Patent ID: 9719642
Date: 2017-08-01
CPC Classifications: F21K,F21S,F21V,F21W,F21Y,H02M,H04N,H05B,H05K

Claim:
1. An LED light system configured for providing broad-spectrum white light suitable for a commercial image recording in a form factor of a fluorescent tube, the LED light system comprising: a housing having ends and including a support structure in a form of an elongated and narrow surface and having a top side and a bottom side; a plurality of first LEDs mounted on the top side of the support structure and configured to emit broad-spectrum white light in a first predetermined Kelvin temperature range of daylight; a plurality of second LEDs mounted on the top side of the support structure and configured to emit broad-spectrum white light in a second predetermined Kelvin temperature range of tungsten; circuitry mounted to the support structure including an LED driver circuit and including means for selectively electronically switching between driving either (i) the first LEDs while the second LEDs are off and (ii) the second LEDs to provide light while the first LEDs are off, wherein the first and second temperature ranges are nonoverlapping, and including a printed circuit board mounted to the support structure for carrying electrical power from a connection to the LED driver and then to the first and second LEDs; an elongate cover extending substantially a length of the support structure and covering the top side of the support structure for diffusing light emitted by the first and second LEDs; and wherein the housing and cover together have a linear form factor of a fluorescent tube light having no greater than a length of four feet and a diameter of no greater than about one to one and a half inches, wherein, at one end there is a connection for receiving AC power to be provided to the LED light system and wherein the LED light system is configured to use the power received only at the one said end, and wherein the first and second LEDs are disposed in a plurality of rows and are equally distributed along the length of the top side of the support structure such that the first LEDs and the second LEDs, whichever are on, evenly emit light along the length of the top side of the support structure, wherein the light is diffused by the cover and is suitable for the commercial image recording both when the emitted light from the LED light system is in the first temperature range of daylight and when the emitted light from the LED light system is in the second temperature range of tungsten.