Bodenseewerk Geratetechnik Gmbh

Bernd Uwira

Michael Gross

Hans Kordulla

Uwe Hingst

Walter Bross

Wolf-Dieter Paulus

Johann-Friedrich Egger

A scene simulator for generating picture information in real time for testing picture resolving sensors, in particular for testing infrared sensors in target tracking seeker heads, comprises a micro-mechanical mirror array, which consists of a two-dimensional array of mirror elements, which are arranged to be moved between first and second operative positions in response to actuating signals. An illuminating device is arranged to uniformly illuminate the mirror array. The light of the illuminating device, in the first operative position of a mirror element, is reflected to pass by a sensor to be tested and, in the second operative position of the mirror element is reflected into the path of rays of the sensor. A picture computer and driver electronic serve to move the mirror elements into the first or second operative positions such that the sensor to be tested observes a simulated object scene.

Device for generating picture information in real time for testing

A picture detecting sensor unit has a passive sensor resolving a field of view into picture elements having different brightness. Picture processing means receive data from the picture detecting sensor. An additional active LADAR sensor having a laser emitting a laser beam and a scanning system for scanning an area of the field of view by this laser beam provides distance signals from the radiation reflected by an object in the field of view. The scanning of the field of view by the LADAR sensor is controlled by the picture processing means associated with the passive sensor such that the scanning effected by the LADAR sensor is limited to objects detected by the passive sensor in the field of view. A common imaging optical system is provided for the LADAR sensor and the passive sensor. A beam splitter separates the beams detected by the passive sensor and the returning beams of the LADAR sensor.

Picture detecting sensor unit

A passive, picture-resolving detector assembly has a matrix detector (32) and an imaging optical device (16,30) for forming an image of an object scene on the matrix detector. The matrix detector includes a two-dimensional array of detector elements (50) and each of the detector elements (50) is arranged to receive, in cyclic succession, a plurality of picture elements of the image in order to improve resolution. A micro-mechanical mirror array (18) having a two-dimensional array of mirror elements (48) is provided and each of the mirror elements (48) is arranged to be alternatively moved, by control signals applied thereto, into a first operative position or into a second operative position. The imaging optical device comprises a first imaging optical system (16) having a beam axis and arranged to form a high-resolution image of the object scene on the micro-mechanical mirror array (18). The imaging optical device, furthermore, comprises a second imaging optical system (30) arranged to image the micro-mechanical mirror array (18) on the matrix detector (32) such that each detector element (50) receives light from an associated sub-matrix (48) of the micro-mechanical mirror array (18), each such associated sub-matrix (48) including a plurality of mirror elements (56). The mirror elements (56) are arranged to deflect, in the first operative position thereof, light received from the first imaging optical system (16) past the matrix detector (32) and, in the second operative position thereof, the light received from the first imaging optical system onto the respective associated detector element (50) of the matrix detector. The micro-mechanical mirror array (18) is controllable such as to move, in cyclic succession, predetermined ones of the mirror elements (56) of the sub-matrices into the second operative position and the remaining mirrors of the sub-matrix (48) into the first operative position.

Micro-mechanical mirror array and optical imaging assembly for improved

In a sensor assembly, a cooled sensor is arranged in the vacuum chamber of a Dewar vessel. The Dewar vessel has an inner housing element and an outer housing element. Both housing elements are made of metal and are pot-shaped. The outer housing element extends around the inner housing element. The two housing elements define the vacuum chamber of the Dewar vessel. The inner housing element carries the sensor on its end face within the vacuum chamber. A cooler is arranged in the cavity formed by the inner housing element. A tubular support body made of multi-layer glass-ceramic material is arranged in the vacuum chamber and surrounds the inner housing element. The support body supports the inner housing element through radial projections and contains conductors for connecting the sensor.

Sensor assembly with cooled sensor

In a seeker head assembly in a guided missile, particularly a high-speed guided missile, the seeker head (22) is covered by a dome (28) which is rotatably mounted in the structure and is rotated. The dome (28) is circumferentially surrounded by the structure (10) of the guided missile except for a window section (14). A coolant is supplied to an interspace (46) formed between dome (28) and structure (10) of the guided missile.

Seeker head assembly in a guided missile

A high resolution electro-optical detector system having a mosaic detector as charge-coupled component is to be provided. The image of the field of can may be periodically displaced along a closed trajectory to cover the interstices between the detector elements of the mosaic detector. The image informations thus obtained consecutively are stored, and an electronic image of high resolution is obtained therefrom for the digital image processing. Different constructions of the image offset means are described.

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Konstanz, Germany

Bernd Uwira