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Camera suitable for use in a vehicle

  • US 10,017,127 B2
  • Filed: 03/22/2012
  • Issued: 07/10/2018
  • Est. Priority Date: 03/25/2011
  • Status: Active Grant
First Claim
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1. A camera suitable for use in a vehicle, said camera comprising:

  • a housing, an optical system and an image sensor,wherein the optical system comprises a lens frame accommodating a plurality of lenses, and wherein said plurality of lenses comprises an outermost lens, an innermost lens and at least one intermediate lens disposed between the outermost lens and the innermost lens, and wherein the outermost lens is spaced from an adjacent intermediate lens so that an internal space is present between the outermost lens and the adjacent intermediate lens, and wherein the outermost lens, when the camera is disposed at a vehicle, is exposed at an exterior region of the vehicle,wherein the lens frame is attached at the housing,wherein the housing, with the lens frame attached at the housing, has an interior cavity,wherein the image sensor is disposed within the interior cavity of the housing and, when operated, generates heat that heats the air in the interior cavity of the housing,wherein the lens frame comprises a plurality of channels formed into an inner surface of the lens frame and along a longitudinal axis of the lens frame,wherein the channels terminate in the lens frame without direct ventilation to exterior of the camera, wherein one end of the channels is open at the internal space between the outermost lens and the adjacent intermediate lens, and another end of the channels is open at the interior cavity of the housing,wherein the channels extend to the internal space between the outermost lens and the adjacent intermediate lens such that air circulates from the interior cavity of the housing, along one of the channels, through the internal space between the outermost lens and the adjacent intermediate lens, along another of the channels and back to the interior cavity of the housing, andwherein the channels provide for heated air circulation between the interior cavity of the housing and the internal space as a result of the heating of air in the interior cavity of the housing by the image sensor during operation of the image sensor, and wherein the plurality of channels circulates heated air between the outermost lens and the adjacent intermediate lens.

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