System and method for effecting temperature control in a camera
First Claim
Patent Images
1. A system for effecting temperature control in a camera, comprising:
- a camera housing having a window portion through which radiation from a scene external to the camera housing can enter the camera housing and travel within the camera housing along a path of travel;
a lens housing having an optical stop disposed within the camera housing, the optical stop having an aperture formed therein that is associated with the path of travel;
a lens disposed within the lens housing, the lens having a forward surface adjacent an aft surface of the optical stop, the forward surface having an annular portion and a polished portion inside the annular portion that is adapted to receive the radiation through the aperture; and
a thermally conductive material disposed between the annular portion of the lens and the aft surface of the optical stop, the thermally conductive material having a thermal conductivity of at least approximately 1.90 W/m·
K.
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Accused Products
Abstract
According to an embodiment of the present invention, a system for effecting temperature control in a camera includes a lens housing having an optical stop, a lens disposed within the lens housing, and a thermally conductive material disposed between the lens and the optical stop. The thermally conductive material, which may be an adhesive, has a thermal conductivity of at least approximately 1.90 W/m·K.
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Citations
20 Claims
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1. A system for effecting temperature control in a camera, comprising:
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a camera housing having a window portion through which radiation from a scene external to the camera housing can enter the camera housing and travel within the camera housing along a path of travel;
a lens housing having an optical stop disposed within the camera housing, the optical stop having an aperture formed therein that is associated with the path of travel;
a lens disposed within the lens housing, the lens having a forward surface adjacent an aft surface of the optical stop, the forward surface having an annular portion and a polished portion inside the annular portion that is adapted to receive the radiation through the aperture; and
a thermally conductive material disposed between the annular portion of the lens and the aft surface of the optical stop, the thermally conductive material having a thermal conductivity of at least approximately 1.90 W/m·
K. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for effecting temperature control in a camera, comprising:
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providing a camera housing having a window portion transmissive to radiation;
causing radiation from a scene external to the camera housing to enter the camera housing through the window portion and travel within the housing along a path of travel;
providing a lens housing having an optical stop within the camera housing, the optical stop having an aperture formed therein;
providing a lens within the lens housing, the lens having a forward surface adjacent an aft surface of the optical stop, the forward surface having an annular portion and a polished portion inside the annular portion that is adapted to receive the radiation through the aperture; and
providing a thermally conductive material between the annular portion of the lens and an aft portion of the optical stop, the thermally conductive material having a thermal conductivity of at least approximately 1.90 W/m·
K. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A system for effecting temperature control in a camera, comprising:
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a lens housing having an optical stop;
a lens disposed within the lens housing; and
a thermally conductive adhesive disposed between the lens and the optical stop, the thermally conductive adhesive having a thermal conductivity of at least approximately 1.90 W/m·
K. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification