| CPC G01J 3/2823 (2013.01) [G01J 3/0208 (2013.01); G01J 3/2803 (2013.01); G01J 2003/2826 (2013.01)] | 19 Claims |
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1. An image sensor comprising:
a sensor substrate comprising a first pixel row and a second pixel row, the first pixel row comprising a plurality of first pixels arranged in a first direction and the second pixel row comprising a plurality of second pixels arranged in the first direction, the second pixel row being adjacent to the first pixel row in a second direction;
a spacer layer that is transparent and is provided on the sensor substrate; and
a color separating lens array provided on the spacer layer and comprising a plurality of nanostructures,
wherein the color separating lens array comprises:
a first color separating lens array extending in the first direction over the first pixel row and comprising a plurality of first nanostructures, among the plurality of nanostructures, configured to separate from light incident on the first color separating lens array, light of a plurality of first wavelengths within a first spectral range and condense the light of the plurality of first wavelengths onto the plurality of first pixels of the first pixel row; and
a second color separating lens array extending in the first direction over the second pixel row and comprising a plurality of second nanostructures, among the plurality of nanostructures, configured to separate from light incident on the second color separating lens array, light of a plurality of second wavelengths within a second spectral range different from the first spectral range and condense the light of the plurality of second wavelengths onto the plurality of second pixels of the second pixel row,
wherein the second color separating lens array is adjacent to the first color separating lens array in the second direction.
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