Patent · US Active

Photon detector with a paralyzable photon-sensitive element, in particular SPAD, and distance measuring device comprising said type of photon detector

US9201138B2 · kind B2 · utility

42Cited by

3References

11Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andreas Eisele · Echterdingen, DE
Oliver Wolst · Walzbachtal, DE
Bernd Schmidtke · Neumarkt am Wallersee, AT

Key dates

Filing date	Jul 15, 2010
Grant date	Dec 1, 2015
Priority date	—
Expiry date	Aug 25, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG02F2203/52
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A photon detector is disclosed that includes, in addition to an immobilizable photon-sensitive element, a photon transmission element. The photon detector is configured such that it can vary photon intensities impacting upon the photon-sensitive element and transmitted by the photon transmission element, for example, by modifying an absorption property or a defocusing property of the photon transmission element. Also, the immobile photon-sensitive element, which can be, for example a SPAD (Single Photon Avalanche Diode), always operates close to the optimal operating range and below an immobilization range. A distancing device that includes this type of photo detector is also disclosed.

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