Invention Grant
- Patent Title: Photosensors for color measurement
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Application No.: US17287472Application Date: 2019-11-04
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Publication No.: US11592334B2Publication Date: 2023-02-28
- Inventor: Gunter Siess , Julius Komma
- Applicant: ams Sensors Germany GmbH
- Applicant Address: DE Jena
- Assignee: ams Sensors Germany GmbH
- Current Assignee: ams Sensors Germany GmbH
- Current Assignee Address: DE Jena
- Agency: Michael Best & Friedrich LLP
- International Application: PCT/EP2019/080137 WO 20191104
- International Announcement: WO2020/094587 WO 20200514
- Main IPC: G01J3/51
- IPC: G01J3/51 ; G01J3/50 ; G01J1/42 ; G01J3/02 ; G01J3/46 ; H01L31/0216 ; H04N5/235

Abstract:
A sensor package includes a semiconductor sensor chip having multiple light sensitive regions each of which defines a respective light sensitive channel. An optical filter structure is disposed over the sensor chip and includes filters defining respective spectral functions for different ones of the light sensitive channels. In particular, the optical filter structure includes at least three optical filters defining spectral functions for tristimulus detection by a first subset of the light sensitive channels, and at least one additional optical filter defining a spectral function for spectral detection by a second subset of the light sensitive channels encompassing a wavelength range that differs from that of the first subset of light sensitive channels.
Public/Granted literature
- US20210389181A1 PHOTOSENSORS FOR COLOR MEASUREMENT Public/Granted day:2021-12-16
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