Teledyne Flir Commercial Systems, Inc.

Sean Tauber

Nile E Fairfield

Kelsey M Judd

Theodore R Hoelter

Brian B Simolon

Naseem Y Aziz

Michael D Walters

Tadashi Horikiri

Randy J Hansen

Jeff Becker

Chris J Posch

Jeffrey Imamura

James A Goodland

Techniques to test infrared detectors are disclosed. In one example, a focal plane array for an imaging system includes a plurality of infrared detectors arranged in a plurality of rows and columns where each of the infrared detectors is configured to provide an output signal in response to externally received thermal radiation associated with a scene. A plurality of offset circuits of the imaging system may be electrically coupled to the focal plane array and configured to selectively superimpose fixed-pattern noise on the output signals to provide modified output signals. A readout integrated circuit of the imaging system may be configured to provide the modified output signals for processing to test an integrity of the infrared detectors. Modified output signals that are outside an expected output range based on the thermal radiation and known offset may be determined defective. Related methods, devices, and systems are also provided.

Bolometer unit cell pixel integrity check systems and methods

Thermal imaging and navigation systems and related techniques are provided to improve the operation of manned or unmanned mobile platforms, including passenger vehicles. A system includes a thermal imaging device configured to be mounted on a vehicle. The thermal imaging device is configured to, when mounted on the vehicle, capture a first image of a scene encompassing a portion of the vehicle and capture a second image associated with a reflection of the scene from the portion of the vehicle. The system further includes a logic device configured to communicate with the thermal imaging device and determine a disparity map based on the first image and the second image.

Radiometric thermal imaging improvements for navigation systems and methods

Techniques for facilitating imager verification systems and methods are provided. In one example, an imaging device includes a focal plane array. The focal plane array includes a detector array including a plurality of detectors, where each of the plurality of detectors is configured to detect electromagnetic radiation to obtain image data. The focal plane array further includes a readout circuit configured to perform a readout to obtain the image data from each of the plurality of detectors. The imaging device further includes a processing circuit configured to perform a verification of the imaging device based at least on the image data. Related methods and systems are also provided.

Imager verification systems and methods

Techniques are disclosed for providing vehicular radiometric calibration systems and methods. In one example, a method includes capturing, by an array of infrared sensors mounted on a vehicle, a thermal image of a scene during navigation of the vehicle and/or while the vehicle is stationary. The thermal image comprises a plurality of pixel values. Each infrared sensor of the array is associated with a respective one of the plurality of pixel values. The method further includes determining temperature data associated with a portion of the scene, where the portion is associated with a subset of the plurality of pixel values. The method further includes generating a correction value based on the thermal image and the temperature data. Related systems, vehicles, and devices are also provided.

Vehicular radiometric calibration systems and methods

Techniques are disclosed for systems and methods to control operation of a cryocooler/refrigeration system to provide cryogenic and/or general cooling of a device or sensor system. A cryocooler controller includes a motor driver controller configured to generate motor driver control signals based on operational parameters corresponding to operation of a cryocooler controlled by the controller, and a motor driver configured to generate corresponding drive signals to drive a motor of the cryocooler. The motor driver includes a first stage with a first pair of switches coupled serially between an input of the motor driver and a ground of the motor driver, a second pair of switches coupled serially between an output of the first stage and the ground of the motor driver, and an inductor coupled between the first and second pairs of switches, where operation of each switch is independently controlled by the motor driver control signals.

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Goleta, CA, United States of America

Sean Tauber