At least one of a selected animation an image and a character are displayed by vertical oscillation of a hand at a horizontal position of a light display device. In the horizontal position of the hand and also in the horizontal position of the light display device, a slider animation (directional arrow) is displayed without oscillation. When the light display device is upright, the device illuminates a red warning light on both sides. An illuminating device is switched on to display at least one of text, animation and a character by means of horizontal oscillation. When the light display device is caught from the right hand to the left, the displayed text, animation or character is automatically rotated to a readable position. When the device is lowered to the vertical position, the display is automatically interrupted.

An LED light bulb includes a bulb shell, a bulb base, two conductive supports, a stem, and an LED filament. The bulb base is connected with the bulb shell. The two conductive supports are disposed in the bulb shell. The stem extends from the bulb base to inside of the bulb shell. The LED filament includes a plurality of LED chips and two conductive electrodes. The LED chips are arranged in an array along an elongated direction of the LED filament. The two conductive electrodes are respectively disposed at two ends of the LED filament and connected to the LED chips. The two conductive electrodes are respectively connected to the two conductive supports. The LED filament is curled to satisfy symmetry characteristics.

An LED light bulb includes a bulb shell, a bulb base, two conductive supports, a stem, and an LED filament. The bulb base is connected with the bulb shell. The two conductive supports are disposed in the bulb shell. The stem extends from the bulb base to inside of the bulb shell. The LED filament includes a plurality of LED chips and two conductive electrodes. The LED chips are arranged in an array along an elongated direction of the LED filament. The two conductive electrodes are respectively disposed at two ends of the LED filament and connected to the LED chips. The two conductive electrodes are respectively connected to the two conductive supports. The LED filament is curled to satisfy symmetry characteristics.

The present disclosure provides a combinational circuit and a control circuit. The combinational circuit is applied to an LED drive circuit and includes a detection module and a drive and logic conversion module connected with the detection module. The detection module is configured to detect a state of an external switch, generate a detection signal according to the state of the external switch as detected, and send the detection signal to the drive and logic conversion module; and the drive and logic conversion module is configured to receive the detection signal from the detection module, generate a driving signal according to the detection signal, and drive an operation state of a discharge module for discharging an output electrolytic capacitor of the LED drive circuit by using a state of the driving signal.

The present disclosure provides a combinational circuit and a control circuit. The combinational circuit is applied to an LED drive circuit and includes a detection module and a drive and logic conversion module connected with the detection module. The detection module is configured to detect a state of an external switch, generate a detection signal according to the state of the external switch as detected, and send the detection signal to the drive and logic conversion module; and the drive and logic conversion module is configured to receive the detection signal from the detection module, generate a driving signal according to the detection signal, and drive an operation state of a discharge module for discharging an output electrolytic capacitor of the LED drive circuit by using a state of the driving signal.

An LED controller system includes an LED controller including an image frame buffer able to receive image data. A sensor processing module is used to receive and process sensor data and a decision module is used to determine actions taken in response to processed sensor data. An image creation module is used to create images to be sent to the image frame buffer of the LED controller.

An LED controller system includes an LED controller including an image frame buffer able to receive image data. A sensor processing module is used to receive and process sensor data and a decision module is used to determine actions taken in response to processed sensor data. An image creation module is used to create images to be sent to the image frame buffer of the LED controller.

A power management system for a lighting circuit may include a grid shifting controller that includes a processor and a connection to an external power source. The power management system may also include a communication interface associated with the grid shifting controller. The grid shifting controller may be configured to provide control information to a processor of at least one grid shifting electrical fixture over the communication interface, the control information being configured to direct the at least one grid shifting electrical fixture on the use of power from the external power source and an energy storage device associated with the at least one grid shifting electrical fixture.

A power management system for a lighting circuit may include a grid shifting controller that includes a processor and a connection to an external power source. The power management system may also include a communication interface associated with the grid shifting controller. The grid shifting controller may be configured to provide control information to a processor of at least one grid shifting electrical fixture over the communication interface, the control information being configured to direct the at least one grid shifting electrical fixture on the use of power from the external power source and an energy storage device associated with the at least one grid shifting electrical fixture.

A lighting device, such as a replacement lighting device, comprising a light source (LS), e.g. LEDs, for producing light along an optical axis (OA). A heat sink (HS) made of a material with an electrical resistivity being less than 0.01 Ωm, e.g. a metallic heat sink being a part of the housing, transports heat away from the light source (LS). A Radio Frequency (RF) communication circuit (CC) connected to an antenna (A) serves to enable RF signal communication, e.g. to control the device via a remote control. Metallic components, including the heat sink (HS), having an extension larger than 1/10 of a wavelength of the RF signal are arranged below a virtual plane (VP) drawn orthogonal to the optical axis (OA) and going through the antenna (A). Hereby a compact device can be obtained, and still a satisfying RF radiation pattern can be obtained. The antenna can be a wire antenna or a PCB antenna, e.g. a PIFA or a IFA type antenna. In a special embodiment the antenna is formed on a ring-shaped PCB with a central hole allowing passage of light from the light source. Preferably, the antenna is positioned at least 2 mm in front of the heat sink (HS).