Abstract: There is presented a light fixture (200) comprising an nation device (244) comprising a plurality of light sources (103) emitting light along an optical axis (247); an optical gate (242) arranged along the optical axis; a light collector (241) placed between the plurality of light sources (103) emitting and the optical gate (242) and adapted to collect light from the light sources and adapted to project at least a part of said light along said optical axis (247); and one or more color filters (251, 253), such as color filters for subtractive color mixing, such as dichroic filters or color gels or the like, such as arranged to be traversed by the optical axis (247), placed between the light collector (241) and the optical gate (242), and a converging optical component (263), such as a first converging optical component (263), placed between the one or more color filters (251, 253) and the optical gate (242) and further comprising an optical projecting system (243) placed on the opposite side of the optical gat

Abstract: A system for generating laser sustained broadband light includes a pump source configured to generate a pumping beam, a gas containment structure for containing a gas and a multi-pass optical assembly. The multi-pass optical assembly includes one or more optical elements configured to perform a plurality of passes of the pumping beam through a portion of the gas to sustain a broadband-light-emitting plasma. The one or more optical elements are arranged to collect an unabsorbed portion of the pumping beam transmitted through the plasma and direct the collected unabsorbed portion of the pumping beam back into the portion of the gas.

Abstract: A light control system includes a housing, a controllable power source, a light source, and a plurality of cube-shaped tunable prisms. The controllable power source supplies at least four variable voltages. The light source is operable to emit a light beam. The cube-shaped tunable prisms are arranged in a manner so there are no gaps between adjacent tunable prisms. Each tunable prism receives a portion of the emitted light beam, each has a tunable deflection angle that is variable in two dimensions, and each is configured to optically steer the emitted light beam in the two dimensions based on the tunable deflection angle. Each tunable prism is further coupled to receive the four variable voltages. Each tunable prism comprises a liquid that varies the tunable deflection angle in two dimensions in response to the four variable voltages supplied thereto, to thereby deflect the light beam.

Abstract: A lighting system, comprising: a light source (22) for generating a light source output; an optical system (24) for focusing the light source output to a beam control plane (26); a first lens system (28) for pre-shaping the light source output after the beam control plane; a first reflector (30), wherein the first lens system is adapted to direct light to the first reflector; a second reflector (32) for generating an output beam (34) from the light reflected by the first reflector; a beam control system (27) located at the beam control plane, wherein the beam control system includes a pixelated display device (27c) for providing pixelated modulation of the light passing through the display device, and wherein he first reflector and second reflector are selected from the group consisting of: the first reflector (30) is a hyperbolic mirror and the second reflector (32) is a parabolic mirror, the first reflector (30) is a hyperbolic mirror and the second reflector (32) is a hyperbolic mirror, the first reflector

Abstract: Optical systems for linear lighting, particularly linear lighting that is installed in a channel, are disclosed, as are light fixtures that use these optical systems. The optical systems have multiple optical elements, usually a first lens adapted to be positioned close to a strip of linear lighting installed in a channel, and a second lens adapted to be positioned farther from the strip of linear lighting. In some cases, the first optical element may be a diffuser. The two optical elements are optically aligned with one another such that light from the first optical element reaches the second optical element. The multiple optical elements may be adapted to physically support one another, and to engage with structure provided by the channel for securing a cover. Some optical systems may be adapted to compensate for variations in the color or intensity of the emitted light.

Abstract: An object of the present invention is to provide a backlight film that uses a wavelength conversion film used for a liquid crystal display or the like, has satisfactory durability, and is able to emit light without color unevenness. The object is achieved by including a wavelength conversion film having a wavelength conversion layer and a gas barrier film that sandwich the wavelength conversion layer; and at least one reflective layer provided on one main surface of the wavelength conversion film and causing a film thickness distribution of the reflective layer to be ±5% or less.

Abstract: A light source apparatus includes: a light source; a light source driving section; a light detection section; a temperature detection section; and a control section being configured to, when determining that detected brightness is outside a range of brightness set for detecting abnormality in the light source or the light detection section and detected temperature is within a range of temperature set for detecting the abnormality in the light source or the light detection section, cause the light source driving section to perform driving of the light source for a case of abnormality in the light detection section, and when determining that the detected brightness is outside the range of brightness and the detected temperature is outside the range of temperature, cause the light source driving section to perform driving of the light source for a case of abnormality in the light source.

Abstract: An indirect lighting structure for a vehicle roof provides indirect lighting to at least a part of a roof glass through a light guide formed along a guide rail. The indirect lighting structure includes: a guide rail configured to support a roof glass positioned on the guide rail; a light source unit positioned at one end in a longitudinal direction of the guide rail; and a light guide which is configured to be in contact with the light source unit and positioned along the guide rail, in which the light guide is configured such that at least a part of the light guide is in contact with and inserted into the guide rail so as to guide light introduced from the light source to illuminate a pattern portion.

Abstract: An illumination device including an upper casing, a transparent bottom casing, a light source module and a reflection layer is provided. The upper casing has a lower surface. The transparent bottom casing has an upper surface. The light source module is disposed on the lower surface of the upper casing. The reflection layer is extended between the upper surface of the transparent bottom casing and the lower surface of the upper casing for reflecting the light emitted by the light source module.

Abstract: A member for controlling luminous flux according to an exemplary embodiment of the present invention includes an optical path changing unit embedded in a matrix and including scattering particles scattering incident light, and an optical direction adjustment unit including a coupling surface attached to the optical path changing unit to receive the light scattered from the optical path changing unit, and a refractive surface refracting the received light and emitting the refracted light, whereby an optical diffusion performance of the member for controlling luminous flux according to an exemplary embodiment of the present invention can enhance an optical diffusion performance.

Abstract: A solid state lighting (SSL) with a solid state emitter (SSE) having thermally conductive projections extending into an air channel, and methods of making and using such SSLs. The thermally conductive projections can be fins, posts, or other structures configured to transfer heat into a fluid medium, such as air. The projections can be electrical contacts between the SSE and a power source. The air channel can be oriented generally vertically such that air in the channel warmed by the SSE flows upward through the channel.

Abstract: A light guide for use in an image reading apparatus. The light guide extends in a predetermined direction. The light guide comprises an emitting surface, through which light rays entering the light guide are emitted, and a reflecting surface configured to reflect the light rays to the emitting surface. A cross-sectional surface of the light guide, which is a sectional surface of the light guide along a plane orthogonal to the predetermined direction in which the light guide extends, has a shape including a combination of an ellipse and a parabola. The parabola on the cross-sectional surface of the light guide defines the reflecting surface. A focal point of the parabola is located on a first focal point of the ellipse that is closer to the reflecting surface.

Abstract: An interchangeable lighting assembly is disclosed which comprises an inner plate member having depending leg portions each having an aperture for receiving a fastening device, an interchangeable cladding member having an aperture that is aligned with one of the apertures of one of the depending leg portions of the inner plate member, a fastening device for securing the interchangeable cladding member to the inner plate member through the aperture of the interchangeable cladding member aligned with the aperture of the depending leg portion, and a light source assembly connected to the inner plate member and depending therefrom.

Abstract: An automated luminaire which allows for the selection of a diffuser or a hot mirror which is mounted to engage the light beam at an angle non perpendicular to the central axis of the light beam and nonparallel or not in the same plane as the diffuser. The selector is articulated in a manner to automatically engage a selector based on what other light modulators are selected to engage the light beam and to automatically oscillate or scan when there is a likelihood of damage to the hot mirror or diffuser based on how long it is engaged and/or light intensity and/or other modulators selected and or temperature sensor data in the luminaire.

Abstract: A lighting apparatus is provided with a housing having an upper assembly, a lower assembly, and a middle assembly. A lighting module is positioned within the housing in which the lighting module includes at least one light emitting diode (LED). A reflector is positioned within an outer lens of the middle portion of the housing above the lighting module. A reflector plate is positioned within the housing at approximately the same level or below the lighting module. The reflector plate is configured to reflect light emitted by the at least one LED after the light is reflected by the reflector. The outer lens is configured to refract light emitted by the at least one LED after the light has been reflected by the reflector.

Abstract: A light injection system includes a radiation source, an optical waveguide, and an optical component. The radiation source emits radiation and is oriented relative to the optical waveguide such that a first portion of radiation emitted from the radiation source couples into the optical waveguide as emitted from the radiation source and a second portion of radiation emitted from the radiation source bypasses the optical waveguide as emitted from the radiation source. The optical component redirects at least some of the second portion of radiation emitted from the radiation source that would otherwise bypass the optical waveguide and enables at least some of the redirected radiation to couple into the optical waveguide instead of bypass the optical waveguide.

Abstract: The invention relates to a reflector unit and a lighting device (1) having a plurality of light sources (4) and a reflection arrangement, with the light sources (4) being positioned in front of a reflection surface of the reflection arrangement, with the light beam from the light sources (4) being deflected by reflection to the main emission direction of the lighting device (1) via the reflection arrangement. According to the invention, a first reflection section (2) and a raised second reflection section (5) are provided, with the first and the second reflection sections being matched to one another such that a main light beam can be produced, in that the light from the light sources (4) first of all strikes the second reflection section (5), and then the first reflection section (2), and leaves the lighting device in the main emission direction.

Abstract: An optical element that may be replaceably mounted to an LED based illumination device. The optical element includes a hollow shell reflector and a plurality of annular shell elements disposed within the hollow shell reflector at different distances from the input port of the optical element. An annular shell element that is closer to the input port of the optical element has a radius that is less than the radius of an annular shell element farther from the input port.

Abstract: An optical element that may be replaceably mounted to an LED based illumination device. The optical element includes a hollow shell reflector and a plurality of annular shell elements disposed within the hollow shell reflector at different distances from the input port of the optical element. An annular shell element that is closer to the input port of the optical element has a radius that is less than the radius of an annular shell element farther from the input port.

Abstract: A light guide element, a light source module, and a display are provided. The display includes a display panel and the light source module. The light source module includes a light source and the light guide element, wherein light emitted by the light source is guided toward the display panel by the light guide element. The light guide element includes a plurality sidewalls and a bottom wall. The sidewalls surround the bottom wall and are connected with each other to form a light entering opening, a light exiting opening, and an inner reflection room. Each of the sidewalls and the bottom wall has at least one reflection surface, wherein the reflection surface faces the inner reflection room.

Abstract: A light source device having: a light source; first and second light guides extending in a first predetermined direction to guide light in the first predetermined direction and irradiate a document with the light; and a confinement portion that confines light emitted by the light source and is connected to one end of the first light guide and one end of the second light guide, in which the light confined in the confinement portion is reflected off both first and second reflection surfaces provided in the confinement portion, and thereby travels through the first and second light guides in the first predetermined direction.

Abstract: A lighting device is provided. The lighting device includes an optical reflection plate, a light holder, and at least one light source. The optical reflection plate includes a non-reflective region located in the center of the optical reflection plate, and a plurality of reflection regions surrounding the non-reflective region in sequence. The light holder is located on the non-reflective region of the optical reflection plate and includes a circle side-light concave portion. A light-emitting opening of the side-light concave portion faces to the reflection regions. The light source is located in the side-light concave portion of the light holder. When the light source emits light, the light emitted from the light source is reflected by the reflection regions.

Abstract: An optical emitter enabling conversion of light from a light source. The optical emitter includes a first conic reflector defining an aperture for receiving the light source, a second conic reflector opposite the first conic reflector for collimating light emitted by the light source, and a volumetric light conversion element between at least a portion of the first reflector and at least a portion of the second reflector. The optical emitter can also include a convex mirror adjacent the vertex of the second conic reflector, and an elliptical element adjacent the first conic reflector. The light conversion element can include phosphor dispersed in a resin to convert light from a first wavelength to light of a second, longer, wavelength, wherein converted light is emitted from the light conversion element.

Abstract: A lighting assembly utilizing a reflective body for use with a light source to uniformly disperse the light from the light source. The reflective body includes a lower array of first reflectors arranged about a central axis. Each of the first reflectors form an obtuse angle with the next adjacent first reflector. The reflective body also includes an upper array of second reflectors arranged about the central axis. Each of said second reflectors include a left face and a right face. The upper array defines obtuse angles between next adjacent second reflectors. Additionally, reflex angles are defined between the left and right faces of the second reflectors. The combination of angles evenly disperse the light supplied from the light source to provide a pleasant glow for illuminating an area below the lighting assembly without causing hot spots.

Abstract: A lighting module may include a light source; a lens arranged at a distance from the light source; and a reflector; wherein the lens is configured and arranged to have a wide-angle emission characteristic and to direct a proportion of the light incident from the light source onto the reflector, wherein the proportion is at least 30%.

Abstract: A dark field illuminator that includes: (i) a light source adapted to provide ring of light characterized by uniform intensity distribution; (ii) a collimating ring adapted to receive the ring of light and to direct collimated light beams towards an area of an inspected object such that different points within the area are illuminated by identical cones of light characterized by an incidence angle; and wherein the collimating ring and the light source are co-centric to an optical axis of the dark field illuminator.

Abstract: Embodiments of the present invention relate to a compact optical assembly which improves collimation of light produced by multiple LED light sources in a light engine. A shaped primary reflector located over the light engine reflects the light toward a larger shaped secondary reflector. The shapes of the reflectors are selected to cooperatively produce a highly collimated light beam. Color mixing may be improved by providing a plurality of facets on the reflective surfaces of at least one of the primary reflector or the secondary reflector.

Abstract: The invention provides an illumination device (1) comprising a lighting unit (2). The lighting unit (2) comprises a light source (100) and a substantially flat light guide (200), arranged to collimate light source light (111). The light guide (200) has an entrance window (210), an edge window (220), a first light guide surface (201), a second light guide surface (202), a first side edge (230) and a second side edge (240). One or more of the first light guide surface (201) and the second light guide surface (202) comprise a plurality of grooves (300). In this way, latitudinal collimation is obtained.

Abstract: A concave reflecting surface of a reflector for use in a light emitting device has micro reflector segments protruded therefrom in multiple stages and in multiple radial columns, the micro reflector segments each having a convex curved surface which is defined by a locus of a circular arc moved in parallel in a radial direction of the concave reflecting surface, and a radius of the convex curved surface, in each of the reflection regions, is set to be smaller when the convex curved surface is positioned closer to a point on which light emitted from each of the directional light sources and traveling on the light axis is incident, and is set to be larger when the convex curved surface is positioned more distant from the point.

Abstract: A motor-driven, displaceable-head floodlight unit according to one or more embodiments is described. The floodlight unit is arranged to generate a plurality of light and projection effects used in stagecraft and performances, at least several LED sources being configured as the source of light in the floodlight unit. The light emission from several LED sources is collected by at least one first mirror and deflected to a second mirror. The second mirror is arranged to collimate the light from the first mirror incident thereon and transmit the light.

Abstract: A package includes a base body having a mounting portion for mounting a light-emitting device, a frame-shaped first reflection member attached to the upper surface of the base body, an inner peripheral surface of which is shaped into a first light reflecting surface and surrounds the mounting portion, and a frame-shaped second reflection member attached to the upper surface of the base body, with a spacing secured between an inner peripheral surface of the second reflection member and an outer peripheral surface of the first reflection member, the inner peripheral surface surrounding the first reflection member and having a second light reflecting surface at a location above an upper end of the first reflection member.

Abstract: Disclosed exemplary solid state light fixtures use optical cavities to combine or integrate light from LEDs or the like. In such a fixture, the cavity is formed by a light transmissive structure having a volume, and a diffuse reflector that covers a contoured portion of the structure. A heat sink member supports a flexible circuit board so as to position the light emitters to couple light to the transmissive structure and provide effective heat dissipation. The circuit board has flexible tabs mounting the emitters. When installed in the fixture, the tabs bend and the emitters press against a sufficiently rigid periphery of the light transmissive structure. TIM may be compressed between the heat sink member and the opposite surface of each tab. Heat conductive surface pads and heat conductors through vias through the tabs conduct heat from the emitters to the heat sink member, e.g. through the TIM.

Abstract: Light having entered a light transmitting member through a predetermined point on an optical axis undergoes internal reflection in a front surface perpendicular to the optical axis, then undergoes internal reflection again in a rear surface composed of a paraboloid of revolution having a focal point at a position of plane symmetry with the predetermined point, and then exits the front surface. A mirror-finished annular region around the optical axis in the front surface has an outer peripheral edge set to be near a position where the incident angle of the light emitted from the light emitting element is equal to a critical angle, and an inner peripheral edge near a position where the light having undergone internal reflection in the front surface enters a position immediately behind the outer peripheral edge in the rear surface.

Abstract: A light source apparatus comprises reflection mirrors, first and second lamp holding sections, wherein the reflection mirrors are provided between the first and second lamp holding section, a reflection mirror support plate to which reflection mirrors are attached, a first lamp holding section support plate to which the first lamp holding section is attached, a second lamp holding section support plate to which the second lamp holding section is attached, a first fixing member which fixes the reflection mirror support plate and the first lamp holding section support plate to each other, a second fixing member which fixes the reflection mirror support plate and the second lamp holding section support plate to each other.

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 condensing and collecting optical system comprises two asymmetric reflectors. The first and second reflectors comprise a portion of an ellipsoid or paraboloid of revolution having parallel optical axis. A source of electromagnetic radiation is placed at one of the focal points of the first reflector to produce radiation that is received by the second reflector, which focuses the radiation toward a target. To achieve maximum output coupling efficiency, the second reflector has a different focal length than the first reflector such that the radiation inputted to the target has lower angle of incidence.

Abstract: A light delivery technique includes optical configurations as well as the associated methods that generate a ring beam from a linear light source. In one embodiment, a remote light source module delivers illumination light to a fundus camera and/or slit lamp. In another embodiment, an arrangement combines the use of a light pipe homogenizer and a ring beam transformer for efficiently collecting light from a substantially axially linear light source, homogenizing the collected light that lacks low angle flux relative to the optical axis, and transforming the light into a ring beam with a substantially improved low angle flux distribution. In still another embodiment, light emitted from a substantially axially linear light source is directly collected by a curved surface mirror and spatially filtered into a ring beam.

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 compact dual ellipsoidal reflector (DER) system for illuminating a target with rays of electromagnetic radiation comprises first and second molded module. The first molded module has at least a first ellipsoidal reflector section comprising an optical axis, a first focal point and a second focal point. The rays of electromagnetic radiation being directed substantially proximate to the first focal point of the first ellipsoidal reflector section and substantially converge at the second focal point of the first ellipsoidal reflector section. The second molded module has at least a second ellipsoidal reflector section comprising an optical axis, a first focal point and a second focal point.

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: An exemplary LED lamp includes a housing having an opening, a printed circuit board, at least one LED, a light reflective plate, a light reflective module and a lamp cover. The printed circuit board is positioned on a bottom of the housing. The LED is electrically connected with the printed circuit board. The light reflective plate defines at least one through hole, the LED passing through the corresponding through hole. The light reflective module includes a bottom reflective plate, at least two opposite reflective sidewalls, at least one light-shielding sheet extending at midsections from the opposing reflective sidewalls. The bottom reflective plate defines at least one first cutout, the at least one LED passing through the corresponding first cutout. The at least one light-shielding sheet defines a plurality of light holes and covers the corresponding LED. The LED lamp assembly has a uniform luminance.

Abstract: A lighting device can include at least one LED light source having at least one LED chip, the LED light source being configured to impart a certain directivity to light emitted from the LED chip in a direction of the optical axis of the light source. A first reflector can be disposed in front of the LED light source and upwards with respect to the optical axis. The first reflector can also extend forward and above the optical axis in an inclined manner from a first side to a second side so as to reflect part of light emitted from an upper part of the LED light source with respect to the optical axis. A second reflector can be disposed substantially in parallel to, and below, the first reflector. The second reflector can be configured to reflect light from the first reflector. A third reflector can be disposed in front of the LED light source and downward with respect to the optical axis.

Abstract: An illumination optical apparatus and a projection type display apparatus capable of enhancing an illumination efficiency; having an ellipsoidal mirror, a light source arranged at a first focal point of the ellipsoidal mirror, a stop arranged closer to said light source side by a predetermined distance from a second focal point of said ellipsoidal mirror, and a positive refractive collimator lens for collimating a light flux emitted from the stop to a parallel light flux. A condition (0.01<L2/L1<0.06) is satisfied where, L1 is a distance from an apex of the ellipsoidal mirror to the second focal point thereof and, L2 (the light source side is a positive distance) is a distance from the second focal point of the ellipsoidal mirror to the stop.

Abstract: An exemplary LED lamp includes a housing, a printed circuit board, at least one LED, a light reflective module and a lamp cover. The printed circuit board is positioned on a bottom of the housing. The LED electrically connects with the printed circuit board. The light reflective module includes at least one light-shielding sheet and a bottom reflective plate disposed between the printed circuit board and the light-shielding sheet. The bottom reflective plate defines at least one through hole. The LED passes through the at least one through hole correspondingly. Each light-shielding sheet defines a plurality of light holes and covers the LED correspondingly. The lamp cover is fixed on the opening of the housing. The LED lamp has a uniformity brightness.

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: A light fixture is described. The light fixture includes a socket housing and a reflector housing. The socket housing includes a socket for receipt of a lamp, and a reflector housing mounting surface. The reflector housing includes a direct reflector for providing direct light onto a target lighting area and an indirect reflector for providing indirect light onto the target lighting area. The direct reflector includes a direct reflector first end, a direct reflector second end, and a direct reflector body extended between the first end and the second end. The direct reflector body extends sufficiently far to provide a cut off angle between a lamp provided in the socket and the direct reflector second end of less than about 50°. The indirect reflector extends from the direct reflector around a circumference of the direct reflector in an amount sufficient to shield a lamp provided in the socket. A facility having a plurality of ceiling mounted light fixtures, and a reflector housing are described.

Abstract: A full cutoff luminaire having a housing with an open bottom, a vertically mounted lamp centrally located within the housing, a radial reflector surrounding a portion of the lamp and a downwardly extending optic lens having an open top enshrouding a lower portion of the lamp wherein light emitted from the luminaire does not exceed 90° above nadir.

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 light source apparatus includes a lamp, an ellipsoidal mirror collecting a part of light radiated from a light transmission plane of the lamp, and a spherical mirror collecting another part of the light radiated from a light transmission plane not collected by the ellipsoidal mirror and reflecting it on the ellipsoidal mirror, in which a reflection plane of the ellipsoidal mirror and the reflection plane of the spherical mirror are in a form of non-rotation symmetry to an optical axis connecting a focal position F1 corresponding to a source of luminescence of the lamp to a focal position F2 of the light collected by the ellipsoidal mirror respectively. The distance between the reflection plane of the spherical mirror and the source of luminescence of the lamp is shorter than the distance between the source of luminescence and the focus of the light collected by the ellipsoidal mirror, and a part of the reflection plane of the ellipsoidal mirror is formed around the optical axis.

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