Other

General Luminaire Co., Ltd.

Yung-Hong Wang

Qin Zhou

Chien Pang Lee

Chuan-Zhu Pan

Yun Zhang

Zhi-Jian Fan

Li-Li Cao

Brian A Cook

Huai-Ling Liu

Shuai Li

Huan-Huan Wei

David Fitzgerald

Marcel Nierhoff

A human-factor lamp and system capable of intelligently adjusting ambient light includes light emitting devices, each having a detection unit. When the detection unit detects a human within the lamps sensor field of view one of the light emitting device, such light emitting device is defined as a primary lamp and all others are defined as secondary lamps. The primary lamp is adjusted to a maximum luminous intensity and the secondary lamps are adjusted outwardly from the primary lamp and decremented to a minimum luminous intensity. When any secondary lamp is near more primary lamps away from different distances, the one with a larger luminous intensity is used as a basis for adjusting the brightness after the luminous intensity of the secondary lamp is decremented. In the environment having the human-factor lighting system, the overall ambient luminous performance can be changed according to the moving position of people.

Human-factor lamp capable of intelligently adjusting ambient light and system thereof

An LED lighting device capable of adjusting color temperature by software and hardware cooperative control to achieve high-performance output includes at least one light source and a drive circuit. The light source includes first-wavelength LED, second-wavelength LED, third-wavelength LED and fourth-wavelength LED. When a modulator is operated to select only one of the first-wavelength LED, the second-wavelength LED, the third-wavelength LED and the fourth-wavelength LED to receive a maximum rated current, the drive circuit outputs four times of the maximum drive power to the corresponding LEDs; or when the first-wavelength LED, the second-wavelength LED, the third-wavelength LED and the fourth-wavelength LED receive a quarter of the maximum rated current separately, the drive circuit outputs a quarter of the maximum drive power to the LEDs separately, and the output pulse width of the drive power will be modulated to maintain the light source to carry a constant rated power.

LED lighting device capable of adjusting color temperature by hardware and software cooperative control to achieve high-performance light output

Disclosed are a method and system for controlling a display condition which is pre-written into a passive light board by a mobile device. A display status is pre-written into a passive light board which is not powered by electricity before, and a control application program loaded into the mobile device is provided for a user to input a brightness parameter and a color temperature parameter. The light board which is not powered by electricity before can carry out the presetting of the display condition, and related manufacturers can set the light boards quickly and easily after the light boards exit the factory, and the light boards can display according to the conditions in compliance with the brightness parameter and the color temperature parameter after the light boards are powered on.

Method and system for controlling display condition which is pre-written into passive light board by mobile device

A lighting device using multiple scattered light sources to change illumination angle and color temperature by adjusting light intensity includes a central light source portion, a peripheral light source portion and an optical lens on a lamp board. The optical lens covers the central and peripheral light source portions. The central light source portion has first cold LEDs and first warm LEDs equidistantly installed near a setting area of the lamp board. The peripheral light source portion has second cold LEDs and second warm LEDs installed within an area range that takes the setting center as center of circle and has a diameter of 6-8 mm. A controller is used to adjust a driving current intensity of the central and peripheral light source portion to adjust the illumination angle and color temperature of the lighting device, and the intensity performance or On/Off state of each LED can be controlled independently.

Lighting device using multiple scattered light sources to change illumination angle and color

An LED lamp panel capable of adjusting color temperature includes a first LED lighting circuit, a second LED lighting circuit and a conduction control circuit. The first LED lighting circuit has first color temperature information, the second LED lighting circuit has second color temperature information, and both first and second LED lighting circuits are electrically connected to conduction a control circuit. The LED lamp panel is capable of adjusting the color temperature of the LED lamp panel according to the color temperature information of the manufactured LED light panel, so as to adjust the color temperature of a lamp product. This invention is applicable for changes of market requirements flexibly to reduce the lighting manufacturers' pressure and risk of inventory. Consumers can adjust the color temperature of the lamp by themselves to fit different living or working environments.

LED light panel capable of adjusting color temperature

LED light panel

Lamp panel

Disclosed are a power factor correction circuit and a power adapter, and the power factor correction circuit includes a sampler, a controller and a current limiter, and the controller includes an error amplification unit, a peak value adjusting unit, an ON/OFF computing unit and a phase lock unit. The sampler is coupled to the phase lock unit, and the current limiter is coupled to the error amplification unit and the ON/OFF computing unit, so as to achieve the effects of enhancing the power factor property of the power factor correction circuit, lowering the manufacturing cost, and improving the electric power utilization.

Power factor correction control circuit and power adapter thereof

Disclosed are a pulse frequency modulation circuit and a power adapter. The pulse frequency modulation circuit includes a first multiplier, a second multiplier, a third multiplier, a divider and an adder sequentially and electrically connected to one another. The second multiplier includes an output terminal connected to an input terminal of the divider, a first input terminal, and a second input terminal connected to an input terminal circuit of the adder. To prevent the uncertain timing of the critical operating status of the time control circuit detected by the conventional zero-crossing detection method, the pulse frequency modulation circuit and power adapter adopt the pulse frequency modulation circuit for computation and output a control signal to control the OFF/ON time of a transistor in the power adapter, so as to control the timing of the operating status of the power adapter precisely.

Pulse frequency modulation circuit and power adapter

An outdoor device management system, in installations of at least one outdoor device such as a road lamp, a street trash can, an electrical box, a monitor, an electric meter or a sprinkler, uses a wireless sensor with a global positioning system (GPS) chip to sense an identification element of the outdoor device, capture a unique identifier address (UID) and generate sensed data containing coordinate data and then transmits the sensed data to a terminal device, labeling the outdoor device on a corresponding position in a map, and transmitting an operation instruction to trigger and control operations of the corresponding outdoor device. The outdoor device includes a detection element for detecting and reporting current operating status for the terminal device, using the map to plan an optimal path to expedite going to maintain the outdoor device when abnormality occurs so as to improve the convenience and accuracy of management.

Growing community of inventors

Taipei, Taiwan

Yung-Hong Wang