Title:
A stack filter and the image sensor containing it
Document Type and Number:
Japanese Patent JP6091539
Kind Code:
B2
Abstract:
A stacked filter for an image sensor including an infrared (IR) pixel is provided. The stacked filter includes a first filter layer disposed at the IR pixel. The first filter layer allows light with wavelengths of a first band to be transmitted through. The stacked filter further includes a second filter layer stacked with the first filter layer. The second filter layer allows light with wavelengths of a second band to be transmitted through. The first band partially overlaps the second band at wavelengths of a third band. The third band is narrower than the first band and the second band. The stacked filter allows light with the wavelengths of the third band to be transmitted through. Furthermore, an image sensor containing a stacked filter is also provided.
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Inventors:
King Yushina
Application Number:
JP2015051668A
Publication Date:
March 08, 2017
Filing Date:
March 16, 2015
Export Citation:
Assignee:
VisEra Technologies Company Limited
International Classes:
G02B5/22; G02B5/20; H01L27/14
Domestic Patent References:
| JP2012137728A | ||||
| JP10065135A | ||||
| JP2006010764A | ||||
| JP2005184690A | ||||
| JP2005006066A | ||||
| JP2012209913A |
Foreign References:
| WO2015159651A1 |
Attorney, Agent or Firm:
Tomihiko Isono