Abstract: A flash tube reflector able to distribute light of the flash tube evenly is disclosed. The reflector is a vertical portion of an elliptic cylinder extending along an Y-axis. A cross section of the reflector along the XY plane is a portion of an ellipse. A zenith E at the reflector intersects the X-axis. The flash tube contacts the reflector at E. A is a center of the flash tube and c is a distance between E and A. F1 is a first focus of the ellipse of the reflector and f1 is a distance between E and F1. F2 is a second focus of the ellipse and f2 is a distance between E and F2. The relations of c, f1, and f2 are 0.20 ≦c/f1≦0.45 and 0.14≦f1/f2≦1.0.

Abstract: A luminaire for providing wide-angle illumination has a housing with an open side and an arcuate reflector with a reflecting surface that defines a plane of substantial symmetry. This reflecting surface is mounted within the housing and arranged to orient the reflecting surface towards the open side and has first and second reflector portions that are substantially mirror images of each other in relation to the plane of symmetry. The reflecting portions define a focal axis that is normal to said plane of symmetry and formed of a plurality of a substantially elongate reflecting facet surfaces or a series of reflector strips each of which is substantially parallel to the focal axis, the arcuate reflector having asymmetrical cycloidal cross sections in planes substantially normal to the focal axis, and the reflector portions forming an indentation or cusp in the direction of the light source at the point where they meet along the plane of symmetry at least in the region of the focal axis.

Abstract: Since sub-reflectors are built on left and right of a longitudinal main reflector, respectively, a headlamp can be made compact longitudinally if viewed from the front. By making the headlamp compact longitudinally if viewed from the front, the sub-reflectors are provided longitudinally, i.e., provided to be elongated vertically. Therefore, luminous intensity distribution patterns diffused downward can be obtained.

Abstract: A light fitting (10) for receiving a lighting device (12) located within a main body (11). The main body (11) includes a substantially reflective surface (13a) to direct light (17) from the lighting device (10) onto an area to be lighted. The main body (11) also includes a light directing element (18) to direct light (19) from the main body (11) across a ceiling (C) that, in use, is adjacent the light fitting (10).

Abstract: An optical assembly for architectural illumination having a quasi point source surrounded by a collimating ring lens designed to radially project collimated beams. A segmented off axis parabolic reflector to collect and reflect light (not gathered by the collimating ring lens) as collimated beams and a segmented ring reflector, the segments of which are arranged to gather beams from both the collimating ring lens and the off axis reflector and then direct them in substantially the same direction.

Abstract: A reflector for a light assembly of a motor vehicle has at least one reflector surface for rays emitted by an illumination element positioned at a spacing to the at least one reflector surface. The at least one reflector surface is a surface of revolution whose generatrix is part of a curve and ascends in a direction to the illumination element that is oriented toward the at least one reflector surface. The curve can be a parabola, an ellipse or a free-form curve.

Abstract: A light consolidating system is provided for converging light emitted from at least one lamp positioned at the focus of an ellipse. A light guiding means is provided in the system for guiding the converged light to the output side. The system is characterized by the focusing feature of the ellipse lamps and therefore increases the efficiency of consolidating light.

Abstract: A vehicular headlight includes at least one light source that emits light when in use, a reflector having a main reflection surface so positioned relative to the light source as to reflect any light reaching the same from the light source in the form of at least a low light beam delimited at least by an upper light/dark boundary at its upper region as considered in the position in which the headlight is to be used, and a light-transmitting plate extending across the path of the light beam at a distance from the light source and at least substantially devoid of any optically active profiles. A reflection element is further provided that is integral with the reflector and has an additional reflection surface deviating in configuration from that of the basic reflection surface to reflect any light reaching the same from the light source in the form of an additional light beam to an additional region situated upwardly of the upper light/dark boundary.

Abstract: A reflective surface outline 100, on which there are restrictions due to requirements from a vehicle body constitution perspective and a design perspective, is set as a basic condition for reflective surface determination, and in addition segmentation conditions and reflection conditions are set. Then, based on these various conditions, the inside of the reflective surface outline 100 is segmented along the X-axis, which is set as a segmentation axis, to produce a plurality of reflection regions, and furthermore segment surfaces 110, 121 to 151 and 122 to 152 corresponding to the reflection regions are created based on reflection angles which have been set for the reflection regions. A surface shape for the reflective surface 10a as a whole satisfying a required light distribution condition is then determined from these segment surfaces.

Abstract: A controlled-luminance lighting device comprising a fluorescent light source of a linear type (5), which extends longitudinally between a reflector (1) that is formed by an elongated body having a curved surface, and a set of transverse fins (3), which are set at a distance apart from one another and which define a grill for directional control of the light emitted by the light source (5). The reflector (1) defines, together with the transverse fins (3), a plurality of elements (2) set alongside one another of a generally parabolic shape.

Abstract: The present invention comprises a light assembly with LESDs mounted opposite to the reflective side of a reflector. A plurality of reflectors are arranged in an overlapping fashion such that the light emitted from the LESD of one reflector is directed to the reflective surface of an underlying reflector. In this fashion, a number of LESDs may be incorporated into a lighting device in a variety of patterns while maintaining the LESDs and their mountings hidden from view.

Abstract: An improved optical assembly includes a reflector/refractor device and a reflector collar provided for enhanced directional illumination control. The reflector/refractor has a predefined shape and has a plurality of reflector/refractor prisms on an exterior body surface for reflecting and refracting light. A light source is disposed within the reflector/refractor substantially along a central vertical axis of the reflector/refractor. The reflector collar supports the reflector/refractor and attaches the reflector/refractor to a luminaire ballast. The reflector collar has a predetermined contour and a plurality of reflector impressions formed into the predetermined contour. The predetermined contour and the plurality of reflector impressions provide directional illumination control for the optical assembly.

Abstract: Embodiment of the present invention comprise novel reflectors for directing more light parallel to the longitudinal axis of an illumination tube. Other embodiments are directed to devices for supporting illumination tubes. Other aspects are directed to coated substrates which provide better light distribution from illumination tubes. Other aspects of the present invention provides improved light distribution systems designed to provide protection from ultra-violet rays emanating from the light source(s) used in an illumination tube.

Abstract: A vehicular headlamp which radiates a beam forward in a predetermined low-beam light distribution pattern using a projection-type lamp unit and with which visibility to the sides of a vehicle is improved without having a significant effect on the formation of the low-beam light distribution pattern. A first additional reflector for reflecting light from a discharge light source of a discharge bulb forward is disposed below a discharge bulb of the projection-type lamp unit. A second additional reflector for reflecting reflected light from the first additional reflector to one side is provided in front of the first additional reflector. An additional light distribution pattern that partially overlaps a side portion of the low-beam light distribution pattern is formed, thereby providing improved illumination of road zones to the sides of the vehicle.

Abstract: A light-emitting apparatus includes a light source, such as a fluorescent lamp, and a multilayer mirror wrapped partially around the light source. The multilayer mirror includes alternating layers of at least a first layer type containing a first polymeric material and a second layer type containing a second polymeric material, the layers having refractive index properties the differences of which satisfy a predetermined relationship.

Abstract: A reflective fishing-light-and-heater bracket has a base plate (1) that is designedly rectangular and made to rest on a gunwale of a boat for supporting a gas light (4) and a reflector (5). The base plate includes a gunwale attachment on an attachment end, a light attachment on an attachment end and the reflector on top of the attachment end. The gunwale attachment is adaptable for attachment to all foreseeable gunwales, docks and piers. The base plate includes leg-rod apertures (13) that receive leg rods (14) for being positioned on surfaces (15) or that receive lines for being hung from a hanger. The light attachment includes a cannister basket (12) and a light holder. The reflector includes back-light apertures (38) for selective back lighting. The base plate can be positioned for facing the reflector outwardly or inwardly at variable angles from a boat, pier, a marine structure (21) or water-side surface (15).

Abstract: A light reflector having a row of light reflecting segments separated by fold lines, wherein one segment is located at a top of the row and another segment is located at a bottom of the row. A pair of wings is connected at the sides of the row, each one of the wings including a plurality of light reflecting segments separated by fold lines, wherein at least some of the light reflecting segments of the row and at least some of the light reflecting segments of the wings form a shell-shaped arrangement wherein at least some light reflecting segments of the row and at least some light reflecting segments of the pair of wings are bent at their respective fold lines whereby the arrangement is generally curved along an imaginary line connecting the one segment and the another segment and generally curved along an imaginary line perpendicular to the first mentioned line.

Abstract: A reflector for use with light emitting devices. Multiple reflective surfaces redirect light emission components of the light emitting device, for example a light emitting diode, into a desired direction. The different light emission components including a total internal reflection light emission component. Paired light emitting devices share common reflector surfaces creating an oval light pattern. Holes in the reflector accommodate electrical components and enhance heat dissipation. A deflector pattern on non-reflector surfaces minimizes sun phantom effect when the reflector is used, for example, in a traffic signal.

Abstract: A controlled-luminance lighting device comprising a fluorescent lamp (1), which extends longitudinally between a primary reflector (2) and a secondary reflector (3). The primary reflector (2) is formed by a plurality of cup-like elements (4) set alongside one another, having a generally parabolic shape, through which there extends the lamp (1), and the secondary reflector (3) is constituted by a tray-like element with a curved surface. The primary reflector (2) further includes a tile (9), which extends longitudinally between each pair of cup-like elements (4).

Abstract: LED lamp assembly particularly adapted for automotive applications that utilizes one or more standard replaceable LED bulbs with changeable optics to make multiple beam patterns. Preferably the optic is molded and easily replaced. An electric module is mounted directly under the LED to facilitate the electrical connection and provide good thermal contact. The LED light source(s) and interchangeable optic are positioned and sealed in the base of a main reflector or the vehicle hull by means well known to those skilled in the art.

Abstract: A vehicular lamp which irradiates a light by means of indirect illumination employing an LED light source and having an improved appearance when the lamp is lit. Light from an LED light source is formed into an upward parallel light flux by a Fresnel lens and reflected toward the front of a lamp by a reflector. The reflecting surface of the reflector is formed in a stepped shape by providing a reflective element and a step portion in each of a plurality of segments which are sectioned at a uniform interval in a vertical direction. The width in the longitudinal direction of the lamp of each of the reflective elements is gradually increased as the distance of the reflective elements increases from the intersection of the central axis of the parallel light flux and the reflecting surface. Accordingly, the incident light flux is made substantially constant among all the reflective elements, and hence the brightness of the light emitted by the lamp is made uniform.

Abstract: An apparatus and method are provided for providing substantially uniform illumination. The apparatus includes an elongate reflector housing with an inner surface having a substantially constant profile in cross section which is generally concave, an optical center being defined at a geometric focus of the profile of the inner surface. In a preferred embodiment, substantially uniform illumination is achieved by providing an elongate light source positioned within the elongate reflector housing such that a geometric center of the light source is situated preferably spaced outwardly from the optical center of the housing, away from the inner surface of the housing.

Abstract: An image mirror lamp mainly includes a lamp case and a double-sided mirror, wherein the lamp case has an opening disposed with a spherical lamp cup and a light bulb therein; the double-sided mirror is disposed at the front aspect of the lamp case opening. According to the abovementioned structure, when the power is turned on, the light ray emitted from the light bulb transmits outwardly from the interior portion of the double-sided mirror to form a lamp decoration; when the light bulb is turned off, the double-sided mirror is not diaphanous such that it functions as a regular mirror.

Abstract: A vehicular headlamp capable of moving an auxiliary light distribution pattern in the horizontal direction by pivoting an auxiliary lamp fixture unit in which degradation in the visibility of the road surface ahead of the vehicle caused by movement of an auxiliary light distribution pattern is substantially reduced. The brightness of a low-beam light distribution pattern formed by a headlamp unit is partially reinforced with auxiliary light distribution patterns formed by a pair of auxiliary lamp fixture units. When the vehicle turns, one of the auxiliary light distribution patterns is moved in the same direction with an upward displacement, whereby sufficient visibility ahead of the vehicle is assured. As a result of this movement, the hot zone of the auxiliary light distribution pattern is separated from the hot zone of the low-beam light distribution pattern.

Abstract: A projection-type headlamp producing a low-beam light distribution pattern having a cut-off line and which provides improved visibility for the driver of the vehicle with a reduced possibility of inflicting glare on drivers of oncoming vehicles. A low-beam light distribution pattern is synthesized from a base light distribution pattern, formed by a projection-type lamp unit, and a pair of additional light distribution patterns, formed by light reflected from a pair of additional reflectors provided on right and left sides of a lamp unit body. The additional light distribution patterns are superimposed on a horizontal cut-off line having a level difference within the base light distribution pattern. The contrast between the area above the horizontal cut-off line and the area below the horizontal cut-off line is accordingly reduced.

Abstract: An apparatus is disclosed that provides back light for liquid crystal displays (“LCD”). The apparatus includes an electrodeless lamp disposed in a cabinet for generating light; and a reflector disposed on one side of the electrodeless lamp for directing light from the lamp in the direction of the LCD. The reflector further includes a surface profile that provides a uniform distribution of light intensity into the LCD. The reflector further is adjacent and in near contact with the lamp to provide a minimum depth behind the lamp. An alternate embodiment of the invention includes an IR reflector disposed between the electrodeless lamp and a diffuser, which is located adjacent the LCD screen.

Abstract: A strobe unit includes a light source carried by a reflector. The reflector has a plurality of reflecting regions arranged around the light source, each reflecting region including a partial parabolic section extruded linearly in a first direction, and a plurality of parabolic aiming sections extruded to a point and arranged between adjacent partial parabolic sections. The parabolic aiming sections are arranged to direct light from the light source substantially in a radial plane substantially parallel to the first direction. The reflector can also include a planar section arranged between the partial parabolic section and the parabolic aiming sections.

Abstract: A headlight having an ellipse group reflecting surface as a main reflecting surface and a projection lens further includes a second reflecting surface, a third reflecting surface, and a ring-shaped lens. Direct light from a light source reaching to a space between the main reflecting surface and the projection lens is reflected by the second reflecting surface backward. The reflected light from the second reflecting surface is further reflected by the third reflecting surface, and then is adjusted with the ring-shaped lens. Light directly emitted from the light source and being ineffective in the conventional headlight can be collected using the second and third reflecting surfaces, and forwarded in an illumination direction by passing through the ring-shape lens such that the shape of the light is controlled to provide an appropriate shape, thereby contributing to the formation of light distribution characteristics and increase in the light intensity.

Abstract: A vehicular headlamp which provides a low-beam light distribution pattern having a horizontal cut-off line and an oblique cut-off line and which enhances distant visibility in the traveling line by assuring a sufficient amount of light in a hot zone, even if the height of a reflector is small. The reflecting surface of the reflector is configured to have first reflecting zones which reflect light so as to form a horizontal cut-off line, and second reflecting zones which reflect light so as to form an oblique cut-off line. The second reflecting zones Z2 are provided at two positions on right and left sides of the lamp optical axis Ax which are arranged diagonally with respect to the lamp optical axis Ax. The amount of light in a hot zone HZ is increased by superimposing light distribution patterns produced by the light reflected from each of the second reflecting zones.

Abstract: A lamp assembly comprising an elongate source of radiation, a reflector with an elongate reflective surface partly surrounding the source and having an opening for emission of radiation down towards a substrate for curing a coating thereon. The reflective surface has a generally concave profile and the source is located near the base of the concavity. The reflector includes two reflector elements each having a shaped surface which combines with the other when the elements are held in a first relative position to form a cavity in which the source is located and on the surface of which the reflective surface is provided. The source is mounted to be movable with one element to a second position relative the other element in which the source is located in a user accessible position.

Abstract: A parabolic reflector with an asymmetrical light distribution is disclosed. The inside surface of the reflector is divided into four quadrants, and two of the four opposing quadrants are coated with a reflective material. The two remaining quadrants are uncoated or specular. With the uncoated quadrants aligned along a longitudinal center line of a narrow area to be lit, the reflector provides an asymmetrical or elliptical light distribution for more efficient lighting of narrow hallways and passageways. The reflector is particularly useful in a warehouse environment.

Abstract: A lighting system operating using a digital mirror as its operative device. The digital mirror is used to shape the light which is a passed through advanced optical devices in order to produce an output.

Abstract: A reflector for use with light emitting devices. Multiple reflective surfaces redirect light emission components of the light emitting device, for example a light emitting diode, into a desired direction. The different light emission components including a total internal reflection light emission component. Paired light emitting devices share common reflector surfaces creating an oval light pattern. Holes in the reflector accommodate electrical components and enhance heat dissipation. A deflector pattern on non-reflector surfaces minimizes sun phantom effect when the reflector is used, for example, in a traffic signal.

Abstract: A polarized light source includes a diffuse light source and a reflective polarizing element placed proximate thereto. The reflective polarizing element transmits light of a desired polarization and reflects light of another polarization back into the diffuse source where it is randomized. Some of the initially rejected light is thus converted into the desired polarization and is transmitted through the reflective polarizing element. This process continues, and the repeated reflections and subsequent randomization of light of the undesired polarization increases the amount of light of the desired polarization that is emitted by the polarized light source.

Abstract: A motor vehicle has left and right hand headlights, each with a reflector having a complex surface with a lamp fitted within the reflector. Each lamp has a dipped or passing beam filament and a main beam filament. The position of the main beam filament is defined by its angular position with respect to a position of origin vertically below the main axis of the lamp, on a circle centered on the main axis, the main beam filament being oriented positively in the trigonometric direction looking forward along the main axis. The angular position of each main beam filament is in the range between −90° and +90°, and is different for each headlight.

Abstract: A system for heating a plurality of semiconductor wafers at the same time is disclosed. The apparatus includes a thermal processing chamber containing a substrate holder designed to hold from about three to about ten wafers. The thermal processing chamber is surrounded by light energy sources which heat the wafers contained in the chamber. The light energy sources can heat the wafers directly or indirectly. In one embodiment, the thermal processing chamber includes a liner made from a heat conductive material. The light energy sources are used to heat the liner which, in turn, heats the wafers. In an alternative embodiment, energy dispersing plates are placed in between adjacent wafers. Light energy being emitted by the light energy sources enters the energy dispersing members and gets distributed across the surface of adjacent wafers for heating the wafers uniformly.

Abstract: A headlamp in which a right elliptic reflecting surface and a left elliptic reflecting surface are provided on a position toward an upper front portion of the bulb, a right parabolic reflecting surface is provided on a position toward a right lower portion of said main reflecting surface, and a left parabolic reflecting surface is provided on a position toward a left lower portion of said main reflecting surface, whereby waste light can be recovered and used as irradiating light. A headlamp in which the elliptic reflecting surfaces which capture light emitted upwardly and forwardly from the bulb and parabolic reflecting surfaces which reflect said light in a desired direction are provided. A light-distribution varying means is provided in the optical path of the parabolic reflecting surfaces, whereby it becomes possible to switch between light distributions.

Abstract: Pixels for a large video display which employs solid-state emitters, such as colored light emitting diodes, as light source are formed by outfitting each colored solid state emitter within the pixel with an individually tailored miniature intensity-enhancing optical system. Each of these miniature optical systems comprises a set of four wide field-of-view Lambertian reflectors 34, a pair of narrow field-of-view Lambertian reflectors 36, and a beam-shaping lens 38. The miniature intensity-enhancing optical system can be specifically designed to restrict emission in the vertical field-of-view, while providing a Lambertian intensity dependence throughout an unrestricted horizontal view. For example, the field-of-view in the vertical direction may be limited to about ±30° while the field-of-view is about ±90° in the horizontal direction.

Abstract: An illumination obscurement device for controlling the obscurement of illumination from a light source which is optimized for use with a rectangular, arrayed, selective reflection device. In a preferred embodiment, a rotatable shutter with three positions is placed between a light source and a DMD. The first position of the shutter is a mask, preferably an out of focus circle. This out of focus circle creates a circular mask and changes any unwanted dim reflection to a circular shape. The second position of the shutter is completely open, allowing substantially all the light to pass. The third position of the shutter is completely closed, blocking substantially all the light from passing. By controlling the penumbra illumination surrounding the desired illumination, DMDs can be used in illumination devices without creating undesirable rectangular penumbras.

Abstract: The object of the present invention is to effectively utilize the light rays emitted from a light source lamp 1, and, for accomplishing this object, a reflector 2 is made up of a first parabolic reflector 3 designed for reflecting light rays coming from the light source lamp 1 to be outputted as light rays parallel to the optical axis 6, second parabolic reflector 4 designed for reflecting light rays coming from the light source lamp 1 as outwardly inclined parallel light rays, and circular truncated conic reflector 5 for reflecting light rays coming from the second parabolic reflector 4 and outputted as light rays parallel to the optical axis 6. In this fashion, light rays which cannot be outputted due to being in the shadow of the spherical light source lamp can be outputted as light rays parallel to the optical axis 6.

Abstract: A post top deck light fixture having a user adjustable reflector which allows a user to adjust light distribution in a desired manner. The fixture comprises a base, a refractor having at least one prismatic surface, a reflector having a light blocking member depending therefrom by a perforated connection, and a roof.

Abstract: The invention is related to a reflector lamp comprising a parabolic primary reflecting section, a parabolic or spheric secondary reflecting section joined to the primary reflecting section, a parabolic or spheric tertiary reflecting section joined to the secondary reflecting section, and an incandescent or discharge light source. The secondary and tertiary reflecting sections have faceted surfaces which longitudinally extend along the surface thereof so that most (at least 50%) or substantially all the light reflected by the faceted surfaces avoids the light source and thus the light, which would be absorbed or scattered by the light source, is minimized or substantially eliminated.

Abstract: A motor-vehicle light comprises a hollow body with a transparent element facing a main reflective structure which reflects the light rays coming from a source arranged at one side of the main reflective structure towards the transparent element, an auxiliary reflective element being associated with the light source. The main reflective structure has a shell-like configuration, which is visible from the outside since the transparent element has no optical elements. The shell-like configuration comprises a plurality of optically active surface sectors alternated to connecting walls which are substantially radial with respect to the source. The optically active sectors are geometrically generated by translation or rotation of a family of generating curves each having undulations with a pitch substantially lower than the pitch of the distribution of the optically active surface sectors.

Abstract: A light reflector having a row of light reflecting segments separated by fold lines, wherein one segment is located at a top of the row and another segment is located at a bottom of the row. A pair of wings is connected at the sides of the row, each one of the wings including a plurality of light reflecting segments separated by fold lines, wherein at least some of the light reflecting segments of the row and at least some of the light reflecting segments of the wings form a shell-shaped arrangement wherein at least some light reflecting segments of the row and at least some light reflecting segments of the pair of wings are bent at their respective fold lines whereby the arrangement is generally curved along an imaginary line connecting the one segment and the another segment and generally curved along an imaginary line perpendicular to the first mentioned line.

Abstract: A vehicle headlight can include a light source, first and second ellipse group reflecting surfaces having a focus corresponding to the light source, a first parabolic group reflecting surface with a focus on a second focus of the second ellipse group reflecting surface, and a second parabolic group reflecting surface with a focus corresponding to the position of the light source. A movable shutter can be provided with a shutter part and a shade part. When the shade part is placed in the light flux of the first ellipse group reflecting surface, the shade part shades the light flux irradiating from the light source to the second parabolic group reflecting surface. On the other hand, when the shutter part is withdrawn from the light flux, the second parabolic group reflecting surface can receive light.

Abstract: A vehicle light can include a multi-reflex optical system having a light source, a first reflecting surface system and a second reflecting surface system. The first reflecting surface system can include a parabolic group reflecting surface, an ellipse group reflecting surface or combination thereof. The second reflecting surface system can include an ellipse group reflecting surface having a first focus located approximately on the light source and a second focus. The ellipse group reflecting surface can be located such that it covers the front of the light source and collects light rays emitted from the light source directed to its second focus. The second reflecting surface system can include a parabolic group reflecting surface having a focus in the vicinity of the second focus of the ellipse group reflecting surface, and an adjusting reflecting plate located in the vicinity of the second focus of the ellipse group reflecting surface.

Abstract: An Optic Reflection device, for application as Reflectors in the Light Track of optic installations, more specifically, as Reflector for single or multiple reflections in the scanner, apparatus of optics industry. Designed trapezoidal as opposed to rectangular or otherwise configuration pursuant to prior arts. In a preferred embodiment, the application is in the form of a reflector of single reflection to incident light beam; in another preferred embodiment, the application is in the form of reflector permissive of multiple reflections. Design pursuant to the trapezoidal optic reflector pertaining to the invention can substantially reduce space required of Light Track in an optic system, and therefore commensurably volume and weight claimed in the entire optic system, which facilitates compact design of the products and installation of other devices or utilities in the space so saved in the entire optic system.

Abstract: The luminaire comprises a concave reflector (1) with an optical center (2) on an optical main axis (3), in an optical main plane (4). A screen (6) extends along the main axis (3) up to a light emission window (5). A panel (7) extends at a first side of the main plane (4) from the screen (6) up to the light emission window (5). The reflector (1) includes a first, faceted reflector portion (10) at the first side of the main plane (4), which extends towards the main plane (4), and which may be parabolically curved, the optical center (2) being its focus and the main axis (3) being its axis. A second, faceted reflector portion (20) is present at the other side of the main plane (4) and may be parabolically curved, which reflector portion has a side axis (22) passing through the optical center (2), and a focus lying in the optical center (2). The side axis (22) is tilted, with respect to the main axis (3), through acute angles in the main plane (4) and out of said main plane (4).

Abstract: The present invention relates to a multi-angle reflector for use in a backlight unit. The back light unit comprises a plurality of lamps, a multi-angle reflector and a diffuser. The multi-angle reflector comprises a plate and a plurality of reflecting protrusions. The plate has a top surface toward to the lamps. The reflecting protrusions are respectively disposed on the top surface of the plate. Each reflecting protrusion has a reflecting surface. The reflecting surfaces have a plurality of reflecting angles corresponding to the top surface of the plate so that the light from lamps are adapted to reflect to the diffuser according to the reflecting angles. Therefore, according to the invention, the reflecting angles of the reflecting surfaces on the reflecting protrusions can be adjusted so as to suit to various actual conditions. The lights are uniform and the utility of the lights is improved. Because the reflecting protrusions are small, the reflector can be made into a thin type.

Abstract: A designing method of a reflective surface RS according to the present invention has a step of generating an XY curve Q on an XY plane including the X-axis (optical axis) and Y-axis; a step of, at each of a plurality of base points P existing on the XY curve Q, generating an XZ curve R on a plane (UZ plane) including the base point P and being parallel to a reflection direction of light at the base point P and normal to the XY plane; and a step of generating a surface shape of the reflective surface RS, based on the XY curve Q and the plurality of XZ curves R. This substantiates a method of designing a reflective surface of a reflector in a vehicle lamp with improved controllability of a light distribution pattern and with improved efficiency of a designing work.