US Patent No. 10,415,768

ILLUMINATING WITH A MULTIZONE MIXING CUP


Patent No. 10,415,768
Issue Date September 17, 2019
Title Illuminating With A Multizone Mixing Cup
Inventorship Raghuram L. V. Petluri, Los Angeles, CA (US)
Paul Kenneth Pickard, Los Angeles, CA (US)
Robert Fletcher, Los Angeles, CA (US)
Assignee ECOSENSE LIGHTING INC., Los Angeles, CA (US)

Claim of US Patent No. 10,415,768

1. A method of blending multiple light channels to produce a preselected illumination spectrum of substantially white light, the method comprising:providing a common housing with an open top and openings at the bottom, each bottom opening placed over an LED illumination source;
placing a domed lumo converting appliance (DLCA) over each bottom opening and over each LED illumination source;
altering the illumination produced by a first LED illumination source by passing the illumination produced by the first LED illumination source through a first domed lumo converting appliance (DLCA) associated with the common housing to produce a blue channel preselected spectral output;
altering the illumination produced by the second LED illumination source by passing the illumination produced by a second LED illumination source through a second DLCA associated with the common housing to produce a red channel preselected spectral output;
altering the illumination produced by the third LED illumination source by passing the illumination produced by a third LED illumination source through a third DLCA associated with the common housing to produce a yellow/green channel preselected spectral output;
altering the illumination produced by the fourth LED illumination source by passing the illumination produced by a fourth LED illumination source through a fourth DLCA associated with the common housing to produce a cyan channel preselected spectral output;
blending the blue, red, yellow/green, and cyan spectral outputs as the blue, red, yellow/green, and cyan spectral outputs exit the common housing;
wherein the first, second, and third LED illumination sources are blue LEDs and the fourth LED illumination is cyan LEDs;
wherein the blue LEDs have a substantially 440-475 nm output and the cyan LEDs have a substantially 490-515 nm output;
wherein the first, second, third, and fourth DLCAs each comprise a plurality of photoluminescence materials, the plurality of photoluminescence materials comprising:
one or more of a first type of photoluminescence material that emits light at a peak emission between about 515 nm and 590 nm in response to the associated LED string emission,
one or more of a second type of photoluminescence material that emits light at a peak emission between about 590 nm and about 700 nm in response to the associated LED string emission; and,
wherein one or more of the spectral outputs of the blue, red, green/yellow, and red channels are substantially:
32.8% for wavelengths between 380-420 nm, 100% for wavelengths between 421-460 nm, 66.5% for wavelengths between 461-500 nm, 25.7% for wavelengths between 501-540 nm, 36.6% for wavelengths between 541-580 nm, 39.7% for wavelengths between 581-620 nm, 36.1% for wavelengths between 621-660 nm, 15.5% for wavelengths between 661-700 nm, 5.9% for wavelengths between 701-740 nm and 2.1% for wavelengths between 741-780 nm for the blue channel;
3.9% for wavelengths between 380-420 nm, 6.9% for wavelengths between 421-460 nm, 3.2% for wavelengths between 461-500 nm, 7.9% for wavelengths between 501-540 nm, 14% for wavelengths between 541-580 nm, 55% for wavelengths between 581-620 nm, 100% for wavelengths between 621-660 nm, 61.8% for wavelengths between 661-700 nm, 25.1% for wavelengths between 701-740 nm and 7.7% for wavelengths between 741-780 nm for the red channel;
1% for wavelengths between 380-420 nm, 1.9% for wavelengths between 421-460 nm, 5.9% for wavelengths between 461-500 nm, 67.8% for wavelengths between 501-540 nm, 100% for wavelengths between 541-580 nm, 95% for wavelengths between 581-620 nm, 85.2% for wavelengths between 621-660 nm, 48.1% for wavelengths between 661-700 nm, 18.3% for wavelengths between 701-740 nm and 5.6% for wavelengths between 741-780 nm for the yellow/green channel; or
0.2% for wavelengths between 380-420 nm, 0.8% for wavelengths between 421-460 nm, 49.2% for wavelengths between 461-500 nm, 100% for wavelengths between 501-540 nm, 58.4% for wavelengths between 541-580 nm, 41.6% for wavelengths between 581-620 nm, 28.1% for wavelengths between 621-660 nm, 13.7% for wavelengths between 661-700 nm, 4.5% for wavelengths between 701-740 nm and 1.1% for wavelengths between 741-780 nm for the cyan channel.