Jos. Schneider Optische Werke Kreuznach Gmbh & Co. Kg

Jos. Schneider & Co. Optische Werke

Dematic Logistics Gmbh

Sdi Group Germany Material Handling Solutions Gmbh

Otto Thomas

Heinz Korpert

Karl Lenhardt

A measuring camera has a camera housing fixed to a rigid frame providing a reference surface against which an objective lens unit is held so that for a plurality of such units, all can have their respective projection centrums located at a fixed position within the housing. The frame has guides on which a sensor, e.g. of the CCD type, is mounted for movement parallel to the optical axis without play.

Measurement camera with fixed geometry and rigid length support

The correlated positions of two axially shiftable components of a varifocal objective, i.e., a variator and a compensator, throughout a zoom range are stored in a memory from which they can be read out to control respective drives during a zooming operation. The readout rate is determined by a speed selector which sets a frequency for the pulsing of a control unit that scans successive memory addresses. The memory may also contain data for focusing control, either through axial adjustment of a front component of the objective or through modification of the positional correlation of the two shiftable components, as well as for an adjustment of a diaphragm with changes in the overall focal length.

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Bad Kreuznach, Germany

Otto Thomas