High-resolution automotive lens and sensor
AssigneeMobileye Vision Technologies Ltd.
InventorsOri Eytan, Efim Belman
Life of this patent
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Abstract
A camera for use in automotive applications includes a lens system having a modulation transfer function (MTF) tuned to process light in a spectral range from red to green with greater resolution than light in a spectral range from blue to violet. The camera also includes an imager having pixel sensors arranged in a matrix and a color filter matrix including multiple color filter elements, each corresponding to a pixel sensor of the imager. The color filter matrix includes red filter elements and yellow filter elements and the number of yellow filter elements is greater than the number of red filter elements.
Claims19
A camera module having a modulation transfer function (MTF) tuned to light in a green to red spectral range, the camera module comprising:
- a lens system configured preferentially for the green to red spectral range relative to a blue to violet spectral range;
- an imager including a plurality of pixel sensors arranged in a matrix, and
- a color filter matrix positioned between the lens system and the imager, the color filter matrix having a plurality of filter elements, each of the plurality of filter elements corresponding in position to each of the plurality of pixel sensors of the imager, the plurality of filter elements including a larger number of yellow filter elements than red filter elements,
- wherein the imager is configured relative to the lens system such that a frequency response of the camera module is increased for the green to red spectral range relative to the blue to violet spectral range.
A camera module having a modulation transfer function (MTF) tuned to light in a green to red spectral range, the camera module comprising:
- a lens system configured preferentially for the green to red spectral range relative to a blue to violet spectral range;
- an imager including a plurality of pixel sensors arranged in a matrix;
- a color filter matrix positioned between the lens system and the imager, the color filter matrix having a plurality of filter elements, each of the plurality of filter elements corresponding in position to each of the plurality of pixel sensors of the imager, the plurality of filter elements including a larger number of clear filter elements than red filter elements;
- and
- a cut filter positioned between the lens system and the color filter matrix, the cut filter being configured to attenuate light in a blue to ultraviolet spectral range projected by lens system onto the color filter matrix and imager;
- wherein the imager is configured relative to the lens system such that a frequency response of the camera module is increased for the green to red spectral range relative to the blue to violet spectral range.
Dependencies are inferred from the claim text.