System and method for real-time light mapping

    公开(公告)号:US12228449B2

    公开(公告)日:2025-02-18

    申请号:US17707742

    申请日:2022-03-29

    Abstract: Light mapping devices and systems for use in indoor or vertical farming are disclosed herein. In particular, a light detection device is provided that includes a plurality of light sensors configured for detecting light emitted from one or more light sources at distinct positions across a grow plane. The light detection device will also include a microcontroller and one or more signal routing circuit boards, or junctions, for making electrical connections between the light sensors and the microcontroller in a multiplex architecture to enable the microcontroller to cycle through and read the Lux values from each of the light sensors with sub-second frequency and in real-time. The light detection device may also be part of a light mapping system that converts the Lux values to PPFD and generates a heatmap of PPFD intensity at distinct locations across the grow plane. Also provided herein are methods of using the light detector device and/or the light mapping system to determine the PPFD distribution across a grow plane in 2-dimensions or 3-dimensions in order to adjust the lights and/or position of growing plants, if necessary, to ensure that each plant in the grow bed receives sufficient light for optimal growth.

    SENSOR DEVICE
    23.
    发明申请

    公开(公告)号:US20250056913A1

    公开(公告)日:2025-02-13

    申请号:US18718096

    申请日:2021-12-17

    Inventor: SAYAKA TAKAI

    Abstract: A sensor device according to the present technology includes a plurality of pixel units arranged in a row direction and a column direction, in which each of the plurality of pixel units includes a plurality of unit pixels arranged in a row direction and a column direction, each of the plurality of unit pixels includes at least one pixel having a photoelectric conversion element and a scattering structure that scatters light incident on the photoelectric conversion element, and at least one of the unit pixels has a different formation pattern of the scattering structure from that of the other unit pixels.

    PHOTOELECTRIC CONVERSION DEVICE
    24.
    发明申请

    公开(公告)号:US20250056138A1

    公开(公告)日:2025-02-13

    申请号:US18932209

    申请日:2024-10-30

    Abstract: A photoelectric conversion device includes a photodiode configured to perform avalanche multiplication, a recharging circuit configured to perform a recharging operation to bring the photodiode after the avalanche multiplication into a state in which the avalanche multiplication can be performed again based on a first control signal including pulses that periodically repeat transitions from a first level to a second level, and a counter configured to count the number of occurrences of the avalanche multiplication by being enabled based on a second control signal. Before the counter is enabled based on the second control signal, the first control signal transitions from the first level to the second level and transitions from the second level to the first level.

    ADJUSTABLE SIGNAL SOURCE WITH LOW PHASE NOISE

    公开(公告)号:US20250044151A1

    公开(公告)日:2025-02-06

    申请号:US18717518

    申请日:2022-12-09

    Abstract: The invention relates to an adjustable signal source with low phase noise, comprising: an optical-microwave phase detector (BOMPD) which comprises: an intensity modulator (BIM) having an optical signal input, a modulation input (1), a first output (O1), and a second output (O2), a first photodiode (PD1) which can be irradiated by light from the first output (O1) during operation, a second photodiode (PD2) which can be irradiated by light from the second output (O2) during operation, wherein the first photodiode (PD1) and the second photodiode (PD2) are connected in series in a biased manner during operation, wherein a tap for a tap signal is arranged between the first photodiode (PD1) and the second photodiode (PD2), further comprising a controllable DC power source (N4), wherein an offset current is can be set at the tap during operation by means of the first DC power source (N4), whereby the symmetry of the optical-microwave phase detector is canceled by an offset current during operation, wherein the tap is routed to a low-pass filter with any potential offset current, wherein the low-pass filtered tap signal is provided to an adjustable oscillator (OSZ).

    Anti-blooming buffered direct injection pixels

    公开(公告)号:US12203808B1

    公开(公告)日:2025-01-21

    申请号:US18476769

    申请日:2023-09-28

    Abstract: A pixel disclosed includes an anti-blooming injection transistor (DI) transistor under the control of a BDI amplifier/transistor combination. The “turn on” of the anti-blooming injection transistor is offset from the turn on of the BDI transistor by an offset. When the offset is overcome, excess charge can be diverted (iDiverted) away from an integration capacitor. This can allow the BDI transistor/amplifier combination to hold the detector at nominal bias over an extended range and may reduce blooming. The pixel can be implemented in manner that adds a second transistor and a capacitor to prior BDI designs.

    Circuit for high-sensitivity radiation sensing

    公开(公告)号:US12174064B2

    公开(公告)日:2024-12-24

    申请号:US18267725

    申请日:2021-12-08

    Applicant: ams-OSRAM AG

    Abstract: A circuit for sensing radiation with high sensitivity is disclosed. The circuit comprises a first transistor configurable to reset a voltage-level at a circuit node to a voltage reference. The circuit also comprises measurement circuitry configured to measure the voltage-level at the circuit node, and at least one photodiode configured to vary the voltage-level at the circuit node in response to radiation incident upon the photodiode during an integration period. The circuit also comprises processing circuitry configured to control the first transistor to reset the voltage-level at the circuit node and to subsequently configure the measurement circuitry to measure the voltage-level at a start and at an end of the integration period.

    Sensor element suspension
    30.
    发明授权

    公开(公告)号:US12174062B2

    公开(公告)日:2024-12-24

    申请号:US17472801

    申请日:2021-09-13

    Abstract: An apparatus for suspending a sensor element is provided. The apparatus can include a housing including a cavity, an inner surface, and a first end cap integrally formed within a first end of the housing. The housing can include a sensor element therein. The first end cap can include a first plurality of suspension elements integrally formed within the first end cap and arranged to project from a surface of the first end cap toward the cavity. The inner surface of the housing and/or the first plurality of suspension elements can suspend the sensor element within the cavity as the sensor element translates within the cavity. Related systems and methods of manufacture are also described.

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