Abstract: A controlled-luminance lighting device comprising a fluorescent light source of a linear type (5), which extends longitudinally between a reflector (1) that is formed by an elongated body having a curved surface, and a set of transverse fins (3), which are set at a distance apart from one another and which define a grill for directional control of the light emitted by the light source (5). The reflector (1) defines, together with the transverse fins (3), a plurality of elements (2) set alongside one another of a generally parabolic shape.

Abstract: The invention provides in preferred aspects architectural lighting structures that comprise a plurality of tubular elements at least partially embedded into an at least substantially transparent lens structure of a lighting fixture. The lighting fixture is typically a device employed for interior use, particularly residential buildings or commercial buildings such as office buildings. By partially embedding the array or plurality of tubular elements into the transparent lens structure, the fixture can appear as if it is substantially a part of the surrounding surface when the lighting fixture is turned off. Nevertheless, when the light is turned on, light coming from the fixture can still be directed or modified in an appropriate manner, e.g. without detrimental light output reductions), and without the need of an expensive, sophisticated reflector or any necessity of the fixture extending beyond the surrounding surface as has been utilized in certain prior attempts to mask architectural lighting fixtures.

Abstract: A light-fixture shade-assembly mounting apparatus is operatively coupled to a light fixture via a plurality of coupling members, such as hinged limbs. A hinged limb may be coupled to a shade-assembly via a peg inserted through a bore. A locking mechanism may secure the shade assembly into a normal-operation position and may allow the shade assembly to be lowered into a bulb-replacement position. The locking mechanism may include a locking cam having an angled surface so that, as the locking cam engages a portion of the light fixture and rotates, the inclined surface of the locking cam will cause the position of the shade assembly to become higher or lower with respect to the light fixture. The locking mechanism may include a visual indication, such as an arrow, which allows a person to determine the locking cam's orientation relative to a locked position and an unlocked position.

Abstract: A display device having an indicator interposed between two light controlling elements. The light controlling elements act in cooperation to restrict the viewing angle of the display in at least two directions. Only one of the light collimating elements restricts the angle of ambient light entering the display.

Abstract: A parabolic louver and side light seal are disclosed for use in an overhead lighting system. The parabolic louver comprises a series of ultra-thin, lightweight stringers and baffles arranged perpendicular to one another and securely connected via “snap-fit” side and center joints. The side light seal comprises two side rails and two end rails. The two side rails are mounted to the sides of the parabolic louver to reinforce the louver, to provide a light seal, and to precisely locate the louver below the light source.

Abstract: A transparent base panel has embedded therein a series of uniformly, sized, shaped and spaced louvers that extend outwardly from the base panel at an angle &bgr;, to optimize light flowing in a direction from an inner surface toward an outer surface while minimizing an amount of light flowing from the outer surface to the inner surface. This louvered screen has application in making outdoor illuminated signs more readable, in screening sunlight out of a compartment such as a room, and in deflecting and/or tinting light from a direct or indirect lighting source.

Abstract: An optical element for deflecting light beams is formed form a plate-like core or element 1 of transparent material having tapered microprisms 2 one side, with furrows 7 formed between the microprisms, the furrows being covered with a reflective layer 12, and a foil 11 of transparent material arranged on a side of the reflective layer remote from the core or element 1.

Abstract: The present invention relates to a decorative shell of a bulb assembly of a light string. The decorative shell is provided with an inward extended connecting portion to engage with a bulb holder of a bulb assembly that keeps a complete original pattern of the decorative shell. A bulb of the bulb assembly can be inserted into inner space of the shell and near to front surface of the shell to increase lighting degree and decorative effect.

Abstract: A motor vehicle headlight comprises a light source, a reflector and an occulting mask. The mask comprises a set of elements which in pairs define, respectively, mutually facing faces which define between them passages extending through the mask in directions passing away from the light source.

Abstract: A transparent base panel has embedded therein a series of uniformly, sized, shaped and spaced louvers that extend outwardly from the base panel at an angle &bgr;, to optimize light flowing in a direction from an inner surface toward an outer surface while minimizing an amount of light flowing from the outer surface to the inner surface. This louvered screen has application in making outdoor illuminated signs more readable, in screening sunlight out of a compartment such as a room, and in deflecting and/or tinting light from a direct or indirect lighting source.

Abstract: A transparent pane arrangement with a prescribed installation alignment comprises at least one transparent substrate and at least two mutually spaced layers made from a material with variable transmission properties for visible light and/or thermal radiation. Both layers respectively have strips which are arranged parallel to one another and are made from the material with variable transmission properties.

Abstract: A lighting device has a light source and a light distributor arranged under it. Said light distributor has a distributor element which preferably consists of sheet metal and has an extensive main section with an incidence side facing the light source and a number of holes for the passage of light which widen in the direction away from the incidence side, and a collar for each of said holes. Preferably, a diffuser is arranged above the distributor element and possibly a diaphragm, preferably consisting of sheet metal, is arranged above said diffuser. The light distributor deflects and distributes light radiated downward through it, in such a way that said light makes at least a desired angle of, for example, at least 25° with a horizontal plane. The light distributor can be produced with a small height and economically and has a good antidazzle effect.

Abstract: A luminaire for suspended ceilings, which permits improved packing density for warehousing and shipping. The reflector of the luminaire is designed to permit it to be shipped in a flattened state. This increases the packing density and eliminates shipping and warehousing boxes whose volume is 95% air. The reflector is typically a single sheet including a top plane with hinged side panels that snap together with interlocking tabs. An assembled luminaire comprises three or four parts: the reflector, a ballasted-socket, a lamp, and an optional diffuser or lens. The reflector, ballasted-socket, lamp, and optional diffuser or lens are either shipped separately in bulk packs or shipped in kits containing the one or more sets of components to build the luminaire.

Abstract: A troffer which can be shipped to the retailer or job site in several pieces and assembled on site. The reflector portion of the troffer is shaped, such that, one reflector can be shipped within another. This allows any number of reflectors to be nested together to increase the packing density for shipping and warehousing. Thus, a dozen troffers can be packaged together in a volume only slightly greater than a. single conventional troffer. The assembly of the troffer is accomplished by merely clipping one or more ballasted-sockets into the troffer's reflector and the inserting lamps into the ballasted-socket. The assembly is then set into the ceiling grid and connected to the power source. If a diffuser or lens is desired, it is merely placed into the ceiling grid prior to the rest of the troffer's reflector.

Abstract: A luminaire capable of providing desirably uniform up-lighting when suspended from above, or mounted from below, or similarly uniform wall lighting when mounted as a sconce, having a longitudinally extended tapered hollow shell body which is open in the direction of intended illumination, a lamp mounting assembly, a fixture mounting assembly, and a louver assembly which is positioned between a lamp mounted in the fixture and the surface to be illuminated. The louver assembly is an integral unit having a supporting member which carries longitudinally spaced light-transmissive louvers which project from the body opening toward the illuminated surface. Each louver is formed of a partial disk which may be arcuate (e.g. semi-circular or semi-elliptical) or polygonal, and may have a beveled peripheral surface. The louver assembly is designed to produce the desired uniform illumination.

Abstract: A lighting fixture mounting device comprises a U shape channel having a bottom plate, side walls, extruding portions extruding sideward from both sides of the bottom plate and a wiring hole bored through the bottom plate. The lighting fixture is attached to the extruding portions, a wiring of the lighting fixture passes through the wiring hole and inside of the U shape channel to be connected to an external electric source, and the side walls are fixed to an object to which the lighting fixture is to be fixed. A lamp protecting device for a lighting fixture embedded in a built-in hole formed in a ceiling and having a flange formed on a lower end of a case of the lighting fixture and exposed out of the ceiling, comprises a guard fixing attachment made of a rectangular plate having a cutout through which the case can be passed through and outer ends folded to form steps corresponding to the thickness of the flange, and a guard made of circular members and rod like members connecting the circular members.

Abstract: The invention provides in preferred aspects architectural lighting structures that comprise a plurality of tubular elements at least partially embedded into an at least substantially transparent lens structure of a lighting fixture. The lighting fixture is typically a device employed for interior use, particularly residential buildings or commercial buildings such as office buildings. By partially embedding the array or plurality of tubular elements into the transparent lens structure, the fixture can appear as if it is substantially a part of the surrounding surface when the lighting fixture is turned off. Nevertheless, when the light is turned on, light coming from the fixture can still be directed or modified in an appropriate manner, e.g. without detrimental light output reductions), and without the need of an expensive, sophisticated reflector or any necessity of the fixture extending beyond the surrounding surface as has been utilized in certain prior attempts to mask architectural lighting fixtures.

Abstract: A translucent louver assembly is provided with one or more translucent louver baffles and a plurality of opaque baffles. The baffles are mounted in a lighting fixture housing such that the assembly defines a plurality of discrete light-directing cells. The translucent louver baffle provides uniform brightness and color to the cells of the light fixture, including when two or more light fixtures are joined end to end, as typically found in large stores, warehouses, and the like.

Abstract: An apparatus and method for providing uniform intensity light is disclosed. The apparatus comprises a transparent sheet, substantially transparent at a wavelength region of interest, and a line pattern, printed on a first side of the transparent sheet. The line pattern selectively blocks a portion of light transmitted through the transparent sheet, creating a substantially uniform light intensity for the transmitted light.

Abstract: A bollard light with enhanced function of diffusing lamp light with a special light colour effect. A transparent coloured diffuser rim is retrofitted onto a clear diffuser lens. The transparent coloured diffuser rim serves to diffuse lamp light with a special light colour effect, while the clear diffuser lens serves to distribute natural lamp light. The concept using a modular louvre unit in conjunction with an intermediate diffuser lens allows for multi-tier louvre configuration. The retrofitting design of a coloured diffuser rim allows for interchangeability and multi-colour choice of coloured diffuser rims. The flexible shape concept of the bollard head allows for choice of various shapes, which can be complemented by similar shapes of bollard body and canopy which can also be of hemispherical, pyramid, flat-top or angular design.

Abstract: A display case lighting system having a lens positioned inside a display came adjacent a light source inside the case for directing light across a viewing plane within the case and reducing contrasting illumination of items displayed within the viewing plane.

Abstract: A lamp shade together with a lamp base and light source which includes one or more flexible and stretchable translucent annular sheets with large and small ring elements on the edge portions of each sheet, one ring element of each pair being fixed to the lamp base and the other being movable so that the associated annular sheet can be located in a selected position in relation to the light source.

Abstract: A grid defining illumination cells having areas to pass light from a source for use in generation of a lines, wherein the grid is defined by first lines extending about one axis defined by the source, and second lines emanating from the axis to intersect first lines, each cell having four edges defined by successive of first lines and successive of second lines, the cells having one of the following: i) equal areas ii) areas that increase in direction away from the source.

Abstract: A luminaire design for suspended ceilings, which permits improved packing density for the warehousing and shipping. The assembled luminaire comprises three or four parts: a reflector, a ballasted-socket, a lamp, and an optional diffuser or lens. The tapered design of the reflector allows the reflectors to be stored and transported with one reflector nested within another; therefore, a stack of a dozen luminaires take up only slightly more volume than one conventional luminaire. When the luminaires are installed at the job site, a ballasted-socket is clipped into a mounting hole in the reflector, a lamp is inserted into the socket of the ballasted-socket, this assembly is placed into the ceiling grid, and the ballasted-socket is connected to a power source. If a diffuser or lens is desired, it is merely placed in the ceiling grid before the rest of the assembly.

Abstract: A housing for a direct-indirect lighting fixture having a light baffle in the bottom opening of the fixture is fabricated from a unitary extruded part having a baffle plate integrally interconnecting sidewall portions and a central housing structure for the lighting fixture housing. The baffle plates are provided with a suitable aperture pattern by means of a punching process.

Abstract: A lighting structure and method of forming a lighting structure including a light transmitting lens positioned in front of a light source, whereby the light transmitting lens has a substantially non-opaque front surface and a light receiving rear surface, and an array of substantially tubular elements positioned proximate to the substantially non-opaque front surface of the lens. The lighting structure may further include a reflective surface that projects light from the light source to the rear surface of the light transmitting lens and through the light transmitting lens. When the lighting structure is turned off, the array of substantially tubular elements is capable of making lighting structure appear to be a part of the surrounding surface in which the lighting structure is embedded. When the lighting structure is turned on, the array of substantially tubular elements masks the sight of the light source and shields a viewer's eyes from the glare of the reflector.

Abstract: A decorative lighting louver element is described in which a louver body includes opposed side surfaces. The louver body further includes a top end and a bottom end. A decorative member is sandwiched between the opposed surfaces and includes an edge that is visually exposed adjacent the bottom end of the louver body.

Abstract: An electric lamp device which is capable of suppressing obstruction light toward the sky even if being used as a garden light or the like as well as a common lighting electric lamp. In the electric lamp device comprising an envelope and a small-sized light-emitting element assembly, an open end of a globe is coupled to a globe connection opening of a base body to constitute the envelope, and the small-sized light-emitting element assembly, such as a set of baseless small-sized electric lamps connected in series to each other, is housed within this envelope, and additionally, a louver including ring-like louver components is put within the envelope surrounding the small-sized light-emitting element assembly. Further, when needed, an attachment is fixed in the globe connection opening of the base body. The louver is mounted on this attachment. The attachment is composed of a plate section, a light-emitting element mounting section, and a support standing section.

Abstract: A baffle mountable on the tube of a fluorescent lamp which in the absence of the baffle yields a harsh and glaring light. The baffle is formed of a long strip of fabric material having a row of holes therein through which the tube is threaded to cause the strip to assume the shape of an undulating shade which conceals the lamp. The felt strip is preferably constituted by a pressed, non-woven felt fabric whose fibers are reflective of light and absorbent of sound or a similar flexible absorptive material. Light rays emitted by the lamp are intercepted and dispersed by the shade, thereby diffusing the light and softening the illumination. Ambient sounds impinging on the undulating shade are absorbed thereby to reduce the noise in the room in which the lamp is installed.

Abstract: A halogen lamp assembly comprising a housing, a halogen bulb installed in the housing, and a light exit shield removably mounted in the light exit opening of the housing, a support ring with a radially inward-projecting ring land, a first ring-shaped groove on inside radial surface of said support ring, a first O-ring mounted in said groove, said ring land being in front of the forward of the first O-ring, a first shield disk resting against the rear surface of the ring land, and a shield grid removably mounted in the support ring.

Abstract: A light trap for a projector, such as an integrated LCD projector, is provided for placement in ventilation channels to prevent escape of light through the channels while allowing free flow of cooling fluid through the channels. The light trap is constructed of material having a honeycomb-like structure, with conduits in the light trap being preferably disposed obliquely between the light source and the duct opening. The light trap may be coated or treated to increase absorption of visible and infrared radiation. A light trap according to this invention not only prevents escape of extraneous light from the projector's ventilation openings, but it assists in controlling the heat load generated by the light source, and it provides less resistance to air flow than does a louvered panel that is typically used to cover a ventilation opening in a projector thus reducing the amount of noise associated with the ventilation system.

Abstract: An apparatus for providing uniform light intensity is disclosed. The apparatus consists of a number of wires arranged diagonally and horizontally on a frame. The horizontal wires are arranged with variable vertical spacing to create eight different zones of light attenuation transmission. The apparatus is designed such that the zones having the highest light attenuation are placed in front of the most intense light from a source and the zones having the lowest light attenuation are placed in front of the least intense light from the source. By matching the zones of the apparatus to the intensity pattern of the light source a uniform light source is created.

Abstract: A lamp shade includes a pair of brackets each having a number of orifices, and a number of rods having two ends engaged with the orifices of the brackets for allowing the rods to be secured between the brackets. The orifices are intersected with each other for forming a slot and for engaging with the ends of one or more plates. The brackets each includes a number of cavities communicating with the orifices and each having a square cross section for engaging with the ends of a number of beams and for allowing the beams to be secured between the brackets.

Abstract: A beacon light assembly shield for shield from ground level the light emitted by tower mounted beacon lights for aircraft, the assembly comprising a plurality of spaced concentric frustraconically shaped elements having a centrally located aperture, the element being interconnected, and each element being spaced from an adjacent element such that a distance between a first horizontal plane coincidental with an inner peripheral edge and a second horizontal plane coincidental with an outer peripheral edge is no greater than 75% of a distance between first horizontal planes of adjacent elements. The assembly effectively eliminates light pollution from ground level while permitting visual access for aircraft.

Abstract: A one-piece attachment for a general-diffuse miniature reflector has either the lamellae resting upon the rim of the reflector and engaging behind it with formations on the lamellae, or a support ring with handle like elements engaging the rim form behind, the lamellae or blades being connected by trips with the ring so that the lamellae are all integral and in one piece with one another.

Abstract: A light fixture is disclosed including a receptacle for receiving a light source and a support for the receptacle. At least one baffle supported adjacent the light source inhibits passage of light from the light source past the at least one baffle. An enclosure surrounds the light sources and engages the support in such a way that airflow from outside the enclosure to the light source is substantially prevented. A display case is also disclosed having a product support within a frame for supporting the product to be displayed within the display case and a light fixture for receiving and supporting a light source. At least one baffle element is positioned adjacent to light fixture and between the fixture and the product support for reducing the amount of light from the light source that passes from the light source outside of the display case.

Abstract: An improved light trap and louver mounting assembly particularly intended to be used as a component of a fluorescent troffer lighting fixture, the invention comprises a light trap structure formed with integral fastening elements which attach component parts of the light trap together, which attach the light trap to the louver and which releasably mount the light trap and louver mounting assembly to a housing assembly of the lighting fixture. The integral fastening elements of the invention act to provide the aforesaid functions without the use of separate fastening elements such as screws, hinges, latches and the like. The light trap and louver mounting assembly of the invention is structurally rigid and imparts desirable rigidity to the louver and to the lighting fixture.

Abstract: A luminaire has a housing with a light emission window (2), a tubular lamp supported in the housing facing the window (2) and having a center line extending in a plane P perpendicular to the window (2), side reflectors (5), and three-dimensional lamellae (10) which each have an outer edge (11) and a pair of inner edges (12). The outer edge of each lamellae is concave in a direction transverse to the window. The luminaire thus provides an optimized cut-off angle, screening light which would otherwise be dazzling but permitting non-dazzling light to pass. Each of the lamellae has a concave curvature in a direction parallel to the plane P but which flattens out going from plane P towards the side-reflectors (5). That enlarges the aperture through which light emanates and makes the illumination provided by the luminaire more uniform.

Abstract: The invention relates to a display panel presenting a matrix array constituted by a plurality of light emitting elements. A mask composed of a vertical wall presents a plurality of openings opposite the light emitting elements and a plurality of fins directed towards the display surface and at a distance therefrom. The mask intercepts virtually all the sun's radiation and avoids heating of the display surface due to such radiation.

Abstract: A lamp for elongate lighting means in which the respective lighting means is arranged in the inner space of a flat, trough-like housing and an anti-dazzle unit is associated with the lighting means which consists of several mutually spaced apart grid surfaces of light permeable material which are likewise largely located in the inner space of the trough-like housing.

Abstract: An electric lighting fixture for mounting relative to a ceiling is disclosed. An enhanced light deflecting louver system is also disclosed in which the louvers provide enhanced light deflection.

Abstract: A displaying apparatus includes a display screen, and a light-shielding grating member having a plurality of light-shielding plates which are assembled in a matrix form in vertical and horizontal directions, the light-shielding grating member being disposed in front of the display screen. In the displaying apparatus, the respective light-shielding plates in the vertical and horizontal directions are inclined in directions to pass a predetermined visual point range when the respective light-shielding plates are virtually extended frontward, or the light-shielding grating member is inclined frontward and backward with respect to the display screen within a predetermined angle range. According to such a structure, external light obliquely injected into the display screen from the left, right, upper and lower sides can be shielded so as to improve a display contrast and visibility to prevent difficulties in seeing the image.

Abstract: A fluorescent luminaire, of the suspended overhead type, is constructed with the lamps of the "U" type having both electrical connections at the same end so that the lamp forms a cantilever suspension from a central housing. The ballast means is formed perpendicular to the lamps and placed in the central housing to concentrate the weight there and separate the heat-generated there from that generated by the lamps. Translucent/reflector sections and baffle means extending from the central housing are made of a lightweight plastic material. To assist in starting the lamps and for support, a metallic reflector or support extends adjacent to and parallel to the lamps and is grounded at or within the central housing. The reflector/translucent means and lamps are arranged so as to eliminate bright and/or dark spots.

Abstract: A lamp shade mounted on a lamp and rotatable thereon. A shade having a conical shape is supported on the lamp on a support member. The shade and the support member have cooperative bearing members to facilitate the free rotation of the shade. Slits are provided in the lamp shade surface that permit the projection of a portion of the lamp shade material from the defined conical surface of the shade to define unidirectional vanes. Air warmed by the bulb of the lamp when lit rises within the conical shape of the shade and exits through the slits and imparts a force on the vanes to cause the lamp shade to rotate. The support member for the shade is removably mounted to the lamp to facilitate transferring the support member and thus the shade from lamp to lamp. One support member is arranged to be removably clamped to the socket of the lamp and an alternative support is removably mounted to the bulb installed in the lamp.

Abstract: A luminaire with modular louver shields is disclosed that is particularly suited for use in the interior of parking garage structures. The luminaire is constructed so as to address the three-dimensional lighting requirements in parking garages, providing adequate illumination while reducing the glare in drivers and pedestrians eyes and reducing the amount of light that spills out of the structure. This is accomplished by using a lens that disperses light in the appropriate manner and removable louver assemblies that block or diffuse light rays that would otherwise shine in drivers and pedestrians eyes or spill out into the adjacent neighborhood. The lens and modular louver assemblies can be utilized in a number of configurations depending on the layout of the structure and the objective being addressed (eg: glare control, light spill). Once the luminaires are installed, the louvers can be rearranged to accommodate changing lighting requirements.

Abstract: The indoor/outdoor lantern comprises a lamp base mounting a lamp socket, electric wire conductors extending from the lamp socket for connection to a source of electrical current, a lamp enclosure including an ornamental grillwork or grating surrounding the lamp and extending between an upper end thereof and a lower end thereof which forms a support for the lantern, a cover for the lantern, the lamp base being mounted inside the lantern cover whereby said lamp socket depends from the cover. The grillwork or grating has a pleasing ornamental appearance which cast pretty shadows. For example the grillwork or grating can include an ornamental outline of vegetation, and more specifically of vines or branches having leaves or flowers.

Abstract: The present invention relates to improved light devices, such as illumination or signal devices used on vehicles for managing the light reflections from reflective surfaces of such devices. In one exemplary embodiment thereof, a light device includes an array of tubular elements partially embedded in a reflective surface, such as a surface of a lens of said device, which lens focuses, directs or disperses light from the device. The use of such an embedded array of tubular elements causes the light source to appear as a substantially opaque surface when the light device is not operative and permits an effective amount of light to be projected from the light device when the device is operative.

Abstract: A lighting assembly has a grid (5) arranged to be adjustable at a light outlet of a housing (1). In one embodiment, there is a plurality of grids (4, 5, 6), preferably arranged one behind the other in a direction of light rays, which are movable relative to one another. When the position of a grid (5) of such a lamp assembly is adjusted, a light emission angle of the lighting assembly is adjusted. When, in a preferred embodiment, slats of the grids are arranged in true alignment to one another, a light emission angle is relatively small. By adjusting the grids, for example by one half step adjustments relative to one another, the light emissions angle is enlarged accordingly. Thus, a directional effect can be achieved without a focussing effect, even with the use of fluorescent tubes.

Abstract: The invention relates to a flash device, preferably for transferring a dye matrix which by means of a high-energy light flash is transferred from a radiation-absorbing carrier film by interleaving a mask onto a receiver element. This requires substantially perpendicular irradiation of the transfer plane with a high-energy radiation and a high uniformity of irradiance distribution of the light flash. To achieve this, one or two linearly extending plasma discharge tubes are provided which to concentrate radiation are enclosed by two separate aspheric-cylindrical reflectors, the concentrated radiation being directed through a lamellar louver element arranged downstream of the reflector and impinging on the predetermined transfer plane in a substantially parallel and perpendicular manner.

Abstract: A device for directing a beam of light from a light source to a predetermined view range. The device is particularly suitable for installation inside the visor of a traffic signal, although other applications will be apparent. Two or more baffles are selectively positioned within a hollow housing. The baffles are uniformly formed and each has a plurality of apertures. The baffles are thin plates and are aligned so that each set of corresponding apertures creates a tunnel for a portion of a beam of light from the light source. Due to the thinness of the baffles, the "tunnels" have no walls and no substantial surface area to deflect light rays outside the selected view range. This provides a sharp on-off effect at the periphery of the view range. Yet, a "full ball" effect is provided within the view range.