Trimble Germany Gmbh

Rollei Fototechnic Gmbh

Rollei-werke Franke & Heidecke Gmbh & Co. Kg

Roland Krueger

Joachim Proske

Ortwin Rosner

Walter Swarofsky

An aerial digital camera comprises a housing, a lens, a frame, an image sensormounted on the frame, at least three flexure bearingsconnecting the frame and the housing, the flexure bearings allowing a displacement of the frame relative to the housing in a displacement directionparallel to a light receiving surface of the image sensor, a springproviding a biasing force between the housing and the frame oriented in the displacement direction; and an actuatorfor displacing the frame relative to the housing against the biasing force of the spring.

Aerial digital camera and method of controlling the same

The invention relates to a method for controlling an electronically directly driven focal-plane shutter which has two lightproof curtains, each of which is associated with, and controlled by, an electric drive motor. The drive motors move the curtains across an image field. One curtain starts in a closed position, and the other curtain starts in an open position prior to taking the exposure. So as to achieve operating sequences of the two curtains which are as identical as possible, both drive motors initially are driven simultaneously in an 'open' direction. The curtain which starts in the open position first is pressed against a defined open-position stop. Then, by reversing the associated drive motor, that curtain is moved in the 'close' direction to complete the exposure.

Method for controlling a focal-plane shutter having two motors

A device for indicating the depth of field of a camera having aperture setting means and range setting means. The device comprises a plurality of optically active elements positioned for view in the camera viewfinder and scale means associated with the optically active elements. Means are also provided which are responsive to the camera aperture setting and the range setting to select adjacent ones of the optically active elements to indicate the depth of field.

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Wolfenbuettel, Germany

Roland Krueger