Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
A61B3/103—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers or skiascopes
Vorrichtung zur optischen Distanzmessung mit automatischer Reduktion der Meßwerte auf die Horizontaldistanz und zur gleichzeitigen Messung der Breiten- und Höhenausdehnung eines entfernten Gegenstandes (Baumstamm)