Abstract: A luminaire includes at least two lamps and a main reflector whose outer edge defines a light emission window. A counter reflector is provided opposite the main reflector. Light originating from the lamps can only leave the luminaire through the light emission window after passing through a diffuser and/or a mixer which are positioned in a counter light emission window of the counter reflector and on an edge of the counter reflector, respectively. Homogeneously mixed light can thus be obtained from the luminaire when two lamps of different color temperatures are used.

Abstract: An illumination unit has a light source, in particular a high-intensity discharge lamp or an ultra high performance lamp, a main reflector and a back reflector with an aperture opposite the main reflector. Light is reflected from the light source through the aperture onto the main reflector. The centers of the light source and the back reflector are located or shaped relative to each other such that a first sector angle (L2–L2?) enclosed between the light source center and the edge of the back reflector aperture is smaller than 180°. The efficiency of light emission is considerably increased. Preferred embodiments, each of which can cause a further increase in light output, relate to various shapes of the back reflector and the inner walls of the gas discharge space, as well as to the shape of the part of the glass bulb that surrounds the gas discharge space.

Abstract: Light emitted from the light source, which is disposed above an optical axis extending in front and rear direction of a vehicle lighting device, is reflected toward front of the vehicle lighting device by a reflector made of a transmissive member. An exterior surface of the reflector is formed with a plurality of protruding portions extending in a radial pattern with respect to the optical axis. Each of the protruding portions has a total reflection prism having a cross sectional shape perpendicular to the optical axis, which is approximately a V shape. The reflector is divided into twelve fan-shaped reflective regions, each having three protruding portions. The fan-shaped reflective regions, which are located in the left and right directions of the optical axis, reflect the light emitted from the light source in the direction more deviating from a direction along the optical axis than the fan-shaped reflective regions, which are located at the upper and lower directions of the optical axis.

Abstract: A luminaire with reflector of negative focal length is disclosed, which comprises a light source and a luminaire screen having a reflector of negative focal length, a side screen and a plate; wherein the reflector of negative focal length is capable of reflecting the upward-incident rays emitted from the light source; and the side screen is capable of reflecting the sideward-incident rays emitted from the light source and the reflected rays of the reflector; and the plate being disposed at the lower portion of the luminaire screen beneath the light source has a plurality of micro-structures arranged thereon and is capable of accepting the rays of the downward incident area along with both the reflected rays of the reflector and the side screen so as to diffuse the same for discharging.

Abstract: A multiple output illumination system includes a first and second reflectors each having an optical axis and a first and second focal points substantially on the optical axis. In one embodiment, one of the focal points of each reflector are proximate to one another, while the other focal point of each reflector is distal from each other. In another embodiment, the first and second reflectors are pairs of reflectors, and the second reflector of each points away from the optical axes of the first and second reflectors. An intermediate reflector may redirect radiation from the second reflectors. A source of electromagnetic radiation substantially proximate to the focal points that are proximate to one another produces rays of radiation that are reflected by the each reflector in different directions, converging substantially at each of the distal focal points. Light pipes placed substantially proximate to the distal focal points may collect the radiation.

Abstract: A reflecting surface design system (50) has (1) first rendering means (54) for displaying a free-form surface (20) on which a plurality of segments (24), each of which is defined by a plurality of vertices (251 to 254), are formed, (2) reflection information specifying means (56) for specifying the vertex position and light reflecting direction for each of the plurality of vertices (251 to 254) that define one of the plurality of segments (24), and (3) surface calculation means (58) for calculating a surface (S) to be assigned to the one segment (24) on the basis of the vertex positions and light reflecting directions specified for the plurality of vertices (251 to 254) that define one segment (24), and the light source position, which is specified in advance.

Abstract: Disclosed is a reflector for a lighting assembly comprised of a series of discrete facets connected to form an optical reflector. Each facet includes subdivisions that extend uninterrupted along substantially the length of the facet and serve to multiply the image of the light source for increased illumination. Further, the curvature of the facets are selected to maximize the length of the reflected image of the light source to further enhance optical output.

Abstract: The present invention may comprise a reflector for a luminaire comprising: a first reflector means; a second reflector means structured as a ballast reflector; a third reflector means; and a fourth reflector means located and structured to reflect light reflected from the first reflector segment; wherein the reflectors precisely direct light into a desired candela distribution for illuminating surfaces evenly at desired angles.

Abstract: The present invention is a combination structure for a hollow integration rod, wherein each reflective plate of the hollow integration rod has at least one convexity and at least one concavity. As the hollow integration rod is assembled, each two adjacent reflective plates are wedged by the corresponding convexity and concavity. At last, the structure of the hollow integration rod is fixed by a fixing component.

Abstract: A vehicle illumination lamp having a light-emitting element including an optical axis, a first reflection surface, a second reflection surface, and a third reflection surface. The third reflecting surface is formed on a plane intersecting the optical axis in such a manner as to include a first focal point and a second focal point of the first reflecting surface.

Abstract: An illumination apparatus is provided that has sufficiently high efficiency irrespective of a size of a light source. The illumination apparatus projecting light forward includes an LED chip, a small-diameter reflecting mirror positioned in front of the LED chip for receiving light from the LED chip to project the light forward, and a reflecting mirror enclosing the LED chip and the small-diameter reflecting mirror for directing and reflecting forward the light from the LED chip.

Abstract: A method, for implementing lighting by utilizing a lighting fixture having a plurality of laterally-spaced light source locations and corresponding lateral reflector positions, may include selectively installing a reflector of a first type or a second type in respective ones of the plurality of lateral reflector positions, the first type reflector having greater uplighting capacity compared to the second type reflector, whereby the selectively installing determines a proportion of uplight versus downlight. For a plurality of tube positions disposed in a plane, a method may include vertically positioning a reflector assembly with respect to the plane. Individual reflector panels may be replaced by flexing the panel. A method may include providing a sensor switch operative to detect an occupant and connect an electrical path when the occupant is detected, and providing a selector for selecting ones of the ballasts to be connected to the electrical path by the sensor switch.

Abstract: A frontal surface of a light transmitting member disposed in such a manner as to cover a light emitting element from a front side thereof is made up of an ellipsoid of revolution which adopts an optical axis as a center axis thereof and a point on the optical axis which is near the light emitting element as a rear primary focal point thereof. A central region of the light transmitting member positioned near the optical axis is made as a light emitting surface which causes light from the light emitting element to be emitted forward. A circumferential edge region of the light transmitting member positioned outer circumferentially of the central region is made as a light reflecting surface which internally reflects light from the light emitting element so as to be directed towards a secondary focal point of the ellipsoid of revolution.

Abstract: A compact light-beam homogenizer is realized by multiple reflections within internally-reflecting optical channels which are arranged in a folded configuration. The optical channels may be hollow with mirrored walls, or made of a solid transparent optical material. Light enters through an apertured mirror whose internally reflective surface sends back-reflected rays forward for recycling. Multiple entry ports may be provided for combining several beams or for reducing the intensity in the channels. The homogenizer may be used in reverse as a beam divider. Different shapes of the optical channels are provided for obtaining an effective emission surface of different shapes. Due to reflections from surfaces that are parallel to the optical axis, the numerical aperture of the input beams is preserved.

Abstract: An LED headlamp array having discrete LED light source modules, where each light source module has an LED light source, optics dedicated to each LED light source, and a faceted reflector.

Abstract: A light fixture is shown and described is for illuminating building surfaces or portions thereof, comprising a generally cup-shaped arcuate reflector (10) having an interior (21) provided with a lamp emitting light at least partially reflected or dispersed by an inner surface (27) of the reflector to the building surface or portion to be illuminated, the inner surface of the reflector being subdivided into a plurality of structured segments (15a, 15b, 15c, 15d, 32, 38). The novelty is that the segments each have a surface (31a, 31b, 31c, 36, 37, 40) that is curved toward the interior.

Abstract: A light source bulb is fixedly inserted into a lateral direction to the optical axis Ax at a position below an optical axis Ax. Accordingly, a region lateral to the optical axis Ax on a reflection surface of the reflector can be effectively utilized for light distribution control. Furthermore, a first additional reflector having a reflection surface of substantially-spheroidal shape whose first focal point is at a position coincident with the light source is disposed at a position above the optical axis Ax. A second additional reflector 36 having a reflection surface of a substantially-parabolic vertical cross-sectional profile whose focal point is coincident with a second focal point of the first additional reflector is disposed at a position below the optical axis. As a result, light from the light source is illuminated forward without passing through a projection lens.

Abstract: A lamp assembly for providing ambient light display includes an intermediate hollow cylinder. A front hollow cylinder is removably attached and extends from one end of the intermediate cylinder. A rear hollow cylinder is integrally joined to and extends from an opposite end of the intermediate cylinder. The rear cylinder supports a light fixture connected to a source of electrical power from an inner wall thereof. The light fixture receives a light bulb which projects into an interior of the intermediate cylinder. The front cylinder is attached to the intermediate cylinder to define a first circular gap between the front cylinder and the intermediate cylinder. The rear cylinder is joined to the intermediate cylinder to create a second circular gap between the rear cylinder and the intermediate cylinder such that when the light bulb is energized, ambient light is emitted directly through the front cylinder, the rear cylinder, and the first and second circular gaps.

Abstract: An illumination apparatus illuminating an objective illumination region comprises a plurality of illuminants having light-emitting surfaces radiating diffused light, an illuminant substrate in which the illuminants are disposed so as to be set in array on the circumference, at least one optical member configured to guide the diffused light to the objective illumination region, a movable section configured to drive the optical member so as to be rotatable around the center of the circumference serving as a rotation center, and a lighting control section configured to control a light-emitting timing of the plurality of illuminants. The movable section and the lighting control section operate together such that the quantity of light per unit time of the diffused light guided to the objective illumination region is within a predetermined range.

Abstract: A vehicular illumination lamp, including four light emitting devices 12 which are disposed in such a manner as to spread about a predetermined point A as a center, a reflector 14 having four reflecting surfaces 14a that are made up of ellipsoids of revolution Er1, which take light emitting centers of the respective light emitting devices 12 and the predetermined point A as primary focal points and secondary focal points thereof, respectively, and a light distribution control member 16, which controls the light distribution of light from the respective light emitting devices 12 that is reflected on the reflector 14 so as to cause the light so controlled to traverse to a front of the lamp, whereby light emitted from the respective light emitting devices 12 is made first to be reflected on the respective reflecting surfaces 14a and is then caused to converge on the predetermined point A.

Abstract: The lighting device comprises a light source and an associated hollow reflector of transparent material having an internal surface and an external surface which are close to and far away from the source respectively. The inner surface of the reflector has in cross section at least one transverse plane passing through the source a discontinuous profile forming a plurality of adjacent steps each of which has a first face through which rays originating from the source can pass and a second face essentially parallel to the rays originating from the source. The outer surface of the reflector has a profile comprising one or more arcs of curves.

Abstract: A vehicle light includes a light source, a main-reflector, and a sub-reflector. The sub-reflector is arranged around the light source. The main-reflector is arranged around the light source and the sub-reflector. The main-reflector includes a reflection surface that reflects light from the light source in a predetermined direction, avoiding the sub-reflector.

Abstract: At an upper position of an optical axis Ax between a reflector and projection lens, a pair of left and right first additional reflectors are arranged and a pair of second additional reflectors are arranged on both the left and right sides of the pair of first additional reflectors. Each one of the first additional reflectors reflects light from the light source toward one of the second additional reflectors located on a side opposite to the one of the first additional reflector with respect to the optical axis. Each one of the second additional reflectors reflects, in a forward direction, the light reflected from the first additional reflectors without being transmitted through the projection lens.

Abstract: A projection system and a light tunnel applied in the projection system. The light tunnel comprises a first reflector, a second reflector, a third reflector, a fourth reflector, a light entrance, and a light exit. A distance between the third and fourth reflectors gradually changes from the light entrance to the light exit. The distance between the third and fourth reflectors at the light entrance and the light exit is less than length of each of the first and second reflectors. Thus, the light tunnel can be easily held and applied to various projection systems using various light sources and image generation devices.

Abstract: An LED (light emitting diode) illumination device that can generate a non-circular light output illumination intensity pattern. The illumination source including a reflector with a conic or conic-like shape. Further, an LED is positioned at approximately 90° with respect to a central axis of the reflector.

Abstract: A reflector device for a luminaire, said reflector device comprising a pair of resilient sheets positioned one to either side of a spine in the manner of the pages of a book, said sheets when in an unbiased condition lying substantially in two planes intersecting at an obtuse angle and when flexed and retained against the bias of their normal resilience having a doubly arched configuration which forms a reflective surface.

Abstract: A luminaire optical system (10) for an indirect light source including a tubular lamp (12) having a longitudinal axis (22), a first reflector assembly (14) extending parallel to and radially spaced directly above said lamp and a second reflector assembly (16) parallel to and radially spaced from said lamp directly below the lamp. Each of the assemblies includes symmetrical reflectors (22; 24; 30; 32) joining in an apex (26; 34) directly below and above the lamp. The bottom reflector (16) further may include two segments (30a; 30b; 32a; 32b) on each reflecting surface, the segments marking a sharp change in reflecting angle. Most such luminaires will typically also include perforations to maintain useful light profiles. The luminaire according to the present configuration increases the lighting efficiency by minimising any reflections passing back into the tube and ensuring an even spread of light throughout an area being illuminated.

Abstract: An illumination system is provided with at least a first reflecting device that has a first focal point at the arc of an arc lamp. The second focal point of the reflecting device is located at the input end of a compound parabolic concentrator (CPC). The CPC is optically coupled with an optical integrator. Light exiting the optical integrator may be used in low étendue projection systems.

Abstract: A luminaire for providing increased illumination and efficiency comprising a plurality of reflectors, lamps and electrically connected lamp sockets arranged such that the light reflected off of a reflector is reflected at a generally uniform angle and does not reflect off of any other reflector or lamp surface. The luminaire results in an increased light distribution pattern and greater operational efficiency.

Abstract: A light source device includes a light-emitting tube and a reflector. The light-emitting tube has a light-emitting portion that generates a light beam by an electric discharge between electrodes, and sealing portions provided on both sides of the light-emitting portion. The light-emitting tube has a sub-reflection mirror that covers substantially a front half of the light-emitting portion. The reflector has a neck portion provided with an insertion hole to which the light-emitting tube is inserted, and a reflecting portion integrally formed with the neck portion and having an ellipsoidal curved reflecting surface that irradiates the light beam emitted by the light-emitting portion to align the light beam in a predetermined direction. The opening diameter of the insertion hole on the side of the reflecting surface is greater than the external diameter of the sub-reflection mirror and within the internal diameter of a valid reflection area of the reflector.

Abstract: A lamp assembly 10 has a light source 12 having two sealed electrodes 14, 16, sealed in a seal area 17 and defining a lamp axis 18. A concave shell 20 has an internal surface 22 with a reflective surface 23 formed thereon. The concave shell 20 has a neck 24 defining a neck cavity 26 and a reflector axis 28. The neck 24 is provided with an electrical connection 30 and a mechanical support for the light source 12. The shell 20 surrounds the source 12 to reflect light from the source 12 to a field to be illuminated during lamp operation. The source 12 and the reflector surface 23 are oriented with the lamp axis 18 substantially co-axial with the reflector axis 28, and at least a portion of at least one of the electrodes, for example, 14, extends into the neck cavity 26. A zone 32 is formed in the neck cavity 26 for substantially redirecting specular reflection away from the seal area.

Abstract: A reflector for a fluorescent lamp formed in an integral molded unit is presented. The reflector has arcuate side portions which present a receptacle area for receiving a fluorescent light tube. The side portions are joined together by a plurality of u-shaped cross braces which extend between the side portions at spaced locations along their length. Each of the cross braces is formed by two intersecting planar surfaces which extend at acute angles relative to a common plane a the point of intersection. The result is less light loss through diffusion, improved reflectivity.

Abstract: Headlight for a motor vehicle comprising a reflector and a light source (S) running transversely to the optical axis (Y—Y) of the reflector and placed near the focal point of the reflector. The transverse light source (S) is placed near the internal focal point (Fi) of an ellipsoidal reflector (R1). The wall of the ellipsoidal reflector has a cutout (1) situated on one side of the plane passing through the geometric axis of the light source (S) and parallel to the optical axis (Y—Y) of the ellipsoidal reflector. A lens (2) with an optical axis parallel to or coincident with that of the ellipsoidal reflector (R1) is placed in front of this reflector, the focal point (3) of the lens being close to the external focal point (Fe) of the ellipsoidal reflector.

Abstract: A pair of additional reflectors are disposed face to face under a light source. The reflective surfaces of the respective additional reflectors are formed of paraboloids of revolution, with the first focal point of the reflective surface of a reflector as a focal point, and with an optical axis as the central axis of the revolution. As a result, retroreflective light from both reflectors is incident on the upper reflective region of the reflector. Thus, the spreading of the retroreflective light can be reduced based on the enhanced efficiency of utilizing the luminous flux of the light source, to the extent of the presence of the retroreflective light, as compared with the related art structure, wherein a spherical reflective surface centering on the light source is provided.

Abstract: A lamp assembly includes a thermally conductive post aligned in an axial direction, a light emitting diode (LED) at an axial end of the post, a first arched reflector that reflects light from the LED and that has an apex generally aligned along the axial direction and that is removably attached to the post, and a second reflector surrounding the post at a base of the post, where the second reflector reflects in the axial direction light that has been reflected from the first reflector.

Abstract: A lighting assembly includes a quasi-point lamp, a ring lens at least partially surrounding the source to provide a radial beam of light shaped in the form of a disk of sectionally diverging light, and at least one refracting ring to redirect and/or change the beam divergence, and/or at least one reflecting ring to redirect or change the divergence of the beam. A baffle system may be used in conjunction with or in substitution for the refractor or reflector rings to eliminate glare and stray light from the lens or redirect and/or change divergence of the lens. The ring lens surrounding the quasi-point source may be used to divide the illuminating light into radial beams diverging from each other, in which case each radial beam has its own refraction, reflection or baffle assembly. Each radial beam and its attending refraction, reflection and/or baffle assembly is used for specific lighting functions, such as down lighting, ambient lighting, spot or flood lighting and indirect lighting.

Abstract: An automotive tail light. An LED emits its light laterally. A reflection part surrounding the LED picks up the light and reflects it towards the light dish. A low height light is thus provided.

Abstract: A method, apparatus, and system including a reflecting device having a plurality of reflecting zones with associated reflectivities for reflecting light from a flash lamp, are described herein.

Abstract: A luminaire has a plurality of reflecting lamellae between side reflectors. The lamellae each have an outer edge, an inner surface facing away from the outer edge, and a plane of symmetry through the outer edge and the inner surface. The lamellae have a resin body and a recess in the inner surface, in the plane of symmetry. The recess has a bottom surface transverse to the plane of symmetry and substantially parallel walls along said plane. The recess may widen stepwise from the bottom plane towards the inner surface. The lamellae, as compared with metal lamellae, provide a greater freedom to choose their shape and are less expensive. They nevertheless avoid the occurrence of reflections on the side reflectors, which cause unpleasant bright spots within the cut-off angle of the luminaire. A lamellae grid suitable for the luminaire has strips interconnecting, and integral with, the lamellae.

Abstract: The present invention relates to a headlight device comprising in particular a light source, a mirror exhibiting a reflecting surface and a transparent optical deflection element positioned in front of the mirror, the mirror being capable of interacting with the light source in order to generate a beam bounded by a line of interruption, and the deflection element being capable of providing a horizontal displacement of the light without modifying the vertical distribution of the latter, and at least one detachment element arranged on at least one of the surfaces of the mirror or of the optical deflection element reached by the light to obtain a line of interruption of the light beam that is not flat.

Abstract: A projection system including a lighting system, a screen, a color filter separating light emitted from the lighting system according to wavelengths of the light, a first reflecting mirror reflecting the light passing through the color filter to change a path of the light, a display device provided in a predetermined position in the first reflecting mirror, a second reflecting mirror reflecting light reflected from the first reflecting mirror toward the display device, and a projection lens unit enlarging and projecting a color image formed by the display device onto the screen.

Abstract: A light barrier and/or light reflector for PCB-mounted LED's has reflective walls defining interior chambers which redirect the light from the LED's in a substantially orthogonal direction and shield each LED from the light emitted by adjacent LED's. The device is particularly suited for redirecting light from LED's on a PCB to a status indicator panel thereby replacing conventional light pipes.

Abstract: A lamp unit (23) mounted above a front fender (7) for a wheel (6) of a motorcycle includes left and right head lamps (23a, 23b), a single lens member (23d) positioned forwardly of and covering the head lamps (23a, 23b), and a mirror finished body (29) positioned rearwardly of the lens member (23d). The mirror finished body (29) includes a first mirror surface area (29a) aligned with an intermediate portion of the lens member (23d) extending vertically, and left and right second mirror surface areas (29b) continued from the first mirror surface area (29a) extending horizontally along a lower edge of the lens member (23d). The mirror finished body (29) is formed to reflect an image of the fender (7) when viewed either from front or slantwise from front.

Abstract: A fluorescent light fixture includes a housing having an elongated horizontal top surface with side edges and edges at opposite ends of the top surface. Oblique walls extend from the side edges of the top surface, and flare downwardly and outwardly from the side edges. The end walls extend downwardly from the top surface, the oblique and end walls joining to form a downwardly facing opening in the housing. A plurality of generally downwardly facing reflectors within the housing extend the length thereof. Fluorescent light bulbs are mounted parallel to each other in the housing beneath the reflectors, so that light from the light bulbs reaching the reflectors is reflected generally downwardly. The oblique walls and an end reflector are configured to direct a portion of light from one or more light bulbs under each end reflector in a generally upwardly direction to provide indirect lighting.

Abstract: A light source lamp unit (10) includes a light source lamp (11), an ellipsoidal reflector (12) and a plate body (19). The plate body (19) is provided behind the reflector (12) with a gap kept therebetween, which has a shape corresponding to the profile of a reflecting portion (122) of the reflector (12). A cooling channel for passing a cooling air is formed between the plate body (19) and the reflector (12). The width of the cooling channel in a direction along an optical axis of the light source lamp (11) is minimized at a part near a neck portion (121) of the reflecting portion (122) and enlarged toward the peripheral edge of the reflecting portion (122) of the reflector (12).

Abstract: The invention is an apparatus and method for providing substantially uniform high peak irradiation of a three-dimensional object 12) with at least one curved surface (14).

Abstract: A vehicular lamp including a first lamp component having a first light source and a first reflector, and a second lamp component disposed behind the first lamp component and having a second light source and a second reflector, and front sides of the first and second lamp components being covered by an outer lens; and in this vehicular lamp, the first reflector having an overlapping area that covers the front of the second reflector so that the second reflector appears to be segmented in two or more portions; and light transmission holes through which light from the second lamp component passes being formed in the overlapping area of the first reflector.

Abstract: A light source device includes: a light-emitting tube including a light-emitting portion that generates a light beam by an electric discharge between electrodes and sealing portions provided on both sides of the light-emitting portion; a reflector including a neck portion provided with an insertion hole to which the light-emitting tube is inserted, and a reflecting portion integrally formed with the neck portion and having an ellipsoidal curved reflecting surface that irradiates forward the light beam emitted by the light-emitting portion and aligns the light beam in a predetermined direction. The light-emitting tube has a sub-reflection mirror that covers substantially front half of the light-emitting tube. The insertion hole has a diameter that is enlarged from the base end thereof toward the distal end in a light irradiation direction.

Abstract: An adverse weather headlamp assembly that comprises a foreground shield with two sides that taper up from a bottom portion to form a triangular shaped shield. The foreground shield can be movable between a blocking position and a pass-through position. In combination with a cutoff shield, the foreground shield reduces the amount of emitted light that can be reflected off of a wet or icy road in adverse weather conditions in order to reduce glare, while still allowing enough light to be emitted for the driver to adequately see the road.

Abstract: An opposed reflecting mirror is provided so as to face a light source. The opposed reflecting mirror is configured to reflect light rays, emitted from the light source, so as to allow the reflected light rays to advance in a predetermined direction. A light guide body having a plurality of reflecting surfaces is provided to permit the incidence of light rays supplied from the opposed reflecting mirror and to reflect the incident light rays. The plurality of reflecting surfaces are located at different positions in a sliding split manner along the direction of light rays supplied from the opposed reflecting mirror. By virtue of this construction, a light emitting apparatus can be provided in which, while making the best use of a feature of LED, i.e., a small thickness, impressive illumination of an elongated shape by one light emitting device and high external emission efficiency can be realized.