7results about How to "Delay light decay" patented technology

This invention relates to the field of lighting control technology, specifically disclosing an environment-adaptive LED constant current energy-saving control method. The method includes: arranging a dielectric-photoelastic sensing array, a magnetostrictive-leakage flux detection coil, and a broadband impedance spectrum detection unit on the phosphor encapsulation layer, the inductor core, and the output bus, respectively; simultaneously acquiring three types of timing signals; extracting dielectric-magnetic-electric coupling degradation feature vectors; inputting the feature vectors into an energy-saving-lifetime co-optimization model; correcting the target luminous flux based on the dielectric relaxation offset; constructing a core loss-efficiency mapping surface to solve for the minimum energy consumption operating point; generating a constant current target value offset sequence and a PWM chopper phase-frequency co-transfer strategy; and simultaneously adjusting the duty cycle, switching frequency, and gate impedance through a feedforward-feedback composite adjustment network, and feeding back the current ripple spectrum and dielectric relaxation offset to update the feature vector weights. This invention achieves multi-physics field co-sensing and energy-saving-lifetime co-optimization.

The utility model discloses an adjustable light-emitting diode (LED) fish gathering lamp with a wide-angle lighting and forced air cooling structure, which comprises a lamp body shell, a lamp arranged in the lamp body shell, a heat dissipation fan, a wide-angle lens arranged at the bottom of the lamp body shell and used for increasing the lighting range, and a light diffusion plate arranged at the bottom of the lamp body shell. A heat dissipation air channel used for enhancing the heat dissipation effect is arranged in the lamp body shell, an adjustable installation part is arranged on one side of the lamp body shell, the illumination intensity and the illumination range are optimized, 165-degree wide-angle illumination is adopted to cover a fishing boat operation area, and the illumination uniformity is greatly improved. And a heat dissipation air channel is optimized, and forced air cooling is adopted, so that the junction temperature of the LED is greatly reduced, and light attenuation is delayed. The fishing boat has the functions of being adjustable in installation and convenient to adjust, adjustment at any time in daily use is facilitated, and various installation modes of the installation part are suitable for various fishing boat scenes.

The utility model discloses a LED ceiling lamp, specifically related to the technical field of lamps and lanterns, including fixed base, the fixed base bottom fixed connection has the connecting ring, the fixed base outside fixed connection has a plurality of connecting pieces, the fixed base outside fixed connection has two limit housings, and the limit housing is distributed symmetrically on the fixed base outside, and the fixed base inside is installed with the dismantling subassembly, and the fixed base below is installed with the lamp shade, and the fixed base below is provided with the heat abstractor, the dismantling subassembly includes the gear, and the gear is rotatably connected with the fixed base inside, and the gear outside has two racks. The utility model discloses through setting up dismantling subassembly and heat abstractor, so that the user can easily clean it, remove accumulated dust and dirt, can more quickly complete the lamp shade and LED lamp clean and maintain, can make the connecting ring and lamp shade inside keep stable temperature simultaneously, reduce the security hidden danger caused by high temperature, improve the security of use.

This invention relates to the field of marine floodlight technology and discloses a marine LED floodlight, including a lamp post, a rotating rod fixed to the top of the lamp post, a connecting rod fixed to the side of the rotating rod, a rack fixed to the end of the connecting rod away from the rotating rod, a limit block fixed to the side of the rotating rod, an illumination assembly including a luminaire on the rotating rod, a protective assembly for protecting the luminaire on the top of the rotating rod, and a pushing assembly on the lamp post for moving the luminaire. The pushing assembly consists of a pushing structure and a connecting structure. This invention significantly delays the light decay of the LED luminaire through protective and sealing structures, enabling it to maintain high light transmittance and low light loss for a long time in the highly corrosive marine environment, thereby reducing the input power required to maintain illuminance and achieving energy-saving operation.

The invention discloses a 2835 support-based flip chip LED packaging structure, which comprises a support body and an LED flip chip, a cavity is arranged in the support body, the bottom of the cavity is connected with a centrally arranged metal electrode, the LED flip chip is arranged in the cavity, the LED flip chip is connected with the metal electrode, a white glue layer is filled between the LED flip chip and the cavity, and the bottom of the cavity is connected with the metal electrode. A packaging layer is arranged above the white glue layer in the cavity; the invention further discloses an implementation method of the flip chip LED packaging structure based on the 2835 support. The LED flip chip is directly connected to the metal electrode through the eutectic bonding or solder paste sintering process, the PN electrode of the LED flip chip makes contact with the positive electrode and the negative electrode of the support body, no gold wire is needed for electrical connection, and therefore shielding and absorption of the gold wire to emergent light are thoroughly eliminated, and the light extraction efficiency is improved.

This invention relates to the field of medical device technology, specifically to a physiotherapy lamp. It includes a support frame, on which an irradiation assembly is mounted. The irradiation assembly includes a fixed frame, within which a housing is slidably disposed. An irradiation unit is fixedly disposed within the lower end of the housing. The housing is fixedly connected to a connecting assembly, which is slidably connected to the fixed frame and to an air pump. Multiple air tubes are disposed below the housing, with multiple nozzles fixedly connected to their lower ends. Sliding rods are slidably disposed at both ends of the fixed frame below the housing. One end of a folding plate is fixedly connected to a sliding rod, and the other end of the folding plate is fixedly connected to the fixed frame. The ends of the sliding rods are connected to the fixed frame via spring bellows, the interior of which is connected to one end of a second channel opened within the fixed frame. This invention allows the housing to move upwards and cut off the light source when the patient accidentally gets up, preventing high-temperature radiation from directly hitting the skin. The folding plate then unfolds, blocking residual heat conduction paths.

The application relates to the technical field of semiconductor lighting, in particular to a full-spectrum high-color-rendering LED lamp bead. The lamp bead comprises an LED support, a blue light excitation chip, a red light enhancement chip, a multi-component fluorescent material system, a silicone encapsulation lens and a heat management structure. The blue light excitation chip and the red light enhancement chip are die-bonded on the LED support and form electrical connections with the positive and negative electrode pads respectively; the multi-component fluorescent material system is formed on the chip surface by adopting a partition coating process; the heat management structure comprises a high-thermal-conductivity ceramic substrate and a silver-plated copper alloy support frame. The application realizes full-spectrum coverage through the blue light excitation chip combined with the multi-component fluorescent material system, and simultaneously configures the red light enhancement chip to supplement the red light band energy, adopts an optimized partition coating process and a multi-layer fluorescent structure design, effectively controls the proportion of blue light overflow, and improves the light conversion efficiency. The lamp bead can significantly improve the general color rendering index Ra and the special color rendering index R9, realizes low blue light hazard, high luminous efficiency and good thermal stability.