Fusion night vision system
First Claim
1. A fusion night vision system, comprising:
- a housing;
a first focus ring rotatably coupled to the housing and aligned with a first channel for processing information in a first range of wavelengths, the first channel having a first objective focus having a first input axis;
a second channel for processing information in a second range of wavelengths, the second channel having a second objective focus having a second input axis, the second input axis being linearly displaced from the first input axis;
a magnet fixed to the first focus ring;
a sensor coupled to the housing and disposed in close proximity to the magnet; and
a processor electrically coupled to and responsive to the sensor to shift an image formed from a selected one of the first and the second channels to correct for parallax caused by the first input axis being linearly displaced from the second input axis.
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Accused Products
Abstract
A fusion night vision system having image intensification and thermal imaging capabilities includes an edge detection filter circuit to aid in acquiring and identifying targets. An outline of the thermal image is generated and combined with the image intensification image without obscuration of the image intensification image. The fusion night vision system may also include a parallax compensation circuit to overcome parallax problems as a result of the image intensification channel being spaced from the thermal channel. The fusion night vision system may also include a control circuit configured to maintain a perceived brightness through an eyepiece over a mix of image intensification information and thermal information. The fusion night vision system may incorporate a targeting mode that allows an operator to acquire a target without having the scene saturated by a laser pointer. The night vision system may also include a detector, an image combiner for forming a fused image from the detector and a display, and a camera aligned with image combiner for recording scene information processed by the first detector.
84 Citations
16 Claims
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1. A fusion night vision system, comprising:
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a housing; a first focus ring rotatably coupled to the housing and aligned with a first channel for processing information in a first range of wavelengths, the first channel having a first objective focus having a first input axis; a second channel for processing information in a second range of wavelengths, the second channel having a second objective focus having a second input axis, the second input axis being linearly displaced from the first input axis; a magnet fixed to the first focus ring; a sensor coupled to the housing and disposed in close proximity to the magnet; and a processor electrically coupled to and responsive to the sensor to shift an image formed from a selected one of the first and the second channels to correct for parallax caused by the first input axis being linearly displaced from the second input axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A fusion night vision system, comprising:
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a housing; a first focus ring rotatably coupled to the housing and surrounding a first objective focus, the first objective focus being aligned with a first channel for processing information in a first range of wavelengths; a second focus ring rotatably coupled to the housing and surrounding a second objective focus, the second objective focus being aligned with a second channel for processing information in a second range of wavelengths; a magnet fixed to the first focus ring; a sensor coupled to the housing and disposed in close proximity to the magnet; and a processor electrically coupled to and responsive to the sensor to shift an image formed from a selected one of the first and the second channels to correct for parallax caused by the first focus ring being linearly displaced from the second focus ring.
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Specification