Stacked type image sensor including color separation element and image pickup apparatus including the stacked type image sensor

摘要

A stacked type image sensor with improved optical characteristics, which may result from a color separation element, and an image pickup apparatus including this image sensor. The stacked type image sensor includes first and second light sensing layers arranged in a stacked manner, and color separation elements positioned between the first and second light sensing layers. Accordingly, the first light sensing layer absorbs and detects light of a first wavelength band, and the second light sensing layer detects light of second and third wavelength bands separated by the color separation elements.

主权项

1. An image sensor comprising:
a first light sensing layer comprising a plurality of first pixels absorbing light of a first wavelength band and transmitting light of other wavelength bands; a second light sensing layer positioned to face the first light sensing layer, wherein the second light sensing layer comprises a plurality of second pixels detecting light of a second wavelength band from the transmitted other wavelength bands and a plurality of third pixels detecting light of a third wavelength band from the transmitted other wavelength bands; and a plurality of color separation elements positioned between the first light sensing layer and the second light sensing layer, wherein the color separation elements are configured to direct light of the second wavelength band toward the second pixels and direct light of the third wavelength band toward the third pixels.