Abstract: The present invention relates to a light guide device for the introduction of sunlight into the interior of a building, having a multitude of movably mounted light deflection surfaces which are adjustable by control means depending on the position of the sun. According to the present invention the light deflecting surfaces of the light guide device are formed by serially arranged deflecting blades which may be swiveled about swivel axes which are approximately parallel to each other, the blades being mounted on a blade holder which is rotatable about a rotational axis which is essentially perpendicular to the direction of the swivel axes.

Abstract: A lighting device, in particular in the form of a ceiling, wall, floor or outside light, having a punctiform light source, preferably in the form of an LED, and a lens assigned to the light source, which has a light entry recess in the form of a bowl or blind hole, which deflects at least part of the incident light, indirectly or directly, onto a totally reflecting and/or mirrored lateral surface, which in turn deflects the light onto a light exit surface, which forms a front side of the lens located opposite the light entry recess. The lateral surface of the lens, which deflects the light coming directly or indirectly from the light entry surface onto the light exit surface by means of total reflection and/or mirroring, is provided with a multiplicity of facets.

Abstract: The present invention relates to a light guide device for the introduction of sunlight into the interior of a building, having a multitude of movably mounted light deflection surfaces which are adjustable by control means depending on the position of the sun. According to the present invention the light deflecting surfaces of the light guide device are formed by serially arranged deflecting blades which may be swiveled about swivel axes which are approximately parallel to each other, the blades being mounted on a blade holder which is rotatable about a rotational axis which is essentially perpendicular to the direction of the swivel axes.

Abstract: An operating lamp includes at least one white light source for illuminating an operating area, a plurality of colored light sources for illuminating the operating area, and a controller adapted for dimming a light intensity and controlling a spectrum of a combined illumination from the white light source and the colored light sources on the operating area.

Abstract: A lighting apparatus including a number of light modules oriented to illuminate a work site, an array of individually controllable lights disposed on each of the light modules, and a lighting controller configured to individually control the lights disposed on the light modules to selectively define concentric illumination zones.

Abstract: A lighting apparatus including a number of light modules oriented to illuminate a work site, an array of individually controllable lights disposed on each of the light modules, and a lighting controller configured to individually control the lights disposed on the light modules to selectively define concentric illumination zones.

Abstract: An operating lamp includes at least one white light source for illuminating an operating area, a plurality of colored light sources for illuminating the operating area, and a controller adapted for dimming a light intensity and controlling a spectrum of a combined illumination from the white light source and the colored light sources on the operating area.

Abstract: A luminaire for an elongate lamp has longitudinal reflectors running parallel to the lamp and a multiplicity of spaced-apart transverse lamellae. The lamellae have a bottom, tapering region with a bottom edge that is curved. The cross-section of the bottom, tapering region is of the same shape over the width of the transverse lamellae. The edges of the bottom tapering region have the same curvature, with the lower edge coinciding with the bottom edge of the transverse lamellae.

Abstract: A process for manufacturing a panel light-guiding element, including the step of rolling a metal body of one of aluminum and an aluminum alloy in at least one pass between at least two rolls to form a rolled product having at least one structured surface as a light guiding structure having a rib pattern of height h and a tooth-like cross-section. The tooth-like cross-section have a periodic structure of rows of triangles. The triangles have bases which follow each other, a first side of each of the triangles running at an angle &agr;, and a second side at an angle &bgr; from the base which has a length l. At least one of the rolls exhibits an embossed pattern that is structured to form the rib pattern in a rolling direction over a full length of the rolled product and is tooth-like in cross-section so that the angle &agr; is in a range of 5 to 60°, the angle &bgr; in a range of 10 to 90°, the length l in a range of 0.01 to 10 mm and the height h is 0.1 to 2 mm.

Abstract: Light-guiding surface of metal in the form of a rolled product, said rolled product having at least one structured surface created by a rolling process.

Abstract: A light-guiding panel element arrangeable on a wall or a ceiling for lighting purposes. The light-guiding panel element including a walled metal body having at least one structured surface as a light deflecting structure with a ray of the pattern height h and a toothed-like cross-section. The tooth-like cross-section represents a period structure of rows of triangles. The triangles have bases that follow each other. A first side of each triangle runs at an angle &agr; and a second side at an angle &bgr; from the base which is length 1. The rib structure runs in a rolling direction, &agr; is an angle of 5 to 60°, &bgr; at an angle of 10 to 90°, a length l is 0.01 to 10 mm and the height h of the rib pattern is 0.1 to 2 mm. A line of contact of both sides of each triangle forms an edge with a radius r1 that is less than l/10.

Abstract: Luminaire for an elongate lamp, having longitudinal reflectors running parallel to the lamp and having a multiplicity of spaced-apart transverse lamellae which have a bottom, tapering region and of which the bottom edge is curved, where the cross section of the bottom, tapering region (4) is of the same shape over the width of the transverse lamellae (3), and where the edges (8), which bound the bottom, tapering region (4) in the upward direction, coincide, in terms of curvature, with the bottom edge (9) of the transverse lamellae (3).

Abstract: Anti-glare fitment with a plurality of elongate light-deflecting slats which are arranged above one another, at a distance from each other, are reflective on their upper surface and preferably have a cross-section which is upwardly curved in a concave manner, whereby the light-deflecting slats are, at least within an area, perforated.

Abstract: An illuminating apparatus wherein light which is emitted by one or more projectors is divided into light beams by reflectors or lenses and is directed against the surface to be illuminated by an array of neighboring luminant spots in such a way that the eye of an observer looking at the spots from the surface to be illuminated is not affected by glare, that the surface is adequately illuminated, and that the eye can discern discrete luminant spots. This is accomplished by causing several light beams to impinge upon each unit area of the surface to be illuminated and by appropriate selection of the distance of the surface to be illuminated from the luminant spots as well as by appropriate selection of maximum dimensions of the spots and their mutual spacing in the array.

Abstract: The specular lamp or lighting fixture comprises a fluorescent tube as a light bulb which is arranged largely within a channel-shaped counter-reflector. Cross-lamellae for blanking the light of the fluorescent tube out in the longitudinal direction are seated on the counter-reflector. A channel-shaped main reflector which is designed large, and whose surface is preferably matted, is situated opposite the counter-reflector. A uniform luminance in the radiation region and a compact structure are achieved with the specular lamp. The luminance does not exceed a prescribed value in a prescribed, screened region.

Abstract: A signal generator equipped with a shading device and two light sensors is arranged on the upper side of a slat equipped with retro-reflective prisms and rotatable about a longitudinal axis. Depending upon the sun's position relative to the slat, the light sensors are variously shaded or illuminated by means of the shading device, and when the slat is rotated about its longitudinal axis, the light sensors supply electrical code values which change in opposing directions. A difference between the code values is fed via an amplifier to a servo-motor which rotates the slat about its longitudinal axis until the plane of incidence of the sun's rays, which passes through the longitudinal axis, is at right angles to the upper side of the slat. This ensures that sun's rays which hit the slat are reflected regardless of the sun's position, the time of year, and the alignment of the facade plane in which the slat is arranged.

Abstract: With the purpose of obtaining an axial angle of cut off for a luminaire with a rodlike lamp (1) a glare protection is arranged comprising lamellas (2), the lamellas being arranged immediately at or around the surface of the lamp to form axially spaced and radially outward from the surface extending effective surfaces.

Abstract: The daylight enters the room through at least one inner light port which is limited at the top by a flat upper reflector and at the bottom by a parabolic lower reflector. A diagonal beam having a diagonal angle passes through the upper edge of the inlet window and through the lower edge of the inner window. All of the light entering through the light port is emitted into the room above the diagonal beam. To accomplish this, the lower reflector represents, in cross-section, part of a parabola whose main axis passes through the upper edge of the inlet window, and which forms with the vertical an upwardly directed main axis angle. Also, the angle of inclination measured from the main axis of the upper reflector is equal to half the diagonal angle measured in relation to the main axis. By superimposing an outer light port, a given window surface can be better exploited and can be protected from interference light entering from below.

Abstract: Light fixtures with a rod-shaped light source (1) and with concave reflectors on both longitudinal sides of the light source. The concave reflectors extend above the light source, and have a curvature such that all light rays reflected across the light source will emerge in the transverse direction either directly or after reflection at an angle that is steeper than a light-specific masking angle (.alpha.). The reflectors include lamellae (4) that have an approximately V-shaped cross section and run across the middle vertical longitudinal plane of the light source and have reflecting concave side surfaces with a curvature such that all light rays reflected in the longitudinal direction of the light source (1) will emerge in the longitudinal direction either directly or after reflection at an angle that is steeper than a light-specific masking angle (.beta.).

Abstract: With roof windows of any inclination and orientation, it should be possible to adjust the sunshade effect throughout the year and to have at the same time a good transparence to daylight. For this purpose, there is used a prismatic plate, flat at the outside, and which is provided at the inside with parallel prismatic bars having a surface free of a reflecting layer on a right angle side. According to the invention, the other surface on the other side is provided with a reflecting layer and forms with the non-reflecting surface a right angle. Furthermore, the prismatic bars are arranged perpendicularly to the intersection line which is defined by the intersection plane with which the solar beams, during the longest day, form the maximum incidence angle .psi..sub.max with respect to the plane of the window. For the angle .alpha. of the base of the non-reflecting surface, a value may be selected with which there is obtained a sunshade effect and at the same time optimum conditions of transparency to daylight.