Patent · US Active

Light reflectance based detection

US9801257B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

PHILIPS LIGHTING HOLDING B.V. · NL

Inventors

RUBEN RAJAGOPALAN · Neuss, DE
HARRY BROERS · 's-Hertogenbosch, NL

Key dates

Filing date	Feb 12, 2015
Grant date	Oct 24, 2017
Priority date	—
Expiry date	Feb 12, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/40
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A lighting system comprising one or more lighting devices mounted on a pole and operable to illuminate an outdoor environment; a photosensor, wherein a sensing region associated with the photosensor is directed onto a surface of the pole to detect light reflected off said surface; and a controller comprising an input for receiving a signal output from the photosensor. The controller is configured to: detect an object in the outdoor environment based on detecting a change in the light reflected off the surface in response to receiving said signal; and control the one or more lighting devices in response to detecting the object.

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