Patent classifications
F21Y2107/50
Flexible LED lighting strip with slanted LEDs
The invention describes a flexible lighting strip for use in a vehicle signaling light. The flexible lighting strip comprises a multitude of light-emitting diodes. The flexible lighting strip is arranged to be bended around at least two, more preferably three linear independent axes. Light-emitting diodes of at least a first group of the light-emitting diodes are inclined with respect to a longitudinal extension of the flexible lighting strip such that surface normals of light exit surfaces of the first group of the light-emitting diodes enclose a first angle of more than 0° with corresponding surface normals of a light emission surface of the flexible lighting strip. The invention further relates to a light assembly comprising such a flexible lighting strip. The invention finally relates to a vehicle signaling light comprising such a vehicle light assembly.
Direct backlight for a display, with light bars in different planes
A backlight includes a first casing having an opening; a second casing connected to the first casing; an optical member disposed between the first casing and the second casing, and exposed via the opening; a supporting back plate disposed between the optical member and the second casing; at least one circuit board disposed between the supporting back plate and the second casing; and a plurality of light bars disposed on the supporting back plate. The supporting back plate is disposed between the second casing and optical member. The supporting back plate includes a first area and a second area, configured such that a distance from the first area to the second casing is greater than a distance from the second area to the second casing.
Lighting unit and luminaire with skewed LED optics pairs
A lighting unit (100) for a medical luminaire (150) has a number of groups of LEDs (110, 110′, 110″) that are connected to a common planar printed circuit board (115). Each LED (112, 112′) of at least one of the groups (110, 110′) is associated with a respective optic (122, 122′) by which a respective LED-optic pair (120, 120′) is formed. The respective optics, based on the structure (328), specify a tilt angle (125) of a central light beam axis (124, 124′) of an emitted light beam of the LED optics pair in a tilt direction (627) of the respective LED optics pair. The tilt direction is defined such that the respective light beam axes of the emitted light beams of the LED optics pairs from the at least one group of LEDs are at least partially skewed in pairs with respect to one another.
DUO LED LIGHT FIXTURE WITH A DOWNLIGHT SOURCE AND AN OPTIONALLY OPERABLE UPPER LIGHT SOURCE
A dual LED light fixture is comprised by a lower LED light source housing and an upper LED light source housing. A lower LED light source is mounted in the lower light source housing to generate downlight. An upper LED light source is mounted in the upper LED light source housing and remote from an outer circumferential light transmitting outer side area of the upper light source housing and from which is emitted side light illumination. An LED power supply and light control circuit mounted in the LED light fixture and adapted for connection to a power source. The LED light power supply and control circuit has a dimming circuit and a lower and upper driver current supply circuit. A switch is operative to connect driver current to the upper LED light source when actuated to an “on” position and to disconnect driver current to the upper LED light source when in a normal “off” position. The switch is operative for engagement to its “on” position when desirable to provide drive current to the upper light source and illumination from both the lower and upper LED light sources of the LED light fixture. Various embodiments of the LED light fixture is described.
Light Engine and Method of Simulating a Flame
A lighting device has a power interface and a control circuit in communication with a program and the LEDs to simulate a flame. The program determines a first group of LED control integers to simulate a perpetual middle with a perpetual middle center and a perpetual middle range within which one or more of the LEDs are to be at least partially actuated. At least one LED is actuated based on the first group of LED control integers. A first target for simulating movement of the perpetual middle center toward the first target and a first acceleration value is defined. The program determines a second group of LED control integers based on the first target and the first acceleration value such that the perpetual middle center becomes closer to the first target. One or more of the LEDs is actuated based on the second group of LED control integers.
LIGHTING SYSTEM FOR VERTICAL GARDEN
A lighting system for a vertical garden includes at least one light ring including a central hub member configured to be removably mounted to the vertical garden, an outer ring member, and a plurality of spoke members extending radially between the central hub member and the outer ring member, a plurality of light sources supported in the outer ring member, and a drive circuit for the plurality of light sources, a power supply, and at least one power connector connected between the drive circuit and the power supply.
Lamp base with integrated light source driver and corresponding lamp
A lamp base includes a housing for at least partial accommodation of a carrier for a light source. Two mutually-opposing guide rails are provided in the housing for the form-fitted insertion of the carrier. The technology is particularly applicable to carriers with LEDs as light sources and addresses problems with adhesive or soldered attachment of the light source carrier.
DUO LED LIGHT FIXTURE WITH A DOWNLIGHT SOURCE AND AN OPTIONALLY OPERABLE UPPER LIGHT SOURCE
A dual LED light fixture is comprised by a lower LED light source housing and an upper LED light source housing. A lower LED light source is mounted in the lower light source housing to generate downlight. An upper LED light source is mounted in the upper LED light source housing and remote from an outer circumferential light transmitting outer side area of the upper light source housing and from which is emitted side light illumination. An LED power supply and light control circuit mounted in the LED light fixture and adapted for connection to a power source. The LED light power supply and control circuit has a dimming circuit and a lower and upper driver current supply circuit. A switch is operative to connect driver current to the upper LED light source when actuated to an “on” position and to disconnect driver current to the upper LED light source when in a normal “off” position. The switch is operative for engagement to its “on” position when desirable to provide drive current to the upper light source and illumination from both the lower and upper LED light sources of the LED light fixture. Various embodiments of the LED light fixture is described.
Tunable LED-Filaments and Tunable LED-Filament Lamps
A color temperature tunable LED-filament includes an elongated light-transmissive substrate; a first array of LED chips on a front face of the substrate; a second array of LED chips on the front face of the substrate; a first photoluminescence layer covering the first array of LED chips; a second photoluminescence layer covering the second array of LED chips; and a circuit arrangement enabling independent power control to the first and second LED arrays or relative power control to the first and second array of LED chips to control the color temperature of light generated by the LED-filament.
Omnidirectional LED light wire and packaging method thereof, light source and lamp
An omnidirectional LED light wire and a packaging method thereof, a light source and a lamp, and in particular, to the technical field of LED lighting. The omnidirectional LED light wire includes one or more than one flip chip and two or more than two conductive components. The one or more than one flip chip is connected through the conductive components to realize an electrical connection relationship, in single, in series, parallel or a combination of series and parallel, of the one or more than one flip chip. In view of technical problems of low efficacy, low temperature resistance and poor heat dissipation of the existing FPC substrate, the disclosure breaks bottlenecks of temperature resistance and dissipation of the FPC substrate.