Patent ID: 7019276
Filing Date: 2006-03-28
Classification: H05B

Abstract:
1. A method of maintaining an ambient light intensity in a building area at a predetermined level, comprising: providing a predetermined level of light intensity for said building area; providing at least one lamp in said building area, wherein at least one of said at least one lamp is a dimmable lamp; providing at least one additional lamp in said building area, wherein each said additional lamp is one of a dimmable lamp and a lamp not capable of being dimmed; obtaining an ambient light intensity level for said building area, said ambient light intensity level being a combination of a natural light level and an artificial light level; comparing said ambient level to said predetermined level of light intensity; if said ambient level differs from said predetermined level, calculating an artificial lighting input to be generated by said at least one lamp and said at least one additional lamp in said building area to attain said predetermined level; wherein said input includes an intensity of a dimmable lamp to be turned on and at least one of a number of lamps to be turned on, a number of lamps to be turned off, a location of a lamp to be turned on and a location of a lamp to be turned off.