Abstract:
A lighting module has an LED (44), a lens (45) over the LED to produce a beam-shaped output from the LED and a collimator (50) arranged to partially collimate the beam-shaped output. Blue light is provided at large angles to the normal, for example using a filter arrangement (54, 56) over the collimator which is adapted to filter light from the collimator at relatively large angles to the normal. The filter arrangement does not filter light from the collimator at relatively small angles to the normal. Thus, the module provides white task light in a normal direction and blue ambient light at steep angles. The overall system can be compact and light efficient.
Abstract:
An automated luminaire with an array of light sources (40) configured in a plurality of primary TIR optics (24) with central light blocks (26). The light blocks are configured to block or redirect light beam at angles likely to cause undesirable light spill.
Abstract:
An optical element (100) for use in front of a light source (102) for obtaining a skylight appearance, a lighting system and a luminaire are provided. The optical element (100) comprises a light transmitting cell which comprises a light transmitting channel (116), a light input window (106), a light exit window (110) and a wall (108). The light transmitting channel (116) collimates a part of light (104) emitted by the light source (102). The light input window (106) is arranged at a first side of the light transmitting channel (116) and receives light (104) from the light source (102). The light exit window (110) emits light with the skylight appearance. At least a part of the light exit window (110) is arranged at a second side of the light transmitting channel (116) opposite to the first side. The wall (108) is interposed between the light input window (106) and the part of the light exit window (110). The wall (108) encloses the light transmitting channel (116). At least a part of the wall (108) is reflective and/or transmissive in a predefined spectral range to obtain a blue light emission at relatively large light emission angles with respect to a normal to the part of the light exit window (110).
Abstract:
A luminaire, comprising a light source (6,7) for producing light radiation leaving the luminaire through its front side. The luminaire comprises a dome-like concave reflector (1) around a central axis (2) perpendicular to said front side. The luminaire comprises a tubular louver (11), being positioned around said central axis (2) in front of the light source (6,7) and being located at least partly inside said concave reflector (1). The louver (11) has a substantial tubular wall and both sides (12,13) of the wall have a light reflecting surface. The louver (11) is connected with the remainder of the luminaire through connection means (17), which are substantially located in the area of the luminaire behind the louver (11). The connection means (17) engage the louver (11) near its back edge (15), which is directed to the light source (6,7).
Abstract:
System of reflectors and base of parabolic fluorescent luminary for concentrating and guiding the light, aimed to the improving of its light output and parallel reduction of the construction cost. On the support base (1) of the electrical components of the luminary, the two of the four side walls are made of separate plastic accessories (6), which are assembled by easy and quick snapping on the main body (5) of iron sheet base (1). The plastic side walls (6) of the base (1) have specific cavities and projections (11, 12) in order to maintain a grid of parabolic reflectors (2, 3) which is separable and consists of two separate parts. The one part is the main parabolic components (2) of directing the light, which are placed under the fluorescent lamps (4), while the other is the upper cross-made grid (3), which can be removed from the luminary independently of the main parabolic components (2). Thus, the main parabolic components (2) do not need to have openings along the lamps (4). As a result, their continuous parabolic shape improves significantly the light output of the parabolic luminary.
Abstract:
A low-luminance grid consisting of an upper grid (1), a light filter (2) of woven synthetic material and a lower grid (3). These three parts (1, 2 and 3) are interconnected. Building in the light filter (2) will prevent unpleasant dazzling from the light source through the openings of the low-luminance grid. The low-luminance grid may have different cross sections. The light filter (2) can be made of other materials than woven synthetic material, and the light filter (2) can be placed in different ways in the plane of the low-luminance grid. The light filter (2) also serves as reinforcement, with a plane-stabilizing effect on the low-luminance grid.
Abstract:
The invention relates to an optical component (140) for a luminaire (100). The optical component (140) comprises a carrier plate (141) having an upper surface (141a) and a lower surface (141b), and a plurality of lens elements (142) provided on the upper surface(141a). Each two neighboring lens elements (142) has an intermediate region (143). In each intermediate region (143), the carrier plate (141) comprises a slit (144) having an elongated 5shape with an axis of elongation parallel to a plane of the carrier plate (141). The optical component (140) can be used in a luminaire (100) to meet the office requirements regarding glare, in particular the L65 requirement.
Abstract:
La présente invention concerne un assemblage optique pour un projecteur, comprenant : - un élément optique avec un ensemble de lentilles, lesdites lentilles étant adaptées pour coopérer avec une première pluralité de sources lumineuses, telles que des DEL, dudit projecteur, dans lequel lesdites lentilles sont adaptées pour générer des faisceaux lumineux primaires et sont espacées les unes des autres à l'aide d'espaces inter-lentilles, - une grille pour remplir au moins une partie desdits espaces inter- lentilles dudit ensemble de lentilles, adaptée pour coopérer avec une deuxième pluralité de sources lumineuses, telles que des DEL, dudit projecteur, dans lequel ladite grille est adaptée pour générer un effet lumineux secondaire, et - un élément de support, adapté pour supporter l'ensemble de lentilles, au niveau des espaces inter-lentilles, dans lequel la grille et l'élément de support sont adaptés pour se superposer en enfermant l'élément optique entre la face intérieure de la grille et la face supérieure de l'élément de support et fixer ainsi l'ensemble de lentilles afin de former l'assemblage optique.