US 8,912,905 B2Granted

LED lighting system

OwnerChon Meng Wong, Belinda H. T. Wong +1inventors

InventorsChon Meng Wong, Belinda H. T. Wong, An-Kwok Ian Wong

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Abstract

A lighting system includes at least one lighting apparatus having a light emitting element capable of emitting a controllably variable light output in a region. A position determination subsystem is capable of determining a position in three dimensions of at least one mobile entity within the region. A control subsystem is capable of variably controlling a light output of the at least one lighting apparatus according to the position of the mobile entity. The system may determine position by radio ranging with mobile electronic elements. The system may include multiple lighting elements and may determine light levels according to positions of multiple mobile entities. The system may include a database of information about lighting elements, mobile entities, and lighting plans that may be selected from mobile electronic elements.

Claims16

Dependent claims

A lighting system comprising:

(A) A plurality of lighting apparatus, each having (i) a light emitting element capable of emitting a controllably variable light output in a region, (ii) a position determination subsystem capable of determining a position of at least one mobile entity within the region, and (iii) a control subsystem capable of variably controlling a light output of the at least one lighting apparatus according to a lighting plan associated with the mobile entity;
and
(B) a mobile entity communicating with at least one control subsystem of one lighting apparatus (i) to establish presence within the region of the lighting apparatus, and (ii) to establish identity of the mobile entity;
and further comprising
(C) a database storing information about a plurality of lighting apparatus, said lighting apparatus information including information selected from the set of:
(i) a lighting apparatus identity;
(ii) a lighting apparatus location;
and (iii) a lighting apparatus output level.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/932,608Filed 28 Feb 2011
Published: US 2012/0217882 A130 Aug 2012
Granted: 16 Dec 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification36 codes

F21V 23/0464
Activated by means of a sensor, e.g. motion or photodetectors: the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
F21S 4/28
With light sources held by or within elongate supports: rigid, e.g. LED bars
F21S 8/03
Lighting devices intended for fixed installation: of surface-mounted type
F21V 13/08
Combinations of only two kinds of elements: the elements being filters or photoluminescent elements and reflectors