Abstract: The headlight has a reflector (10) in which a light source (14) is mounted. A light ray stop (30 having a pot-shaped region (32) is associated with the light source (14) and arranged to block off a part of the light from the light source (14) so that it does not reach the reflector (10). The reflector (10) has a region (20), from which light is reflected so that it falls on the pot-shaped region (32). The pot-shaped region has openings (36) through which a portion of the light falling on this light ray stop (20) can pass into the pot-shaped region (32). Cover elements (38) are associated with these openings which prevent another part of the light from the light source in the pot-shaped region from passing out through the openings. They also reflect some of the light falling on the pot-shaped region near the openings through the openings and into the pot-shaped region.

Abstract: A motor vehicle lighting device is provided comprising a ground illumination portion configured to direct a portion of the light emitted from a light source to illuminate a ground surface area rearward from the motor vehicle and a reverse signaling portion configured to direct a portion of the light emitted from the light source to an area different than the ground illumination portion. In this manner, a rearward vehicle lighting device designed for ground illumination and reverse signaling is provided from a single lamp and more preferably, using a single light source.

Abstract: A reflective surface 10a of a reflector 1 in a vehicle lamp is formed in such a way that a free-formed surface 20 is created as a basic shape so as to satisfy light uniformity out of functional conditions and thin shape as a shape condition and that a reflective surface element 14 created so as to satisfy light diffusibility out of the functional conditions and transparency as an appearance condition is assigned to each of segments obtained by dividing the free-formed surface 20 into an array pattern. Particularly, the free-formed surface 20 or the reflective surface 10a is created so that luminous exitances M specified in a direction along the optical axis satisfy the condition of Mmax/Mmin≦6, whereby the above conditions can be suitably substantiated.

Abstract: A headlight reduced in size and ensuring sufficiently high efficiency is provided. The headlight includes a light source, a cylindrical condenser lens surrounding the light source from its periphery to transmit light incident from the light source, and a reflector surrounding the light source and the cylindrical condenser lens from their backsides to reflect the light transmitted through the cylindrical condenser lens frontward.

Abstract: A vehicular headlamp utilizing a light source bulb of the H4 type and which provides a low-beam light distribution pattern which makes it easy for the driver to drive and reduces the possibility of oncoming drivers being dazzled by glare. A light source bulb is securely supported by a reflector so that left and right upper edges of a shade are located at substantially the same height and an axis of a filament is upwardly offset from an optical axis of the reflector at a predetermined angle. A reflecting surface of the reflector is provided with a downward deflective reflection zone which downwardly deflects and reflects the light that has traveled from the filament past the right upper edge of the shade and impinged on a traveling-lane-side reflection zone.

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: A lighting device for motor-vehicle comprises a reflective element having a plurality of projecting sectors which are equi-angularly spaced from each other, located around a light source arranged at the centre of the reflective element. The projecting sectors have reflective surfaces surrounding the light source which define a theoretical secondary reflective surface which is substantially different from the primary base surface from which the sectors project. The high discontinuity created in the surface of the reflective element by the presence of the projecting sectors gives rise to a unique aesthetical effect visible both in the condition of device on and in the condition of device off, the device is provided with a transparent element which is substantially clear, i.e. with no optical prisms.

Abstract: A vehicle lamp is disclosed which includes a reflector 3 that is divided into two or more areas by predetermined lines as viewed from the front of the vehicle lamp. The two or more areas are separated by a difference of over 5 millimeter. In addition, the reflector can include a plurality of parabolic pillar shaped surfaces that gather at a central portion and can include a free-curved surface. The vehicle lamp provides an innovative appearance that can be varied to provide a plurality of possible aesthetic designs.

Abstract: A vehicle headlamp includes a reflector, a source and a lens. The headlamp is configured so that light from the source reflects from the reflector and is output from the headlamp through the lens. Concave reflector sections are formed by dividing the reflector. Each reflector section has a primary focal point and primary axis. The primary focal points of the reflector sections are coincident and the primary axes of the reflector sections are angled with respect to one another.

Abstract: The low beam filament and the high beam filament are disposed in such a positional relationship as the virtual image of the irradiated portion of the high beam filament does not produce glaring light in the low beam light distribution pattern. As a result, it is made possible to effectively utilize near 100% of light incident on the reflecting surface of a reflector and to obtain good low beam light distribution pattern and high beam light distribution pattern.

Abstract: A headlight for vehicles said a light source; a reflector which reflects a light emitted by the light source so that a horizontal dispersion is provided, the reflector having a reflection surface which has at least two facets adjoining one another in a horizontal direction and bordering in a separating line, the separating line in a central plane of the reflector which contains an optical axis having at least approximately vertical tangent, the separating line having a course which deviates from a vertical so that regions of two adjoining facets located at least approximately in a joint horizontal plane near its separating line produce images of the light source which are arranged in a vertical direction at least approximately at a same height.

Abstract: A reflecting mirror, for a vehicle headlamp, which provides a sufficient amount of light near a slant cutoff line in downward-beam light distribution, thereby improving visibility in a long-distance region and a medium-distance region. The reflecting mirror has at least a first reflecting area and a second reflecting area. For a first reflecting area (10B)—close to a horizontal reference face (x-y plane) when a reflecting face (10) is viewed from an optical axis direction—a reference curve is set in a slant reference face inclined to the horizontal reference face at an angle equal to an angle (&thgr;col) of a slant cutoff line with a horizontal line.

Abstract: A multi-chamber lamp has a lamp housing with a plurality of reflectors. A closure pane is provided on the lamp housing. An intermediate pane, located between the reflectors and the closure pane extends over an entire light emergence plane of at least one reflector. The closure pane as well as the intermediate pane are at least partially free of optical function. The intermediate pane supports a shield device for the light source associated with the at least one reflector, which is surrounded by an optics-free area. A cover apparatus completely encompasses the at least one reflector provided with the intermediate pane and covers also a peripheral rim of the intermediate pane as well as shields an interior of the lamp housing from view from the outside.

Abstract: There has been a problem that in a head lamp with a prior constitution, an utilization factor of luminous flux with respect to a light source is low and the head lamp with brightness commensurate with power consumption can be obtained.

Abstract: The reflective surface of a reflector 16 is divided through steps into a plurality of vertically elongated reflective surface elements. In each of those reflective surface elements, the light incidence section to which the output light of a light source bulb is applied is made up a convex cylindrical curved surface and a concave cylindrical curved surface which are arranged substantially in parallel with the step adjacent to the light incidence section. Accordingly, when the lamp is turned on, and the reflector is observed from the front, the light incidence sections function as follows; that is, the apex portions of the cylindrical curves surfaces look glittered as bright sections. Therefore, the reflective surface looks more sparkling.

Abstract: A headlight for a motor vehicle having a light source, a reflector having a substantially concavely curved reflection surface by which a light emitted by the light source is reflected for producing a predetermined illumination intensity distribution, the reflector having at least one further reflection surface which follows the concave reflection surface in a light outlet direction, a light-permeable member located in a beam path of the light reflected by the reflector and formed so that the light passes through the light-permeable member without being substantially influenced, the at least one further reflection surface of the reflector being subdivided at least locally by visible separating lines into several facets, at least a part of the facets being formed so that the light emitted by the light source is reflected by the at least one part of the facets into at least one lateral region in front of the vehicle.

Abstract: A motor vehicle headlight assembly includes a reflector extending along a focal line and having an open end, a light source including an elongated gas discharge tube extending within the reflector along the focal line for the light issued thereby onto the reflector to be reflected by the latter into the open end, and an at least translucent light-guiding plate spanning the open end of the reflector and operative for directing light passing through it onto an illumination area situated at a predetermined distance in front of the motor vehicle on which the headlight assembly is mounted when in use. The reflector has at least in general the configuration of a flattened cross-sectionally parabolic cylinder and consists at least in part of two opposing regions at least one of which is inclined by a predetermined angle about the focal line with respect to the position it would have assumed in a true cross-sectionally parabolic cylinder.

Abstract: A vehicular indicator lamp that provides an observer with a novel visual impression even when the point of observation is moved either horizontally or vertically while ensuring clarity of the lamp. A reflective surface of a reflector is divided in an orthogonal grid into a plurality of segments, each of which is allocated a reflective element. The reflective surface is formed as a two-dimensional wavy surface in which concave surface reflective elements and convex surface reflective elements are alternatingly repeated in each of two directions. As a result, in the case where the reflective surface of the lamp is viewed from the front, when the point of observation is moved horizontally or vertically, the brightness pattern of the reflective surface changes dynamically to accompany the movement of the point of observation, causing the observer to perceive a strong glittering sensation.

Abstract: A lamp is composed of a light source, a composite reflector consisting of a plurality of reflecting surface units, and aspheric lenses provided to correspond to the individual reflecting surface units. The composite reflector includes a first and a second reflecting surface units. Each of the first reflecting surface units is formed of a reflecting surface configuration obtained by cutting, radially around a center axis of the light source, a portion from a spheroid having a first focal point located on the center axis and adjacent the light source and a second focal point located on a line passing through the first focal point and tilted appropriately from the center axis such that the cut portion spans a range of 15° to 90° around the center axis. Each of the second reflecting surface units is composed of a second reflecting surface configuration obtained by similarly cutting a portion from a spheroid having a second focal point located external to the first reflecting surface configuration.

Abstract: A signal lamp for a vehicle is composed of a plurality of LED lamps as a light source, a reflecting surface corresponding to the light-emitting surface of the signal lamp, a housing for accommodating the LED lamps and the reflecting surface, and an outer lens disposed in opposing relation to the reflecting surface. The LED lamps are arranged along the periphery of the light-emitting surface such that the illuminating direction thereof is toward the center of the reflecting surface. The reflecting surface is partitioned into segments corresponding in number to the LED lamps. Preferably, the reflecting surface has a circular configuration. The segments into which the reflecting surface is partitioned are arranged radially around the center of the reflecting surface. In this case, the LED lamps are arranged in an annular configuration along the periphery of the reflecting surface.

Abstract: A signal lamp for vehicles has a reflector that acts to diffuse light from a light source within the lamp. The reflector is made up of multiple diffusing reflective elements having a reflecting region that reflects light emitted from the light source in a direction of an optical axis of the lamp. A lens is positioned in front of the reflector. The reflecting region of each diffusing reflective element is varied, such that an area ratio of the reflecting region for portions of the reflector with a high reflective illuminance is less than other portions having lower illuminance.

Abstract: A small and non-intrusive reflector is disclosed for use with a strobe light system for enhancing light distribution for wall mounted application, while maintaining a low current draw. The reflector comprises a “top reflective section” and a “bottom reflective section”, where each reflective section comprises three distinct reflective portions: a left reflective portion, a center reflective portion and a right reflective portion. Collectively, top section left portion and bottom section left portion provide illumination to a negative horizontal range of viewing angles, whereas top section right portion and bottom section right portion provide illumination to a positive horizontal range of viewing angles. Finally, the top section center portion and bottom section center portion provide illumination to a range of horizontal and vertical viewing angles.

Abstract: A set of left and right motor vehicle headlamps, each headlamp including a reflector associated with a light source and a closure front-glass. In accordance with the invention, the left and right headlamps are respectively adapted to generate horizontally spread left and right illumination beams, each beam having a fuzzy edge on the left and on the right, said edges being asymmetric relative to the axis of the road, the left edge of the left beam being offset angularly to the left relative to the left edge of the right beam, and the right edge of the right beam being offset angularly to the right relative to the right edge of the left beam. Applications include forming homogeneous beams with a wide spread.

Abstract: A motor vehicle light, comprising a concavely curved reflector; a light source inserted in the reflector; a cover element arranged after the light source as considered in a light outlet direction, by which the light source is at least partially covered when seen from outside on the motor vehicle light; a light-permeable disk for covering the motor vehicle light in the light outlet direction and which is free from optical profiles, the reflector being shaped so that a light emitted by the light source is reflected by the reflector so that it passes on the cover element at least substantially unaffected.

Abstract: A light reflector for use in a lighting device including a light bulb having a filament. The reflector includes a cup-shaped body having a parabolic internal reflective surface divided transversely into an inner portion surrounding the light bulb to focus light from the light bulb into a parallel light beam to produce a bright spot and an outer portion adjoining the inner portion. The outer portion is faceted to smooth blurring around the bright spot.

Abstract: Diffusing reflector elements 14s are assigned respectively to a plurality of sector segments S centering on the optical axis Ax of reflector 14; the surface geometry of each diffusing reflector element 14s is set as a convex curved surface referenced to a paraboloid of revolution P which, among a plurality of paraboloids of revolution P having different focal lengths that center on the optical axis Ax with a common focus F lying at a single point on the optical axis, passes the edge of a side a closer to the optical axis of the sector segment S to which said diffusing reflector element 14s is to be assigned on a free curved surface Cf. As a result, the diffusing reflected light from each diffusing reflector element 14s can be controlled in diffusion with reference to the direction of the optical axis Ax and, in addition, when the lighting device is lit up and viewed right from the front, the entire part of the reflective surface 14a is visible and can be seen bright although in a discrete manner.

Abstract: A motor vehicle headlamp comprises a light source of predetermined geometry, and a reflector associated with the light source. The reflector is made by a method that includes the steps of: (a) establishing a reflective base surface having a reference focus and giving a predetermined distribution of the light emitted by a light source having a given geometry and a given position with respect to the reference focus, mainly in the vertical direction, (b) in at least one zone, determining a line passing through all of the points that give the same predetermined horizontal deviation of a theoretical radiation propagated from the reference focus, (c) modifying the base surface so as to put on it, substantially along the line determined in step (b), a striation for horizontal diffusion of the light, (d) making a mould in conformity with this modified surface, and (e) moulding the reflector in this mould.

Abstract: An exterior mirror assembly for a vehicle includes a signal light that provides an advanced notification system to approaching vehicles that the driver of the vehicle intends to turn or make a lane change. The exterior mirror assembly includes a housing with a reflective element and a positioning device for adjusting the position of the reflective element in the housing, and at least one signal light positioned in the housing. The signal light includes a light source and a light conduiting member which is adapted to project a pattern of light from the housing and yet restrict light from extending into the vehicle so that a driver seated in the vehicle does not directly observe the pattern of light. The light source may be provided by a light pipe which is optically coupled to a remote light source located, for example, in the vehicle. Preferably, the pattern of light extends rearwardly, forwardly, and laterally from the vehicle.

Abstract: A lighting module for a motor vehicle headlight, in which light from a light source is received by the input end of a light guide having a plurality of oblique facets, which are reflective by total reflection and cooperating with lenses. The light guide comprises a set of transparent strips stacked together, and the module includes a reference member comprising a first portion which defines a horizontal reference plane, and a second portion which defines a vertical reference plane. The stacked transparent strips are abutted against these two portions of the reference member in a predetermined position on the longitudinal axis of the light guide, so that their facets will cooperate with the lenses to project in the emission direction images corresponding to the facets.

Abstract: There is provided a lamp comprising a light source, a horizontal double ellipsoidal reflector composed of two reflecting surface units joined horizontally in opposing relation to each other and each formed from a spheroid, and aspheric lenses. Each of the two reflecting surface units is formed by cutting, radially around the center axis of the light source, a portion from the spheroid having a first focal point located on the center axis and adjacent the light source and a second focal point located on a line passing through the first focal point and tilted appropriately from the light-source center axis such that the cut portion spans, around the center axis, a range of 5.degree. to 9.degree. in either vertical direction from a horizontal line. The aspheric lenses are provided horizontally to correspond to the respective second focal points of the reflecting surface units of the ellipsoidal reflector and converge reflected light beams from the respective reflecting surface units.

Abstract: A motor vehicle headlight comprises a light source having a given geometry, a mirror and a lens. The mirror co-operates with the source to generate a beam delimited by a cut-off at least part of which is horizontal. The source has the general shape of a cylinder having a horizontal axis perpendicular to an optical axis and a length less than the width of the mirror. At least one vertical section of the mirror has a profile such that a ray emitted tangentially by an edge of the source is reflected parallel to the optical axis and rays emitted by the rest of the source are reflected downwards relative to the optical axis. The mirror has at the height of the source a horizontal section adapted to assure a predetermined horizontal distribution of light.

Abstract: An automobile lamp comprising a light source, a shade covering the light source, a reflector having an aperture, an outer lens covering the aperture, and an inner lens arranged vertically between the shade and the outer lens, wherein the reflector has a central reflecting surface, which directs light emitted from the light source to the inner lens, a left reflecting surface, a right reflecting surface, and at least one non-reflecting surface which is at least one step between the central reflecting surface and the left or right reflecting surface, and the inner lens covers the central reflecting surface of the reflector. Light distribution patterns are formed by the inner lens, the left reflecting surface, and the right reflecting surface. Light distribution patterns of the automobile lamps are horizontally wide and have high uniformity of luminous flux density distribution.

Abstract: A lighting device (100) for an automobile has a light source (101), a reflector (102), and a convergent lens (103) positioned in front of the reflector in order to form an illuminating light beam. The reflector is of the hyperbolic type with an internal focus (F.sub.1), and an external focus (F.sub.2) positioned behind said reflector in a region of the focus of said convergent lens, the light source being placed in a region of the internal focus of said reflector so that the latter forms a virtual light source in the region of the focus of said convergent lens.

Abstract: A lamp including a light source, a petaline reflector, and aspheric lenses. The petaline reflector is formed of a plurality of reflecting surface units combined radially around the center axis of the light source. Each of the reflecting surface units is obtained by cutting, radially around the center axis, a portion from a spheroid having a first focal point located on the center axis and adjacent the light source and a second focal point located on a line passing through the first focal point and tilted appropriately from the center axis such that the cut portion spans a range of 15.degree. to 60.degree. around the center axis. The aspheric lenses are disposed to correspond to the respective second focal points of the reflecting surface units of the petaline reflector and converge reflected light beams from the respective reflecting surface units. Shades for forming a light distribution pattern are disposed at the respective near-focal points of the aspheric lenses.

Abstract: A motor vehicle headlight comprising a light source, a reflector and a cover lens. The reflector generates a pre-formed light beam such that its modification by any optical elements on the cover lens is unnecessary. The cover lens receives, from at least a substantial part of the reflector, radiation having a mean angle of incidence in a horizontal plane which varies progressively with horizontal displacement over the cover lens. The cover lens includes a set of striations for lateral deflection of the light, with each striation having an individual angular distribution law which is determined by the orientation of the light from the reflector and by the lateral spreading characteristic of the striation. The spreading characteristics of the striations are determined in such a way that the aggregate angular distribution law of the different striations has a curve which is essentially flat.

Abstract: A headlamp wherein an auxiliary reflector is arranged at at least one of portions close to above, left or right ends of a main reflector providing an effective section of a reflecting mirror and outside a range that forms a light distribution characteristic. The auxiliary reflector reflects a light in a direction adjacent to a side opposite to a side at which the auxiliary reflector is arranged relative to the light distribution characteristic defined by the main reflector. The novel constitution allows a headlamp of this type, in which a light having a relatively large tilt angle from the optical axis has been conventionally prevented by the housing of the headlamp from being radiated, to effectively radiate such a light in a desired direction and in a necessary range.

Abstract: A lighting fixture equipped with a reflex reflector, for vehicles includes a transparent outer lens, a housing, and a light source. The reflex reflector is provided in an internal surface of the housing at a location at which incident light can be reflected through the outer lens in a predetermined direction, such that a surface of the reflex reflector and the internal surface of the housing are arranged on the same plane. The reflex reflector has a rear surface thereof covered with a rear cover in order to prevent a reflecting cut surface of the reflex reflector from being covered with dust. If an ornamental plate is provided within a light body of the lighting fixture, the reflex reflector is integrally formed with the ornamental plate, or alternatively separately formed from the same. In both the cases, the surface of the reflex reflector and the internal surface of the ornamental plate are arranged on the same plane.

Abstract: A motor vehicle headlight is disclosed which has a lamp body having a open front end closed by a lens to define a lighting chamber, and a light source with a reflector mounted in the lighting chamber. Also disposed in the lighting chamber is a reflector extension of approximately tubular shape interposed between the reflector and the lens for concealing the gaps between the reflector and the lamp body. The reflector extension has a mounting fin extending upwardly therefrom which is frictionally engaged between the lamp body and the lens, thereby dispensing with fasteners. Extending downwardly from the reflector extension, another mounting fin may be screwed to either the lens or the lamp body because the screws under the reflector extension are hardly visible from outside the headlight in its use on a motor vehicle.

Abstract: A reflecting surface 22, of a reflector 16, includes a first reflecting surface region 22A which is a substantially upper half of the reflecting surface with respect to the optical axis AX of the reflector. The first reflecting surface region 22A reflects light to form a sub light flux distribution pattern P. The reflecting surface 22 also includes a second reflecting surface region 22B, which is located below the optical axis Ax of the reflector. The second reflecting surface region 22B reflects light to form a wide diffusion-distribution pattern Pw in a part of the light-distribution subpattern P near the vehicle. The wide diffusion-distribution pattern PW has a horizontal diffusion angle larger than the maximum horizontal diffusion angle of the light-distribution subpattern P.

Abstract: A vehicle lamp includes an amber light bulb covered with a cup-shaped colorless transparent cap, thus emitting an amber light beam. A colorless, transparent, plain lens is employed. Furthermore, the inner surface of the cylindrical portion of the transparent cap is formed into a plurality of side steps, and the inner surface of the front end portion of the transparent cap is shaped into a Fresnel lens, and the outer surface of the front end portion is shaped into a plurality of fisheye lenses, which makes it more difficult to see the amber light bulb. Therefore, the vehicle lamp appears deep and glittering.

Abstract: An antiglare remote light headlight for automobiles, comprising a light source, a reflector, a front lens and a notched reflecting surface, the notched reflecting surface is located above the light axis of the reflector and fixed on the reflector through an attaching support, the filament is located within the notched reflecting surface and behind the focus of reflector, and the front lens is placed in front of the reflector, characterized in that the location of the filament is determined on the basis of the relation between the boundary line of the glaring light area on a light test plane and the light reflecting plane so as to attain an antiglare effect.

Abstract: Each of divided surfaces or regions of a reflector and its adjoining divided surface are continuous with each other by a continuous surface, and a diffusion surface for diffusing light is formed at the boundary portion between the divided surface and the continuous surface. Even when the light from a bulb does not reach the continuous surface, the light, diffused by the diffusion surface, covers the region of the continuous surface, thereby preventing this region from forming a stripe-like dim illuminating portion. A gently, convex-curved surface portion is formed at the boundary portion between the divided surface and the continuous surface, thereby further enhancing the light diffusion, and also preventing the stripe-like dim illuminating portion from being formed.

Abstract: A motor vehicle headlight reflector and a headlight constructed therefrom, wherein the reflector comprises a plurality of laterally juxtaposed zones bounding transition lines with a break of slope. Each zone has a smooth reflective surface and is adapted to spread light horizontally between two limits obtained in the immediate vicinity of the transition lines. The limits of horizontal spread in each zone varies progressively with displacement along the transition line concerned. The invention also includes a method of making the motor vehicle headlight reflector.

Abstract: A vehicle lamp that looks attractive, whether the lamp is on or off, has a transparent cap attached to a reflector having a plurality of reflective surface elements. The transparent cap is attached to the reflector so as to cover the light bulb. A plurality of pillars are provided near the front end portion of the transparent cap for intercepting light emitted from the light bulb. On the front surface of these pillars are formed reflective surfaces. When the lamp is turned off, both the reflective surfaces of the reflector and the pillars glitter. When the lamp is turned on, the spaces between the pillars on the front end portion of the transparent cap shine.

Abstract: A motor vehicle headlamp has a discharge lamp, a reflector and a smooth or nearly smooth cover lens, the reflector being adapted to generate a beam below a cut-off line. At least two masks are associated with the discharge lamp, and define two shadow zones on the reflector; the reflector includes at least two reflective zones for forming portions of the beam below the cut-off line, with different amounts of sideways spreading of the light; and these zones of the reflector are separated by generally radial transition planes, at least some of which extend into the shadow zones. A particular application is to enable wide cruising beams to be produced to European standards without any optical anomalies.

Abstract: A vehicle lamp includes a lens attached to a lamp body, the lens including a curved portion, a circumferential wall-like attachment rib projecting from an inner surface of the curved portion of the lens and having an even projection height, and a sealing plate having a circumferential edge portion and a cover portion on an inner side of the circumferential edge portion for ultrasonically welding a welding portion formed in the circumferential edge portion to the attachment rib, and a reflection portion including a plurality of recursive reflection elements formed in a space defined by the lens, the attachment rib and the sealing plate, wherein a pressed portion extends from the circumferential edge portion in a direction opposite to the lens, the pressed portion being adapted to be pressed against a vibrating portion of an ultrasonic welding apparatus and formed in the sealing plate so that a forward end surface of the pressed portion is located in the same plane.

Abstract: An interchangeable headlamp reflector and light bulb unit is provided which can be used as part of various automotive headlamp assemblies. The surface of the reflector is defined mathematically by considering the optical path differences between a ray of light from a light source and a ray of light from a vertical cylindrical axis. The reflector is made of a low number of individual segments that each define a certain portion of the resulting beam of light. Each segment has light rays that extend parallel to the ground and diverge horizontally, thus minimizing possible hot spots on the lens of the reflector assembly.

Abstract: A projector type lamp of the present invention has a projection lens and a reflector, wherein the projection lens comprises a cylindrical lens portion which forms a center portion of the projection lens and whose vertical cross section has a curve when the projector type lamp is installed and aspherical lens portions which are halves of an aspherical lens and formed continuous to the respective right and left end portions of the cylindrical lens portion. The reflector is divided into four parts located in upper and lower sides and right and left sides thereof; an upper reflection surface, a lower reflection surface, a right reflection surface, and a left reflection surface, the four reflection surfaces being formed as curved surfaces on the basis of oval surfaces and combined together.

Abstract: A reflector for a headlamp is divided into zones depending on the sizes of the light source images produced by the various parts of the reflector. Those parts of the reflector that provide smaller image sizes are used to supply light to the higher intensity parts of the road pattern. This allows greater control over glare and is particularly useful for headlamps having high intensity discharge as a light source. In one embodiment, a larger reflector is trimmed to be smaller and yet to retain portions that provide the small light source images.

Abstract: A vehicle headlamp comprises: a discharge bulb; and a reflector having a reflecting surface including a plurality of reflecting surface elements to reflect the output light of the discharge bulb forwardly, wherein an sub light distribution pattern having an oblique cut line and a horizontal cut light is formed by controlling light reflected from the reflecting surface elements. Of the plurality of reflecting surface elements, oblique cut line forming reflecting surface elements, and horizontal cut line forming reflecting surface elements extend above the lines of intersection between the reflecting surface and an inclined surface which passes through the optical axis of the reflector and has an angle of elevation of 15.degree..