Patent · US Expired

Photosensor for a transmitted light method used for detecting the direction of movement of intensity maxima and intensity minima of an optical standing wave

US7323759B2 · kind B2 · utility

1Cited by

7References

10Claims

0Family size

Assignee

Forschungszentrum Jülich GmbH · DE

Inventors

Dietmar Knipp · Hennef (Sieg), DE
Helmut Stiebig · Niederzier, DE
Hans-Joachim Büchner · Ilmenau, DE
Gerd Jager · Ilmenau, DE

Key dates

Filing date	Jun 12, 2002
Grant date	Jan 29, 2008
Priority date	—
Expiry date	Sep 22, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/548
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A photosensor for a transmitted-light method for detecting the intensity profile of an optical standing wave, with a transparent substrate, with a semiconductor component, and with at least three contacts, is characterized by the fact that two semiconductor components are connected with each other, such that the first semiconductor component and the second semiconductor component each have a photoelectrically active first semiconductor layer, and such that the two photoelectrically active semiconductor layers have a fixed phase relation to each other, which is adjusted by at least one photoelectrically inactive layer.

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