Illumination of replicas of biological surface tissue

摘要

A replica of biological surface tissue with negative topography lying on a platform is illuminated by means of light from a light source disposed inside a base on which the platform is mounted. Illuminating light from the source is transmitted to a location above the platform from which it is directed onto the platform such that the illuminating light impinges upon the replica at an angle approximately between 20 DEG and 42 DEG to the surface of the replica. Preferably, the illuminating light is transmitted by a fiber optical bundle and/or mirrors with flat or varying focal lengths. The platform is rotatable and tiltable, and is adjusted for viewing of the replica with positive topography. The illuminated replica is magnified by a microscope and projected thereby onto a screen for observation.