LEEDARSON LIGHTING CO., LTD.

A lighting apparatus includes a light source module, a driver and a processor. The light source module includes multiple light zones. Different light zones have different LED module combinations. The driver is coupled to an external power source to generating driving currents to the light source module. The processor receives a control command for adjusting colors of the multiple light zones separately by sending control signals to the driver. The control signals indicate duty ratios of the multiple LED modules of the multiple light zones to adjust the colors of the multiple light zones.

A lighting apparatus includes a light source, a power module, a controller, a data input module and a signal processing unit. The light source includes multiple types of LED modules. The power module converts an AC power to a DC power. The controller generating multiple driving currents supplied to the LED modules. The data input module is coupled to the controller. The data input module receives input data to be transmitted. The signal processing unit is coupled to the data input module to process the input data into multiple data streams corresponding to the plurality of transmit antennas. Each transmit antenna transmits the corresponding data stream independently.

An airflow apparatus includes an air tunnel, a fan motor, a fan blade, a box housing and two expandable side units. The fan blade is driven by the fan motor for moving air moving in the air tunnel. The box housing encloses the fan motor, the fan motor and the fan blade. The box housing has multiple fixing units for fixing to a bracket when the box housing is place upon the bracket for limiting movement of the box housing in a first installation mode. The two expandable side units are attached to a lateral side of the box housing. The expandable side units have extending portions extending respectively from two opposite peripheral edges of the box housing. There is an ear hole for each expandable side unit for inserting a fixing hook placed on an installation wall surface in a second installation mode.

The present application provides a method and an apparatus for calculating a duty cycle of a lighting, a terminal, and a storage medium. The method includes: determining a first expression formula of a chromaticity coordinate, a luminous flux and an input duty cycle of each path of three paths of a RGB color light source; calibrating, based on the first expression formula and tristimulus values of the three paths of the RGB color light source under a full current operation, a nonlinear transformation of the luminous flux, to obtain a first duty cycle value; and calibrating, based on the first duty cycle value and the first expression formula, a nonlinear transformation of the chromaticity coordinate, to obtain a second duty cycle value; and controlling displaying colors of the RGB color light source based on the second duty cycle value.

A lighting apparatus includes a plastic cover, a trumpet housing and a light source plate. The plastic cover has an edge portion, a light passing cover and a connection column. The trumpet housing has a widened section and a neck portion. A top end of the neck portion is coupled to a bottom end of the widened section. A diameter of the widened section increases through a tapered transition from the bottom end of the widened section to a top end of the widened section. A light source plate is mounted with a LED module on a front surface. The light source plate is fixed to an inner structure of trumpet housing. The connection column engages the front surface of the light source plate. The edge portion of the plastic engages the top end of the widen section of the trumpet housing.

A lighting apparatus includes a constant current generator, a voltage converter and a PWM generator. The constant current generator for generating a driving current. The current level is determined according to a dimmer signal received from the dimmer. The voltage converter converts the current level of the driving current to a voltage level. The PWM generator generates multiple PWM signals respectively to multiple LED modules. The multiple LED modules have different optical parameters. The mixed light of the multiple LED modules is determined by the PWM signals and the optical parameters of the multiple LED modules.

A lighting apparatus includes a light source, a power module, a controller, a data input module, a serial-to-parallel converter module, an orthogonal frequency division multiplexing (OFDM) modulation module, a radio frequency (RF) upconversion module and an antenna module. The light source including multiple types of LED modules. The controller generates multiple driving currents supplied to the LED modules. The data input module is coupled to the controller. The data input module receives input data to be transmitted. The serial-to-parallel converter module converts the input data into multiple parallel data streams. The orthogonal frequency division multiplexing (OFDM) modulation module modulates the parallel data streams onto multiple orthogonal subcarriers. The antenna module includes multiple antennas configured to transmit RF signals corresponding to the multiple data streams.

A lighting apparatus includes an isolation transformer, an output rectification and voltage regulation circuit, an output current limiting and filtering circuit, and a signal detection and generation circuit. The homonymous terminal of the primary side opposes the homonymous terminal of the secondary side. The output rectification and voltage regulation circuit is connected to the secondary coil of the isolation transformer. The output rectification and voltage regulation circuit rectifies and stabilizes the voltage signal output by the isolation transformer. The output current limiting and filtering circuit is connected to the dimmer and the output rectification and voltage regulation circuit. The output current limiting and filtering circuit adjusts the output current and output voltage according to the operation of the dimmer, and the output current limiting and filtering circuit limits and filters the signal output by the output rectification and voltage regulation circuit.