Extreme temperature radiometry and imaging apparatus
First Claim
1. A portable infrared camera system for use in fire-fighting, comprising:
- an optical engine including an infrared camera and a display;
a battery adapted to power the optical engine; and
a self-contained, plural-phase, heat sink thermally connected to the optical engine to receive and store heat from the camera, the heat sink being optimized to preferentially store received heat internally rather than dissipate it to the environment whereby the system can be used for an extended period of time in an environment with a temperature above the temperature of the heat sink.
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0 Petitions
Accused Products
Abstract
A head-up display, an IR camera and associated electronics including power are integrated into portable, self-contained, wrap-around, face-worn vision-enhancement apparatus useful in environments of dense air-borne particulate and thermal extremes such as encountered in fire fighting situations, in accordance with the invention. Reflective and opaque lenses are provided at approximately eye level for IR, vision display and blinding purposes, respectively, to produce a clear bright picture of a scene otherwise obscured by darkness or obscurants. The IR camera is integral with wrap-around system along with a self-contained power supply so that the system is portable and requires no umbilical cord or other external connections. An optical axis of the IR camera and an axis describing the user'"'"'s virtual line of sight through the viewing eye converge at a nominal arm'"'"'s length in front of the user'"'"'s viewing eye, e.g. 3 feet away. The imager is preferably an un-cooled focal plane array and associated imaging, storing, processing and displaying electronics are cooled in the extreme thermal environment using an integral plural phase heatsink. The apparatus is separate from, but compatible with, helmets and SCBA gear worn by the user so that it can easily be installed and removed by an individual user. Extended hands-free operation is provided in a lightweight package providing enhanced vision via color-coded temperature banding for display purposes, the color coding being performed in microprocessor-based firmware that forms part of the electronics. The apparatus may be temporarily affixed via a clip to the brim of a helmet and may be easily shifted on the user'"'"'s face from its normal night-vision position to a temporary stowed position in front of the forehead whereby the user has virtually unobstructed binocular vision.
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Citations
44 Claims
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1. A portable infrared camera system for use in fire-fighting, comprising:
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an optical engine including an infrared camera and a display;
a battery adapted to power the optical engine; and
a self-contained, plural-phase, heat sink thermally connected to the optical engine to receive and store heat from the camera, the heat sink being optimized to preferentially store received heat internally rather than dissipate it to the environment whereby the system can be used for an extended period of time in an environment with a temperature above the temperature of the heat sink. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for use in fire-fighting to view a scene in infrared in an elevated temperature environment, comprising:
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an infrared camera having a nominal maximum operating temperature; and
a self-contained, plural-phase heat sink thermally connected to the camera to receive and store heat from the camera substantially without dissipation of such heat to the environment when the temperature of the environment is above the nominal maximum operating temperature of the camera, the heat sink having sufficient heat storage capacity to allow the camera to operate for at least several minutes in an environment having a temperature above the nominal maximum operating temperature of the camera. - View Dependent Claims (12, 13, 14)
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15. A portable, self-contained apparatus for use in fire-fighting to view a scene in infrared where the environmental temperature is above room temperature, comprising:
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an optical engine including an infrared camera and a display;
a battery adapted to power the optical engine; and
a self-contained, plural-phase heat sink thermally connected to the camera to receive and store heat from the camera, the heat sink being substantially enclosed in a housing and thereby being substantially isolated from direct thermal contact with the environment. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A portable infrared camera system for use in fire fighting, comprising:
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an infrared camera adapted to generate pixel data representative of the temperature of corresponding points in a scene viewed by the camera;
a display device adapted to display an page to a user; and
a processor connected to the camera t receive and process the pixel data therefrom to generate an image representative of the scene on the display device, where the processor generates the image on the display with portions of the scene having a temperature within a first predetermined temperature range displayed in a relatively fixed color and with a luminescence that varies with temperature and portions of the scene having a temperature within a second predetermined temperature range adjacent the first predetermined range are displayed in at least one color markedly different from the color for the first predetermined range, whereby a user viewing the displayed image can readily distinguish the portions of the scene in the first predetermined range from the portions of the scene in the second predetermined range. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A portable infrared camera system for use in fire-fighting, comprising:
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an infrared camera adapted to generate pixel data representative of the temperature of corresponding points in a scene viewed by the camera;
a display; and
a processor adapted to receive pixel data from the camera and produce an image on the display representative of the scene based on the pixel data from the camera, where the image produced on the display by the processor is gray scale with luminescence dependent on temperature for portions of the scene in a second temperature range. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification