A sunlight exposure indicator device is disclosed that can determine the amount of time (e.g., hours) of PAR sunlight that occurs in a specific area for the optimal growth of a plant, as corresponds to the plant industry common designations of Full Shade, Partial Shade, Partial Sun and Full Sun. These designations can be used to determine plant selection for all types of plants including grasses, shrubs, flowers, vegetables and herbs, and trees. This device utilizes irreversible, slow-reacting, photochromic pigments applied to a substrate. Using multiple instances of this device will allow someone to easily test and accurately determine the amount of PAR sunlight (hours) received during a one-day sunlight cycle in multiple spots simultaneously. The sunlight exposure indicator device is a one-time-use, non-electronic, disposable device.

A plant growing apparatus irradiates plants by switching white light from a white light source into light of a color of a specific wavelength by using a partition plate that partitions a light source placement space and a plant growing space. The plant growing apparatus includes: a white light source emitting white light and being provided to face plants to be grown; a light source placement space to place the white light source; and a plant growing space to place the plants to be grown; a housing facility blocking entry of external light; and a partition plate that extends in the housing facility in a horizontal direction, and includes a filter blocking at least one of temperature transfer and air circulation between the light source placement space and the plant growing space, and transmitting light of a specific wavelength in the white light from the white light source.

An annular LED grow light is disclosed, which comprises a radiator, a light source board, and a power supply box. The light source board is composed of a PCB light board and a plurality of LED lamp beads, wherein the LED lamp beads are arranged on the PCB light board in an annular array about a center. The beneficial effects of the present disclosure are: the photosynthetic photon flux density (PPFD) is distributed more evenly after the LED lamp beads are arranged in an annular array about the center, thus the effective irradiated area is larger, and the cost has been saved.

The LED grow-light system includes one or more grow-light canopies with linear LED light bars to provide upward and/or downward lighting in a central illumination area. The LED grow-light system or grow-light canopies are preferably constructed using T-slot interconnects that lock into T-channels of the T-slot bars and/or T-slot light bars and the LED grow-light systems are housed in a controlled modular grow-light containers that include sky-light structures and/or light tubes that allow the controlled modular grow containers to be stacked or placed next to each other and minimize the footprint for growing plants.

There is described a method of growing a plant having at least one light absorbing pigment, the at least one light absorbing pigment absorbing optical energy at absorbing wavelengths. The method generally has illuminating the plant growing light, the growing light having optical energy within at least two spectral regions each encompassing a given wavelength, the given wavelengths being out of tune with the absorbing wavelengths of the at least one light absorbing pigment, the at least two spectral regions being selected from a group consisting of a first spectral region below 400 nm, a second spectral region at about 430 nm, a third spectral region at about 480 nm, a fourth spectral region at about 595 nm, a fifth spectral region at about 640 nm, a sixth spectral region at about 660 nm and a seventh spectral region at about 675 nm.

A multifunctional light source assembly and a multifunctional desk lamp are disclosed. The multifunctional desk lamp includes a base assembly, a lamp head assembly, and a lamp arm assembly; one end of the lamp arm assembly is connected with the base assembly, and the other end is connected with and supports the lamp head assembly; the lamp head assembly is internally provided with the multifunctional light source assembly, the multifunctional light source assembly includes an illumination LED chip, a plant grow light LED chip and an ultraviolet LED chip. The illumination chip, the plant grow light chip and the ultraviolet chip are respectively connected to a controller, which respectively controls the three chips, through the on and off of currents, so that functions such as illumination for reading and writing, sterilization, plant growth assistance can be achieved.

A mobile light exposure device or improving the yield and quality of biological material has a first module for emitting one or more light pulses, which includes a light treatment panel whose surface area is between 0.01 m.sup.2 and 10 m.sup.2, a second module or adjusting the optical power density of the treatment panel and optionally adjusting the temperature of the panel, and a means of locomotion for moving the device at a speed of between 1 and 10 km/h. The optical power density of the panel is between 100 W/m.sup.2 and 10,000 W/m.sup.2, preferably between 300 W/m.sup.2 and 3,000 W/m.sup.2, and the light pulses delivered to the biological material are of identical or different wavelengths and of durations less than or equal to two seconds.

A system for autonomous monitoring and/or optimization of plant (140) growth is provided. The system may include actuation devices configured to interact with an agricultural area (120), image sensors (130) configured to capture images (170) of a plant (140) in the agricultural area (120), and a processor (150) in communication with the image sensors (130) and the actuation devices. The processor (150) may be configured to store, via a memory (160), a first image (170) of the agricultural area (120) captured prior to a first actuation of the actuation devices; and trigger, synchronously with the first actuation, the image sensors (130) to capture a second image (180) of the agricultural area (120). The processor (150) may be further configured to detect features of the plant (140) in the first and second images (170) of the agricultural area (120); evaluate the detected features of the plant (140) for visual plant qualities (210); and dynamically set one or more parameters (190) of the actuation devices based on the visual plant qualities (210).

The invention relates to a controlled environment agriculture for plant cultivation using artificial lights. The artificial lights comprise an array of light emitting diodes fabricated using gallium nitride, each gallium nitride operable over a wavelength of 380 nm to 900 nm. The array of light emitting diodes include at least one integrated drive controller and at least sensor. The controlled environment agriculture includes at least an imaging device and a control module. The control module comprises a machine learning module and an aggregator module configured connected to at least one sensor and at least one imaging device to aggregate various parameters including environmental data, and plant phenotyping data associated with the plants. Based on the aggregated The control module determines the spectral requirements of the plants for optimal growth based on at least one parameter aggregated from at least one sensor, at least one imaging device and a database to adjust the spectral light in the array of light emitting diodes in real time. The control module is associated with a power module for regulating the electrical power required by the array of light emitting diodes to optimize power consumption. In at least one implementation, the control module and the power module are dynamically controlled in real time by implementing machine learning algorithms to automate the controlled environment for agriculture to optimize and control the spectral and power requirements of the array of light emitting diodes.

The present utility model discloses a novel splicing type plant lamp which is provided with a power supply body and lamp bodies electrically connected with the power supply body, wherein first electrical assemblies are disposed on end portions of two ends of the power supply body correspondingly, and second electrical assemblies electrically connected with the first electrical assemblies are disposed on two ends of the lamp bodies correspondingly. The novel splicing type plant lamp has the beneficial effects that the problems of complex assembly and difficult disassembly of the plant lamp can be effectively avoided, and the transportation cost and labor intensity are reduced, so that the disassembly and assembly efficiency of the plant lamp is improved, the working efficiency is improved, the product competitiveness of the plant lamp is improved, and the efficiency of supplementing light to plants is improved. Different lamp bars can be freely combined, for example, the lamp body disposed on one side of the power supply body is composed of three lamp bars, and the lamp body disposed on the other side of the power supply body may be composed of four lamp bars, so that the plant lamp is suitable for different use scenes.