Excelitas Technologies Singapore Pte. Ltd.

Excelitas Technologies Gmbh & Co Kg

Juergen Schilz

Arthur John Barlow

Wolfgang Schmidt

Martin Liess

An apparatus configured to sense presence and motion in a monitored space is presented. The apparatus includes a dual-element assembly with a first thermal sensing element and a second thermal sensing element configured to produce a direct current output that is sustained at a level substantially proportional to an amount of thermal energy being received at the thermal sensing elements. A lens array (or equivalent optics) is coupled to the elements, having a plurality of lenses directing incident thermal energy from a plurality of optically-defined spatial zones onto the sensing elements. An electronic circuitry is configured to read a resulting signal of the dual-element assembly and an individual output signal of each the first thermal sensing element and the second thermal sensing element.

Motion and presence detector

An apparatus configured to sense presence and motion in a monitored space includes one or more thermal sensing devices and a lens array. Each thermal sensing device is configured to produce a direct current output that is sustained at a level substantially proportional to an amount of thermal energy being received at the thermal sensing device. The lens array is coupled to the one or more thermal sensing devices and includes multiple lenses, each of which is configured to direct incident thermal energy from at least a respective one of multiple different physical zones located within the monitored space onto the one or more thermal sensing devices.

Thermal sensor module with lens array

A method for correcting the output signal of a radiation sensorincludes obtaining two or more temperature signals from a corresponding number of measurements of quantities at different times and/or different locations relating to the temperature of the sensor, and correcting the output signal with reference to said temperature signals.

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Niedernhausen, Germany

Juergen Schilz