Abstract: A zoomable luminaire has a source of light, a primary reflector with entry and exit apertures, and at least one secondary reflector with entry and exit apertures. The source delivers light into the entry aperture of the primary reflector, and the primary reflector delivers the light at the exit aperture of the primary reflector. The luminaire has a retracted position for producing a beam of a first beam angle, where the primary reflector is nested within the secondary reflector and the secondary reflector does not substantially affect the distribution of the light. The luminaire has at least one extended position for producing a beam of a second width, where the exit aperture of the primary reflector is contiguous with the entry aperture of a secondary reflector so that the light is delivered at the exit aperture of a secondary reflector.

Abstract: A light source apparatus comprising a lamp having a light emitting portion of generating light, a first concave mirror having a first opening provided on a light-using side on which the generated light is used and a second opening provided on an opposite side to the light-using side and having the light emitting portion of the lamp placed inside, and a second concave mirror having a predetermined size to reflect on the light emitting portion side of the lamp the light which comes or should come out of the second opening and placed at a predetermined position in relation to a position at which the second opening is provided, and wherein the size of the second opening is provided so that an amount of the used light becomes substantially maximum.

Abstract: An optical device for effectively adjusting the F-number of an elliptical lamp is provided, the elliptical lamp for producing a focused light beam at a given focal point having a given cone angle. The optical device comprises a light interaction portion for optically interacting with the focused light beam when the light interaction portion is in general longitudinal alignment with a light emitting aperture of the elliptical lamp, the light interaction portion for triggering optical adjustment of a cone angle of at least a high cone angle portion of the focused light beam to a smaller cone angle. The optical device further comprises a light egress portion, coupled to the light interaction portion, for enabling exit of the focused light beam from the optical device with an effective cone angle smaller than the given cone angle, after the cone angle of the at least the high cone angle portion of the focused light beam has been adjusted to the smaller cone angle.

Abstract: A light source unit comprising an arc tube 11 having a light emitting section 111 sealed sections 1121, 1122, an oval reflector 12, and a secondary reflecting mirror 13 for covering the front side of the arc tube 11 and reflecting a luminous flux radiated from the arc tube 11 toward the oval reflector 12, the center of discharging emission from the arc tube 11 is disposed at a first focal position L1 of the oval reflector 12, and the secondary reflecting mirror 13 is configured as a separate member from the arc tube 11, so that the outer peripheral portion of the secondary reflecting mirror 13 is accommodated within a circular cone shown by boundaries L3, L4 connecting a second focal position L2 of the oval reflector 12 and the distal end of the sealed section 1122 of the arc tube 11 when being mounted to the front sealed section 1122 of the arc tube 11.

Abstract: A concave reflector can form a more uniform beam of light. The light source can be an LED with a nominally lambertian radiation pattern. LED can be high power requiring heatsink. Light reflected by reflector and light exiting without hitting reflector can form coinciding beams of essentially same size. Matching of sizes of reflected and unreflected components can be achieved in part by having a tangent at a rim parallel to axis of reflector. For some LEDs hot spot in center of beam is reduced by curvature becoming increasingly sharp when approaching along reflective curve a critical radius at which tangent to reflector curve in plane containing axis of reflector has angle near 45 degrees with respect to axis of reflector. Reflector can be used in, for example, work lights, desk lamps, accent lights, headlamps, and flashlights. Lamps can have multiple reflectors with one LED for each reflector.

Abstract: A luminaire includes a fixture housing, a plurality of LEDs disposed on a mounting surface in the fixture housing, and at least one reflector disposed in the housing. A center of each LED is positioned along a line and each LED faces towards an associated target surface that is vertically spaced from the luminaire. The at least one reflector includes first and second reflective surfaces. Each reflective surface is configured with respect to the line on which the LEDs are positioned so that the first reflective surface and the second reflective surface each reflect light from each of the LEDs in a substantially same direction that is offset from a vertical axis.

Abstract: A light source unit including an arc tube having a light emitting section, sealed sections, an elliptic reflector, and a secondary reflecting mirror to cover the front side of the light emitting section and reflect a luminous flux radiated from the light emitting section toward the elliptic reflector. The center of discharging emission from the arc tube is disposed at a first focal position of the elliptic reflector, and the secondary reflecting mirror is configured as a separate member from the arc tube, so that the outer peripheral portion of the secondary reflecting mirror is accommodated within a circular cone connecting a second focal position of the elliptic reflector and the distal end of the front sealed section of the arc tube when being mounted to the front sealed section of the arc tube.

Abstract: The present invention provides systems and apparatuses for dynamically controlling the operational modes of a single luminaire or a group of networked luminaires configured to deliver an illumination pattern having a decorative colored glow surrounding a central region of substantially uniform brightness. A control module for the luminaire is configured to drive three dimmable fluorescent ballasts, as well as a LED module. A variety of operational modes including different schemes for color mixing and color cycle control can be selected by a user and implemented by a microcontroller. A group of luminaires is connected in a standard communication protocol-based master-slave configuration, where the slave units respond to commands received from the master unit, and the last slave unit automatically engages terminating and biasing resistors for proper operation of the network.

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 light projection device of a stack of at least 2 LED light projection modules. Each module shares a common optical axis and each includes an LED at least partially surrounded by an off-axis collimating optic and each projects a radially collimated canted beam towards and onto. There is a refracting plate for redirecting and changing the angle in respect to the optical axis of at least one of the radially collimated canted beams.

Abstract: Luminaires for illuminating a target zone having target zone subregions in front of and to the sides of the luminaire. The luminaire includes a housing, a lamp holder in the housing positioned to support an electric lamp in a generally vertical orientation, and a compound parabolic reflector in the housing partially surrounding a lamp light-emitting segment location having plural regions. Preferred forms of the compound parabolic reflector include segmented center and side portions. The preferred segmented center portion has a first plurality of two-dimensional parabolic segments each of which has a focal point in a different one of the plural light-emitting segment location regions. The preferred segmented side portions are each provided with a second plurality of two-dimensional parabolic segments having focal points along the light-emitting segment location. The parabolic segments are effective to direct a preponderance of light toward the plural target zone subregions.

Abstract: In one aspect, a lighting system is disclosed that includes an inner reflector extending from a proximal end to a distal end along an axis, where the proximal end is adapted to receive light from a light source and the distal end provides an exit opening (aperture) for the received light. The system can further include an outer reflector that is axially positioned relative to the inner reflector. The outer reflector extends from a proximal end adapted to receive light from the light source to a distal end that provides an exit opening (aperture) for the received light. The inner and outer reflectors are axially movable relative to one another and are configured such that, beginning in a position with the inner reflector nested within the outer reflector, distal movement of the outer reflector (that is, a movement away from the inner reflector) along the axis about which the reflectors are disposed progressively reduces a flood spread produced by the lighting system.

Abstract: Optical apparatus with a discharge lamp and a concave reflecting mirror, the concave reflecting mirror has a front elliptical reflecting mirror portion, a middle spherical reflecting mirror portion, and a rear elliptical reflecting mirror portion; the relationship between an angle ? between a virtual tangential line VTL, which runs from the center position between the electrodes to the outer surface of the electrode positioned towards the neck of the concave reflecting mirror, and the beam axis Z and an angle ? between a virtual straight line VSL, which runs from the center position between the electrodes to the boundary position between the middle spherical reflecting mirror portion and the rear elliptical reflecting mirror portion, and the beam axis Z is ?>?; and the relationship between the volume V of the electrode E1 (mm3) and the wattage (P) meets the condition, 0.07×EXP(0.014×P)<V.

Abstract: A lighting device surface-emits light from a light emitting surface of a light emitting element and guides the emitted light using a light guide member. The lighting device has a first wavelength conversion member for converting light emitted from the light emitting device into light having a first peak wavelength and a second wavelength conversion member for converting light emitted from the light emitting device into light having a wavelength shorter than the first peak wavelength. The first wavelength conversion member is provided between the light emitting element and the light guide member and is contained in a resin potting the light emitting element. A film has a layer containing the second wavelength conversion member. The film is provided on a light emitting surface side of the light guide member.

Abstract: A diffuser incorporates diffuser elements (10) that each include a waveguide (12) coupled between a concentrator (14) and an inverse concentrator (16). The diffuser (44) may be disposed between a backlight (102) and a modulator (114) in a display (100). Luminance ratios of light rays emitted by a low resolution image-forming backlight (102) toward a high resolution light modulator (114) may be preserved such that, for viewing directions within the display's preferred angular viewing range, an observer perceives no significant change in the luminance of displayed images, irrespective of changes in the observer's viewing direction.

Abstract: A PAR lamp (10) has a body (12) with an internal reflector surface (14) disposed about a longitudinal axis (16). A cavity (18) is provided at one end (20) of the body (12) and an arc discharge tube (22) that provides a substantially spherical light source is positioned in the cavity (18) and disposed on the longitudinal axis (16). A cover receiving opening (24) is provided at a second end (26) of the body and a cover (27) closes the cover receiving opening (24). A plurality of spiral facets (28) is formed on the internal reflector surface (14), the plurality of spiral facets (28) being sufficient in number to increase the maximum beam candle power and decrease the beam angle when compared to faceted lamps having a lesser number of facets. The number of facets is equal to or greater than 75 and preferably is 100.

Abstract: A backlight unit includes a case; a first reflector on a surface of the case; a light source disposed on the first reflector; and a second reflector having a first reflective portion and a second reflective portion along first and second sides of the case.

Abstract: An LED unit (10) includes an LED (20) and a lens (30) disposed on the LED. The lens includes a square body (32) and a frustum-shaped body (34) formed downwardly from the square body, wherein a tapered side face (342) of the frustum-shaped body is coated with a reflective film. The LED includes a lens (26) that has a planar top face (28) directly contacting with a planar, circular bottom face (340) of the frustum-shaped body of the lens; thus light emitted from an LED chip (23) in the LED can pass through the lens of the LED and the lens without a total internal reflection occurring at an interface between the lens of the LED and the lens. Accordingly, a high bright light is obtained since nearly all of the light can be transmitted out of the LED unit.

Abstract: An adjustable lamp includes a lamp and a scattering shade which is slidable on the lamp. The scattering shade has a front end coupled with a reflective blade which is bent at a selected angle to reflect light. By sliding the scattering shade on a light penetrative shade, the position of the reflective blade can be changed to alter the reflective direction of the light.

Abstract: The invention provides an illumination system that can include a first reflecting mirror arranged on a rear side of a light-emitting portion of the illumination system including an arc tube, and a second reflecting mirror arranged on the front side of the light-emitting portion of an optical system.

Abstract: A module for projecting a light beam comprises a light source and a substantially flat support surface on which the source is arranged in a manner such as to emit light from only one side of the surface, and a reflector for reflecting the light emitted by the source. The reflector comprises a curved reflecting surface which extends on one side of the support surface, has a concavity facing towards the support surface, and can reflect the light coming from the source in a principal direction substantially parallel to the support surface of the source. An optical device for a module according to the invention and a vehicle front light assembly comprising a plurality of modules according to the invention form further subjects of the invention.

Abstract: An operating room light fixture with a light fixture housing, in which at least one lighting unit with at least one light source is arranged, with a handle, which is arranged on a side of the light fixture housing facing the operating area, wherein the handle comprises a control element for setting and/or adjusting the luminous intensity of the light source.

Abstract: An illuminating panel has disposed thereon a plurality of linear light source units, and the linear light source units each include: a light emitter having a plurality of light emitting diodes linearly installed on a base; a first reflector formed of parabolic surfaces which are provided on a light emergence side of the light emitter in such a way as to correspond to the plurality of light emitting diodes, and light emitting faces of which fall in focal positions; and a second reflector having a pair of flat plate-like reflecting surfaces which, being arranged with the light emitting diodes sandwiched therebetween, farther to the light emergence side than the first reflector and parallel to an array direction of the light emitting diodes, reflect light from the light emitting diodes toward the light emergence side, wherein the linear light source units are annularly disposed on a module panel.

Abstract: An operating room light fixture having a first lighting unit including a first light source and an external reflector, a second lighting unit including a second light source and an internal reflector, and a control unit. The second lighting unit is positioned in front of the first lighting unit with respect to the direction in which the light emerges from the light fixture. The control unit may be actuated by a rotary element located in a handle of the light fixture. A heat reflection filter may be provided for adjusting the color temperature of the light fixture to a desired value.

Abstract: The present invention provides a lamp that includes a reflection case and a light emitting element. A central portion of a lower wall inner face of the reflection case is stepwise lowered to form a lower wall enlarged inner face, and both faces are made continuous with each other through right and left perpendicular hanging inner faces, so that a central portion of a back wall inner face and a front opening are downwardly enlarged in a rectangular shape, respectively. The light emitting element is mounted on a front face of a sub mount table. A back face of the sub mount table is fixed to the central portion of the back wall inner face, and right and left end faces of the sub mount table are positioned to right and left perpendicular hanging inner faces when the sub mount table is fixed.

Abstract: The present invention comprises a method of enhancing illumination by a variety of lamp types through the use of reflective technologies, for example, replacement of expensive high intensity density of mercury vapor lamps with low wattage fluorescent tubes having at least one and in some cases, up to three reflective surfaces for focusing otherwise lost light toward a target illumination area. Further, the placement of light sources at the focal point of said reflective surfaces aids in optimizing the amount of light focused in a desired direction.

Abstract: An illumination engine for a projection display using light emitting diodes (LEDs) that includes a reflector having a first and second focal points, a source of electro-luminescence located proximate to the first focal point to emit rays of radiation in a first range of wavelengths that reflect from the reflector and converge substantially at the second focal point, and a light pipe having an first input end and a first output end, the first input end being located proximate to the second focal point to collect substantially all of the radiation and wherein the first output end transmits substantially all of the radiation.

Abstract: A structure of illuminating unit includes a point-like light-emitting device, having an optical axis. An initial-stage conoid-like reflective surface has a convergent opening end and a divergent opening end. The point-like light-emitting device is located at the convergent opening end and the optical axis is toward the divergent end for emitting light. The initial-stage conoid-like reflective surface and the optical axis include an initial-stage included angle. A final-stage conoid-like reflective surface has a convergent opening end and a divergent opening end. The convergent opening end of the final-stage conoid-like reflective surface is coupled with the divergent opening end of the initial-stage conoid-like reflective surface. The final-stage conoid-like reflective surface and the optical axis include a final-stage included angle. The initial-stage included angle is larger than the final-stage included angle.

Abstract: A short arc lamp with two transparent apertures. The lamp includes a sealed transparent arc chamber with an internal integral light reflector, and an external light reflecting element positioned external to the sealed arc transparent chamber.

Abstract: The present invention relates to a headlight apparatus in which fastening of an occulter is independent from the fastening of a light source. To this end, the headlight apparatus includes an occulter with an occulting portion which is fitted in a reflector, the occulting portion being extended in length by a central portion which is terminated by a retaining foot held in a housing formed on an outer face of the reflector, at the level of an aperture formed in the body of the reflector, by mechanical pressure exerted between the walls of the housing and the retaining foot. Preferably, the retaining foot consists of a first tongue which is used as a locking key, and a second tongue which includes, in particular, a locking slot for receiving the locking key whereby to spread the retaining foot laterally.

Abstract: A flashlight with a rotatable lamp head is provided. The lamp head pivots about two cylindrical coaxial electrical connectors. The lamp head also includes reflector having a major parabolic reflective surface and a minor reflective parabolic surface. The reflector is configured so that the minor reflective surface is nested within the major reflective surface. The flashlight also includes a series of fluid-tight seals to insure that the flashlight is waterproof. In addition, a flapper valve is provided to function as a one-way valve allowing the release of gases produced by the use of the batters, and preventing fluid from entering the flashlight. A battery charger is also provided to recharge a battery pack for the flashlight.

Abstract: An illuminating system and method for improving asymmetric projection includes a light source producing a light beam to form a light path, a projection lens disposed in the light path, a light valve inserted in the light path between the light source and the projection lens, and at least one anamorphic surface unit placed in the light path between the light source and the light valve. The anamorphic surface unit offsets a distortion of a light spot resulted from obliquely incidence on the light valve, thus an asymmetric light spot can be improved as a more symmetric one to increase illuminating collection efficiency and uniformity.

Abstract: A light guide is configured to direct light from a light source. The light guide has an outer guide member and an inner guide member located in the outer guide member. A light passage is defined through the light guide between the inner and outer guide members. When a first end of the light guide is positioned adjacent a light source, light is permitted to pass from the light source through only the light passage in the light guide. The configuration of the light guide reduces passage of light off-angle to the length of the light passage through the guide, such that light is directed substantially parallel to the light passage. The light guide is thus effective in eliminating light dispersion and associated light banding and in focusing light upon a particular object or area.

Abstract: The invention provides an illumination system that can include a first reflecting mirror arranged on a rear side of a light-emitting portion of the illumination system including an arc tube, and a second reflecting mirror arranged on the front side of the light-emitting portion of an optical system.

Abstract: A device and method for illuminating optical storage disks are disclosed. The device and method allow such disks to serve decorative and functional purposes, other than simply serving to store and transmit digital data. The display device is ideally suited to serve as a nightlight for children, and can also be utilized as an advertisement tool to promote the sale of optical storage disks or for any other suitable purpose.

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: 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 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 luminaire for distributing light rays from a light source may include a region configured to contain a lamp. The region may extend along a longitudinal axis of the luminaire. The luminaire may include first and second reflector portions disposed along the longitudinal axis. The first reflector portion may be configured to direct light rays in a direction away from the ceiling, and the second reflector portion may be configured to direct light rays in a direction toward the ceiling. The light source may be between the second reflector portion and the ceiling, with the second reflector portion defining a cusp disposed at a first side of the light source. The first reflector portion may extend through the second reflector portion and beyond the light source to a second side of the light source opposite to the first side.

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: An ornamental lamp assembly which mounts a diffraction grating in the form of a compact disc about a light socket. The diffraction grating is mounted so as to freely wobble relative to the light socket. A light bulb mounted in the light socket produces light that is reflected by the refraction grating which visually produces a series of different colors that are constantly moving due to the wobbling mounting of the grating on the light socket. The compact disc could include a series of light reflective areas and a series of light transmitting areas.

Abstract: A light guide is configured to direct light from a light source. The light guide has an outer guide member and an inner guide member located in the outer guide member. A light passage is defined through the light guide between the inner and outer guide members. When a first end of the light guide is positioned adjacent a light source, light is permitted to pass from the light source through only the light passage in the light guide. The configuration of the light guide reduces passage of light off-angle to the length of the light passage through the guide, such that light is directed substantially parallel to the light passage. The light guide is thus effective in eliminating light dispersion and associated light banding and in focusing light upon a particular object or area.

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: An illuminated display includes a light source positioned within an optical chamber defined by a first optical element having a first reflective surface with an image thereon. A second optical element is positioned within the chamber and is spaced from the first optical element to define a gap therebetween, through which gap the image is visible. The second optical element has a second reflective surface thereon for reflecting light from the light source onto the image. A third reflective surface is positioned on the first optical element and also reflects light from the light source to the second reflective surface from which light is directed to the image on the first optical element and out through the gap. In this way the efficiencies of the illuminated display are enhanced. The illuminated display is used in combination with an automotive vehicle to display branding information and logos.

Abstract: Functional yet decorative luminaires intended to create distinctive environments within specific areas of a space in which one or more luminaires are used, the luminaires of the invention visually tie to architectural elements of the space by providing a customizable glow of color surrounding a typically white light that acts to illuminate the space functionally. A downlighting luminaire configured according to the invention as one example is typically configured to utilize two separate reflectors, usually reflectors having concave reflective surfaces and being mounted concentrically within a housing, an inner reflector directing light centrally through an aperture of the luminaire with the light so directed typically being white light useful for illumination intended to facilitate usual activities within the space.

Abstract: The present invention pertains to a vehicle lamp, comprising: a lamp body in which a first illuminating direction and a second illuminating direction perpendicular to the first illuminating direction are open; an illumination lens for forming a lamp by closing the lamp body and having a first illumination surface through which the light from the light source outgoes to the first illuminating direction, and a second illumination surface through which the light from the light source outgoes to the second illuminating direction; a first reflecting surface for reflecting the light from the light source into the first illuminating direction; a shield for shielding a part of the light proceeded from the light source to the first illuminating direction; and a second reflecting surface formed on the surface facing the light source of the shield, wherein the second reflecting surface reflects and directs the light shielded by the shield into the second illuminating direction.

Abstract: An illumination engine for a projection display using light emitting diodes (LEDs) that includes a reflector having a first and second focal points, a source of electro-luminescence located proximate to the first focal point to emit rays of radiation in a first range of wavelengths that reflect from the reflector and converge substantially at the second focal point, and a light pipe having an first input end and a first output end, the first input end being located proximate to the second focal point to collect substantially all of the radiation and wherein the first output end transmits substantially all of the radiation.

Abstract: A method of producing an image display unit includes the steps of: forming, on a wafer, a display element layer composed of display elements arrayed on a specific cycle and provided with a magnetic film, and separating the display element layer into the individual display elements with magnetic film portions while keeping the array of the display elements; selecting, of all of the display elements, those located discretely at specific intervals of a value equivalent to an integer-fold of the specific cycle, and magnetizing the magnetic film portions provided on the selected display elements in such a manner that the magnetic film portions provided on the selected display units are magnetically distinguishable from the magnetic film portions provided on the non-selected display elements; and magnetically attracting the selected display elements while keeping the specific intervals thereof, and transferring the selected display elements onto a mounting board.

Abstract: A flashlight is disclosed which includes a housing adapted to receive one or more battery cells and having a transparent lens on a forward end thereof. An LED light source connected to the cell is utilized in conjunction with collimating optics positioned adjacent the LED to refract rays of light from the LED forwardly. A first paraboloid reflector having a concave reflective surface is positioned within said housing to receive rays of light from the collimating optics and to reflect the rays rearwardly and a second paraboloid reflector having a concave reflective surface is positioned within said housing to receive rays of light reflected rearwardly from the first paraboloid reflector and to further reflect the rays forwardly through the transparent lens.

Abstract: The invention relates to a lamp, in particular, a lounge, table, or pocket lamp with a lamp head (13), comprising a light source (16), arranged in a hollow reflector (17), which extends with the plug-in, or terminal contacts thereof, through an opening in the rear of the hollow reflector. According to the invention, the light source is a light diode (16). The opening in the hollow reflector (17), lies very close to the outline of the cover of said light diode, such that the light diode is centralised and longitudinally fixed in position, relative to said hollow reflector. The hollow reflector has a reflector piece, surrounding the light emitting chip of the light diode; which is at least essentially conical in shape.