Patent · US Active

Optical sensor arrangement and method for light sensing

US11022487B2 · kind B2 · utility

1Cited by

2References

14Claims

0Family size

Assignee

AMS INTERNATIONAL AG · CH

Inventors

Bernhard Greimel-Rechling · Gleisdorf, AT
Peter Bliem · Premstätten, AT
Herbert Lenhard · Graz, AT
Josef Kriebernegg · Graz, AT
Joachim Lechner · Gleisdorf, AT
Christian Halper · Olbendorf, AT

Key dates

Filing date	Aug 7, 2017
Grant date	Jun 1, 2021
Priority date	—
Expiry date	Feb 2, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG01J2001/446
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An optical sensor arrangement comprises a photodiode (11), an integrator (12) with an integrator input (15) coupled to the photodiode (11), a comparator (13) with a first input (18) coupled to an integrator output (16) of the integrator (12), and a reference capacitor circuit (14) that is coupled to the integrator input (15) and is designed to provide a charge package to the integrator input (15). In a start phase (A), charge packages are provided to the integrator input (15), until a comparator input voltage (VIN) at the first input (18) of the comparator (13) crosses a comparator switching point.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.