Systems and techniques are provided for sensor device. A sensor device may include a housing, a lens inserted into a first opening of the housing, a metal mask covering a portion of the interior of the lens, a passive infrared (PIR) sensor underneath the lens and the metal mask, and a light pipe around the PIR sensor, the lens, and the metal mask. Part of the light pipe may be positioned above an activation mechanism for a button. An airflow gasket may be around the PIR sensor. A filter circuit board may be under the PIR sensor and connected to leads of the PIR sensor. A control circuit board may include the activation mechanism for the button. A backplate may include a slot for attachment to a snap of a magazine in the housing of the sensor device.

Methods, systems, and apparatus for an infrared and visible imaging system. In some implementations, Image data from a visible-light camera is obtained. A position of a device is determined based at least in part on the image data from the visible-light camera. An infrared camera is positioned so that the device is in a field of view of the infrared camera, with the field of view of the infrared camera being narrower than the field of view of the visible-light camera. Infrared image data from the infrared camera that includes regions representing the device is obtained. Infrared image data from the infrared camera that represents the device is recorded. Position data is also recorded that indicates the location and pose of the infrared camera when the infrared image data is acquired by the infrared camera.

A non-contact medical thermometer is disclosed that includes an IR sensor assembly having an IR sensor for sensing IR radiation from a target, a distance sensor configured to determine a distance of the thermometer from the target, and a memory component operatively coupled at least to the IR sensor assembly and the distance sensor. The memory component contains predetermined compensation information that relates to predetermined temperatures of targets and to predetermined distances from at least one predetermined target. A microprocessor is operatively coupled to the memory component. The microprocessor is configured to perform temperature calculations based on the IR radiation from the target, the distance of the thermometer from the target, and the predetermined compensation information.

Infrared imaging devices are provided which are configured to implement side-scan infrared imaging for, e.g., medical applications. For example, an imaging device includes a ring-shaped detector element comprising a circular array of infrared detectors configured to detect thermal infrared radiation, and a focusing element configured to focus incident infrared radiation towards the circular array of infrared detectors. The imaging device can be an ingestible imaging device (e.g., swallowable camera) or the imaging device can be implemented as part of an endoscope device, for example.

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.

This application is directed to a home monitoring and control system including a doorbell installed at a door of a home. The doorbell has a button configured to, upon being touched, depressed or activated, wirelessly initiate a first communication to indicate presence of a person at the door. The doorbell also has a camera configured to capture video data within a field of view, and a processor configured to cause a communication component to enable the first communication and wirelessly stream via a remote server the video data captured by the camera to a monitoring device associated with an occupant of the home. A rechargeable battery is coupled to a housing wire and configured to be charged via the housing wire, and the doorbell is configured to charge and discharge the rechargeable battery based on power usage of the doorbell.

A device for detecting energy beam is provided. The device comprises a carbon nanotube structure, a support structure and an infrared detector. The carbon nanotube structure comprises a plurality of carbon nanotubes, and an extending direction of each carbon nanotube is parallel to a direction of an energy beam to be detected. The support structure is configured to support the carbon nanotube structure, and make a portion of the carbon nanotube structure suspended in the air. The infrared detector is located below and spaced apart from the carbon nanotube structure. The infrared detector is configured to detect a temperature of a suspended portion of the carbon nanotube structure, and image according to a temperature distribution of the carbon nanotube structure. A method for detecting energy beam is also provided.

Methods of sensor readout and calibration and circuits for performing the methods are disclosed. In some embodiments, the methods include driving an active sensor at a voltage. In some embodiments, the methods include use of a calibration sensor, and the circuits include the calibration sensor. In some embodiments, the methods include use of a calibration current source and circuits include the calibration current source. In some embodiments, a sensor circuit includes a Sigma-Delta ADC. In some embodiments, a column of sensors is readout using first and second readout circuits during a same row time.

Methods, systems, and apparatus for an infrared and visible imaging system. In some implementations, Image data from a visible-light camera is obtained. A position of a device is determined based at least in part on the image data from the visible-light camera. An infrared camera is positioned so that the device is in a field of view of the infrared camera, with the field of view of the infrared camera being narrower than the field of view of the visible-light camera. Infrared image data from the infrared camera that includes regions representing the device is obtained. Infrared image data from the infrared camera that represents the device is recorded. Position data is also recorded that indicates the location and pose of the infrared camera when the infrared image data is acquired by the infrared camera.

An infrared imaging microbolometer integrating a membrane assembled in suspension above a substrate by means of holding arms attached to anchoring nails is disclosed. The membrane includes a support layer crossing the upper end of the anchoring nails. It also includes an absorber or electrode deposited on the support layer and on the anchoring nails with a pattern forming at least two electrodes. It further includes a dielectric layer deposited on the absorber or electrode and on the support layer, at least two conductive vias formed through the dielectric layer in contact with the at least two electrodes, and a thermometric or thermoresistive material arranged on a planar surface formed at the level of the upper ends of the conductive vias.