# US 11,028,976 B2 · Illuminating with a multizone mixing cup

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,028,976 B2
- Document ID: US11028976B2
- Status: Granted
- Kind: B2
- Application number: 16/048,251
- Filed: 2018-07-28
- Published: 2019-05-23
- Granted: 2021-06-08
- Earliest claimed: 2016-01-28
- Assignees: Ecosense Lighting Inc.
- Applicants: EcoSense Lighting, Inc.
- Inventors: Raghuram L. V Petluri; Paul Kenneth Pickard; Robert Fletcher
- Web page: https://patentgrep.com/patent/US11028976B2

## CPC

- F21K 9/62: using mixing chambers, e.g. housings with reflective walls
- F21K 9/64: using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
- F21V 3/04: characterised by materials, surface treatments or coatings
- F21V 7/0083: {Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane (combination of two or more reflectors F21V7/0025)}
- F21V 9/30: Elements containing photoluminescent material distinct from or spaced from the light source (shades F21V1/17; globes, bowls or cover glasses F21V3/08, F21V3/12; refractors F21V5/10; reflectors F21V7/26, F21V7/30; elements with provision for controlling the spectral properties or intensity F21V9/40)
- F21V 9/38: Combination of two or more photoluminescent elements of different materials
- F21V 13/14: the elements being filters or photoluminescent elements, reflectors and refractors
- F21Y 2103/10: comprising a linear array of point-like light-generating elements
- F21Y 2105/10: comprising a two-dimensional [2D] array of point-like light-generating elements
- F21Y 2113/13: comprising an assembly of point-like light sources
- F21Y 2115/10: Light-emitting diodes [LED]
- F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

## Abstract

An optical cup which mixes multiple channels of light to form a blended output, the device having discreet zones or channels including a plurality of reflective cavities each having a remote phosphor light converting appliance covering a cluster of LEDs providing a channel of light which is reflected upward. The predetermined blends of phosphors provide a predetermined range of illumination wavelengths in the output.

## Claims

### Claim 1

A method of blending multiple light channels to produce a preselected illumination spectrum, 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 the each bottom opening and over each LED illumination source;
altering the illumination produced by a first LED illumination source by passing it 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 a second LED illumination source by passing it through a second DLCA associated with the common housing to produce a red channel preselected spectral output;
altering the illumination produced by a third LED illumination source by passing it through a third DLCA associated with the common housing to produce a yellow/green channel preselected spectral output;
altering the illumination produced by a fourth LED illumination source by passing it 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 they 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 nms output and the cyan LEDs have a substantially 490-515 nms output; and,
wherein each DLCA provides at least one of Phosphors A-F.

### Claim 2 (depends on 1)

The method of claim 1 wherein:
phosphor blend “A” is Cerium doped lutetium aluminum garnet (Lu3Al5O12) with an emission peak range of 530-540 nms;
phosphor blend “B” is Cerium doped yttrium aluminum garnet (Y3Al5O12) with an emission peak range of 545-555 nms;
phosphor blend “C” is Cerium doped yttrium aluminum garnet (Y3Al5O12) with an emission peak range of 645-655 nms;
phosphor blend “D” is GBAM:BaMgAl10O17:Eu with an emission peak range of 520-530 nms;
phosphor blend “E” is any semiconductor quantum dot material of appropriate size for an emission wavelength with a 620 nm peak and an emission peak of 625-635 nms; and,
phosphor blend “F” is any semiconductor quantum dot material of appropriate size for an emission wavelength with a 610 nm peak and an emission peak of 605-615 nms.

### Claim 3 (depends on 2)

The method of claim 2 wherein the relative intensity of spectral output of the blue channel is 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.

### Claim 4 (depends on 2)

The method of claim 2 wherein the relative intensity of spectral output of the red channel is substantially 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.

### Claim 5 (depends on 2)

The method of claim 2 wherein the relative intensity wherein the relative intensity of spectral output of the yellow/green channel is substantially 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.

### Claim 6 (depends on 2)

The method of claim 2 wherein the relative intensity of spectral output of the cyan channel is substantially 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.

### Claim 7 (depends on 2)

The method of claim 2 wherein the relative intensity of spectral output of the blue channel is 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;
wherein the relative intensity of spectral output of the red channel is substantially 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;
wherein the relative intensity of spectral output of the yellow/green channel is substantially 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; and,
wherein the relative intensity of spectral output of the cyan channel is substantially 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.

### Claim 8

A method of blending multiple light channels to produce a preselected illumination spectrum, 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;
placing a lumo converting device over each cavity's open top;
altering the illumination produced by a first LED illumination source by passing it through a first lumo converting appliance (LCA) to produce a blue channel preselected spectral output;
altering the illumination produced by a second LED illumination source by passing it through a second LCA to produce a red channel preselected spectral output;
altering the illumination produced by a third LED illumination source by passing it through a third LCA to produce a yellow/green channel preselected spectral output;
altering the illumination produced by a fourth LED illumination source by passing it through a fourth LCA to produce a cyan channel preselected spectral output;
blending the blue, red, yellow/green and cyan spectral outputs as they 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 nms output and the cyan LEDs have a substantially 490-515 nms output; and,
wherein each LCA provides at least one of Phosphors A-F.

### Claim 9 (depends on 8)

The method of claim 8 wherein at least one of the LED illumination sources is a cluster of LEDs.

### Claim 10 (depends on 8)

The method of claim 8 wherein:
phosphor blend “A” is Cerium doped lutetium aluminum garnet (Lu3Al5O12) with an emission peak range of 530-540 nms;
phosphor blend “B” is Cerium doped yttrium aluminum garnet (Y3Al5O12) with an emission peak range of 545-555 nms;
phosphor blend “C” is Cerium doped yttrium aluminum garnet (Y3Al5O12) with an emission peak range of 645-655 nms;
phosphor blend “D” is GBAM:BaMgAl10O17:Eu with an emission peak range of 520-530 nms;
phosphor blend “E” is any semiconductor quantum dot material of appropriate size for an emission wavelength with a 620 nm peak and an emission peak of 625-635 nms; and,
phosphor blend “F” is any semiconductor quantum dot material of appropriate size for an emission wavelength with a 610 nm peak and an emission peak of 605-615 nms.

### Claim 11 (depends on 10)

The method of claim 10 wherein the relative intensity of spectral output of the blue channel is 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.

### Claim 12 (depends on 10)

The method of claim 10 wherein the relative intensity of spectral output of the red channel is substantially 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.

### Claim 13 (depends on 10)

The method of claim 10 wherein the relative intensity of spectral output of the yellow/green channel is substantially 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.

### Claim 14 (depends on 10)

The method of claim 10 wherein the relative intensity of spectral output of the cyan channel is substantially 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.

### Claim 15 (depends on 10)

The method of claim 10 wherein the relative intensity of spectral output of the blue channel is 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;
wherein the relative intensity of spectral output of the red channel is substantially 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;
wherein the relative intensity of spectral output of the yellow/green channel is substantially 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; and,
wherein the relative intensity of spectral output of the cyan channel is substantially 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.