Abstract: Embodiments provide microscopes, and more specifically, embodiments provide improvements to zoom control, viewing, and light management in microscopes particularly suited for surgery. These improvements include a compact zoom control system that provides enhanced surgical workspace, ergonomics, and optics, as well as improved methods for controlling a stereomicroscope light source and a novel auxiliary viewing system.

Abstract: A binocular microscope having a range of variable magnifications extending from 4X to 20X that is suited to microsurgery and other applications. The microscope has a folded optical axis that places the eyepiece directly in line with the work area. The projected line of sight of a viewer looking through the eyepiece is incident on the work area. This enables the viewer to have normal eye-hand coordination. The folded optical axis also provides a compact configuration that provides a large, clear and unobstructed access to the work area.

Abstract: A dental drill system including a multiple of drills operated through a modular control setup by a single foot control unit. The moduler control setup includes an individual module for each hand drill, a syringe block, and a manifold to which the foot control unit is connected. The foot control unit produces the controlling functions by pressurizing different ones of a plurality of air lines connected into the manifold. Multiple orifices extended through the modules and into the manifold provides common air pressure from the foot control lines to each of the modules, and is referred to as a primary orifice network. A secondary orifice network in each module taps into the primary orifice and converts the foot control line pressures into the various dental drill functions i.e. drilling with cooling air, drilling with mist air and chip air.