A patent showing a 5 layer image sensor from Canon has appeared. UV and IR layers help with color reproduction especially for skin tones.
Keith at Northlight has this to add about the patent: “The pixel structure above, shows a BSI design (back illumination), but obviously no pixel structure. Extending the range of light response to UV and IR would cause issues for current lens designs, but the idea of more than three colour primaries is not new, although it would require a major re-write for support from RAW converter software.”
Patent Information (Google Translated)
- Patent Publication No. 2014-103644
- Publication date 2014.6.5
- Filing date 2012.11.22
- Canon patents
- I get the visible light
- I get the ultraviolet light
- I get the infrared light
- I want to extract the skin area
- The skin region of visible light, I will correct the image from the difference of the skin area of ultraviolet light
- Signal value of the infrared light is regarded as the skin area, the high part
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