US Patent No. 10,197,226

ILLUMINATING WITH A MULTIZONE MIXING CUP


Patent No. 10,197,226
Issue Date February 05, 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. 10,197,226

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 having an open top, a plurality of reflective cavities with open bottoms, and each cavity having an open top, each open bottom placed over an LED illumination source;
affixing a volumetric lumo converting appliance (VLCA) within a portion of the internal volume via fitting each VLCA against the wall of a reflective cavity of each of the plurality of reflective cavities, with the portion being nearest the open top of each cavity;
altering a first illumination produced by a first LED illumination source by passing the first illumination produced by the first LED illumination source through a first VLCA to produce a blue channel preselected spectral output;
altering a second illumination produced by a second LED illumination source by passing the second illumination produced by the second LED illumination source through a second VLCA to produce a red channel preselected spectral output;
altering a third illumination produced by a third LED illumination source by passing the third illumination produced by the third LED illumination source through a third VLCA to produce a yellow/green channel preselected spectral output;
altering a fourth illumination produced by a fourth LED illumination source by passing the fourth illumination produced by the fourth LED illumination source through a fourth VLCA 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 comprise one or more blue LEDs and the fourth LED illumination source comprises one or more blue LEDs, one or more cyan LEDs, or a combination thereof;
wherein the blue LEDs have a substantially 440-475 nm output and the cyan LEDs have a substantially 490-515 nm output;
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.