# US 11,297,775 B1 · LED grow light system with time varying light intensity

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- Number: US 11,297,775 B1
- Document ID: US11297775B1
- Status: Granted
- Kind: B1
- Application number: 17/382,646
- Filed: 2021-07-22
- Granted: 2022-04-12
- Earliest claimed: 2021-07-22
- Assignees: Boulder Lamp, Inc.
- Applicants: Boulder Lamp, Inc.
- Inventors: Fazle Quazi
- Web page: https://patentgrep.com/patent/US11297775B1

## CPC

- A01G 7/045: {with electric lighting}
- A61L 2/084: Visible light
- A61L 2/10: Ultraviolet [UV] radiation
- A61L 2/24: Apparatus using programmed or automatic operation
- A61L 2/26: Accessories
- F21S 4/28: rigid, e.g. LED bars
- F21V 23/005: {the substrate is supporting also the light source}
- H05B 45/20: Controlling the colour of the light
- H05B 47/165: following a pre-assigned programmed sequence; Logic control [LC]
- A01G 9/249: {Lighting means (with special arrangements for promoting growth A01G7/045)}
- A61L 2103/05: Living organisms or biological materials
- A61L 2202/11: Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
- A61L 2202/14: Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
- F21S 8/06: by suspension
- F21Y 2113/30: {of visible and non-visible spectrum}
- F21Y 2115/10: Light-emitting diodes [LED]
- H05B 47/19: via wireless transmission
- Y02P 60/14: Measures for saving energy, e.g. in green houses
- A01G: HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING (picking of fruits, vegetables, hops or the like A01D46/00; propagating unicellular algae C12N1/12)
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- 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
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A LED grow light array and method for controlling thereof, aimed at increasing plant canopy light penetration without stationary hot spots, providing antimicrobial light to eliminate microorganism on plants, providing pulsing canopy penetrating and microbial light without a dark period, and reducing energy consumption, the LED grow light array comprising: a LED grow light array, the array comprising at least four light bars, wherein the light bars comprise discrete photosynthetic LED chips of different types based on the wavelength of light they emit, the light they emit being either blue, red, or white light, or a combination thereof, wherein blue light wavelength ranges from 405 nm to 450 nm, red light wavelength ranges from 630 nm to 720 nm, and white light is a combination of wavelengths that ranges from 400 nm to 700 nm, each type of photosynthetic LED chip forming a set of chips; wherein the bars are in a series and spaced evenly over a given plant growing area; wherein the light bars further comprise discrete antimicrobial LED chips of different types based on the wavelength of light they emit, the light being light with antimicrobial properties between the wavelengths of 100 nm and 405 nm, each type forming a set of chips; wherein each light bar comprises a circuit board to mount said discrete photosynthetic and antimicrobial LED chips thereon; at least one LED driver to provide power to the LED chips; at least one microprocessor to control the at least one LED driver; and a lighting program sent to the microprocessor designed to control the at least four light bars and the sets of photosynthetic and antimicrobial LED chips individually.

## Claims

### Claim 1

A LED grow light array for increasing plant canopy light penetration without increasing energy consumption, providing antimicrobial light to eliminate microorganism on plant, providing pulsing canopy penetrating and microbial light without a dark period, the LED grow light array comprising:
a) a LED grow light array, the array comprising at least four light bars, wherein the light bars comprise discrete photosynthetic LED chips of different types based on the wavelength of light they emit, the light they emit being either blue, red, or white light, or a combination thereof, wherein blue light wavelength ranges from 405 nm to 450 nm, red light wavelength ranges from 600 nm to 720 nm, and white light is a combination of wavelengths that ranges from 400 nm to 700 nm, each type of photosynthetic LED chip forming a set of chips;
b) wherein the bars are spaced evenly over a given plant growing area;
c) wherein the light bars further comprise discrete antimicrobial LED chips of different types based on the wavelength of light they emit, the light being light with antimicrobial properties between the wavelengths of 100 nm and 405 nm, each type forming a set of chips;
d) wherein each light bar comprises a circuit board to mount said discrete photosynthetic and antimicrobial LED chips thereon;
e) at least one LED driver to provide power to the LED chips;
f) at least one microprocessor to control the at least one LED driver; and
g) a lighting program sent to the microprocessor designed to control the at least four light bars and the sets of photosynthetic and antimicrobial LED chips individually.

### Claim 2 (depends on 1)

The LED grow light array of claim 1, wherein at least one set of the photosynthetic LED chips are powered throughout the lighting program with at least 1 W.

### Claim 3 (depends on 2)

The LED grow light array of claim 2, wherein the antimicrobial LED chips are not powered unless specified by the lighting program.

### Claim 4

A LED grow light array for increasing plant canopy light penetration without increasing energy consumption, providing antimicrobial light to eliminate microorganism on plant, providing pulsing canopy penetrating and microbial light without a dark period, the LED grow light array comprising:
a) a LED grow light array, the array comprising at least four light bars, wherein the light bars comprise discrete photosynthetic LED chips of different types based on the wavelength of light they emit, the light they emit being either blue, red, or white light, or a combination thereof, wherein blue light wavelength ranges from 405 nm to 450 nm, red light wavelength ranges from 600 nm to 720 nm, and white light is a combination of wavelengths that ranges from 400 nm to 700 nm, each type of photosynthetic LED chip forming a set of chips;
b) wherein the bars are spaced evenly over a given plant growing area;
c) wherein the light bars further comprise discrete antimicrobial LED chips of different types based on the wavelength of light they emit, the light being light with antimicrobial properties between the wavelengths of 100 nm and 405 nm, each type forming a set of chips;
d) wherein each light bar comprises a circuit board to mount said discrete photosynthetic and antimicrobial LED chips thereon;
e) at least one LED driver to provide power to the LED chips;
f) at least one microprocessor to control the at least one LED driver; and
g) a lighting program sent to the microprocessor designed to control the at least four light bars and the sets of photosynthetic and antimicrobial LED chips individually;
h) wherein at least one set of the photosynthetic LED chips are powered throughout the lighting program with at least 1 W;
i) wherein the antimicrobial LED chips are not powered unless specified by the lighting program; and
j) wherein the lighting program designates different amounts of energy to be provided to the outer and inner light bars of the array.

### Claim 5 (depends on 4)

The LED grow light array of claim 4, wherein the lighting program designates that the outer light bars receive more continuous power than the inner light bars.

### Claim 6 (depends on 4)

The LED grow light array of claim 4, wherein the lighting program designates that the light bars, in sequential order, receive increased amounts of power for a given amount of time.

### Claim 7 (depends on 6)

The LED grow light array of claim 6, wherein the lighting program repeats the sequential order of designating increase amounts of power for a given amount of time.

### Claim 8 (depends on 6)

The LED grow light array of claim 6, wherein the lighting program repeats, in reverse order, the sequential order of designating increase amounts of power for a given amount of time.

### Claim 9 (depends on 6)

The LED grow light array of claim 6 wherein the given amount of time is at least 0.05 seconds.

### Claim 10 (depends on 4)

The LED lighting array of claim 4, wherein the lighting program designates that the light bars receive at least two pulses of additional power in a row beginning with the first light bar and moving to the next light bar sequentially, the pulses being at least 0.05 seconds each.

### Claim 11 (depends on 4)

The LED grow light array of claim 4, wherein the lighting program designates that the light bars receive at least three pulses of additional power in a row beginning with the first light bar and moving to the next light bar sequentially, the pulses being at least 0.05 seconds each.

### Claim 12 (depends on 4)

The LED grow light array of claim 4, wherein the lighting program designates that the light bars receive at least four pulses of additional power in a row beginning with the first light bar and moving to the next light bar sequentially, the pulses being at least 0.05 seconds each.

### Claim 13 (depends on 4)

The LED grow light array of claim 4, wherein the lighting program designates an initial power feed to all the light bars and therein after designates increased power to each light bar in sequential order for a given period of time.

### Claim 14 (depends on 4)

The LED grow light array of claim 4, wherein the lighting program designates an initial power feed to all the light bars and therein after designates increased power to the interior light bars in sequential order for a given period of time.

### Claim 15 (depends on 14)

The LED grow light array of claim 14 wherein the lighting program designates a higher initial power feed to the outside light bars than the inside light bars.

### Claim 16 (depends on 4)

The LED grow light array of claim 4, wherein the lighting program designates a higher power feed for the set of photosynthetic LED chips emitting 660 nm for a given period of time in each bar sequentially.

### Claim 17 (depends on 16)

The LED grow light array of claim 16, wherein the given period of time is at least 0.05 seconds.

### Claim 18 (depends on 4)

The LED grow light array of claim 4, wherein the lighting program designates a higher power feed for the set of photosynthetic LED chips emitting 450 nm for a given period of time in each bar sequentially.

### Claim 19 (depends on 18)

The LED grow light array of claim 18, wherein the given period of time is at least 0.05 seconds.

### Claim 20 (depends on 4)

The LED grow light array of claim 4, wherein the lighting program designates a higher power feed for the set of photosynthetic LED chips emitting 730 nm for a given period of time in each bar sequentially.

### Claim 21 (depends on 20)

The LED grow light array of claim 20, wherein the given period of time is at least 0.05 seconds.

### Claim 22 (depends on 4)

The LED grow light array of claim 4, wherein the lighting program designates a higher power feed for the set of antimicrobial LED chips emitting 385 nm for a given period of time in each bar sequentially.

### Claim 23 (depends on 22)

The LED grow light array of claim 22, wherein the given period of time is at least 0.000005 seconds.

### Claim 24 (depends on 4)

The LED grow light array of claim 4, wherein the lighting program designates that at least some photosynthetic LED chips are powered and at least one set of antimicrobial LED chips are powered on for each light bar sequentially with at least 1 W for at least 0.000005 seconds.

### Claim 25 (depends on 1)

The LED grow light array of claim 1 further comprising wireless communication means for the microprocessor.

### Claim 26 (depends on 1)

The LED grow light array of claim 1, wherein the lighting program sets an initial level of light for each light bar and the photosynthetic LED sets thereon, and wherein thereafter increases and decreases in power to light bars are continuous to reach a designated power amount over a designated amount of time.

### Claim 27 (depends on 4)

The LED grow light array of claim 4, wherein the lighting program designates an initial power amount for the photosynthetic LED chips in all light bars for a 1st set time period, thereafter power to the photosynthetic LED chips in at least one light bar is increased to a level 2 power amount for a 2nd set time period, thereafter power to the photosynthetic LED chips in the at least one light bar is increased to a level 3 power amount for a 3rd set time period, and thereafter the power to the photosynthetic LED chips in the at least one light bar is reset to the initial power amount.

### Claim 28 (depends on 27)

The LED grow light array of claim 27, wherein a pulse of power is sent to at least some of the antimicrobial LED chips in each light bar in sequence for a time period of at least 0.000005 s.

### Claim 29 (depends on 27)

The LED grow light array of claim 27, wherein after the power to the photosynthetic LEDs in the at least one light bar is increased to the level 2 power for the 2nd set time period, power to the photosynthetic LEDs of a next light bar in the sequence is increased to the level 2 power for the 2nd set time period, and thereafter power to the photosynthetic LED chips in the next light bar is increased to the level 3 power amount for the 3rd set time period, and thereafter the power to the photosynthetic LED chips in the next light bar is reset to the initial power amount.

### Claim 30

A method for lighting a grow area, the method comprising the steps of:
a) providing a LED grow light array, the array comprising at least four light bars spaced evenly over the grow area, wherein the light bars comprise discrete photosynthetic LED chips of different types based on the wavelength of light they emit, the light they emit being either blue, red, or white light, or a combination thereof, wherein blue light wavelength ranges from 405 nm to 450 nm, red light wavelength ranges from 600 nm to 720 nm, and white light is a combination of wavelengths that ranges from 400 nm to 700 nm, each type of photosynthetic LED chip forming a set of chips;
b) providing on the light bars discrete antimicrobial LED chips of different types based on the wavelength of light they emit, the light being light with antimicrobial properties between the wavelengths of 100 nm and 405 nm, each type forming a set of chips, wherein the antimicrobial LED chips are not powered unless specified by the program;
c) providing a driver to power the light bars and discrete sets of LED chips;
d) providing a microprocessor to control the driver, the microprocessor capable of receiving a lighting program which designates how the driver is controlled; and
e) providing a lighting program designed to control the at least four light bars and the sets of photosynthetic and antimicrobial LED chips individually.

### Claim 31 (depends on 30)

The method of claim 30 further comprising providing the lighting program to the microprocessor via wireless means.