LED Output Consistency in Multi-Device Systems

Uniformly controlling the illuminance of LED lighting systems with multiple LED arrays containing LEDs with different forward voltages. The method involves individually controlling the current applied to each LED in an array based on its illuminance, then balancing the total array illuminance by adjusting the current limits. An illuminance detection unit finds the lowest illuminance LED in each array. It then sets the array current limits to make all LEDs have the same illuminance as the lowest one. This compensates for variations in forward voltage. By independently controlling the current for each LED and array, it balances illuminance across arrays with mixed LED types.

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LED lighting system that allows dimming while maintaining consistent color temperature. The system uses multiple LED channels with different color temperatures. During dimming, it selectively combines adjacent channels to generate mixed light. This allows following the blackbody locus and expressing a wide range of color temperatures while dimming. The channel brightness decreases together with color temperature. The ratio of max brightness for each channel versus the highest channel decreases.

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LED filament bulb with omnidirectional light emission and high efficiency. The bulb uses a flexible LED filament shaped to emit uniform light in all directions. The filament has multiple flat segments connected by bendable sections. This allows the filament to be shaped in a non-linear configuration compared to traditional straight filaments. The shaped filament emits light uniformly in 360 degrees. The bendable segments prevent disconnection when the filament is flexed.

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LED package with adjustable color appearance and electronic device using it, where the LED package matches the device color when not emitting light. The package has an electrochromic film that changes from a colored opaque state to a transparent when voltage is applied. A reflective layer and color layer also give the LED chip a different color when off. In an electronic device, the LED package color can be matched to the device's appearance when not emitting light to have a coordinated look.

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Light emitting diode (LED) array with a window that shapes and focuses the light in a way that minimizes variations in intensity across the beam angle. The LED array has a matrix of closely spaced LED chips on a substrate. A dome-shaped window covers the LEDs and controls their emitted light paths. The window has a convex lens shape with a height of 70% or less than its lower diameter. This concentrates the light within a 90-degree beam angle while reducing peaks and valleys in the light profile.

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Simplifying lighting control of multiple LED strips with different dimming modes using a single controller. The method involves storing multiple LED strip dimming modes in the controller. When the controller receives the dimming data from a mobile device, it matches the dimming mode to the target LED strip based on its lighting type. This allows controlling multiple strips with mixed modes using a single controller instead of separate controllers for each strip.

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White LED lighting that closely mimics natural sunlight and has improved color rendering compared to traditional LEDs. The device uses broad-spectrum blue LEDs as the excitation source along with optimized green-yellow and red phosphors. The broad blue excitation fills in the cyan trough between blue and green phosphors, boosting color rendering. The result is full-spectrum white light that appears more natural, has higher CRI, and reduces eye damage from excessive blue light exposure.

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LED lighting device design that improves light output and color consistency over different angles. The design uses a lens assembly mounted over the LED, with a gap between the lens and elastomer encapsulant. This allows light to reflect off the lens surfaces instead of being absorbed by the elastomer. A reflector in the gap can further control light direction. The lens can also have features like a recess or scattering element to mix light. This reduces color variations and improves uniformity compared to traditional LED encapsulation.

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Independently controlling the dimming of multiple channels of LED lights using a single controller. The method involves dividing the controller's output voltage into separate dimming values for each channel based on the gear position of a PWM signal. This allows independent control of each channel's brightness. The division is achieved by sampling the PWM signal and output voltage in each gear to find the unique dimming values.

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Merging control of multiple lighting systems with separate controllers and devices into a single cohesive system. It achieves this by grouping lights from different systems together into common control groups. A central remote device sends light settings for these groups to both controllers. They then broadcast commands to control the corresponding lights synchronously. This allows coordinated lighting across multiple systems without needing to add more controllers or devices.

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Synchronizing photon emission from multiple LED lights to improve efficiency and reduce power stress. The LED lights receive timing signals from a master controller, compare it to their own internal clock, and adjust accordingly to synchronize. This allows commands to be transferred between lights through the master. The lights also pulse at reduced rates to maximize response without full power. By coordinating emissions, it avoids unnecessary simultaneous illumination. The lights also use unique IDs and channels to ignore errant signals.

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Controlling multiple LED lights using a central controller that provides precise and versatile control over the lights. The controller connects to multiple LED lights and allows two modes of operation: preset mode and real-time mode. In preset mode, the controller sends predetermined signals to the lights. In real-time mode, the controller receives signals from an external source like a computer and passes them on to the lights. This allows different control methods for different applications, such as synchronized flashing of all lights or independent control of individual lights.

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Lighting device and two-way communication lighting control system that synchronizes and controls color temperature and brightness of auxiliary lighting parts of separate lighting devices connected through a network when the primary lighting device adjusts its color temperature and brightness based on user behavior and atmosphere. The secondary lighting devices receive the color temperature information from the primary device and adjust their lights accordingly. It allows remote synchronization of lighting color and brightness across devices based on the primary device's settings.

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Synchronous lighting control for large-scale lighting systems using a master-slave configuration with grouping. The lighting control method involves dividing a large number of candidate LEDs into groups, with one LED from each group as the master. The masters are connected directly to the control device, while the slaves connect to their masters using a secondary protocol. This allows synchronized lighting control by sending commands to the masters, which propagate to the slaves. Grouping optimizes efficiency by avoiding individual control of each LED.

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Efficient and precise control of multiple LED lights using a simple hardware setup and algorithms to reduce cost and improve user experience. The control method involves a light source controller, input module, driving module, feedback unit, and multiple LED lights. The controller parses user input to extract brightness and color parameters, gets ambient light, generates driving instructions for each LED based on the parameters and ambient light, and sends them to the driving module. This allows accurate control of multiple LED lights using a basic setup compared to complex hardware and algorithms.

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Smart lighting system using a cloud platform for centralized control and configuration of LED lamps. The system allows remote adjustment of brightness and color of the LED lamps via the cloud. It uses pulse width modulation (PWM) to dim the lamps and a color mixing function to generate desired hues. The cloud platform provides a management portal and developer tools for configuring and connecting devices. It enables features like scheduling, alerts, and analytics.

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LED dimming and color adjustment system that allows precise and independent control of individual LED lights for creating customized lighting environments. The system has an external controller like a phone, remote, or computer that connects wirelessly to a wall-mounted control panel. This panel communicates with a processor module containing multiple LED light controllers. Each group of LED lights is connected to a separate controller to enable independent dimming and color adjustment. This allows accurate and tailored lighting effects compared to overall dimming buttons.

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Controlling multiple LED groups in a single lighting fixture to produce different color temperatures and intensities using a single driver. The controller receives color temperature and intensity settings. It generates control signals to turn the LED groups on/off in a cycle based on the color temp setting. The LED groups are dimmed based on the intensity setting. By controlling the duty cycle of each LED group, the overall color temperature is adjusted. This allows a single driver to power multiple LED groups for variable color temps and intensities.

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A lamp cluster control system that allows synchronized dimming and color adjustment of multiple lamps using wireless and power line communication. The system has a central wireless MCU that powers and connects to the wireless transceiver. It also has a wired data transmission circuit to send smart coded data over the power line. Each lamp has a wired data receiving circuit to decode the power line data and a dimming/color circuit. This allows the central MCU to wirelessly send dimming/color commands that are synchronized across all lamps via the power line.

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A smart lighting system using 5G communication for efficient and flexible control of LED lights. The system has LED lamps with controllers that communicate over 5G. It allows intelligent dimming of individual lamps or groups based on unique identifiers. The system also has features like loop dimming, remote dimming from servers, and local dimming based on environmental parameters. The controllers can also monitor lamp health and faults. The 5G connectivity enables scalable, flexible, and reliable lighting control without needing dedicated power lines or mesh networks.

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