摘要:
A light assembly (910) that includes a base (912), a housing (914) extending from the base having a partial paraboloidal cross-sectional surface, a light-shifting element (940) disposed within the housing, and a plurality of light sources (920) coupled to the housing. The light sources generate light. The light assembly also includes an angular portion (924) reflecting light from the light sources toward the parabolic cross-sectional surface so that the light reflected from the parabolic surface is directed toward the light-shifting element and light reflected from the light-shifting element is directed out of the housing after reflecting from the housing.
摘要:
Die vorliegende Erfindung betrifft eine Leuchte, vorzugsweise eine Wand- und/oder Deckenleuchte, mit zumindest einer vorzugsweise punktförmigen Lichtquelle, vorzugsweise in Form einer LED, und zumindest einem Optiksystem zur Steuerung der Lichtausbreitung. Die Erfindung betrifft weiters ein Verfahren zur Herstellung einer solchen Leuchte. Erfindungsgemäß besitzt das Optiksystem zur Steuerung der Lichtausbreitung mehrere ineinander angeordnete, jeweils zumindest teilweise transparente Korpusteile, die von dem Licht der Lichtquelle nacheinander durchstrahlbar sind, wobei zumindest ein Innenteil und zumindest ein Außenteil vorgesehen ist, welches sowohl das genannte Innenteil als auch die Lichtquelle und den Bereich, in den die Lichtquelle emittiert, umschließt. Das besagte Außenteil ist hierbei insbesondere dazu vorgesehen, im ausgeschalteten Zustand der Lichtquelle das äußere Erscheinungsbild der Leuchte zu prägen. Das Innenteil des Optiksystems ist indes vorgesehen, beispielsweise durch Bündelung, Streuung oder Reflexion des abgegebenen Lichts das Erscheinungsbild der Leuchte im eingeschalteten Zustand zu prägen.
摘要:
A light emitting device comprises: a thermally conductive substrate (MCPCB); at least one LED mounted in thermal communication with a surface of the substrate; a housing attached to the substrate and configured such the housing and substrate together define a volume that totally encloses the at least one LED, the housing comprising at least a part that is light transmissive (window); and at least one phosphor material provided on an inner surface of the housing within said volume said phosphor being operable to absorb at least a part of the excitation light emitted by the at least one light emitting diode and to emit light of a second wavelength range. The housing is attached to the substrate such that the volume is substantially water tight, preferably air/gas tight.
摘要:
A subject is to provide a reflector 12 for use in a light emitting device 10, and a light emitting device 10 using the same, which are capable of significantly improving a uniformity ratio of light intensity on an irradiation target surface A when light emitted from a plurality of directional light sources 26a, 26b is reflected thereon. To solve the above subject, micro reflector segments 29 are protruded from a concave reflecting surface 20 of the reflector 12 in multiple stages and in multiple radial columns, the micro reflector segments each having a convex curved surface 29a which is defined by a locus of a circular arc moved in parallel in a radial direction of the concave reflecting surface 20; and a radius R of the convex curved surface 29a is set, in each of the reflection regions S1, S2, to be smaller when the convex curved surface 29a is positioned closer to a point P on which light emitted from each of the directional light sources 26a, 26b and traveling on the light axis L is incident, and is set to be larger when the convex curved surface is positioned more distant from the point P.
摘要:
A light-emitting device (1) comprises a substrate (2) on which a plurality of light-emitting elements (3) are arranged and mounted in two lines, and sealing members (4a) and (4b) of two lines each sealing the plurality of light-emitting elements of each line. A distance (B) between the lines of the sealing members is equal to 0.5 times or more but 2 times or less a width (A) of the sealing member of each line.
摘要:
A lighting system includes at least two light-emitting diodes each emitting, in operation, visible light in a preselected wavelength range. A converter converts part of the visible light emitted by one of the diodes into visible light in a further wavelength range so as to optimize the color rendition of the lighting system. The diodes include a blue light-emitting diode and a red light-emitting diode. Further, the converter includes a luminescent material for converting a portion of the light emitted by the blue light-emitting diode into green light.
摘要:
Disclosed is a lighting device. The lighting device includes: a heat radiating body (40) including a receiving groove; a reflective structure (30) being disposed in the first receiving groove (47) and reflecting incident light to the outside; a light emitting module unit (20) being disposed on the circumference of the lower part of the heat radiating body and emitting light; and a cover being (10) disposed under the light emitting module unit and reflecting light emitted from the light emitting module unit to the reflective structure.
摘要:
The present invention relates to a light fitting or light fixture (1) that includes a light source (2), a reflector (3) and a glass cover (4), wherein the light source (2) has a generally punctiform configuration and wherein the surface of the glass cover (4) includes a large quantity of lenses (5) which are intended to diffract the light asymmetrically so as to illuminate a rectangular square surface area at right angles to the optical axis of respective lenses (5). The invention is characterized in that the glass cover (4) comprises mutually parallel and upwardly projecting crests (7) defined by two mutually opposing side surfaces (8, 9) that are angled with respect to each other, wherein each crest (7) has a wave form in the longitudinal direction of the crest such that the height of the crest (7) will vary, in that the bottom surface between two mutually adjacent crests has a corresponding wave form such that the height of the bottom will vary, in that the width of the crest (7) at its bases (10) is constant or varying, meaning that the side surfaces (8, 9) of the crests (7) will have a wave form that corresponds to the variations in height of the crest, wherein each wave section of a crest (7) forms a prism for diffracting incident light from the reflector (3), whereby the top angle of the crests (7) causes light to be spread in a first direction and where the wave form of the crest side surfaces (8, 9) causes light to spread in a second direction at right angles to said first direction and in that the light from each prism illuminates a part of the illuminated surface.