CPC G02B 5/208 (2013.01) [G02B 5/1809 (2013.01); G02B 5/1819 (2013.01)] | 16 Claims |
1. An optical device, comprising:
a plurality of IR-cut pixels, wherein each IR-cut pixel comprises a first grating structure;
a plurality of IR-pass pixels; and
a plurality of grids surrounding the plurality of IR-cut pixels and the plurality of IR-pass pixels,
wherein each IR-cut pixel further comprises an IR-cut filter and a color filter,
wherein the IR-cut filter covers and fills in the first grating structure and the color filter is disposed on the IR-cut filter, or
the color filter covers and fills in the first grating structure and the IR-cut filter is disposed on the color filter.
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