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公开(公告)号：US20230342518A1
公开(公告)日：2023-10-26
申请号：US18256030
申请日：2023-03-08
Applicant: SUNTRACKER TECHNOLOGIES LTD.
Inventor： Ian Edward Ashdown
Abstract: The present invention relates to the real-time simulation of sound in three-dimensional virtual environments. In particular, a geometric method based on the principles of acoustic radiosity determines the room impulse responses of a virtual environment with arbitrary polygonal surfaces. The complexity of the method is of the order of the square of the number of patches that define the virtual environment. The room impulse responses are convolved with an audio signal and output through a speaker to simulate reverberation within the virtual environment, which corresponds to a physical environment.
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公开(公告)号：US11590252B2
公开(公告)日：2023-02-28
申请号：US17632442
申请日：2021-07-08
Applicant: SUNTRACKER TECHNOLOGIES LTD.
Inventor： Ian Edward Ashdown
Abstract: Given the complexity of architectural spaces and the need to calculate spherical irradiances, it is difficult to determine how much ultraviolet radiation is necessary to adequately kill airborne pathogens. An interior environment with luminaires is modeled. Spherical irradiance meters are positioned in the model and the direct and indirect spherical irradiance is calculated for each sensor. From this, an irradiance field is interpolated for a volume of interest, and using known fluence response values for killing pathogens, a reduction in the pathogens is predicted. Based on the predicted reduction, spaces are built accordingly, and ultraviolet luminaires are installed and controlled.
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公开(公告)号：US20220287247A1
公开(公告)日：2022-09-15
申请号：US17824810
申请日：2022-05-25
Applicant: Suntracker Technologies Ltd.
Inventor： Ian Edward Ashdown , Wallace Jay Scott
Abstract: Laser light is coupled to optical fibers arranged in a sheet, which may be in the form of netting, mesh or fabric. Scattering centers or bends in the optical fibers allow the coupled light to escape from the sides of the fibers. Depending on the selection of wavelengths for the lasers, the resulting luminous sheet may be used for illumination of crops grown in vertical farms. The laser wavelengths excite plant photopigments for predetermined physiological responses, and the light source intensities may be temporally modulated to maximize photosynthesis and control photomorphogenesis responses. Each laser may be independently controlled, and at least one laser may emit ultraviolet-C radiation. The luminous sheet may be used for purification of air flowing through an air duct.
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公开(公告)号：US11287321B2
公开(公告)日：2022-03-29
申请号：US17419868
申请日：2021-03-22
Applicant: SUNTRACKER TECHNOLOGIES LTD.
Inventor： Ian Edward Ashdown
Abstract: Melanopic dose rate and dose are calculated in a virtual environment. A computer generated model of an actual or planned building is used as the virtual environment. Indirect and direct spherical irradiances are calculated using convex polyhedra throughout the virtual environment, and each is multiplied by a melanopic conversion factor. The two are added, then adjusted for a human's angular responsivity and age. Building design features or lighting devices may be adjusted to provide a required melanopic dose rate. A camera is used to capture a panoramic image, which is calibrated to tristimulus values, and used with the spectral power distribution of the light sources to derive the melanopic dose rate.
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公开(公告)号：US11122747B2
公开(公告)日：2021-09-21
申请号：US17177579
申请日：2021-02-17
Applicant: Suntracker Technologies Ltd.
Inventor： Ian Edward Ashdown , Wallace Jay Scott
Abstract: Laser light emanates from optical components that are mounted on a substrate, each optical component being coupled to an optical fiber that delivers laser radiation combined from multiple lasers. A linear or elliptical holographic diffuser is located to diffuse the light emanating from the optical components. The laser wavelengths excite plant photopigments for predetermined physiological responses, and the light source intensities may be temporally modulated to maximize photosynthesis and control photomorphogenesis responses. Each laser is independently controlled.
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Patent Agency Ranking
公开(公告)号：US11085819B2
公开(公告)日：2021-08-10
申请号：US17015496
申请日：2020-09-09
Applicant: Suntracker Technologies Ltd.
Inventor： Ian Edward Ashdown
Abstract: A means to automate, using fuzzy logic, the classification of spectral power distributions of optical radiation for lighting systems, and more particularly horticultural lighting systems, is presented. After inputting the spectral power distribution of optical radiation from one or more light sources, radial basis function weights for the spectral power distribution are determined and fuzzified preparatory to fuzzy logic classification. Fuzzy if-then rules are then applied, and an aggregate of the rule votes from the fuzzy if-then rules applied is used to classify the spectral power distribution. The system utilizes a spectral sensor, a fuzzifier module, a fuzzy rule database, fuzzy rule engine, an output fuzzifier module, and a means of displaying the spectral power distribution classification.
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公开(公告)号：US11002606B2
公开(公告)日：2021-05-11
申请号：US16500317
申请日：2018-06-15
Applicant: Suntracker Technologies Ltd.
Inventor： Ian Edward Ashdown
IPC: G01J3/50 , H05B47/105 , A01G7/04 , G01J3/46 , G06F30/20 , A01K63/06 , G05B13/02 , G06F111/10
Abstract: Spectral irradiance distributions are calculated within a virtual environment based on arbitrary light source spectral power distributions. Architectural, horticultural and aquacultural lighting control systems use the calculated results to control both the intensity and spectral power distribution of the electric light sources. Energy consumption may be minimized while maintaining optimal occupant visual comfort and plant health.
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公开(公告)号：US11606914B2
公开(公告)日：2023-03-21
申请号：US17824810
申请日：2022-05-25
Applicant: Suntracker Technologies Ltd.
Inventor： Ian Edward Ashdown , Wallace Jay Scott
Abstract: Laser light is coupled to optical fibers arranged in a sheet, which may be in the form of netting, mesh or fabric. Scattering centers or bends in the optical fibers allow the coupled light to escape from the sides of the fibers. Depending on the selection of wavelengths for the lasers, the resulting luminous sheet may be used for illumination of crops grown in vertical farms. The laser wavelengths excite plant photopigments for predetermined physiological responses, and the light source intensities may be temporally modulated to maximize photosynthesis and control photomorphogenesis responses. Each laser may be independently controlled, and at least one laser may emit ultraviolet-C radiation. The luminous sheet may be used for purification of air flowing through an air duct.
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公开(公告)号：US11470703B2
公开(公告)日：2022-10-11
申请号：US17687378
申请日：2022-03-04
Applicant: SUNTRACKER TECHNOLOGIES LTD.
Inventor： Ian Edward Ashdown , Wallace Jay Scott
Abstract: A biological lighting system to provide temporally- and spatially-modulated photon flux output and spectral power distributions to plants on a circadian and circannual basis, or circadian and life cycle basis, to maximize effective and efficient growth in a horticultural setting. The photon flux or irradiance output and the spectral power distribution are modulated to match circadian and circannual rhythms, with individual or multiple luminaires controlled through one or more controllers. Different lighting spectra can be employed depending on the direction of illumination. The photon flux or irradiance output and the spectral power distribution may be set as best suited for any particular plant species, and the system is also useful for raising animals.
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公开(公告)号：US11382280B1
公开(公告)日：2022-07-12
申请号：US17690683
申请日：2022-03-09
Applicant: Suntracker Technologies Ltd.
Inventor： Ian Edward Ashdown , Wallace Jay Scott
Abstract: Laser light emanates from optical components that are mounted on a substrate, each optical component being coupled to an optical fiber that delivers laser radiation combined from multiple lasers. A linear or elliptical holographic diffuser is located to diffuse the light emanating from the optical components. The laser wavelengths excite plant photopigments for predetermined physiological responses, and the light source intensities may be temporally modulated to maximize photosynthesis and control photomorphogenesis responses. Each laser is independently controlled. At least one laser emits ultraviolet-C radiation.
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