Visor device for use with x-ray film holders has an index plate with at least one marking and an arrangement for connecting the index plate to the visor ring

摘要

The device has a bite block (8), a film clamp (10), an indicator rod (6) and a visor ring (24) on the rod. An index plate (26) has at least one marking and an arrangement for connecting the plate to the visor ring so that an associated visor arrangement is provided for each combination of film holder, film format, film position and x-ray tube.