摘要:
The invention relates to an illumination system (50), a beam-control element and a light source (30). The illumination system comprises the light source for emitting a light beam and a beam-control element for controlling the shape and/or direction of the light beam. The beam-control element comprises a resilient layer (2a) and a further layer (4a) being arranged substantially parallel to each other, the resilient layer comprising a relief (21) on a surface of the resilient layer arranged substantially parallel to the further layer, or the further layer comprising the relief on a surface of the further layer facing the resilient layer. The illumination system further comprises moving means (52) for moving the resilient layer and the further layer with respect to each other for reducing the relief by applying a pressure between the resilient layer and the further layer. The relief controls the shape and/or direction of the light-beam. When the relief is reduced by applying pressure, the light beam is substantially unaltered by the beam-control element.
摘要:
A luminescent converter 200, 220, 240, 260, a phosphor-enhanced light source and a luminaire are provided. The luminescent converter 200 comprises a first organic luminescent material 202, a second organic luminescent material 208 and a third inorganic luminescent material 206. The first organic luminescent material 202, the second organic luminescent material 208 and the inorganic luminescent material 206 absorb a portion of light emitted by the light source and/or absorbs a portion of light emitted by at least one of the other luminescent materials. The first organic luminescent material 202 converts at least a part of the absorbed light into light of a first color distribution. The second organic luminescent material 208 converts at least a part of the absorbed light into light of a second color distribution. The inorganic luminescent material 206 converts at least a part of the absorbed light into a third color distribution to compensate self-absorption of light by at least one of the first organic luminescent material 202 and the second organic luminescent material 208.
摘要:
The invention relates to a lighting apparatus (1) for generating a light pattern. A light source (4) generates a light beam (5) for being directed onto a liquid crystal cell (2). The liquid crystal cell (2) comprises a periodic structure (3). If voltage is applied to the liquid crystal cell (2) by a voltage source (8), a period phase pattern is generated. The liquid crystal cell (2) and the light source (4) are adapted such that multiple separate light beams (6) are generated in different directions by diffraction at the generated periodic phase pattern, wherein the multiple separate light beams (6) form the light pattern (7). Since the light pattern is generated by diffraction at the periodic phase pattern, which is modifiable by applying voltage, different light patterns can be generated, in particular, for decorative purposes, in a technically relatively simple way.
摘要:
An aqueous curable imprintable medium having at least one curable compound according to Formula 1: wherein R1-R3 are hydrolysable alkoxy groups, and wherein R4 is selected from the group consisting of C1-C6 linear alkyl groups, hydrolysable alkoxy groups and a phenyl group; and a photo-acid generator or a photo-base generator. Such a medium may have an extended shelf-life and may facilitate the formation of highly reproducible patterned layers when used in an imprint lithography process.
摘要:
A controllable light angle selecting device (100) is provided. It comprises a fixed light selecting means (110) adapted to transmit light incident thereon within a limited acceptance angle, optically connected to at least one light redirecting means (120) capable of obtaining a variable angular difference between light entering said light redirecting means (120) and light exiting said light redirecting means. A photometer, comprising a controllable light angle selector arranged in the path of light between a light source and a light measuring sensor is also provided.
摘要:
The invention relates to a lighting system, a light element for use in such system, and a display comprising such a lighting system. The lighting system comprises light elements (5) such as LEDs or OLEDs, located between two preferably transparent substrates (2, 3) provided with an electrically conducting layers. The light element has sliding electrical contacts, enabling movement of the light element between the substrates while being lit. Such a system provides a relatively simple lighting system allowing for easy modification.
摘要:
The invention provides a light module (1) with a light source (2) for emitting a beam of light (5), an adjustable optical element (300) for adjusting the beam of light (5) from the light source (2) into an adjusted beam of light (25) with a scattering pattern that is electrically variable; and a controller (304) for controlling, in response to an adjusting control signal (371), at least one element of a group of elements comprising the adjustable optical element (300) and the light source (2) by means of at least one driving signal (375, 376). A multi-purpose light, for example for interior car lighting, is advantageously provided thereby.
摘要:
A luminescent converter 200, 220, 240, 260, a phosphor-enhanced light source and a luminaire are provided. The luminescent converter 200 comprises a first organic luminescent material 202, a second organic luminescent material 208 and a third inorganic luminescent material 206. The first organic luminescent material 202, the second organic luminescent material 208 and the inorganic luminescent material 206 absorb a portion of light emitted by the light source and/or absorbs a portion of light emitted by at least one of the other luminescent materials. The first organic luminescent material 202 converts at least a part of the absorbed light into light of a first color distribution. The second organic luminescent material 208 converts at least a part of the absorbed light into light of a second color distribution. The inorganic luminescent material 206 converts at least a part of the absorbed light into a third color distribution to compensate self-absorption of light by at least one of the first organic luminescent material 202 and the second organic luminescent material 208.
摘要:
The present invention relates to a photovoltaic cell device with combined energy conversion and lighting option and a method a controlling such a device. It comprises a responsive element, a reflector or a light source for changing light absorption and thus appearance of photovoltaic cells (e.g. solar panel). It is also possible to combine the responsive element or the reflector with light source(s) providing extra illumination. When combined with a sensor and control unit, ambient intelligent solar panels and ambient intelligent lighting systems can be obtained. A combination of a luminescent solar concentrator (LSC) and light-emitting device is also possible, where an energy storage device is charged by a photovoltaic cell upon irradiation. The energy storage powers one or more light sources which are coupled to the sides of the luminescent plate. The light emitted by the light sources is coupled into the plate and (partly) converted by the luminescent plate. This results in a plate that homogeneously emits light.
摘要:
The present invention relates to a spectral detection device (100) for detecting spectral components of received light, wherein the spectral detection device (100) comprises a filtering structure (110) arranged to filter the received light and output light with a wavelength within a predetermined wavelength range; and a light sensor (120) arranged to detect the light output by the filtering structure (110), wherein the filtering structure (110) is variable to allow a variation of the predetermined wavelength range over time.The arrangement enables a compact spectral detection device that may be provided at a low cost.