Abstract: An optical unit, includes a light conductive plate having a first surface and a second surface, at least one optical sheet on the first surface of the light conductive plate, and a light reflective sheet extending over the entire second surface of the light conductive plate and fastened on a portion of a first surface of the optical sheet adjacent the periphery thereof to fasten the light conductive plate, the optical sheet, and the light reflective sheet as an optical unit, and to define a light discharge region on the first surface of the optical sheet and the first surface of the light conductive plate.

Abstract: The present invention discloses a lighting unit comprising: a reflector panel; a plurality of substantially U-shaped cold cathode tubes held parallel relative to the reflector panel; an inverter substrate; cold cathode tube holders for holding the cold cathode tubes parallel relative to the reflector panel in such a manner that terminals of the cold cathode tubes are arranged in a row along one side of the reflector panel; a substrate holder for holding the inverter substrate to be vertically relative to the reflector panel in such a manner that a lower side of the inverter substrate reaches a positions where the terminals are arranged in a row; a plurality of notches upwardly cut deep from the lower side of the inverter substrate so as to receive the terminals; and solders provided for making electrical connections between the terminals and electrical supply patterns formed in the notches.

Abstract: A surface light source device includes a light source body, first and second electrodes, a light reflecting layer, and a fluorescent layer. The light source body is configured to generate light. The first and second electrodes are each disposed adjacent to a corresponding opposite end portion of the light source body. The first and second electrodes receive a discharge voltage that creates a potential difference across the light source body. The light reflecting layer is disposed at an internal surface of the light source body. The light reflecting layer includes light diffusing particles having at least two sizes. The fluorescent layer is disposed at selected regions of the light source body. Therefore, the light reflecting layer is not deformed by heat and enhances reflectivity without changing a color coordinates.

Abstract: A highly adaptable system for creating colorful spectral displays or for achieving a prismatic effect using visible light is provided. The invention includes a fixed-angle or monolithic prismatic element fabricated from plate glass mirror material. A compound version of this monolithic element wherein multiple single elements have been affixed to one another for the purpose of creating a more complex spectral display is also provided. The invention also includes a prism-like device that utilizes a standard mirror, mirrors, or other materials with highly reflective surfaces and water or a similar fluid that disperses light in a predictable manner at or on a specific target. Both the fixed prismatic elements and the adjustable light dispersing elements may be arranged into one or more arrays that may be used to create complex spectral displays on a variety of surfaces while utilizing one or more available light sources or a moving light source such as the sun.

Abstract: A method of producing a mold for use in duplicating a light diffusion sheet is provided. The method includes a step of conducting sand blasting for blasting abrasive material from a blast gun to a surface of a mold base material to form unevenness in the surface of the mold base material, wherein the abrasive material is blasted to the surface of the mold base material at a blast angle of less than 90°.

Abstract: Disclosed herein is a prefabricated light reflecting system having standardized reflectors to be mounted to corners of the ceiling of an elevator cage. Here, a required number of reflectors are successively connectable to correspond to the size of the elevator cage. The light reflecting system includes a corner reflector, a bulb mounting plate, and an end reflector. If necessary, one or more intermediate reflectors may be added.

Abstract: A white light emitting diode (LED) is provided, which includes a reflective mirror arranged on the light emitting path of a blue or an ultra violet LED die at an appropriate angle. Phosphors are coated on the reflective mirror, the emitting plane of the LED, or both so that the phosphors are excited by the blue or UV lights emitted by the LED die to produce white lights. The present invention provides a white LED having a long lifetime and a uniform light color by separating the phosphors from the LED die, and by allowing the lights emitted from the LED die to undergo several excitations with the phosphors.

Abstract: It is an object of the present invention to provide a reflector for lighting which has shape holding property, flexibility and lightweight property. That is, a reflector for lighting of the present invention comprises: a reflective material 1 made of a polymer membrane of which an average reflectance of 400 to 700 nm wavelength of at least one surface side is 85% or more and having a ridge-shaped uneven shape; and a reinforcing material having flexibility, and the reinforcing material connects the bottom parts of concave parts with each other from the back side of the one surface side of the reflective material 1 to reinforce the uneven shape.

Abstract: A light-emitting device of high light extraction efficiency comprises a first substrate, a light-emitting chip positioned on the first substrate and configured to emit light beams, a fluorescent material positioned on the light-emitting chip, a photonic crystal positioned on the fluorescent material and a reflector positioned on the photonic crystal and configured to reflect the light beam to the fluorescent material. The first substrate is preferably a metallic cup, and the light-emitting chip is positioned at the bottom of the metallic cup. The photonic crystal includes a second substrate and a plurality of protrusions positioned on the second substrate. Each of the protrusions includes a bottom end positioned on the second substrate and a tip portion smaller than the bottom end. The plurality of protrusions can be triangular pillars, semicircular pillars, sinusoid pillars, pyramids, or cones.

Abstract: A reflector for a light source, disposed at a back of a light source lamp for reflecting light from the light source lamp in a direction of an X axis, includes: a first reflecting portion having a reflecting surface whose cross section in an XZ plane is a curve open toward the direction of the X axis; and a second reflecting portion coupled to an end of the first reflecting portion in the direction of the X axis having a reflecting surface whose cross section in the XZ plane is straight lines spaced further apart from each other toward the direction of the X axis.

Abstract: A lamp assembly includes a reflector body having an integral crimping portion that extends inwardly over a channel formed in the reflector body, a seal feature arranged within the channel, a cathode assembly having an edge feature extending into the channel, and a resilient member held in a state of compression between the crimping portion and a first surface of the edge feature such that an opposing second surface of the edge member is held against the sealing feature thereby creating a hermetic seal between the cathode assembly and the reflector body.

Abstract: An illumination system that makes it possible to generate light with less color irregularity with a simple structure while restraining the increase of size is provided. A tube-shaped reflector having a tube-shaped wall whose inner surface is reflective is provided. The wall includes an aperture extending along a longitudinal axis of the reflector. In the reflector, plural sets of LEDs are arranged, where colors of light to be emitted from the LEDs in each set are different (for example, red, green, or blue LEDs are used for each set). The LEDs in each set are arranged along the longitudinal axis of the reflector to form a linear light source. A collecting lens is fixed to the reflector in such a way as to fill the aperture of the reflector.

Abstract: A lighting fixture for providing illumination comprising a housing, a printed circuit board, and a plurality LEDs connected to the printed circuit board. Optionally an emergency LED may also be included. A heat sink is connected to the housing and printed circuit board. Each of the plurality of the LEDs is mounted on the heat sink. A reflector is disposed inside the housing such that the light from the LEDs is mixed together and projected out of the illumination end of the housing by the surface of the reflector. The lighting fixture is received into a mounting flange assembly. A method for providing illumination using the above.

Abstract: A reflector according to the present invention can certainly reflect light emitted from a lamp in a desired direction without producing distortion in a reflection surface by specifying the distance between a projection portion and a back side end portion of the reflection surface of a reflector to be in the optimal range. The reflector, having a front side opening portion, a back side opening portion and a reflection surface, the reflector comprises a projection portion provided in an inner surface of the reflector, wherein, the projection portion is formed in an area at a 2.5 mm or more distance from a back side end portion of the reflection surface toward a back side.

Abstract: A reflector for use in a projection system comprises an anodized metal substrate having a metal oxide layer. The metal oxide layer has a plurality of pores. A light absorbing pigment is deposited into each of the pores such that the light absorbing pigment and the metal oxide layer form a light absorbing layer on the metal substrate.

Abstract: Disclosed is a light reflector formed of a white polyolefin film which contains a polyolefin resin and a filler and is oriented at least monoaxially to have an areal draw ratio of from 1.3 to 80 times, which has a whole ray reflectance of at least 95% and undergoes a dimensional change of at most 1.5% when left at 70° C. for 300 hours, and which has a melting-starting temperature of 70° C. or higher. The light reflector hardly causes brightness unevenness of the planar light source when it is built in a planar light source device and used for a long period of time.

Abstract: A booster optic is provided in an LED light assembly that includes a primary reflective surface to redirect light towards a desired location to form an illuminance pattern that when combined with a first illuminance pattern, which is formed by only the primary reflector, provides a combined illuminance pattern having a more uniform illuminance characteristic as compared to not having the booster optic.

Abstract: A visible light-reflecting member is disclosed which uses a plate or a film for reflecting visible lights, whose reflective surface is provided with an aluminum thin film having an aluminum purity of not less than 99 mass % and an X-ray diffraction pattern wherein, among peak intensities ascribed to aluminum, the peak intensity ascribed to the (111) plane is higher than the total of the other peak intensities.

Abstract: An illumination apparatus has first and second optical condenser systems sharing a common aperture. The first optical condenser system has a first solid-state light source having a first spectral band and a first curved surface spaced apart from the first solid-state light source and treated to reflect the first spectral band along a first optical path to exit at the common aperture and to pass light outside the first spectral band. The second optical condenser system has a second solid-state light source having a second spectral band and a second curved surface disposed behind the first curved surface with respect to the first and second light sources and treated to reflect the second spectral band along a second optical path to exit at the common aperture.

Abstract: A light emitting device has a light emitting element, and a phosphor layer of phosphor glass to generate fluorescence while being excited by light emitted from the light emitting element. The light emitting element emits ultraviolet light, and the phosphor glass generates visible fluorescence while being excited by the ultraviolet light.

Abstract: A modular illumination device with adjustable illumination modules includes a substrate, a rotating element, a reflective element, an adjustable element, and a light-emitting element. The rotating element is rotatably disposed on the substrate and rotates corresponding to the substrate. The reflective element pivots on the rotating element and pivots corresponding to the substrate. The adjustable element is moveably disposed on the substrate and is moved corresponding to the reflective element. The light-emitting element is disposed on the adjustable element. The modular illumination device can be adjusted to shine light at any angle or in any direction. Furthermore, a plurality of illumination modules are combined to form the modular illumination device. By adjusting the lighting range and direction of the illumination modules respectively, the illumination device has different illumination ranges.

Abstract: The present invention provides a luminaire comprising a lamp housing having an upper surface and at least one opposed pair of lamp holders extending downwardly from opposing ends of said housing. The housing includes a plurality of apertures in the upper surface thereof to permit transmission of light therethrough and a reversible reflector capable of being secured to said housing in a plurality of positions having a plurality of apertures therein wherein in a first position the apertures in said reflector are aligned with the apertures in said housing to permit light transmission therethrough and wherein in a second position the apertures in said housing are covered by said reflector to prohibit light transmission therethrough.

Abstract: A lighting assembly is provided that includes a white LED and a reflector assembly, wherein the surface of the reflector assembly selectively reflects a portion of the output from the LED in a manner that results in a color temperature shift of the light output from the LED. To produce the color shift in the light output, the reflective surface of the reflector assembly is coated with a thin film of material. The coating causes a shift in the composite light output from the LED in combination with the reflector that moves towards a lower color temperature or a warmer hue. In turn, the shift produces a composite light output that exhibits a greatly improved color rendering index, while also maintaining a high level of efficiency for the assembly as a whole.

Abstract: An illuminator includes a concave mirror to reflect incident light in a predetermined direction, an inner reflective mirror provided on an optical axis of the concave mirror and having a reflective surface at least one surface thereof, a light source installed on at least one surface of the inner reflective mirror to generate and illuminate light, and a retro-reflective mirror provided at a focal point of the light reflected from the concave mirror, or in a vicinity of the focal point, and having an aperture through which some of the light illuminated from the light source and reflected by the concave mirror passes and a retro-reflective surface to reflect remaining light not passing through the aperture back toward the concave mirror.

Abstract: A reflector includes a body that defines an optical surface. A reflective surface is disposed on the optical surface including a stack of dielectric layers defining at least one notch filter.

Abstract: An illumination apparatus which is, in the preferred embodiment, adapted to be mounted in a through-hull configuration in a marine vessel, and which is comprised of a housing, which is preferably cylindrically shaped, surrounding a light bulb and light bulb socket, or terminal block, a reflector, first adjustment structure for moving the light bulb and terminal block linearly relative to the reflector to adjust the sweep of emitted light, and second adjustment structure for altering the angular position of the light bulb, terminal block and reflector relative to the housing to adjust the angle of incidence of the emitted light.

Abstract: A light source device has a discharge lamp in which within the discharge vessel there is a pair of opposed electrodes, a concave reflector which has an ellipsoidal front reflector part which is provided with a light exit opening, and a spherical reflector part which borders the back end of the ellipsoidal front reflector part, is improved in that the middle between the electrodes of the discharge lamp is arranged with respect to the concave reflector such that the middle is located in front of a virtual plane which includes the boundary region between the ellipsoidal front reflector part and the spherical reflector part. The concave reflector can also have an ellipsoidal rear reflector part which borders a back end of the spherical reflector part.

Abstract: An embodiment of the invention is an illumination system including a source of incoherent light capable of generating light in a first wavelength range and an elongate body that emits light in a second wavelength range when illuminated by light in the first wavelength range. The body has a length dimension, a width dimension and a height dimension. At least a portion of the body is tapered so as to increase in width and/or height along the length dimension. The body further includes an extraction surface. A first non-extraction surface extends along at least a portion of the length of the body and is disposed so as to share a common edge with the extraction surface. At least some of the light at the second wavelength is totally internally reflected at the non-extraction surface. At least one external reflector is disposed proximate to the non-extraction surface so as to create a gap between the external reflector and the non-extraction surface.

Abstract: An embodiment of the invention is an illumination system including a source of incoherent light capable of generating light in a first wavelength range and an elongate body that emits light in a second wavelength range when illuminated by light in the first wavelength range. The body further includes an extraction surface. A first non-extraction surface extends along at least a portion of the length of the body and is disposed so as to share a common edge with the extraction surface. At least some of the light at the second wavelength is totally internally reflected at the non-extraction surface. At least one external reflector is disposed proximate to the non-extraction surface so as to create a gap of less than 100 microns between the external reflector and the non-extraction surface.

Abstract: A light beam redirecting apparatus is disclosed. In an illustrative embodiment, the light beam redirecting apparatus includes an aperture housing, a light module provided in the aperture housing, at least one reflective surface provided in the aperture housing adjacent to the light module, an aperture tunnel provided in the aperture housing adjacent to the at least one reflective surface and a tunnel opening provided in the aperture housing and communicating with the aperture tunnel.

Abstract: A lighting system is described. One embodiment of the lighting system includes a light guide, a first lighting device, and a second lighting device. The light guide receives light along a transmission interface. The first lighting device has a first plurality of lighting elements coupled to a first substrate between a first pair of reflector walls. The first substrate and the first pair of reflector walls define a first exposed side of the first lighting device. The second lighting device has a second plurality of lighting elements coupled to a second substrate between a second pair of reflector walls. The second substrate and the second pair of reflector walls define a second exposed side of the second lighting device configured to match the first exposed side of the first lighting device. Using lighting devices without sidewalls illuminates a diffusion panel so that there are no dark spots.

Abstract: This invention is related to an information display unit, especially a number display unit, comprising light-emitting diodes (LED) as the source of the light for either direct or indirect display of the light. In one embodiment of this invention for a direct display, the light emitted by the LED is made more focused by a tunnel device with reflective inner wall; and under another embodiment of the invention of an indirect display the light emitted by the LED is made smooth by a filtering means.

Abstract: The presented invention relates to a light deflector. The light deflector defining a light-incident side and a light-exiting side, the deflector comprising a plurality of reflector(42) arranged side-by-side in a predetermined orientation, each reflector having, a first reflection face(42A), provided on the deflector light-incident side, for reflecting incident light so as to focus the light, and a second reflection face (42B), provided on the deflector light-exiting side, for reflecting light reflected by the first reflection face of an adjacent reflection means(42). In accordance with the present invention, light utilization efficiency can be raised.

Abstract: An optical manifold for efficiently combining a plurality of LED outputs into a single, substantially homogeneous output, in a small, cost-effective package. The optical manifolds can be used to combine multiple LEDs of the same color and provide a high intensity output aperture with very high uniformity and sharp borders, or they can be used to generate a multiwavelength output, such as red, green, and blue LEDs that are combined to generate white light. Embodiments are also disclosed that use a single or multiple LEDs and a remote phosphor and an intermediate wavelength-selective filter arranged so that backscattered photoluminescence is recycled to boost the luminance and flux of the output aperture. The optical manifolds are designed to alleviate substantial luminance inhomogeneities inherent to LEDs. The optical manifold utilizes principles of non-imaging optics to transform light and provide directed, substantially uniform light sources.

Abstract: A luminaire has a concave reflector with an optical center on an optical main axis in an optical main plane. A screen extends along the optical main axis to a light emission window. The reflector has a first faceted reflector portion at a first side of the optical main plane, the optical center being its focus and the optical main axis being its axis. A second faceted reflector portion is present at a second side of the optical main plane, having a secondary axis passing through and a focus lying in the optical center. The secondary axis is tilted with respect to the main axis through acute angles in the main plane as well as out of the plane. The luminaire produces a screened-off light beam which is horizontally and vertically asymmetrical, which makes the luminaire suitable for an illumination of highways in a counter-traffic direction.

Abstract: A vehicle lamp includes a reflective member having a silver vapor deposition reflective surface with good durability to prevent cracking or peeling of a protective film and capable of maintaining a high reflectance. The reflective member includes a topcoat layer which serves as a protective film on a silver vapor deposition film which is a silver alloy including Nd on a surface of a base material made of synthetic resin inside a lamp chamber S. The topcoat layer 64 includes a transparent modified silicone series resin using a silicone resin and an acrylic resin as resin components.

Abstract: A utility lamp (1) comprises a curved reflector (2) having a spherically curved surface. An array of LEDs (3) is arranged in an electrical circuit on a thin substrate mounted via thermally conductive epoxy on a thermally-conductive base (4), which in turn forms an integral part of the reflector (2). The LEDs are mounted for efficient heat transfer by conduction to the reflector (2). The reflector (2) thus operates as both a light reflector and as a radiative heat sink. The heat radiating properties of the reflector are enhanced by integral fins (7) extending in the radial direction around the periphery of the reflector (2). The reflector (2) is of integral aluminium construction.

Abstract: In one embodiment, the invention is a light emitting diode module with improved light distribution uniformity. One embodiment of a signal head includes a light emitting diode and a reflector cup positioned to reflect light emitted by the light emitting diode, the reflector cup having a non-symmetrical curvature.

Abstract: An optical modulator used for optically modulating electromagnetic energy. The optical modulator comprises a substrate and three substantially planar reflectors arranged substantially mutually orthogonal to each other. The planar reflectors comprise a base reflector disposed substantially in the plane of the substrate and first and second side reflectors operably coupled to the base reflector. The optical modulator further comprises a pair of electrically conductive traces operably connected to the base reflector, an electrically conductive pad operably connected to each of the conductive traces, at least one material layer deposited on the base reflector by which its reflection properties may be altered or modulated with an applied voltage, and a biasing source operably coupled to said conductive pads for providing a modulated voltage to the base reflector.

Abstract: A light-emitting module has: a single reflector having a plurality of concave reflection surfaces; and light emitters in a same number as a number of the concave reflection surfaces. Each of the concave reflection surface has an outer shape partially notched at a boundary thereof with the adjacent concave reflection surface. Each of the light emitters emits light toward the concave reflection surface.

Abstract: A light source module includes at least a light source and a housing. The housing includes a base having a slanted reflective surface, a plurality of sidewalls extending out of a peripheral of the base cooperatively defining an opening with the base, the sidewall aligned with a trough of the slanted reflective surface having an inner surface and an outer surface opposite to the inner surface, and a plurality of fin structures formed on the outer surface of the sidewall. The light source is fixed on the inner surface of the sidewall. Light rays emitted from the light source being reflected at the slanted reflective surface toward the opening. A backlight system using the light source module is also provided. The present backlight system has a good heat dissipation capability due to an employment of the present light source module, and can be configured to be a thin body.

Abstract: A light source device includes: a light source lamp having a light-emitting tube with a discharge space and a pair of electrodes disposed in the discharge space of the light-emitting tube; a reflector extending in a substantially concave shape in section, the reflector reflecting a light beam irradiated from the light source lamp; and a sub-reflection mirror having a reflection surface that is disposed to face a reflection surface of the reflector, the sub-reflection mirror reflecting a part of the light beam irradiated from the light source lamp toward the discharge space. The light-emitting tube has a light-emitting section having the discharge space therein and sealing sections provided on both sides of the light-emitting section.

Abstract: A light-enhancing structure having an optical cavity defined by two Bragg reflectors that are substantially parallel to one another and two edge reflectors that are substantially parallel to one another. A light-emitting material is disposed within the optical cavity. The optical cavity is configured to enhance an incident pump radiation introduced into the optical cavity.

Abstract: A reflector lamp assembly may be formed with a reflector housing having a reflector with a prescribed reflective surface; the reflector formed with a wall defining a through passage. A lamp bulb assembly having an axially extending stem supports a head extending transverse to the axis, the head having a first generally linearly extending region, a first set of LEDs mounted generally in a row along the region oriented to face in one plane towards a reflector. Electrical connections for the LEDs extend through the head, and stem to the exterior of the assembly for electrical connection. A base extends in the through passage and is mechanically mounted to the optical housing with the LED assembly oriented to face the reflective surface.

Abstract: To reduce or prevent adhesive particles from being scattered toward a light-emitting portion of an arc tube and an auxiliary reflecting surface of an auxiliary mirror even when an inorganic adhesive injected for fixing the auxiliary mirror to the arc tube is boiled, a method of manufacturing a light source lamp includes: setting a light-reflecting surface of the auxiliary mirror so as to face the light-emitting portion of the arc tube and injecting an adhesive into a gap between the auxiliary mirror and the arc tube; heating and curing the adhesive from a side nearer to the light-emitting portion of the arc tube; and attaching the reflector to the arc tube with the auxiliary mirror fixed thereto. For example, a heated air blowoff and light irradiation toward the adhesive form the side nearer to the light-emitting portion of the arc tube may be performed. Further, a projector includes: an illumination system with the light source lamp; an optical modulator; and a projector lens.

Abstract: An illumination system is for providing a parallel illumination light beam. The illumination system includes two lamps, and each lamp includes a first lampshade, a burner and a reflector. The lampshade has a light outputting section. A first reflector is connected with the first lampshade, and a portion of the light outputting section is covered by the first reflector. A diverging light is provided by the burner. The diverging light is transformed into a parallel light beam by the lampshade and the first reflector, and the parallel light beam is outputted from a portion of the light outputting section without covering. The illumination system further includes at least one second reflector disposed between the lamps, on the optical path of at least one portion of the parallel light beam. The parallel light beams from the lamps are thereby combined into a parallel illumination beam by the second reflector.

Abstract: A lighting apparatus using microwave comprises: a waveguide for transmitting microwave generated in a magnetron; a mesh screen installed on an outlet portion of the waveguide for blocking a leakage of the microwave and passing light; a bulb located in the mesh screen for emitting light by the microwave; a dielectric mirror installed on the outlet portion of the waveguide for reflecting the light emitted in the bulb forward parallelly; and a reflector installed around the mesh screen for reflecting the light emitted in the bulb forward, and the reflector and the dielectric mirror are constructed so that the light generated in the bulb can be radiated as parallel ray, whereby loss of light can be minimized and lighting efficiency can be improved.

Abstract: An illumination device has a light-transmitting member formed in the shape of a toroid having a light-receiving surface and a light-emitting surface, the light-transmitting member defining a central axis, a light source located along the light-transmitting member central axis, and a light-directing housing for guiding light from the light source into the light-receiving surface of the light-transmitting member. The light-transmitting member may have optical waveguide and light-scattering characteristics, whereby the light-transmitting member emits light having a substantially uniform intensity along the light-emitting surface. The light-directing housing has a top reflector member and a bottom reflector member positioned on opposing side of the light source and cooperating with the light-transmitting member such that light is emitted only through the light-transmitting member.

Abstract: A computer peripheral device includes a body, a printed circuit board (PCB), a light source, and a reflecting device within the body arranged to cause light to be emitted from the body in a homogeneous manner.

Abstract: A light source device includes: a light source lamp that has a light-emitting portion and sealing sections provided on both sides of the light-emitting portion; a reflector that aligns and irradiates a light beam radiated by the light source lamp in a predetermined direction; and a sub-reflection mirror of which reflection surface opposes to a reflection surface of the reflector and reflects the light beam radiated by the light-emitting portion of the light source lamp toward the reflector. In the sub-reflection mirror, an adhesion surface of an insertion hole is bonded to the sealing section by an adhesive in a condition that the sealing section is inserted in the insertion hole. A cutting portion of the sub-reflection mirror is so formed to extend over a portion bonded by the adhesive in plan view.