US Patent No. 9,307,588

SYSTEMS AND METHODS FOR DIMMING OF A LIGHT SOURCE


Patent No. 9,307,588
Issue Date April 05, 2016
Title Systems And Methods For Dimming Of A Light Source
Inventorship Hang Fai Li, Ma On Shan (HK)
Ping Ho Yee, Kwai Chung (HK)
Hoi Kuen Chan, Fanling (HK)
Chiu Ho Wong, Kowloon (HK)
Assignee ECOSENSE LIGHTING INC., New York, NY (US)

Claim of US Patent No. 9,307,588

1. A system for dimming a lamp, comprising:
a lamp electronics facility with an operational duty cycle and providing power to a lamp light source, wherein the lamp electronics
facility is adapted to accept a dimming input signal to control a default dimming function, the dimming input signal at least
in part derived from a dimming device that is external to the lamp; and

a fast startup dimming control override facility that overrides the dimming input signal during startup of the lamp to override
the default dimming function through forcing the lamp electronics facility to operate with a higher than operational duty
cycle to deliver higher than operational power to the lamp light source during a dimming current level startup condition,
the dimming current level startup condition representing a current level to the lamp light source that is less than a current
required to produce an illumination level by the lamp light source that corresponds to the dimming input signal,

wherein an override condition is removed when an operational current level required to produce an illumination level by the
lamp light source that corresponds to the dimming input signal to the lamp light source is reached.