COMPACT KERATOSCOPE WITH INTERCHANGEABLE CONES

摘要

A keratoscope image processing system having a compact keratoscope usable with a variety of light ring cones employs an improved cone (13) and lightbox (23) combination in which the light transmitting rings (20) of the cone (13) are more sharply defined by being positioned between incised opaque rings, and which the lightbox (23) has facets for mounting and heat-sinking a pair of laser diodes (23), a semi-toroidal cavity for mounting a ring-shaped fluorescent lamp (16) for illuminating the cone (13) and tunnels that direct the laser beams into the cone (13) to intersect on the visual axis of the cone. The light box (23) provides a surface for fixedly mounting a pair of mirrors (38) that redirect the laser beams. The different cones are identified by patterns of light pervious spots illuminated from the lightbox (23) and sensed by detectors (30) mounted in the lightbox (23). Signals from the detectors (30) modify the image processing in accordance with stored optical characteristics corresponding to the detected patterns.