CPC G02B 3/0006 (2013.01) [G02B 27/1013 (2013.01); H04N 23/60 (2023.01); H04N 25/11 (2023.01)] | 19 Claims |
1. An image sensor comprising:
a sensor substrate including a plurality of first pixels, and a plurality of second pixels;
a color separating lens array provided on the sensor substrate, the color separating lens array including a plurality of first pixel corresponding regions corresponding to the plurality of first pixels and a plurality of second pixel corresponding regions corresponding to the plurality of second pixels; and
a spacer layer between the sensor substrate and the color separating lens array,
wherein each of the plurality of first pixel corresponding regions and each of the plurality of second pixel corresponding regions comprise a plurality of nanoposts configured to change a phase of incident light incident on the color separating lens array such that the color separating lens array condenses first wavelength light in the incident light to the plurality of first pixels and condenses second wavelength light in the incident light to the plurality of second pixels, and
wherein a thickness of the spacer layer is less than a focal distance of the color separating lens array with respect to the first wavelength light.
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