5 results about "Diode matrix" patented technology

The invention relates to an optoelectronic component (1), comprising a substrate (10) extending predominantly along a longitudinal plane (XY), a matrix of diodes (100a, 100b, 100c, 100d) arranged on the substrate (10), at least one first diode (100a) adjoining a trench (1000). The trench is defined by a side face (150a) of the first diode and separates the first diode from the second diode (100b). The first diode is configured to emit or receive light within a wavelength range of interest. The trench comprises: a dielectric layer (200) transparent over the wavelength range of interest, the dielectric layer having a side portion (200a) covering a side of the first diode; and a space (1500) in contact with the side portion to define an interface together with the side portion. The interface forms a reflective interface (250a) and forms a reflection angle of less than 89 DEG with the longitudinal plane.

An X-ray imaging detection module and a mounting fixture therefor and a mounting method therefor. The detection module comprises a circuit substrate (1), photodiodes (2), a scintillator (3) and metal wires (4) which are stacked sequentially. An X-ray is perpendicular to the detection module and is irradiated from one side of the metal wires (4). A plurality of photodiodes (2) are arranged in an array on the circuit substrate (1) to form a photodiode (2) matrix. The scintillator (3) completely covers all the photodiodes (2). A plurality of metal wires (4) are arranged in an array on the scintillator (3) to cover odd-numbered columns or even-numbered columns or odd-numbered rows or even-numbered rows of the photodiode (2) matrix. The photodiodes (2) form the photodiode (2) matrix on the circuit substrate (1), the scintillator (3) covers the photodiodes (2), and the metal wires (4) are arranged in the array on the scintillator (3) and filter out low-energy ray signals at positions covered by the metal wires (4), so that a high-and-low energy interleaved X-ray imaging detection module is formed, and a dual-energy image can be obtained, thereby improving the material discrimination capability of the image, and providing the advantages such as facilitating processing and manufacturing.

A write-once, read-many times (WORM) memory medium fabricated using 3D printing, additive manufacturing, or similar automated techniques is disclosed. The memory is structured as a diode matrix in which memory states are stored physically at intersections of address and data lines. These intersections are created using materials with differing electrical properties to produce fixed high or low states. The fabrication system may use arrays of ejection nozzles or other deposition mechanisms to enable practical write speeds. Applications include secure storage of cryptographic keys, hash values, and identity credentials. Additional embodiments include secure computing systems, secure communication devices, and hardware-based authentication mechanisms using the fabricated WORM memory as a tamper-resistant medium.

The invention discloses a light emitting diode (LED) matrix and a control method thereof. The matrix includes an LED array and an LED matrix control circuit. The control circuit includes: a driver corresponding to each LED; a voltage controller; a digital-to-analog converter (DAC); a microcontroller unit (MCU); and a current-to-voltage converter. The method is executed by the control circuit. The method includes: generating, by the MCU, a digital control signal indicative of a brightness level to be set in a given LED; generating, by the DAC, an analog control signal for the given LED based on the digital control signal; the voltage controller obtains the analog control signal and the feedback signal; generating, by the voltage controller, a composite control signal based on the analog control signal and the feedback signal; and adjusting, by the corresponding driver, a luminance level of the given LED.

A light emitting diode (LED) matrix and a method for controlling same. The matrix an array of LEDs and an LED matrix control circuit. The control circuit includes a driver corresponding to each LED; a voltage controller; a digital-to-analog converter (DAC); a microcontroller unit (MCU); and a current-to-voltage converter. The method is executed by the control circuit. The method includes generating, by the MCU, a digital control signal indicative of a brightness level to be set in a given LED; generating, by the DAC, an analogue control signal for the given LED based on the digital control signal; acquiring, by the voltage controller, the analogue control signal and a feedback signal; generating, by the voltage controller, a synthesized control signal based on the analogue control signal and the feedback signal; and adjusting, by the corresponding driver, a brightness level of the given LED.