Abstract: A device for selectively controlling illumination from a source that emits illumination along an optical path toward an output has an intensity control apparatus for selectively controlling the intensity of illumination at the output; a filter adapted to be selectively disposed in the optical path; and a unitary mechanical user input for controlling the intensity control apparatus and for, when the intensity is at a maximum, permitting selective disposition of the filter in the optical path.

Abstract: A light tip has a bundle of optical fibers extending from a proximal light-transmitting aperture to a distal light-transmitting aperture and an opaque sleeve about the bundle. The proximal light transmitting aperture has a first cross-sectional shape and the distal light transmitting aperture has a second cross-sectional shape. At least some of the optical fibers in the bundle taper from a relatively larger diameter at the proximal aperture to a relatively smaller diameter at the distal aperture. The surface area of the proximal aperture is greater than the surface area of the distal aperture. The cross-sectional shape of the light tip smoothly and continuously changes from the first cross-sectional shape to the second cross-sectional shape through at least a first portion of the light tip. The light tip has a curved section intermediate the proximal and distal apertures.