A luminaire comprises a light guide having light outcoupling elements at one side and a flat light output surface at the other side, which is visible in use of the luminaire. An array of solid state lighting elements is arranged around the edge of the light guide facing the general light output direction. A respective reflector is associated with each solid state lighting element for reflecting light into the light guide. By providing the lighting elements all facing the general light output direction, they can be formed as a single unit, or as a small number of sub-units, thereby simplifying the manufacture. The design of the reflectors, the positioning of the lighting elements, and the design of the light outcoupling elements together may be used to create an asymmetrical light output beam shape. Actuation of different lighting elements may be used to provide different asymmetric light outputs.

Disclosed are a device and a method for pressure-molding an anti-overheating CSP fluorescent membrane. The device comprises a frame, a mould pressing device, a force measuring device, a control device and a feeding device; and the mould pressing device comprises an upper pressing mould, an upper clamp, a lower pressing mould, a guide post, an elastic supporting structure, and a lower clamp. As the stage of pressing the elastic supporting structure is added to the course of pressure molding, a mould clamping force of the pressure molding increases in a relatively steady way, and a force impact of a mould clamping device is reduced, thereby easily determining an initial point for maintain temperature of the pressure molding. The present invention effectively prevents overheating caused by long-term and large-area contact between the lower clamp and the heating lower pressing mould, and avoids the process defect of premature melting of the fluorescent membrane due to overheating, thereby greatly improving the product consistency and yield rate of the CSP-package fluorescent membrane in the pressure molding process.

Disclosed are a device and a method for pressure-molding an anti-overheating CSP fluorescent membrane. The device comprises a frame, a mould pressing device, a force measuring device, a control device and a feeding device; and the mould pressing device comprises an upper pressing mould, an upper clamp, a lower pressing mould, a guide post, an elastic supporting structure, and a lower clamp. As the stage of pressing the elastic supporting structure is added to the course of pressure molding, a mould clamping force of the pressure molding increases in a relatively steady way, and a force impact of a mould clamping device is reduced, thereby easily determining an initial point for maintain temperature of the pressure molding. The present invention effectively prevents overheating caused by long-term and large-area contact between the lower clamp and the heating lower pressing mould, and avoids the process defect of premature melting of the fluorescent membrane due to overheating, thereby greatly improving the product consistency and yield rate of the CSP-package fluorescent membrane in the pressure molding process.

An LED lamp provides a strong red color with a natural appearance. The LED lamp is provided with an LED module and a filter. The LED module includes a blue LED with a main emission peak in the 440 nm to 460 nm wavelength band, a green/yellow phosphor that is excited by light emitted by the blue LED, and a red phosphor that is excited by light emitted by at least one of the blue LED and the green/yellow phosphor. The filter reduces the spectral radiation intensity of at least a portion of the 570 nm to 590 nm wavelength band among light emitted by the LED module.

A medical luminaire, for example a dental treatment luminaire for the intraoral illumination of a surgical field, has at least one illuminating unit with light-producing means and with optical means for generating a field of light in an object plane, wherein a diffuser is provided that is designed to widen the field of light in the object plane.

A light module includes a light emitting diode (LED) array and a double-reflective assembly coupled to the LED array. The double-reflective assembly includes a lower member having a frame. The frame has an opening corresponding to the LED array. The frame and LED array are located in the same plane. The light module further includes a left bottom reflector and a right bottom reflector. The light module further includes an upper member which includes a left top reflector; and a right top reflector, wherein the left top reflector is attached to the left bottom reflector, and right top reflector is attached to the right bottom reflector, each forming an arbitrary left and right double-reflective assembly. A shape geometry and profile of each double-reflective assembly provides a pre-calculated combined non-circular asymmetrical intensity distribution pattern. The intensity distribution pattern is a superposition of light reflected from the bottom reflectors, light reflected from the top reflectors, light doubly reflected from both the top and bottom reflectors, and light directed into the intensity distribution pattern directly from the LED array.

The present invention relates to a display device and, particularly, to a display device using a semiconductor light-emitting device. The display device according to the present invention comprises a semiconductor light-emitting device, and the semiconductor light-emitting device comprises: a first conductive semiconductor layer; a second conductive semiconductor layer having a lateral surface, and overlapped with the first conductive semiconductor layer; a first conductive electrode electrically connected to the first conductive semiconductor layer; and a second conductive electrode electrically connected to the second conductive semiconductor layer, wherein the second conductive semiconductor layer has an inclined part inclined with respect to the lateral surface, and the second conductive electrode is formed so as to cover the inclined part.

The present invention relates to a display device and, particularly, to a display device using a semiconductor light-emitting device. The display device according to the present invention comprises a semiconductor light-emitting device, and the semiconductor light-emitting device comprises: a first conductive semiconductor layer; a second conductive semiconductor layer having a lateral surface, and overlapped with the first conductive semiconductor layer; a first conductive electrode electrically connected to the first conductive semiconductor layer; and a second conductive electrode electrically connected to the second conductive semiconductor layer, wherein the second conductive semiconductor layer has an inclined part inclined with respect to the lateral surface, and the second conductive electrode is formed so as to cover the inclined part.

A lighting selection system and method obtain individualized characteristic data for each of plural light emitting devices, determine a difference between a value of the characteristic data and a designated target value for each of the light emitting devices, and group the light emitting devices into different groups based on the differences between the values of the characteristic data and the designated target value. The differences of the light emitting devices in a common group of the groups are closer together than the differences of the light emitting devices in other groups of the groups. The system and method also may select at least one of the groups of the light emitting devices for inclusion in a light device.

A lighting selection system and method obtain individualized characteristic data for each of plural light emitting devices, determine a difference between a value of the characteristic data and a designated target value for each of the light emitting devices, and group the light emitting devices into different groups based on the differences between the values of the characteristic data and the designated target value. The differences of the light emitting devices in a common group of the groups are closer together than the differences of the light emitting devices in other groups of the groups. The system and method also may select at least one of the groups of the light emitting devices for inclusion in a light device.