Patent · US Expired

Holographic sensor, especially for recognition of moisture on a glass pane of a motor vehicle

US7187440B2 · kind B2 · utility

2Cited by

5References

4Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Helmut Sautter · Ditzingen, DE
Stefan Stampfer · Laufenburg (Baden), DE

Key dates

Filing date	Jun 25, 2002
Grant date	Mar 6, 2007
Priority date	—
Expiry date	Jun 25, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG01N21/552
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A holographic sensor for recognizing moisture on a glass pane of a motor vehicle is provided, having a casing, a carrier layer, a diffractive element and an adhesive layer, the diffractive element being fixed, preferably glued, on the carrier layer. The diffractive element may be embodied as an embossed hologram.

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