Apparatus for dark field background photography of medical and biological specimens

Claim 1

FOR USE WITH A CAMERA FOR PHOTOGRAPHING, CATALOGING AND DOCUMENTATION OF OBJECTS WHICH MUST NOT BE SUBJECT TO DIRECT LIGHT RAYS, A DARK FIELD BAFFLE BOX COMPRISING A BOX-LIKE RECEPTACLE HAVING A SPECULAR HIGHLY LIGHT REFLECTING INTERIOR SURFACE, VARIABLE INTENSITY INCANDESCENT LAMPS THEREIN, A BAFFLE ASSEMBLY HAVING A SUPPORT FRAME RECEIVABLE OVER THE OPEN END OF SAID BOX-LIKE RECEPTACLE, VARIABLE MASKING MEANS CARRIED BY SAID SUPPORT FRAME FOR REGULATING THE PHOTOGRAPHIC FIELD OPENING, AND LIGHT DIFFUSION RADIATION DEFLECTION MEANS CARRIED BY AND SUSPENDED BENEATH SAID SUPPORT FRAMES, SAID LIGHT DIFFUSION RADIATION DEFLECTION MEANS HAVING A FLAT BASE AND UPWARDLY DIVERGENT SIDES COATED WITH LIGHT ABSORBING MATERIAL OF THE GROUP OF VELOUR AND FLOCKING POROUS TO LIGHT SO THAT THE LIGHT EMITTED FROM THE INCANDESCENT LAMPS WILL BE REFLECTED FROM THE SPECULAR LIGHT REFLECTING SURFACES OF THE BOX-LIKE RECEPTACLE TO INDIRECTLY ILLUMINATE THE AREA BETWEEN THE LIGHT DIFFUSION DEFLECTION MEANS FLAT BASE AND VARIABLE MASKING MEANS WHEREBY THE OBJECT TO BE PHOTOGRAPHED HAS UNIFORM INDIRECT BACKGROUND ILLUMINATION.