Patent · US Active

Semiconductor sensor

US11114574B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Daniel Dietze · Regensburg, DE
Tim Boescke · Dresden, DE
Wolfgang Zinkl · Tegernheim, DE

Key dates

Filing date	Jun 13, 2018
Grant date	Sep 7, 2021
Priority date	—
Expiry date	Oct 8, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02B5/282
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A semiconductor sensor includes a detector chip that detects green light and an interference filter that optically precedes the detector chip and is permeable to green light and impermeable and reflective to red light and near-infrared radiation. A color filter optically precedes the interference filter. The color filter has a transparency of at least 60% for green light and has an absorbing effect for red light and near-infrared radiation. The semiconductor sensor appears gray or black in the region of the interference filter independently of the angle.

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