A sensor apparatus includes a photosensitive sensor, a cover, and a moving mechanism. The photosensitive sensor includes a first lens and a second lens which focus on a photosensitive element. The cover includes a first slit arranged on an optical axis of the first lens and a second slit arranged on an optical axis of the second lens. The moving mechanism is configured to move the photosensitive sensor and the cover relative to each other so that the second slit is arranged on the optical axis of the first lens.

A sensor apparatus includes a photosensitive sensor, a cover, and a moving mechanism. The photosensitive sensor includes a first lens and a second lens which focus on a photosensitive element. The cover includes a first slit arranged on an optical axis of the first lens and a second slit arranged on an optical axis of the second lens. The moving mechanism is configured to move the photosensitive sensor and the cover relative to each other so that the second slit is arranged on the optical axis of the first lens.

A detection system (10) and a detection method (2000) are disclosed herein. The system includes a PIR sensor (12) positioned in an area comprising a plurality of sub-areas, the motion sensor comprising an optical device (22) having a plurality of sub-lenses (26, 28, 30), each sub-lens of the plurality of sub-lenses having a field of view (FOV) corresponding to a sub-area of the plurality of sub-areas. The system further includes at least one processor (32) coupled to the PIR sensor and configured to: activate the plurality of sub-lenses to generate a total sensor FOV comprising each FOV of the plurality of sub-lenses; and dynamically control the plurality of sub-lenses to subdivide the total sensor FOV, wherein the subdivided sensor FOV is smaller than the total sensor FOV.

A detection system (10) and a detection method (2000) are disclosed herein. The system includes a PIR sensor (12) positioned in an area comprising a plurality of sub-areas, the motion sensor comprising an optical device (22) having a plurality of sub-lenses (26, 28, 30), each sub-lens of the plurality of sub-lenses having a field of view (FOV) corresponding to a sub-area of the plurality of sub-areas. The system further includes at least one processor (32) coupled to the PIR sensor and configured to: activate the plurality of sub-lenses to generate a total sensor FOV comprising each FOV of the plurality of sub-lenses; and dynamically control the plurality of sub-lenses to subdivide the total sensor FOV, wherein the subdivided sensor FOV is smaller than the total sensor FOV.

A pixel includes a detector that changes its operating characteristics based on incident energy, an integration capacitor arranged to discharge stored charge through the detector based on changes in the operating characteristics, and an floating gate injection device disposed between the photo-diode and the integration capacitor that controls flow of the charge from the integration capacitor to the detector. The floating gate injection device has a gate, a source electrically coupled to the detector at a first node, and a drain electrically coupled to the integration capacitor. The gate has a control voltage (V.sub.T) stored therein to set to a per-pixel bias gate voltage to control a detector bias voltage of the detector at the first node.

A pixel includes a detector that changes its operating characteristics based on incident energy, an integration capacitor arranged to discharge stored charge through the detector based on changes in the operating characteristics, and an floating gate injection device disposed between the photo-diode and the integration capacitor that controls flow of the charge from the integration capacitor to the detector. The floating gate injection device has a gate, a source electrically coupled to the detector at a first node, and a drain electrically coupled to the integration capacitor. The gate has a control voltage (V.sub.T) stored therein to set to a per-pixel bias gate voltage to control a detector bias voltage of the detector at the first node.

An occupancy sensor device may comprise a lens having a rated focal length, the lens to refract infrared radiation to converge at a point at the rated focal length; a passive infrared (PIR) sensor comprising detecting elements; and a body coupled with the lens and the PIR sensor to fix a distance between the lens and the PIR sensor, wherein the distance is less than a rated focal length of the lens and between the rated focal length of the lens and the lens, and the detecting elements of the PIR sensor are positioned to capture infrared radiation refracted by the lens. Some embodiments comprise a PIR sensor comprising an exposure area to capture infrared radiation incident to the exposure area; the PIR sensor comprising a first circuit board and a second circuit board coupled with the PIR sensor, the second circuit board perpendicular to the first circuit board.

An occupancy sensor device may comprise a lens having a rated focal length, the lens to refract infrared radiation to converge at a point at the rated focal length; a passive infrared (PIR) sensor comprising detecting elements; and a body coupled with the lens and the PIR sensor to fix a distance between the lens and the PIR sensor, wherein the distance is less than a rated focal length of the lens and between the rated focal length of the lens and the lens, and the detecting elements of the PIR sensor are positioned to capture infrared radiation refracted by the lens. Some embodiments comprise a PIR sensor comprising an exposure area to capture infrared radiation incident to the exposure area; the PIR sensor comprising a first circuit board and a second circuit board coupled with the PIR sensor, the second circuit board perpendicular to the first circuit board.

The invention relates to security methods, while protecting against false activations, and it relates to a method for detecting a motion of objects that utilizes a passive infrared sensor. The invention may be used for security alarm systems. A method for detecting an object motion is proposed, the method comprising: detecting a motion within sensitivity areas of at least two pyrosensors and generating a signal from said pyrosensors.

The invention relates to security methods, while protecting against false activations, and it relates to a method for detecting a motion of objects that utilizes a passive infrared sensor. The invention may be used for security alarm systems. A method for detecting an object motion is proposed, the method comprising: detecting a motion within sensitivity areas of at least two pyrosensors and generating a signal from said pyrosensors.