Low power and small form factor infrared imaging
First Claim
Patent Images
1. A system comprising:
- a focal plane array (FPA) comprising;
an array of infrared sensors adapted to image a scene, wherein a size of the array of infrared sensors is less than or equal to 160 by 120; and
a read out integrated circuit (ROIC) adapted to provide signals from the infrared sensors corresponding to captured image frames; and
a bias circuit adapted to provide a bias voltage of approximately 0.2 volts to approximately 0.7 volts to the infrared sensors in response to a regulated voltage of approximately 1.5 volts to approximately 2.8 volts.
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Abstract
Various techniques are provided for implementing an infrared imaging system. In one example, a system includes a focal plane array (FPA). The FPA includes an array of infrared sensors adapted to image a scene. The FPA also includes a bias circuit adapted to provide a bias voltage to the infrared sensors. The bias voltage is selected from a range of approximately 0.2 volts to approximately 0.7 volts. The FPA also includes a read out integrated circuit (ROIC) adapted to provide signals from the infrared sensors corresponding to captured image frames. Other implementations are also provided.
58 Citations
16 Claims
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1. A system comprising:
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a focal plane array (FPA) comprising; an array of infrared sensors adapted to image a scene, wherein a size of the array of infrared sensors is less than or equal to 160 by 120; and a read out integrated circuit (ROIC) adapted to provide signals from the infrared sensors corresponding to captured image frames; and a bias circuit adapted to provide a bias voltage of approximately 0.2 volts to approximately 0.7 volts to the infrared sensors in response to a regulated voltage of approximately 1.5 volts to approximately 2.8 volts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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receiving, at a bias circuit of a focal plane array (FPA), a regulated voltage in a range of approximately 1.5 volts to approximately 2.8 volts; providing a bias voltage from the bias circuit to an array of infrared sensors of the FPA in response to the regulated voltage, wherein the bias voltage is provided in a range of approximately 0.2 volts to approximately 0.7 volts; imaging a scene using the array of infrared sensors, wherein a size of the array of infrared sensors is less than or equal to 160 by 120; and providing signals from the infrared sensors corresponding to captured image frames using a read out integrated circuit (ROIC) of the FPA. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification