Video display system for locating a projected image adjacent a surgical field.

摘要

A method and apparatus for projecting an image of a surgical field along an optical path (12) to intersect a display screen (90) which is nonperpendicular to the optical path (12) and adjacent the surgical field (16). A video projector (20) projects the image along the optical path through a tilted projection optic (60) or compensator, and mirrors (70) locate the optical path adjacent the surgical field. A sterilizable display screen is located in the optical path adjacent the surgical field so that a normal to the screen is noncoincident with the optical path and the projected image on the screen is of constant focus across the screen.