom edge of the first surface of a second one of the adjacent projections. The lens portion is opaque at the top intersection of the projections, at the bottom intersection of adjacent projections, and on the first surface between the top intersection and the bottom intersection.

Abstract: A surgical light including a substrate having a substantially planar top surface with a plurality of light sources on the substantially planar top surface, with each of the light sources emitting light in a cone when activated. The cone has a first spread angle. An optical system having a first area such that the light emitted from the light sources has a second spread angle after passing through the first area and a second area focusing or redirecting the light passing through the first area at a location a desired distance from the optical system. The second spread angle is less than the first spread angle.

Abstract: A child size replica of a western saddle is mounted upon a stand to form a seat. Rollers on the rear of the stand permit the seat to be rolled when the front is lifted. Rubber crutch tips on the front of the stand anchor the seat when it is placed at a dining table with the horn of the saddle under the edge of the table. Experience shows that children sit quietly and peacefully in the saddle at the dining table.