Electro-optic aperture for vehicular imaging system
AssigneeDonnelly Corporation
InventorsBrent J. Bos, Mark L. Larson
Life of this patent
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AssigneeDonnelly Corporation
InventorsBrent J. Bos, Mark L. Larson
Estimating the term…
An electro-optic aperture includes an electrochromic medium at least partially disposed thereon. The electrochromic medium is operable to adjust the transmissivity of light through the aperture in response to an electrical signal applied to the aperture. The aperture preferably is operable to significantly attenuate all wavelengths of energy in an area where the electrochromic medium is energized, thereby allowing the energy to pass through an area of the aperture which either does not include the film or is not being energized. Preferably, the electro-optic aperture is implemented with a silicon imaging array sensor, and functions to improve focusing of images when there is sufficient light available in the scene, while allowing a greater amount of light therethrough when lighting conditions darken. Preferably, the electro-optic aperture is operable to significantly attenuate energy during daytime or other higher intensity lighting conditions, and may be selectively deactivated or otherwise adjusted at nighttime or in other darkened lighting conditions, such that a greater amount of energy may be received by the sensor in order to improve illumination of the image being captured by the sensor.
A vehicular imaging system for capturing an image, comprising:
A vehicular imaging system for capturing an image, comprising:
A vehicular imaging system for capturing an image, comprising:
Dependencies are inferred from the claim text.