Patent · US Active

Light-emitting device for detecting passage or smoke and method for manufacturing such a device

US9599465B2 · kind B2 · utility

0Cited by

3References

11Claims

0Family size

Assignee

FINSECUR · FR

Inventors

Christophe Bonazzi · Nanterre, FR
Andrew Gilmour · Almonte, CA

Key dates

Filing date	Dec 30, 2013
Grant date	Mar 21, 2017
Priority date	—
Expiry date	Dec 30, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49107
WIPO fieldControl
WIPO sectorInstruments

Abstract

A light-emitting device to detect passage or smoke in the emitted beam. The device includes a source of invisible radiation, a source of visible laser radiation, an alignment component to align the central axis of the visible radiation with an axis parallel to the central axis of the invisible radiation, and a switch to turn off the visible laser source. The device can further include a housing containing both sources of radiation. The switch is configured to be controlled by the closing of the housing and the source of visible laser radiation is turned off in response to the closure of the housing.

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