Abstract: A light fixture providing normalized output. An undirected light source is located in an optical cavity having an optical window. A film with a smooth surface and a structured surface is placed in the optical window with the smooth surface facing the interior of the optical cavity. The structured surface has a plurality of triangular prisms thereon.

Abstract: A lens (16) suitable for use with traffic lights has a body portion (20) that is a segment of a sphere and a mounting or sealing ring (21) at the periphery of the body portion. An array of lenticular elements (22) is formed on the concave inner surface of the body portion (20) and is arranged in rows extending substantially horizontally across the concave inner surface of the body portion of the lens. Between each adjacent lenticular element there is a recess (25) to modify the reflection pattern of the lens.

Abstract: A lens of a transparent material including a structured surface on one side and a smooth surface on the opposite side. The structured surface includes a plurality of three-faceted prisms arranged side by side to form a plurality of ridges and grooves. Each prism has a reflective surface adjacent to a refractive surface and a riser adjacent to the refractive surface. The surfaces are angled with respect to one another so that incident light is transmitted through the lens, whereby the exiting rays may be predisposed to be perpendicular or non-perpendicular. Because of this the lens can be used to disperse, collimate, gather or concentrate the light. Thus, it may be utilized in a variety of ways, for example, in a light fixture, whereby high-angle incident light directed toward either the structured surface or the smooth surface, is transmitted through the lens and is directed in a desired fashion.

Abstract: A dipped headlight for a motor vehicle, capable of generating a dipped beam situated beneath a generally horizontal cutoff, the headlight being of the type comprising a lamp having an axial filament (100) emitting light freely in all directions thereabout, a reflector (200) having an axis (Ox) extending beneath the axis of the filament and parallel thereto, said reflector also including a surface without discontinuity, and said headlight further including a closure glass placed in front of the reflector and suitable for spreading said beam in a horizontal direction, said headlight including the improvement whereby the reflector includes two diametrically opposite first quadrants (201, 202) whose surfaces are at least approximately two portions of paraboloids having focuses situated in the vicinity of respective axial ends of the filament in order to generate filament images which provide light concentration situated beneath the cutoff and offset sideways relative to the headlight axis, with the other two quad

Abstract: A motor vehicle headlight which includes a reflector, a light source (e.g., tungsten halogen capsule) within the reflector and a lens secured across the reflector's forward opening and including thereon means for substantially preventing glare to an oncoming motorist during headlight operation. This preferred means for preventing glare comprises a quantity of masking material (e.g., an opaque coating containing a black pigment) located on the lower angular surfaces or portions thereof of a preselected number of lensing facets formed within an internal surface of the lens. Light is thus prevented from passing through these masked angular surfaces or portions thereof in a substantially upward direction from the headlight location, which passage could in turn cause said glare. In a specific embodiment, a small size headlight (e.g.

Abstract: A vehicle signal lamp serves to mark the position of the vehicle by emitting light axially relative to the vehicle and also by emitting light sideways relative to the vehicle. Reflector for directing light axially is extended on its inner side by a portion for directing a beam sideways toward the space situated between the free edge of the opposite side of the reflector and the corner region of the closure glass. The refractor elements normally provided on the inside surface of said closure glass are advantageously used to distribute said lateral beam so as to provide the required angular photometry to the side of the vehicle. The invention is particularly applicable to low-profile lamps.

Abstract: A lamp assembly is disclosed as adapted for use as a supplemental high mounted stop lamp for motor vehicles. A lamp body has a paraboloidal reflector for producing parallel rays of light from a source mounted therein. For reducing the axial dimension of the lamp body to a minimum, a generally planar lens is mounted at its open front end, with the lens having a multiplicity of prism elements formed on its outer surface for internally reflecting the parallel rays in a direction at a considerable angle to the axis of the reflector. Additional embodiments are disclosed for imparting both lateral and vertical divergence to the light beam emitted, and for producing two vertically overlapping light beams.

Abstract: A generally transparent globe capable of covering a light fixture and having an opening at one end for introduction of at least part of said light fixture, including a light bulb. The globe includes integral light refracting prisms extending over at least a substantial portion of the inner and outer surfaces of the globe. Preferably to increase the efficiency of the globe, a reflector is integrally formed in the interior of the globe and is positioned above the light bulb. The globe can be formed from upper and lower portions that are permanently adhered together.

Abstract: To lighten an open-space interior, use is made, as a light source, of a catadioptric reflective surface onto which one or more light beams are suitably directed to impinge.

Abstract: A headlight for dim head lamps of motor vehicles includes a paraboloid reflector which has a glowing spiral, and a transparent pane on the inner surface of which seven fields with differently acting optical means are provided. These fields reflect light rays emitted by the glowing spiral and reflected by predetermined zones of the reflector and form a dimming light.

Abstract: A low beam headlamp includes a reflector defining an optical axis and an incandescent filament forming a cylindrical coil whose central axis extends in a horizontal plane through the focal point and forms right angles with the optical axis. The light reflecting surface of the reflector is divided into six zones of which two lateral zones when viewed in the direction of the optical axis form together a paraboloid sector. The upper left hand wall portion and a lower right hand wall portion form together a second paraboloid sector whose central axis is inclined upwards relative to a central axis of the first paraboloid sector. An upper right hand wall portion and a lower left hand wall portion form together a composite paraboloid-ellipsoid sector whose sections taken in parallel vertical planes form parts of parabolas whereas sections taken in parallel horizontal planes form parts of ellipses.

Abstract: A bed reading lamp, particularly for hospital rooms, includes a lamp housing attachable to a wall of a room, the lamp housing including at least one cover which closes a light outlet opening provided in the lower area of the housing and which is translucent and serves to guide the light. The cover includes a lower first portion having an inclined part and a horizontal part and a second portion connected to the first portion. The inclined part and the second portion have prismatic profiles on their sides facing the lamp. The height of the prismatic profiles of the inclined part of the first portion decreases toward the horizontal part of the first portion. The cover provides a light distribution which ensures that neither the person lying in the bed provided with the lamp nor a person in a bed on an opposite wall will be blinded by the light of the lamp.

Abstract: A reflector for obtaining isolux light distribution patterns over polygonal areas is disclosed. The reflector is equipped with a plurality of circumferentially adjacent light transmissive wall sections corresponding in number to the number of corners of the polygonal light pattern. A reflective coating and vertically oriented prisms formed on the outer surface of the wall sections cooperate to reflect and laterally redirect light to provide the desired isolux polygonal light pattern.

Abstract: An antidazzle headlamp has a reflector which is asymmetric relative to a horizontal plane passing through an optical axis of the reflector. The contours of the reflector corresponding to vertical sections in parallel planes forming right angles with a horizontal plane passing through the optical axis, form an upper and a lower half ellipse. Both half ellipses in each vertical section have a common large axis which is staggered upward relative to the horizontal plane. In this manner an antidazzle light beam is created which guarantees an intensive and complete illumination of edges of a roadway even at a close range from the motor vehicle.

Abstract: A non-glare screen is assembled of prismatic rings stacked one on the other and coaxially enclosing a light emitting surface. Each ring has a cross-section of a right triangle. One leg of the triangle is perpendicular to the axis of the light emitting surface and the hypoteruse forms with the one leg an angle between 35.degree. to 45.degree., preferably 40.degree..

Abstract: The luminaire includes a source of light in an opaque housing which extends beneath the source and upwardly about the sides of the source to hide the source from direct view from a horizontal line of sight even with the source. A lens is mounted to the housing above the source and extending around to join with the upper edge of the housing. The lens includes an upper light-dispersing portion which diverges one portion and only displaces another portion of the light from the source to provide an even distribution of luminance to a ceiling above the source. The lens also includes a lateral light-bending portion which receives light from the source and fans it out laterally over the side of the housing to continue the uniform illumination pattern of the ceiling and to illuminate vertical surfaces in the vicinity of the luminaire.

Abstract: A lamp assembly integrally comprising the functions of a fog lamp and a cornering lamp on a motor vehicle. Included are an electric bulb or like light source immovably mounted within a lamp housing, a fixed reflector behind the light source, and a movable reflector between the light source and the fixed reflector. The fixed reflector reflects the light rays from the source in the forward direction of the lamp assembly. Considerably less in size than the fixed reflector, the movable reflector is pivotable between a first position, where it coacts with the fixed reflector to reflect the light rays from the source forwardly as when the lamp assembly is being used as a fog lamp, and a second position where the movable reflector deflects part of the light rays from the source toward one side of the lamp assembly as when the lamp assembly is desired to serve the additional function of a cornering lamp.

Abstract: A method for indirectly illuminating an interior space is disclosed wherein a laterally extended overhead distribution of light is produced from a source of indirect lighting, such as a fluorescent indirect luminaire, by directing a portion of the source light upward to produce a luminance pattern on the ceiling surface directly overhead and then refracting substantially all of another portion of the source light laterally of the indirect luminaire so as to spread the refracted portion away from the directly overhead luminance pattern. Illustrated is a luminaire having trough-shaped lensed for achieving the method of the invention wherein the lateral portions of the lens act to refract the light laterally as above described, and the top lens portion is formed to diverge the light incidence thereon directly overhead in a substantially uniform luminance pattern which is extended by the light refracted through the lateral lens portions.

Abstract: A lamp assembly is disclosed as adapted for use as a supplemental high mounted stop lamp to be installed just interiorly of a steeply slanting rear window of a motor vehicle. A lamp housing has a light source disposed therein, and two generally planar lens members are mounted at the open front end of the lamp housing in parallel spaced relation to each other. The inner lens member is configured to provide a Fresnel lens effective to render the light rays from the source parallel to the principal axis of the lamp assembly, thereby superseding the paraboloidal reflector heretofore employed to the same end. The outer lens member has a plurality of prismatic lens segments for internally reflecting the parallel rays from the inner lens member in a predetermined direction at a considerable angle to the lamp assembly axis. Preferably, the two lens members are further so molded as to impart both lateral and vertical divergence to the light beam emitted by the lamp assembly.

Abstract: The invention relates to a headlamp, the envelope of which is constituted internally by concave reflecting surfaces but at least by one concave reflecting surface having the shape of a paraboloid of rotation, further, in the focus of said paraboloid-shape reflecting surface a light-emitting element is accommodated with its center line being perpendicular to the axis of the reflecting surface, further, having said envelope shut up with a transparent cover plate, the surface of which is uniformly roughened, and/or on said surface uniformly distributed, geometrically regular beam-forming optical elememts are provided. Essential feature of the invention consists of having over the cover plate (1) also irregularly-shaped oblong beam-forming optical elements, the longitudinal axes of which are parallel with the center line (10) of the light-emitting element (2). Said oblong beam-forming optical elements are expediently cylindrical lenses (5, 6, 7, 8) or prisms.

Abstract: A vehicle lamp assembly comprises a light source and a light transmitting member carrying a plurality of strips formed of a light absorbing material. Baffle elements, formed of transparent material and each having an opaque coating on one of its side faces, extend perpendicular to the surface of the light transmitting member towards the light source. Each baffle element is aligned with a respective one of the parallel strips. Lens means are arranged to concentrate light from the light source between adjacent strips and a color filter is located between the light source and the baffle elements.

Abstract: A light-distributing diffuser for an electrical lighting fixture. The diffuser is rectangular in transverse section and is generally in the shape of an inverted truncated pyramid having an enlarged base and a reduced, outwardly-extending end. The outwardly extending end of the truncated pyramid is surmounted by a vaulted, quadri-faceted cap. The walls of the diffuser are formed with an array of fluted, groove-like channels extending longitudinally along the side and including arrays having channels of lesser and of greater radii of transverse curvature, the arrays being disposed symmetrically with respect to a longitudinally extending center line of each side. The cap is formed on each of four side-connected triangular panels thereof with a pair of laterally-adjacent arrays of fluted channels angled to converge and to intersect along a center line of each panel and along abutting side edges of said panels, to direct illumination diagonally and to achieve an essentially rectangular beam light pattern.

Abstract: A method and apparatus for mounting and illuminating a very long liquid crystal display (LCD), having minimal front-to-back thickness and providing very bright, substantially uniform, reliable illumination, is described.

Abstract: A headlamp for an automobile comprising a light source (F.sub.C) a reflector (F) co-operating with this light source in order to reflect in a direction of emission a beam of substantially parallel rays, and a front glass (G) for dispersion and diffusion interposed in the path of the light rays, this glass being inclined with respect to the direction of emission. The glass has on its internal face, correcting optical elements (10) the active surface (11) of each of which is defined by the intersection of a prism inclined by an angle .alpha. with respect to the vertical plane passing through the direction of emission and having an angle .beta. at the apex, and a cylindrical rib having an axis parallel to the prism and a radius r, in such a way that the inclination .alpha. of the prism compensates for the effect of vertical deflection caused by the inclination of the glass.

Abstract: A headlamp emitting dimmed or antidazzle light beam for motor vehicles, includes a paraboloid reflector including a transversely arranged coiled heating filament and a transparent grooved disc for diffusing or refracting light emitted by the reflector. The light means include eight light refracting fields arranged in diametrically opposed parts. Light rays passing through these fields are emitted from predetermined zones on the reflector so as to produce an improved light distribution of the low beam.

Abstract: A panoramic light emitter of an omnidirectional horizontal light beam with very sharp cut-off in the vertical plane is disclosed. The sharp cut-off prevents interference near airports. High average powers are attainable because the light source can be distributed rather than be a point source. The omnidirectional-in-the-horizontal-plane light emitter with a high degree of vertical beam control is achieved by combining a generally cylindrical refractor with an internally emitting open-ended generally conical light source. The internal emitting surface of the conical light source is in the focal plane of the cylindrical refractor. The refractor sharply images the source with its edges, and that image is projected panoramically as the light beam having sharp cut-off at the edges of the image. The external surface of the conical light source does not emit, thus preventing undesired angles of light from passing out through the refractor.

Abstract: Lighting fixture including an enclosure, means disposed in the enclosure for supplying a central source of light therein, a concave, generally parabolic reflector for directing a main beam of light out of the enclosure from the source generally along a given optical axis, the central source of light being located at the focal region of the concave reflector, the concave reflector having a light penetrable region thereof disposed at least at one side of the optical axis in a horizontal plane in common with the central light source, the light-penetrable region forming an escape window out of the enclosure for part of the light from the source.

Abstract: A vehicle lamp assembly, of the type in which the color of the light to be produced by the lamp cannot readily be perceived when the lamp is not illuminated, comprises an outer light transmitting member having horizontal strips of opaque material embedded in its outer surface. A respective horizontal baffle is aligned with each opaque strip. A lens element focuses collimated light on the gaps between the strips and can also serve as a color filter.

Abstract: A vehicle lamp assembly comprises a housing enclosed by a light transmitting cover element and having an inner portion containing a light source and an outer portion containing a lens and a reflector, both of which are arranged to collimate light from the light source parallel to a common optical axis. The reflector is arranged to direct the light collimated thereby past an edge of the lens. The outer portion of the housing is separated from the inner portion by a color filter, the assembly being so constructed as to obstruct passage of light between the cover element and the color filter except via the lens or via the reflector.

Abstract: A luminaire includes a lenticular lens. Each lentical comprises a convex lens having a highly polished aspheric curved surface. The aspheric surface is divided into a plurality of coaxial zones, each designed to accept a specific quantity of parallel light flux from a parabolic reflector positioned within the luminaire and then refract that quantity of flux into a specific solid angle of the projected beam. The convergence of light rays by each lens element produces a real image of the light source in front of the lenticular lens. Each lentical produces a separate image and all images were substantially identical.

Abstract: A combined lighting system for a building interior includes a stack of luminescent solar concentrators (LSC), an optical conduit made of preferably optical fibers for transmitting daylight from the LSC stack, a collimating lens set at an angle, a fixture for receiving the daylight at one end and for distributing the daylight as illumination inside the building, an artificial light source at the other end of the fixture for directing artifical light into the fixture for distribution as illumination inside the building, an automatic dimmer/brightener for the artificial light source, and a daylight sensor positioned near to the LSC stack for controlling the automatic dimmer/brightener in response to the daylight sensed. The system also has a reflector positioned behind the artificial light source and a fan for exhausting heated air out of the fixture during summer and for forcing heated air into the fixture for passage into the building interior during winter.

Abstract: An lighting apparatus including a housing having an opening, a light source received in the housing and a light transmitting-cover fixed at the opening of the housing and through which light rays are projected from the light source. The light transmitting-cover includes a plate made of light transmitting-material and having a first surface and a second surface. Segment lens elements of the same size are arranged on the first and second surface of the plate and formed integrally with the plate. The segment lens elements on the first surface are positioned in face-to-face relation with the segment lens elements arranged on the second surface, thus forming a segment lens. The segment lens elements have a common optical axis and convex surfaces, respectively. The focal lengths defined by these convex surfaces are equal.

Abstract: A replaceable light source assembly is particularly designed for use in a projector housing with sources such as an HMI arc lamp or tungsten halogen lamp where the light source is contained within an envelope. Basically, the light source is closely spaced to a substantially flat mirror which images the light source around the source to produce the effect of a multiplicity of sources. In effect, the light source and its mirror image produces a beam pattern which may be projected towards a suitable projection lens, the light source and mirror are fastened to a heat sink structure to dissipate heat, and the assembly has suitable electrical connections to fit existing housings.

Abstract: A headlamp comprising a reflector of which at least one sector is in the form of a paraboloid of reduction, a bulb with an axial filament offset upwards in the radial direction with respect to the axis of the paraboloid, and a light-distributing glass placed in front of the reflector. The filament is centered in the axial direction on the focus of the paraboloid. The surfaces of the reflector situated outside the sector in the form of a paraboloid are designed so as to produce images of the filament which are all situated below the cut-off. Alternatively, the light-distributing glass participates in the deflection, in combination with the surfaces of the reflector. In an advantageous variant the reflector is completely parabolic and homologous deflecting zones are then provided on the light-distributing glass to lower all the images thus produced below the cut-off.

Abstract: A diffusion cover for a motor vehicle headlamp comprising upper and lower mutually inclined translucent cover portions are integrally joined together to define therebetween a ridge on an outer surface of the cover and a trough on an inner surface of the cover.

Abstract: The light comprises a cluster of lamp unts (100), pivotally mounted at (6,7), on respective chassis (8) running on a loop track. The lamp units are approximately equidistant from a central axis and illuminate a common patch on the axis. Each chassis (8) is connected to a respective chain (35) which may be driven to move individual chassis (8) along the track, changing the configuration of the cluster. A linkage (26,27,31) enables the lamp unit inclination to be varied and a linkage (12,13,14,16,18 ) enables the relative positions of a bulb (1) and a concave reflector (10) to vary, thereby varying the beam width. The rollers (18) of each unit roll on a surface of a first common hoop and the rollers (31) on a surface of a second common hoop. The hoops are movable enabling the inclination of beamwidth of all the lamp units to be varied simultaneously, changing the patch range or size.

Abstract: The optic axis of a vehicle headlight comprises a reflector, an incandescent helix and a convergent lens. The reflection surface of the reflector is parabolic in the horizontal midplane section and is elliptical in vertical median section. A narrow band of light spreading out laterally is thus produced without supplementary optical components, particularly the diffusion disk or dispersion lens. A sharp light-to-dark boundary is obtained by a diaphragm having an effective straight edge 18 located below the outer ellipse focus, which is coincident with that one of the principal foci of the converging lens which is the nearer to the reflector.

Abstract: A device for controlling light images has a light source forming a light spot or light spot group, a reflection device positioned relative to said light source for receiving all of the light rays from the light source and reflecting the light rays, and a light direction changing surface positioned relative to the reflection device for receiving the reflected light rays from the reflection device. The reflection device has a generally planar or curved fresnel mirror type reflecting surface having thereon a plurality of minute prism-shaped elements disposed in minute parallel ridges, or a specially curved surface. The angles of the surfaces of the ridges or the curved surface causes the light to be reflected therefrom in non-parallel directions for spreading the light rays in a uniform light intensity distribution on the light direction changing surface.

Abstract: A spot lamp having a lens in the form of a curved member having an inner surface with a series of radially disposed flutes formed therein defining a fluted portion which surrounds a centrally disposed stippled portion. The flutes each extend linearly from a position adjacent the stippled portion outwardly to a position adjacent the outer edge of the curved member. The surfaces of the flutes are also stippled.

Abstract: A reflector lamp having multiple and aimed parabolic reflective sections so as to improve the desired beam pattern is disclosed. The reflector lamp may be of the parabolic aluminized reflector (PAR) or the reflector (R) type lamps having primary, multiple intermediate and rear sections of a parabolic contour which improves the internal light reflective and absorption characteristics of the reflector lamp. The overall effect is to improve the optical efficacy of the reflector lamp.

Abstract: A flood lamp having a lens with a series of concentrically disposed fluted rings on the internal lens surface in combination with an outer concentric ring adjacent to and wider than any one of the fluted rings and containing a plurality of semi-spherical protrusions disposed in an established pattern (e.g., circular or hexagonal). The flood lamp reflector has multiple reflective surfaces including a front section that is parabolic shape having a principle focal point, a spherical section having its center of radius coincident with the principle focal point of the parabolic front section, and a spherical rear section.

Abstract: A spot lamp having a lens with a series of concentrically disposed fluted rings on the internal lens surface in combination with an outer concentric ring adjacent to and wider than any one of the fluted rings and having a stippled surface. The spot lamp reflector has multiple reflective surfaces including a front section that is parabolic shape having a principle focal point, a spherical section having its center of radius coincident with the principle focal point of the parabolic front section, and a spherical rear section.

Abstract: A new and improved luminaire combination is disclosed having a novel lens structure formed with a generally horizontal first lens surface and a generally vertical second lens surface with a generally horizontal flange formed on the second lens surface. The first lens surface is designed to refract a beam of light downwardly and outwardly in a predetermined pattern to form a beam having a cross section approximating the predetermined pattern at a predetermined distance below the lens. The second lens surface is designed to diffuse a beam of light outwardly in a direction perpendicular to the second lens surface.

Abstract: A reflector for supporting a tungsten-halogen lamp assembly having a light bulb connected to a plurality of terminals. The reflector includes a parabolic section the rear central portion of which is integrally formed with a boss. At least two slots are formed in the boss for receiving the terminals, and each slot is located in a cavity which is adapted to be filled with an adhesive for fixing the terminals to the reflector after the lamp assembly is optically aimed.

Abstract: A single lighting fixture for mounting in front of a large billboard having a horizontal length approximately two times as long as its vertical length is disclosed. The lighting fixture comprises a lamp housing having a lamp positioned therein with the lamp being approximately horizontally positioned in the housing. A new and novel reflector is positioned on one side of the lamp is designed to reflect the light radiating from the lamp in such a manner that the bottom surface of the reflector is utilized to light up the approximate central portion of the billboard while the sides of the reflector are used to light triangular shaped side corners of the billboard. A refractor is positioned on the lamp housing to totally enclose the lamp with the refractor comprising in part three phase light control prism elements for stray light control.

Abstract: The invention provides a lantern for an area light, particularly one having a cut-off light distribution. A central area of a transparent or transluscent bowl of the lantern has in alternation externally facing reflecting prisms and flats. There are sufficient flats to transmit at least one third of the vertical light and sufficient proportion of prisms to provide a completely flashed prism bank at the direction of peak intensity which is preferably 60.degree.-65.degree. from the vertical. The prism bank controls the vertical light, so that the intensity in a vertical 60.degree. cone does not exceed 80% of peak intensity, more efficiently than internal prisms. The flats have the additional advantage of facilitating ease of cleaning.

Abstract: An improved automotive lamp unit is provided having a shape to reduce the air resistance when the automotive vehicle moves. Specifically, the lens member of said automotive lamp construction is aligned in a non-vertical direction when bonded directly to the reflector member so that the lamp unit slips through the air with less resistance than occurs with the conventionally designed unit. The preferred embodiments illustrate various shapes of the lens member to include both rectangular-shaped and circular-shaped lens members having various prism element constructions.

Abstract: A light reflector unit (12) for use with a photographic camera (10) for reflecting light from a light source (13), such as a flash gun, towards the subject to be photographed, the unit (12) comprising a hollow casing (15) having a window (16) for admitting light from the light source (13) into the casing (15), means (28) within the casing 15 for splitting the admitted light and for condensing the split light into separate beams of light, reflective surfaces (26) within the casing (15) for deflecting each beam of light to one of a plurality of windows (18) located such that when the reflector unit (12) is positioned on a camera (10) they face in the same direction as the lens of the lens unit (11) of the camera (10) and are disposed at discrete locations around the lens unit (11).

Abstract: An improved optical system for the light point on an illuminated signal or display device having one or more light points. The system comprises one or more light deflectors optically coupled with the light source of the light point and focussing the light passing through the effective aperture of the deflectors towards a focal point or line, respectively, and one or more light shields arranged in the light path and provided with an aperture in the focal point or line whereas a plurality of the deflectors with the corresponding light shields may be arranged in the rows and columns of a display board. The mantle of the light shield frames a hollow in a manner that its mouth is facing the light deflectors and the mantle is under a bevel narrowing towards the aperture of the light shield and the mantle is arranged parallel to and encircling rays departing from the periphery of the effective aperture of the light deflectors and converging into the focal point or line.

Abstract: A reflector lamp with a shaped reflector and lens. The reflector is generally parabolic, to reflect light frontwardly. Some of the direct light from the light source is not reflected, and diverges in a beam pattern that would be wasted; the lens refracts this divergent light in a more frontwardly and useful direction. For a floodlight, the lens converges the reflected light rays into a crossover pattern to provide a flood beam pattern.