TRANSLATIONAL FILTER, SHUTTER, APERTURE APPARATUS FOR SELECTING AND COMBINING FILTERED AND UNFILTERED LIGHT

摘要

A method and apparatus for filtering and mixing light is provided. The apparatus comprises a translational filter, aperture and shutter. A light beam and the translational filter, aperture and shutter are moved relative to each other to precisely control the proportions of filtered, unobstructed and blocked light. A method for precisely controlling the proportions of filtered, unobstructed and blocked light is also provided. Optional accessories include additional translational filters, apertures and shutters, light guides, relay lenses, microscopes, computers, motors for controlling the positions of the components, focusing lenses, and mechanical shutters.