Abstract: A luminaire lens assembly having a top lens including an external reflecting area and a bottom lens with an external refracting area and an internal refracting area, wherein the internal refracting area has at least three concentric prismatic areas, a first concentric prismatic area having a first defined number of prisms, a second concentric prismatic area disposed directly adjacent the first concentric area having a second defined number of prisms at least 1.5 times as great as the first defined number of prisms, and a third concentric prismatic area disposed directly adjacent the second concentric area having a third defined number of prisms at least 1.5 times as great as the second defined number of prisms whereby the first concentric prismatic area further defines a radius, the second concentric prismatic area defines a second radius at least 1.5 times as great as the first concentric prismatic radius, and the third concentric prismatic area defines a third radius at least 1.

Abstract: An infrared light unit for a motor vehicle includes a light source, a reflector having two focal regions and a lens. The light source is in one of the focal regions and produces a pool of reflected light in the other focal region, and the lens converts this pool of light into a beam projected on the road. The light unit includes, between the reflector and the lens, a filter which is opaque to visible light and transparent to infrared light, and which is movable between a position out of the path of light going from the reflector to the lens, and an active position in which all or most of the light going from the reflector to the lens passes through the filter.

Abstract: The present invention relates to a device for illuminating at least one surface, which includes a light source and a reflector in order to focus the light rays emitted by the source. In said device, the focal plane of the reflector lies between the light source and the said surface and it includes, positioned close to the focal plane of the reflector, a means forming a second light source.

Abstract: Lighting optics is provided for lights of vehicles, preferably motor vehicles. The lighting optics has a light-refracting lens element that is disposed in the path of rays of at least one light. The lens element has at least one aperture through which a portion of the rays of the light passes without undergoing refraction.

Abstract: An illumination device or a flash device of a camera includes a light source, a first optical unit and a second optical unit. The first optical unit is arranged to direct light from the light source to an object, and has a lens part disposed a middle portion of the first optical unit and having such an optical power that each of both lens surfaces thereof has a positive refractive power to cause diverging light from the light source to exit in a light-collected state, and reflective surfaces disposed on both sides of the lens part and arranged to reflect light from the light source toward the object. The second optical unit is disposed on a side nearer to the object than the first optical unit and having a plurality of lens parts. An illumination angle is varied by varying a relative interval between the first optical unit and the second optical unit.

Abstract: A headlight for a vehicle operating in accordance with the projection principle has a light source, a reflector which reflects light emitted by the light source as a converging light beam, a screen arranged in a beam path of the light beam reflected by the reflector and screening a part of the light beam, a lens arranged after the screen in a light outlet direction for projecting an upper edge of the screen as a bright-dark limit of a light bundle exiting the headlight, so that a part of the light bundle reflected by the reflector illuminates at least a region arranged at a distance above the bright-dark limit, the screen being provided with at least one opening which is located at a defined region below the upper edge of the screen and formed so that a part of the light beam reflected by the reflector passes through the opening and illuminates at least one region above the bright-dark limit.

Abstract: A light source device includes a lamp for emitting light and a concave mirror for reflecting the light emitted from the lamp. The concave mirror has a reflection surface substantially rotationally symmetric with respect to an optical axis of the concave mirror. A shadow of the lamp is projected in a direction inclined with respect to the optical axis of the concave mirror.

Abstract: A light, wherein the light distribution formation is executed by a first reflection surface made of one of right and left, or upper and lower halves to the optical path of the same direction as the light front direction, a light source disposed near the focus of said first reflection surface and mounted with it's bulb central axis inclined to the first reflection surface side in respect to the light front direction, a second reflection surface made of one of right and left, or upper and lower halves opposed in the closing direction to said first reflection surface in the form of partly open bivalve across this light source and having the focus near said light source, and a third reflection surface disposed outside said first reflection surface and reflecting the light reflected from said second reflection surface to the light front direction.

Abstract: To provide a spot light-source device whose discharge envelope has high pressure resistance and that emits high brightness as a spot light source, a spot light-source device excited by electromagnetic energy has a lamp that with a discharge envelope made of translucent non-conducting material, an expansion part forming a discharge space, and a tube connected thereto, and a discharge concentrator having a front tip part which is supported by the tube without protruding from the discharge envelope and faces the interior of the discharge space of the expansion part, that intensifies concentration of the electric field in the discharge space and that concentrates discharge, an electromagnetic energy provision source that excites discharge in the discharge concentrator from outside of the lamp, a concave reflection mirror that reflects light from the lamp, and a container with a resonance window that creates electromagnetic energy resonance.

Abstract: A luminaire for projecting an image comprises a housing (1) having a light emission window (2). The housing (1) accommodates a light source (3), an optical system (4) for directing light originating from the light source (3) along a longitudinal axis (5), and an image-forming surface (6) which is positioned orthogonally with respect to the longitudinal axis (5). According to the invention, the light source is a LED (3), and the optical system (4) comprises a collimating element (14) for collimating the light originating from the LED (3). Preferably, the luminaire comprises only one LED (3) which, during operation, has a luminous flux of at least 5 lm. Preferably, the housing (1) also comprises a focusing lens (15) for focusing the collimated light originating from the collimating element (14) on the image-forming surface (6) and, preferably, a projection lens (7, 7′) for projecting an image of the image-forming surface (6). Preferably, parts of the collimating element show total internal reflection.

Abstract: A lamp is composed of a light source, a composite reflector consisting of a plurality of reflecting surface units, and aspheric lenses provided to correspond to the individual reflecting surface units. The composite reflector includes a first and a second reflecting surface units. Each of the first reflecting surface units is formed of a reflecting surface configuration obtained by cutting, radially around a center axis of the light source, a portion from a spheroid having a first focal point located on the center axis and adjacent the light source and a second focal point located on a line passing through the first focal point and tilted appropriately from the center axis such that the cut portion spans a range of 15° to 90° around the center axis. Each of the second reflecting surface units is composed of a second reflecting surface configuration obtained by similarly cutting a portion from a spheroid having a second focal point located external to the first reflecting surface configuration.

Abstract: A vehicle lamp having a hollow body lens unit constructed by integrally forming a lamp body and a front lens which constitute a lamp chamber, a light source provided in the body lens unit, and a diffusion step such as a cylindrical step having step elements, each of which has constant directivity, the diffusion step being provided on the outer surface of the lens portion of the body lens unit. The step elements of the diffusion step on the outer surface of the lens portion are lined up in a predetermined direction and each have directivity, so that the mud and dust do not easily stick to each step element.

Abstract: A fiber optic lamp includes a lamp housing having a stem section with a passageway therein and a reflector section having a reflective surface. The lamp housing also has first and second circular ledges for receiving and holding in place at least one lens within the lamp housing. A fiber optic cable is provided having a first end for insertion into the passageway of the lamp housing for transmitting light. The second end of the fiber optic cable is connected to a light pump having a light source therein for generating and transmitting light through the fiber optic cable. The fiber optic cable is connected to a socket member of a fixture housing for mounting the stem section of the lamp housing in the fixture housing.

Abstract: The light emitted by diodes of the Gallium Nitride type which comprises two distinguishable emissions is controlled by a single optical element (10) in the form of a lens having a central part and an annular part with different optical powers. The total output light of the diode may be collimated or brought to a common focus. The single optical element is preferably injection moulded and the annular part takes the form of a diffraction lens. The first part (12) is preferably a refractive lens which has a different optical power to the second part (14)which is preferably a diffractive lens. The optical power of the refractive lens (12) (the first optical power) and the optical power of the diffractive lens (14) (the second optical power) are selected to match the light source that the lens (10) is to be used with.

Abstract: In a light distribution lens for a strobe provided in front of a strobe light emitter to gather strobe light, one of opposed lens surfaces is made of a convex surface, and the other lens surface is made of a convex Fresnel surface. A zoom strobe device is also disclosed, which includes a light emitter unit having a light emitter and a reflector, a light distribution lens provided in front of the light emitter unit to gather light emitted from the light emitter, and a zoom device for varying the distance between the light emitter unit and the light distribution lens.

Abstract: A light fixture having a base for housing a light producing source and a flat plate disposed within the base. The plate has a well formed in it, the well having light reflecting walls. A lamp socket is located in a light reflecting bottom wall of the well. A plurality of light reflecting elements is attached to the plate and a pair of light reflecting assemblies, one on either side of the well, is fixed to the plate. Each light reflecting assembly includes a plurality of light reflecting fins affixed to the plate and projecting at an angle away from the plate. A frame having a convex lens affixed thereto is hingedly attached to the base. A light shield is fixed to the frame for reducing dispersion of unwanted light.

Abstract: An optical illumination system is comprised of: (a) a light source means having a reflective emitting surface and an intrinsic luminance (brightness), (b) a light transmitting means; (c) a light reflecting means to reflect and recycle a portion of the light emitted by the light source means back to the light source means; and (d) a light extracting means to extract a portion of the light from the light transmitting means and direct the light to the output of the illumination system. The resulting illumination system achieves an enhanced output luminance. Under certain conditions, it is possible to achieve an output luminance that is greater than the intrinsic luminance of the bare light source.

Abstract: A lighting module that projects various colors, hues, and intensities of light. The device includes a light source and a reflector to direct the light along an optic path. A primary optical element reduces the cross section of effected light regions as the light enters a filter assembly area in the optic path. Filters in the filter assembly are deployed in varying combinations and to varying degrees to produce the color, hue, and intensity of light desired by the user. The refracting action of the optical element allows the filters to be physically positioned in the optic path but to have no effect on the light until the filters are rotated so that filter segments align with optical segments, and the filter changes the light being projected from the lighting module.

Abstract: A projection-type display apparatus includes a light source, a liquid crystal panel, and a light path changing element arranged between the light source and the liquid crystal panel for changing a light path so that a light beam emitted by the light source and going to the central portion of the liquid crystal panel is bent toward the peripheral portion of the liquid crystal panel. Therefore, a uniform illuminance distribution and a uniform color distribution are ensured.

Abstract: An optical unit is provided for use in a suspended aisle luminaire. The optical unit comprises a plurality of metalized reflecting components which are operative to produce a uniform illuminance level along vertical surfaces of an aisle while minimizing glare toward workers in the aisle. Secondly, the optical unit includes a plurality of non-metalized reflecting components which are operative to illuminate the vertical and horizontal surfaces of the aisle. Additionally, the optical unit may further comprise a plurality of refracting components which are operative to illuminate vertical surfaces near the luminaire and reduce dark spots on the vertical surfaces.

Abstract: A device is provided to diffuse a beam of light, the device consisting of a plurality of truncated cells nested together along their respective sidewalls for collecting and diffusing the light rays as they extend along the plurality of cells having an expansive, tapered interior volume. The device diffuses the main light beam in a headlamp, for example, thereby substantially reducing the glare experienced by oncoming drivers and permitting high beams of the headlamp to be used in the presence of the oncoming drivers. The device of the present invention is retrofitable to existing headlamps. In another embodiment of the present invention, a concave lens is disposed in the headlamp assembly to diffuse the main light beam prior to it entering the truncated cells, while each one of the cells of the dispersion device is also provided with its own respective concave lens to augment the diffusing effect.

Abstract: In a surface light source device of side light type applied to a liquid crystal display or the like, particularly, a surface light source device of side light type with emitting directivity, irregularities in luminance of output light are prevented from occurring in the vicinity of an incidence surface. In a surface light source device of side light type 10, a diffusible area M1 to diffusely reflect illumination light and an absorptive area (on a reflection sheet 11) to restrain the illumination light from reflection from bands in the vicinity of the incidence surface oppositely with the emitting surface of a light guide plate 12 with emitting directivity. It is thereby possible to reduce irregularities in output light luminance occurring in the vicinity of the incidence surface T. A light reflection member 18 may be arranged so as to extend over an edge EU of the emitting surface of the light guide plate 12, with directivity of illumination light emitted from the the emitting surface being modified.

Abstract: A vehicle lamp includes a lamp chamber formed by covering the front opening of a lamp body with an outer lens in order to mount a reflector carrying a bulb of a vehicle lamp as a primary vehicle lamp in the lamp chamber, and an extension disposed on the periphery of the opening of the reflector mounted in the lamp chamber. The extension is fixed to the lamp body or the outer lens, and the reflector of a vehicle lamp as an auxiliary vehicle lamp and an inner lens for covering the opening of the reflector therewith are fixed to the extension.

Abstract: A vehicle lamp includes an amber light bulb covered with a cup-shaped colorless transparent cap, thus emitting an amber light beam. A colorless, transparent, plain lens is employed. Furthermore, the inner surface of the cylindrical portion of the transparent cap is formed into a plurality of side steps, and the inner surface of the front end portion of the transparent cap is shaped into a Fresnel lens, and the outer surface of the front end portion is shaped into a plurality of fisheye lenses, which makes it more difficult to see the amber light bulb. Therefore, the vehicle lamp appears deep and glittering.

Abstract: An rectangularly shaped illumination area utilizing an LED device having a high utilization efficiency in light flux and having an economical manufacturing cost is attained. Herein a light flux emitted from an LED chip 1 and then reflected by reflective surfaces of a horn 11 toward a lens 12 is concentrated into corner FIGS. 14 located in diagonal directions of the rectangular shape 4 while another light flux emitted from the LED chip 1 and directly incident to the lens 12 is focused by the lens on an area having an elliptic FIG. 13, which is inscribed in the rectangle area 4.

Abstract: There is described a multi-configurational, multi-functional electrical lighting fixture for high-abuse application and structured for surface mounting. The fixture includes a lens of U.V. stabilized, high impact-resistant, injection molded polycarbonate plastics, integrally formed with two selective, separate and distinct, high-performance reflector/refractor surface systems carried by the single lens, as separate zonal areas. The first system generates a long and narrow "throw", and the second system a short and wide "throw". A molded, opaque "eyelid" provides optimum lamp shielding and controls light distribution. The lens surmounts a lens base to which it is secured by means of unique internal, integrally-molded lugs received in cooperating hook-shaped slots. An 0-ring gasket establishes a water-tight seal. Unlocking of the assembly is deterred by means of a single, tamper-resistant screw. The lens base is mounted on a deep casting, with or without an interposed cast aluminum baseplate.

Abstract: In a surface light source device of side light type applied to a liquid crystal display device, etc., more specifically a surface light source device of side light type having a directivity emitting characteristic, a bright-and-dark-band contrast which is generated in a vicinity of an incidence surface is prevented. In a surface light source device of side light type, light diffusible areas composed on main-and-supplementary diffusible areas are formed on a slanted surface and an emitting surface of a light guide plate having a directivity emitting characteristic. A silver sheet is fixed to a projected portion of a prism sheet along an upper edge, and an illumination light which arrives at the upper edge from a fluorescent lamp is blocked so that the strong brightening of the upper edge is prevented. An illumination light form a lower edge is blocked by a reflector or a frame and reflected diffusively. The light diffusible area may be formed on one of the slanted surface and the emitting surface.

Abstract: A vehicle lamp that looks attractive, whether the lamp is on or off, has a transparent cap attached to a reflector having a plurality of reflective surface elements. The transparent cap is attached to the reflector so as to cover the light bulb. A plurality of pillars are provided near the front end portion of the transparent cap for intercepting light emitted from the light bulb. On the front surface of these pillars are formed reflective surfaces. When the lamp is turned off, both the reflective surfaces of the reflector and the pillars glitter. When the lamp is turned on, the spaces between the pillars on the front end portion of the transparent cap shine.

Abstract: A headlight for a vehicle has a reflector, a light source, a collecting lens arranged after the reflector in a light outlet direction so that light emitted by the light source is reflected as a converging light beam and the light beam exiting the headlight has an upper bright-dark limit, the reflector being formed so that images of the light source reflected by the reflector are located in an intermediate image plane which is perpendicular to an optical axis of the reflector in the region of a focal point of the collecting lens facing the reflector and above an imaginary line corresponding to a height and side running of the bright-dark limit.

Abstract: A reflector includes one closed end, one open end and highly reflecting curving walls. The walls are symmetrical about at least one axis of symmetry. The walls include a first segment and other segments. The first segment has a curved shape and is located at the closed end of the reflector. The first of segment directs most of the light rays incident on it across the axis of symmetry at crossover points, prior to the rays striking the associated target surface. Most of the light rays striking the walls of the first segment near the closed end of the reflector are having crossover points near the light source. Most of the light rays striking the walls of the first segment progressively further away from the closed end of the reflector are having crossover points located progressively closer to the associated target surface. The other segments direct nearly all of light rays incident on the walls of the other segments towards a portion of the associated surface.

Abstract: A compact coupling arrangement between a light source and a plurality of light distribution harnesses includes a plurality of reflector members arranged around the light source with respective focal points of the reflector members positioned substantially coincident with the light source, so as to receive light from the source and reflect the light away from the source. Further included is a plurality of light coupling members, each having an inlet and an outlet surface for receiving light originating from the light source and transmitting light, respectively. A plurality of light distribution harnesses is provided for respectively receiving light from the light coupling members. The light coupling members each comprise a lens having a negative curvature in at least one direction generally transverse to a main light transmission axis therethrough, for receiving light at a first angular distribution and transmitting light at a reduced angular distribution.

Abstract: A lamp device for a vehicle is configured by a reflecting mirror, a lens in which lens steps for diffusing light are formed, and a light source positioned between the reflecting mirror and the lens. The reflecting mirror is divided into two portions by the vertical plane including the main optical axis of the reflecting mirror. A reflecting face is formed in the following manner. Reflected light from a portion which is positioned in one side with respect to the vertical plane propagates in a direction which is inclined with respect to the main optical axis and without intersecting the vertical plane including the main optical axis, and is then emitted through the lens steps formed in one portion of the lens.

Abstract: A vehicle headlamp may be formed from a light source; a divergent lens; and a reflector facing in a forward direction to the lens. The reflector has one or more first regions, and one or more second regions. The first region is a section of an ellipsoid of revolution with one focal point coincident with the light source, and one focal point located at the first focal point of the lens. The second regions have a surface with an elliptical vertical cross section having a first focal point coincident with the light source and a second focal point coincident with the first focal point of the lens. The second surface additionally has a horizontal axial cross section having a first focal point coincident with the light source and a second focal point axially offset from the first focal point of the lens. The horizontal axial cross section may be elliptical, parabolic or hyperbolic. Light from the first regions is convenient to form the beam hot spot.

Abstract: A portable general illumination lamp unit having very low power consumption (under 100 mA) and producing a high intensity light. A dual conductor wire protrudes from the lamp housing body to connect to a power source. The lamp housing has a housing body, a flush fitting lid and a downward facing lens. The housing body has an exterior surface suitable for light diffusion. A low power, high intensity light bulb is attached to conductors on the wire using insulated wire straps, and a strain relief member is molded onto the dual conductor wire. The strain relief member is fixed to the lid of the lamp housing and sealed in place with a waterproof epoxy, oriented so that the bulb will be positioned in the center of the housing body. The housing body receives the lid. The opposite end of the wire lead can connect for permanent mounting of the device, or attach to a plug appropriate for the power source desired. Alternatively, the dual conductor wire can connect to a switch and one or more batteries.

Abstract: A projection type display apparatus comprising a light source apparatus which is provided with an elliptic mirror 12, a light source 11 disposed at the first focal point, a cone-like material disposed at the second focal point, a condenser lens 13, display elements 15R-15B, a color separating and synthesizing optical system, second condenser lenses 16R-16B and a projection lens 19. The cone-like material is one selected from the group of a convex cone lens, a concave cone lens 2, a convex cone-like reflector and a concave cone-like reflector 20. In the projection type display element, light emitted from the light source is introduced into the cone-like material and is emitted as divergent light through the conical surface of the cone-like material.

Abstract: In a lighting unit for projecting forward diverging light emitted from a light source, a prism is disposed forward of the center of the light source. The prism has a first light incident surface through which light emanating obliquely forward from the light source enters the prism, a total reflection surface which reflects forward in total reflection light passing through the first light incident surface, a second light incident surface which is a positive refracting surface and through which light emanating mainly forward from the light source enters the prism and a light emanating surface through which light passing through the second light incident surface and light reflected by the total reflection surface emanate from the prism. A reflecting mirror reflects mainly forward light emanating sideways and rearward from the light source.

Abstract: A light source device including a light emitting element emits a luminous flux, which is converged by a reflecting mirror. A conical light-refracting element receives the luminous flux converged by the reflecting mirror and changes the cone angle of the luminous flux. The luminous flux exiting the conical light-refracting element is diffused by a holographic diffuser and is then converged by at least one lens. The reflecting mirror may have an elliptic curvature or a parabolic curvature. The light source device is also used to form a projector for a projection type display apparatus. In the projector, the luminous flux emitted from the light source device may be separated by color separators into a plurality of colors of light. Then, each color of light is directed to the corresponding one of a plurality of light valves. Then, a color synthesizer synthesizes the colors of light emitted from the light valves into a composite image which in turn is projected onto a screen.

Abstract: A lens film provided in front of a light guide plate of a surface illuminant device comprises a base film, and a plurality of triangular parallel prisms formed in a two-dimensional arrangement on one surface of the base film integrally with the latter to form an exit surface. Each prism has a cross section of the shape of a isosceles triangle. The shape of the triangular prisms meets conditions represented by: ##EQU1## 0.5.ltoreq.R.ltoreq.1.0 where .theta.1 is a peak exit angle at which a direction, in which most part of light leaving an exit surface of a light guide plate toward the lens film travels, is inclined to a normal to an entrance surface of the lens film, .theta..sub.2 is an apex angle of the triangular prisms, and n is refractive index of the lens film. The lens film deflects incoming light so that most part of the light leaving the lens film travels in a direction substantially parallel to a normal to its imaginary exit surface, and serves to increase the head-on luminance.

Abstract: An asymmetrical lamp has a main lens (2), a reflector (3) and at least one light source arranged between the reflector (3) and the main lens (2). In order to achieve a uniform illumination of all areas of an object, even when the lamp is not positioned on an axis extending 90.degree. to the object, the light source (1) and the reflector (3) are offset from an optical axis (6) of the main lens (2). The main axes (4, 5) of the light source (1) and the reflector (3) are, further, inclined to the optical axis (6) of the main lens (2). Preferably, the offset of the light source (1) and the reflector (3) relative to the optical axis (6) of the main lens (2), and the inclination of the main axes (4, 5) of the light source (1) and the reflector (3) to the optical axis (6) of the main lens (2), is adjustable so that the lamp can be optimally adjusted. In one embodiment an additional lens (7) is included between the light source and the main lens.

Abstract: A reduced package depth low profile lighting system has a light source emitting light at a solid lens for shaping the light to conform to governmental lighting standards. The solid lens has a first surface comprised of a plurality of conic section cylinders. Each of the cylinders has a length first focal line, a second focal line and a cylinder line. The first focal line is tangent to a package curve preferably defined by a circle preferably in the horizontal plane of the vehicle. The circle has a center and a predetermined radius length. The center is coincidence with the light source. Each of conic cylinders substantially collimates light in the vertical plane while spreading light in the horizontal plane within a predetermined angle from the optical axis.

Abstract: An electric lighting device that uses a concave reflector to collect and concentrate the light emitted by a plurality of luminescent light sources. The cooperating relationship between the orientation of the light sources and contour of the reflector increases the parallelism of the light beams projected from the device so that they can combine to form a composite beam. The spatial relationship between the light sources and the inclusion of a light transmitting medium reduce overheating and increase the efficiency of the device.

Abstract: The lighting system for an automotive vehicle has uses smooth conic section solids to form a beam pattern. In one aspect of the invention the A/C ratio of the conic section solids are varied to collimate the light emitted in the vertical direction and spread light in the horizontal direction. In another aspect of the invention the A/C ratio of a hyperbolic conic section may remain the same while adding fluting to the outer surface of the lens to provide beam redirection.

Abstract: A reflection mirror has reflection steps formed as portions of respective paraboloids of revolution and disposed between adjacent ones of closed curves formed as lines of intersection of a group consisting of the paraboloids of revolution with different focal distances and a fundamental surface for the reflection surface. The fundamental surface for the reflection surface includes a first curved surface portion and a second curved surface portion connected to the first curved surface portion in the n-th order continuity (N.gtoreq.1). The first curved surface portion is shaped such that when a light beam, which is emitted from a point light source supposed to lie on the principal optical axis of the reflection mirror, is reflected at a reflection point on the first curved surface portion, the light beam reflected thereat is directed substantially parallel to the principal optical axis of the reflection mirror.

Abstract: The optical receiving body for at least one LED has an optical member with a receiving chamber for receiving the at least one LED. The LED emits light in a main direction of light emission. The receiving chamber has an inner wall with a parabolic wall section. The parabolic wall section is a first reflective surface for light beams emitted by the at least one LED. The exterior surface of the optical member is provided with at least one second reflective surface.

Abstract: A projector comprising a light source having first and second high-luminance light emitting areas, an illuminating optical system for directing the light, from said light source, toward an object to be illuminated, wherein said first and second high-luminance light-emitting areas are positioned on the optical axis of said illuminating optical system, and a projection optical system for projecting the light emerging from said illuminated object, wherein said illuminating optical system is constructed in such a manner that a central area of said illuminated object is illuminated by most of the light beam from said first high-luminance light-emitting area, and a peripheral area of said illuminated object is illuminated by the remainder of the light beam from said first high-luminance light emitting area and most of the light from said second high-luminance light-emitting area.

Abstract: A wide-ranged hot zone light distribution is obtained by using one hot zone light distribution lens in a simple construction. The hot zone light distribution lens has a first light reflection surface forming roughly a vertical surface and a second light reflection surface adjacent to the first reflection surface forming a line as a border at the top edge of the reflection surface in a projection direction. A hot zone light distribution includes at least a first range formed by a direct light projected from an optical fiber without being reflected on the first and second reflection surfaces, a second range formed by a reflected light projected after being reflected on the first reflection surface, and a third range formed by a reflected light projected after being reflected on the second reflection surface. The first and the second ranges are extended toward right and left directions from a horizontal center in the light distribution. The first range has a top end increasing its height toward an outside.

Abstract: The light fixture comprises a pod suitable for being embedded in the ground, and housing a light source, and a cover provided with at least one opening containing an optical unit facing the light source. The optical unit is sealed relative to the cover by a gasket which fits snugly around the perimeter of a base portion of the optical unit and which is compressed by means of a presser member applied against a bottom surface of the optical unit. The cover provides a housing designed for the gasket and defined by contact surfaces comprising a wall facing the perimeter of the optical unit and a top abutment for the gasket parallel to the mean plane of the cover.

Abstract: Lineal light distribution is provided from a source which may comprise a quasi-point source. The light is directed to one or more arms, each arm comprising conveyance means defining a region of light travel. Collimated light is directed into the conveyance means. Directing means in the light path direct light in respective independent paths to each of a plurality of exit means. The directing means may be discrete or distributed. The exit means each project light away from the conveyance means. The exit means are distributed at a number of locations at differing locations with respect to the source so that a lineal distribution of light from the source is provided.

Abstract: An asymmetrical lamp has a main lens (2), a reflector (3) and at least one light source arranged between the reflector (3) and the main lens (2). In order to achieve a uniform illumination of all areas of an object, even when the lamp is not positioned on an axis extending 90.degree. to the object, the light source (1) and the reflector (3) are offset from an optical axis (6) of the main lens (2). The main axes (4, 5) of the light source (1) and the reflector (3) are, further, inclined to the optical axis (6) of the main lens (2). Preferably, the offset of the light source (1) and the reflector (3) relative to the optical axis (6) of the main lens (2), and the inclination of the main axes (4, 5) of the light source (1) and the reflector (3) to the optical axis (6) of the main lens (2), is adjustable so that the lamp can be optimally adjusted.

Abstract: The invention concerns a lighting system for spotlights, for automobile headlights, for medical and industrial spotlights. It consists of the light source (1), particularly the halogen light bulb, auxiliary mirror (2), the main mirror (3), consisting of a system of concave spherical mirrors (31), and a raster lens (4). All of these elements lie on the main optical axis (0). If a system of condensers (5) and an objective (7) is added to the basic part, the system can be used for cinema projectors and enlarging apparatuses.