A solid state lamp includes a connector and a bulb portion with multiple strips.

A solid state lamp includes a connector and a bulb portion with multiple strips.

LED lamp systems having improved light quality are disclosed. The lamps emit more than 500 lm and more than 2% of the power in the spectral power distribution is emitted within a wavelength range from about 390 nm to about 430 nm.

LED lamp systems having improved light quality are disclosed. The lamps emit more than 500 lm and more than 2% of the power in the spectral power distribution is emitted within a wavelength range from about 390 nm to about 430 nm.

An optoelectronic device including light-emitting components, each light-emitting component being adapted to emit a first radiation at a first wavelength, and photoluminescent blocks, each photoluminescent block facing at least one light-emitting component and comprising a single quantum well or multiple quantum wells, photoluminescent blocks being divided into first photoluminescent blocks adapted to convert by optical pumping the first radiation into a second radiation at a second wavelength, second photoluminescent blocks adapted to convert by optical pumping the first radiation into a third radiation at a third wavelength and third photoluminescent blocks adapted to convert by optical pumping the first radiation into a fourth radiation at a fourth wavelength.

An optoelectronic device including light-emitting components, each light-emitting component being adapted to emit a first radiation at a first wavelength, and photoluminescent blocks, each photoluminescent block facing at least one light-emitting component and comprising a single quantum well or multiple quantum wells, photoluminescent blocks being divided into first photoluminescent blocks adapted to convert by optical pumping the first radiation into a second radiation at a second wavelength, second photoluminescent blocks adapted to convert by optical pumping the first radiation into a third radiation at a third wavelength and third photoluminescent blocks adapted to convert by optical pumping the first radiation into a fourth radiation at a fourth wavelength.

Provided is a wavelength converting composite member including: a disk-shaped substrate; a first wavelength converting member provided on the substrate and containing a first phosphor that radiates fluorescence due to a parity-forbidden transition; and a second wavelength converting member provided on the substrate and containing a second phosphor that radiates fluorescence due to a parity-allowed transition. The first wavelength converting member and the second wavelength converting member are disposed adjacent to each other along the circumferential direction of the substrate. The first wavelength converting member and the second wavelength converting member are provided on the substrate in such a way that the position of the center of gravity of the entirety of the first wavelength converting member and the second wavelength converting member is located on the rotation axis of the substrate. A light emitting device is provided with the wavelength converting composite member.

Provided are a multi-flexible display device having improved image discontinuity at a panel boundary, and a method of manufacturing a double-sided reflector therefor. An image discontinuity phenomenon at a boundary between panels of a multi-flexible display device manufactured by tiling a plurality of flexible displays including a bendable panel may be easily and simply ameliorated using a double-sided reflector capable of being manufactured through a simple process and at low cost.

Provided are a multi-flexible display device having improved image discontinuity at a panel boundary, and a method of manufacturing a double-sided reflector therefor. An image discontinuity phenomenon at a boundary between panels of a multi-flexible display device manufactured by tiling a plurality of flexible displays including a bendable panel may be easily and simply ameliorated using a double-sided reflector capable of being manufactured through a simple process and at low cost.

A lamp projecting a starry sky is provided. The lamp projecting the starry sky includes at least one beam generator, a reflecting member with uneven and irregular reflecting surface, a first motor, and at least one first lens. The first motor is connected to the reflecting member through a connecting shaft, the reflecting member is driven to rotate when the first motor rotates, a light beam generated by the beam generator irradiates onto a first side of the reflecting member along an incident light path, and a light beam emitted from the reflecting member forms a moving and layering nebula projection after passing through the at least one first lens. In the lamp, after passing from the reflecting member, the light beam is magnified by the lens, so that the generated starry sky will not be too bright and dazzling, which effectively enhances the layering sense of the starry sky.