Abstract: A reflector assembly is provided for efficiently collecting and forming the electromagnetic radiation from a radiation source into a desired beam pattern. The reflector assembly uses a smaller non-symmetrical generally convex reflector and a larger non-symmetrical generally concave reflector. The generally convex reflector intercepts a large fraction of light emitted by the source that would otherwise escape without interacting with the assembly and redirects this light onto the generally concave reflector for eventual inclusion in the beam.

Abstract: A conical deflector receives light from a source through an opening at the narrow end of the cone. In one embodiment, an optical fiber bundle supplies light directly into the cone. In another embodiment, the conical deflector receives light via an optical integrating cavity. A substantial portion of the inner surface of the cones has a specular reflectivity. The entire surface may be uniformly specular (e.g., highly specular). Alternatively, one or more sections of the inner walls of the cone may have a diffuse reflectivity or a different degree of specular reflectivity (e.g., quasi-specular). The deflector is dimensioned relative to a narrow, desired field of view and the light source to deflect light that would otherwise pass out of the desired field of view, so as to efficiently illuminate the desired field of view. The conical deflector provides a substantially uniform light intensity distribution over the desired field of view.

Abstract: A surgical lighthead having a stacked elliptical reflector (20) directs light from a lamp (10) to an illumination zone (Y) without the need for a refractor to redirect the reflected light. The reflector is formed of at least three annular reflector segments (22, 24, 26) stacked on top of each other to form a continuous reflector surface. Each of the reflector segments has a longitudinal cross section of a different conical shape such as elliptical or parabolic for directing the light to a different portion of the illumination plane. The stacked elliptical reflector provides the benefits of reduction of the image of the filament in the light field and reduction of shadowing due to objects passing between the lighthead and the illumination plane.

Abstract: The headlight has a light source (12) which is mounted in a main reflector (10) by which a convergent light beam is reflected, which passes through a lens (16). An additional reflector (22) is arranged surrounding the main reflector (10) between the main reflector (10) and the lens (16), by which light not captured by the main reflector (10) is reflected as an additional light beam with horizontal scattering. The light beam passing through the lens (16) forms a low beam, by which a predetermined low beam light distribution is provided with an upper light-dark boundary. The additional light beam produces an additional uniform light distribution, which overlaps the low-beam light distribution. The headlight illuminates a larger surface than the surface of the lens (16) because of the additional reflector (22) surrounding the main reflector (10) and the lens (16) so that it causes no glare or blinding.

Abstract: A lighting apparatus comprises a circular fluorescent lamp having inner and outer circular portions arranged coaxially and having outer diameters different each other, the inner circular portion having an outer meter of 285 mm to 310 mm and comprising a first arc tube having a tube diameter of 15 mm to 21 mm and the outer circular portion having an outer diameter of 360 to 390 mm comprising a second arc tube having a tube diameter of 15 to 21 mm. The lighting apparatus further comprises an apparatus body to which the circular fluorescent lamp is assembled. The apparatus body is provided with light reflection member adapted to reflect a light from the fluorescent lamp means.

Abstract: Light fitting (1) having an in particular small-volume lamp (2) and having a main reflector (5) which is preferably set up for the radiation of a narrow bundle of light, whereby in at least on part region of the lateral periphery of the main reflector (5) there is arranged an auxiliary reflector (31), whereby the main reflector (5) is of transparent material and is coated on the outside or on the inside with a reflection layer (23), whereby the auxiliary reflector (31) is arranged outwardly of the main reflector (5), and whereby in the region of the auxiliary reflector (31) no reflection layer (23) is provided on the main reflector (5) (window 34).

Abstract: An optical system operable to focus an annular beam of light onto a spot 16 comprises a paraboloidal reflector 10 with a lamp 12 at its focus, a coaxial annular convex lens 13 and a coaxial internally silvered conical mirror 15. A parallel beam of light formed by reflection by the reflector 10 of light from the lamp 12, if formed into a convergent annular beam by the lens 13 and reflected by the mirror 15 which is located between the lens 13 and its focus so that it converges to the spot 16.

Abstract: This lighting apparatus consists of an elongated double bulb mounted to a flash unit and extending through two reflector devices. The first of these reflectors is conical and upwardly directed and the second of these reflectors is curved and forwardly directed. The extended bulb comprises a pair of short bulbs joined by a connector forming an electrical and mechanical connection.

Abstract: A reflector assembly is provided for efficiently collecting and forming the electromagnetic radiation from a radiation source into a desired beam pattern. The reflector assembly uses a smaller non-symmetrical generally convex reflector and a larger non-symmetrical generally concave reflector. The generally convex reflector intercepts a large fraction of light emitted by the source that would otherwise escape without interacting with the assembly and redirects this light onto the generally concave reflector for eventual inclusion in the beam.

Abstract: A retrofit recessed compact fluorescent lamp (CFL) system that delivers quality aesthetics, glare control, and high efficiency light output. The system comprises a reflector unit adapted to be installed into an existing light fixture to provide an improved environment for distribution of light from a CFL. The system is compatible with a range of existing light fixture heights and styles.

Abstract: To form a reflection surface, a free curved surface conformed to a configuration of a car body is set for a fundamental surface of a reflection surface. A group of paraboloids of revolution having different focal distances are set, thereby to determine a group of closed curves as the lines of intersection of the fundamental surface and the group of paraboloids of revolution. Respective paraboloids of revolution are partially allotted to a portion between each pair of the adjacent closed curves of the closed curve group. As a result, a number of reflection steps arranged in multiple loops are formed in a state that the central part of the looped reflection steps is offset from the principal optical axis of the reflection mirror.

Abstract: The present invention is directed toward a light concentration and collimation device including a tapered body concentrator and a curved, preferably parabolic, reflective collimator combined in a unit such that the apex of the tapered body extends into the reflective collimator through its apex. The concentrator is preferably hollow with a reflective inner surface to funnel light from the base to the apex where an aperture allows the concentrated light to enter the collimator proximate to its focus. The light is then reflected from the inner surface of the collimator to form a beam of collimated light. The concentration and collimation device is particularly useful in visual display apparatus and may be combined with a spectral peak light source and a spectral distributor to produce individual collimated beams of light at specific wavelengths.

Abstract: Disclosed herein is a reflector system for a lighting fixture having a illumination source surrounded by an envelope. The reflector system includes a first reflector surrounding the illumination source. The reflector system also includes a second reflector which is non-contiguous with the first reflector and which surrounds the illumination source. The illumination source creates light rays which are reflected by the first and second reflectors. The first reflector directs light rays toward the center line of the fixture. However, the reflected rays despite being so reflected do not substantially intersect the envelope. The reflected light rays from the second reflector being directed so that they diverge from the center line of the fixture avoiding intersection with the semi-transparent envelope.

Abstract: A dual reflector lighting system having an adjusting assembly for independently adjusting an inner reflector and an outer reflector relative to a gaseous discharge lamp. The lighting system includes a housing having a ballast assembly mounted therein. An elongated tubular adjusting member has one end thereof connected to the bottom of the housing. A lamp socket for receiving a gaseous discharge lamp is mounted to the other end of the adjusting member. The lamp socket is electrically connected to the ballast assembly. The system includes both an outer reflector and an inner reflector mounted coaxially about the gaseous discharge lamp. The outer reflector is mounted to the tubular adjusting member for movement relative thereto to adjust the outer reflector relative to the gaseous discharge lamp. The inner reflector is connected to the adjusting member for adjusting the inner reflector relative to the gaseous discharge lamp.

Abstract: To form a reflection surface, a free curved surface conformed to a configuration of a car body is set for a fundamental surface of a reflection surface. A group of paraboloids of revolution having different focal distances are set, thereby to determine a group of closed curves as the lines of intersection of the fundamental surface and the group of paraboloids of revolution. The respective paraboloids of revolution are partially allotted to a portion between each pair of the adjacent closed curves of the closed curve group, whereby a plural number of reflection steps are formed. The reflection steps are arranged about the central parts in multiple loops, and the central parts are offset from the principal optical axis of the reflection mirror.

Abstract: A lamp matrix display includes a vertical planar array of light sources arranged in rows and columns and a plurality of reflectors positioned about corresponding light sources and having reflector surfaces for directing the light emitted from the light source in a forward direction. The reflective surface of at least one of the reflectors includes multiple parabolic reflective surfaces having offset focal points. At least one lens is mounted in front of the reflectors. The lens may be a single lens having an inner flat surface disposed adjacent an outer edge of each reflector surface and an outer prismatic surface having vertical prisms to horizontally spread the light from the planar array of light sources. Further, the plurality of reflectors may be structurally supported about corresponding light sources by a matrix framework and the matrix framework may include a plurality of air vents.

Abstract: An optical system operable to focus an annular beam of light onto a spot 16 comprises a paraboloidal reflector 10 with a lamp 12 at its focus, a coaxial annular convex lens 13 and a coaxial internally silvered conical mirror 15. A parallel beam of light formed by reflection by the reflector 10 of light from the lamp 12, is formed into a convergent annular beam by the lens 13 and reflected by the mirror 15 which is located between the lens 13 and its focus so that it converges to the spot 16.

Abstract: The optical receiving body for at least one LED has an optical member with a receiving chamber for receiving the at least one LED. The LED emits light in a main direction of light emission. The receiving chamber has an inner wall with a parabolic wall section. The parabolic wall section is a first reflective surface for light beams emitted by the at least one LED. The exterior surface of the optical member is provided with at least one second reflective surface.

Abstract: A fog lamp or the like having a lens disposed in front of a reflector and having portions inclined right and left, which lamp makes effective use of light reflected from the reflector and also has reduced regenerative action in an outer end portion of the lens. The reflector has a left reflecting surface area and a right reflecting surface area with a perpendicular surface containing the optical axis of the reflector as the boundary thereof. The left reflecting surface area is formed as a paraboloid of revolution, while the right reflecting surface area is formed as a laterally diffusing curved surface which reflects incident light from the light source in such a manner that the more distant a reflecting point is from the optical axis in the lateral direction, the larger a reflection angle is with respect to the optical axis.

Abstract: A paraboloidal effective reflecting surface of a reflector is divided into an upper effective reflecting surface for forming a preset pattern of the low beam and a lower effective reflecting surface for forming a preset pattern for supplementing the pattern. First shades for forming clear cutting lines of the low beams is disposed close to an arc tube as a light source. The glare caused by the reflection of light on the upper effective reflecting surface is reduced. The resultant clear cutting lines are sharp. The second shades, which are provided outside the first shades, cut the light beams that pass above the first shades and direct to the partition lines (stepped parts). As a result, no glare is caused by the reflection of light at the partition lines.

Abstract: The invention concerns a lighting system for spotlights, for automobile headlights, for medical and industrial spotlights. It consists of the light source (1), particularly the halogen light bulb, auxiliary mirror (2), the main mirror (3), consisting of a system of concave spherical mirrors (31), and a raster lens (4). All of these elements lie on the main optical axis (0). If a system of condensers (5) and an objective (7) is added to the basic part, the system can be used for cinema projectors and enlarging apparatuses.

Abstract: The luminaire has a concave reflector (1) built up from plane facets (4). The facets are arranged in rows (7) which extend between first parallel planes (8) towards the light emission window (3). The facets are also bounded by second parallel planes (9). The first and the second parallel planes extend parallel to the axis (2) of the reflector, but transversely to one another. A lamp holder (30) is present for holding an electric light source (31') in a plane transverse to the plane of symmetry (6) of the reflector. The luminaire is suitable for concentrating the light generated by the light source into a comparatively wide beam and for illuminating a field from a small distance with a high degree of homogeneity.

Abstract: A device for beam machining comprises an extended radiation source (1) and a concentrating reflector (2) whose reflecting surface has the form of a surface of revolution made up of several successively-joined segments (3). The shape of the reflector generating surface on any segment except the initial one located near the apex M of the reflector (2) and the boundaries between the joined segments are defined by a system of equiations. The initial segment of the profile of the reflector (2) extending from its apex M to the profile points R.sub.1, z.sub.1 has the shape of a segment of the curve of the 2nd order. Installed on the end of the concentrating reflector is a pressuretight protective transparent partition (4) whose cross-sectional profile is capable of ensuring additional focusing of preset radiation fractions of the linear source (1) in the focal point F.

Abstract: A dual reflector lighting system having a housing, a ballast and a lamp socket connected to receive a gaseous discharge or high intensity discharge (HID) lamp. An outer reflector is mounted to the housing to reflect a portion of light from the lamp. An inner or auxiliary reflector is mounted coaxially with the lamp to reflect a substantial amount of light from the lamp downwardly. The auxiliary reflector is preferably adjustable relative to the lamp. The invention also covers a dual reflector assembly, including an outer reflector and an inner reflector, adjustable relative to each other which is adapted to be mounted to a HID fixture. The invention also covers an auxiliary reflector having a predetermined size and shape adapted to fit within an outer reflector of a HID fixture and preferably includes facilities for adjusting the auxiliary reflector relative to the outer reflector.

Abstract: The luminaire has a concave reflector (1) built up from plane facets (4). The facets are arranged in rows (7) which extend between first parallel planes (8) towards the light emission window (3). The facets are also bounded by second parallel planes (9). The first and the second parallel planes extend parallel to the axis (2) of the reflector, but transversely to one another. A lamp holder is (30) 204 present for holding an electric light source (31') in a plane transverse to the plane of symmetry (6) of the reflector. The luminaire is suitable for concentrating the light generated by the light source into a comparatively wide beam and for illuminating a field from a small distance with a high degree of homogeneity.

Abstract: A quartz halogen outdoor floodlight assembly, having an improved lamp, reflector, and housing therefor for increased adjustability and overall performance. The housing comprises a two component unit, having upper and lower separable housing members, interconnected through a quarter turn fastening system comprising at least one key extending from the lower housing member, a receiving keyway formed in the upper housing member, and a camming ramp formed internally in the upper housing member. A lens in secured to the face of the upper housing member by a sealing adhesive, which simultaneously retains a reflector within the upper housing. A lamp operatively secured within a socket disposed in the lower housing member is operatively positioned in the reflector upon assembly. The lamp preferably includes an internal reflector which aligns with the external reflector to increase longitudinal light output.

Abstract: A tail light assembly for an automotive vehicle has a housing provided with a back panel and a translucent cover secured to and cooperating with the back panel in defining a tail light chamber. A row of light bulbs is mounted in the chamber in spaced apart relation. A reflector is secured to the back panel behind the light bulbs. The reflector is of the Fresnel-type having annular reflector segments encircling each bulb and shaped to reflect the rays of light from the bulbs along substantially parallel paths. The reflector is in the form of a substantially flat plate having an edge along the row of light bulbs which is substantially straight or only slightly curved and visually perceptible through the translucent cover when the light bulbs are illuminated. Electrical circuitry for the light bulbs is disposed within the housing sandwiched between the back panel of the housing and the reflector plate. Preferably, the circuitry is disposed in a recess in the back panel.

Abstract: The xyz orthogonal coordinate system is set so that the x-axis coincides with the optical axis of a reflecting surface. A fundamental surface has a reference point on the x-axis and a reference parabola included in a plane inclined, in a generalized form, from the xy-plane and having a vertex on the origin of the coordinate system and a focus on the x-axis in the rear of the reference point. The fundamental surface is a collection of intersecting lines each obtained by cutting an imaginary paraboloid of revolution having an axis extending in parallel with a ray vector direction taken by a reflected ray after being emitted from the reference point and then reflected at a reflecting point on a parabola that is an orthogonal projection of the reference parabola onto the xy-plane, passing through the reflecting point, and having a focus at the reference point by a plane in parallel with the z-axis and including the ray vector.

Abstract: A light collector which includes a light pipe having a face with a center and a diameter. The light pipe also has a predetermined acceptance angle. The light source is located a predetermined distance from the light pipe positioned on a line perpendicular to the center of the face of the light pipe. A concave surface defined by a plurality of ellipsoidal sections having a common first focus and a common second focus is used to reflect light from the light source to the light pipe. The ellipsoidal section have decreasing eccentricities with increasing object angle along the concave surface. The light source is located substantially at the first focus of the plurality of ellipsoidal sections and the center of the face of the light pipe is located substantially at the second focus. The surface has an eccentricity such that light rays emitted from the light source reflected by the surface to the light pipe do not exceed the acceptance angle of the light pipe.

Abstract: An arc lamp embodiment of the present invention comprises a triplet set of annular reflectors that gather light from an arc created between an anode and a cathode into essentially parallel beams that exit along the longitudinal axis of the generally cylindrical lamp through a sapphire window. A first of the three reflectors has a concave parabolic shape that reflects light out along the lamp axis in one bounce. A second of the three reflectors has a concave elliptical shape with a rear projecting focus and is back to back with the first reflector such that the open bowls of the reflectors face in opposite directions along the axis of the lamp. A third of the three reflectors has a convex parabolic shape that receives light bounced from the second reflector and gives it a second bounce out through an opening in the first reflector and then through the window, parallel to the lamp axis.

Abstract: A light source apparatus for directing light from a light source into a plurality of optical fibers. The light source apparatus comprises a case which has an end, and the optical fibers are disposed at each end thereof and which encloses the light source. The case has on its inner wall a first group of ellipsoidal mirrors and a second group of ellipsoidal mirrors disposed symmetrically with respect to the light source. The light emitted from the light source is reflected by the first and second groups of ellipsoidal mirrors so as to be condensed on the end surfaces of the optical fibers to be outputted from the other end surfaces of the optical fibers. This arrangement can simultaneously offer a plurality of illumination sources and improve the efficiency of light condensation on the end surfaces of the optical fibers.

Abstract: A lighting fixture for overhead mounting to produce a generally-rectangular, outwardly and downwardly directed light illumination over a broad areal expanse. The fixture includes a pair of back-to-back arranged reflectors depending from a supporting overhead housing and defining arcuate, generally-parabolic sections flaring outwardly horizontally of one another from opposite sides of a lamp of the fixture. A refractor of polymeric organic composition overlying and protectively capping the lamp and the reflectors diffuses, distributes and directs illumination from the lamp, from the parabolic reflectors and from a reflector plate located above the reflectors to provide an expansive, essentially rectangular-beam light pattern of uniform illumination. Physically faceted upper sections constituting flattened areas of the parabolic reflectors enhance the distribution of light to ensure more even illumination patterns and eliminate "dark" zones.

Abstract: A molded plastic figure which includes an elongated channel-shaped member having a bight portion intermediate two legs. A plurality of light concentrators are longitudinally spaced apart along the bight at predetermined intervals with each light concentrator having a frustoconical plastic body with an interior surface defining an axially extending opening. The interior surface of each concentrator defines a plurality of transparent vertically disposed cylindrical segments of increasing diameters. A halo of light appears at the exterior surface of the bight portion around each axially extending opening of each concentrator having a lighted bulb therein.

Abstract: A reflector for radiation disseminated by a radiation source is of a shape with which the reflector curve of intersection in a plane including an axis (A) of the reflector and the radiation source comprises segments (S1-A1, A2-B2) of different conics whose merging is edge-free. These conic segments are joined directly and the tangents at the point of contact (A1,A2) of two joined conic segments are alike. A method of generating such a reflector is indicated as well.

Abstract: A reflector for a vehicular headlamp in which glare formed by light reflected from a stepped part at the boundary of the adjacent segments constituting a reflector is reduced. Of the distribution control segmental areas on the reflecting surface, a first reflecting area consisting of an aggregation of hyperbolic paraboloid segments forms a pattern widely diffused in the horizontal direction. Second reflecting areas each consisting of elliptic paraboloid segments form a pattern contributing to the formation of the luminous-intensity center of a distribution pattern. A third reflecting area consisting of an aggregation of paraboloid-of-revolution segments forms a pattern contributing to the formation of a cut line tilted a given angle with respect to the horizontal line in the distribution pattern of a passing beam. The focal distance of the reference surface for the paraboloid-of-revolution surface changes for each segment.

Abstract: An apparatus includes a reflective surface for high efficiency collection, transmission and emission of light. Light collected by an ellipsoidal and hyperboloidal portion of the reflective surface is directed into a light guide. Additionally, a paraboloidal portion may be added and used in combination with a lens element to distribute the light reflected by the reflective surface in a beam pattern. When used as an emitter lens profile is smaller than the overall diameter of the reflective surface. When used as a collector, the reflective surface receives and concentrates light onto the end of a light pipe.

Abstract: A vehicular warning light has multiple segments of concave parabolic reflectors assembled for cooperative spreading of the light emitted from a single electric lamp to form an elongated wide angle beam of light in a horizontal plane for alerting the neighborhood to the presence and movement of the emergency vehicle. The axis of revolution of each parabolic reflector is assembled at a differing azimuth angle within the common horizontal plane and the focal points and focal planes of the respective reflectors are dispersed. The equivalent center point of the single light source is therefore defocused relative to at least some of the reflectors. The axis of the elongated light source is centered on the common horizontal plane and is parallel to the fluted light cover lens which is contoured for efficiency in light transmission from the multiple reflectors and for additional spreading and luminous uniformity.

Abstract: A recessed illuminating apparatus has a fluorescent lamp horizontally arranged in a cylindrical body, a first reflecting plate having a wave shape is mounted on the body, and a second reflecting plate is mounted by a plurality of supporting members in an open portion at the lower portion of the body, whereby the reflecting efficiency is effectively increased. A plurality of sliding holes are formed in the side wall of the body, and a respective fastening member is inserted into each sliding hole and secures the body when the body is inserted into a recessed hole in a ceiling.

Abstract: A headlight for a motor vehicle comprises a gas discharge lamp as a light source emitting visible light and light in UV-wavelength region, a reflector having a first region which reflects the light for forming a low beam and a second region which reflects an additional light beam illuminating a region located beyond a region illuminated by the high beam, a filter arranged in a path of the additional light beam and at least partially absorbing the visible light and at least partially permeable for light in UV-wavelength region. The filter is formed by a coating which covers the second reflector region and is composed of a filtering material.

Abstract: The luminaire for providing a primary (10) and a secondary light beam (14) comprises reflector means (9) and a lamp holder (7) within a housing (1) having a window (2) through which the primary beam passes. Remote from the window (2), the reflector means are provided with an opening (11) for a secondary beam (14). A side wall (3) of the housing (1) has a window through which the secondary beam (14) is reflected to the outside by a reflector (15). The window (13) is provided with a refractor (12) to spread the secondary beam (14). The luminaire has a color filter (11) in the path of the secondary beam and provides an even appearance of a panel illuminated by that beam.

Abstract: A reflector includes a plurality of cylindrical bands having reflective outer surfaces and arranged about a common axis. The bands are sized and spaced such that, when mounted in front of a convergent beam spotlight, they prevent the rays of light from converging at a point so as to generate an intense heat which could damage a filter material, for example.

Abstract: The headlight for a motor vehicle operable to produce a high-beam light distribution and a low-beam light distribution, has a reflector divided into an upper sector, a lower sector, a right sector and a left sector; an incandescent lamp with two axially-extending filaments mounted in the reflector, the filaments being spaced from each other and spaced approximately equally from the reflector peak; and a glass pane over a light aperture of the reflector. The upper sector and lower sector of the reflector are each shaped like a paraboloid-ellipsoid and the left sector and right sector are each parabolic. One filament is arranged along or close to and below the optic axis of the reflector to produce a high-beam light distribution when energized in operation and the other filament is arranged above the optic axis and to the right in relation to an issuing light beam to produce a low-beam light distribution in operation without additional optic devices in the glass pane covering the aperture.

Abstract: A strobe unit in which a reflecting mirror is located behind a light source. The strobe unit includes an imaginary semielliptical reflecting mirror having a major axis located on an axis of illumination that passes through the center of the light source. Imaginary quarter-elliptical reflecting mirrors are formed by splitting the imaginary semi-elliptical reflecting mirror along the major axis into two mirror elements which are spaced a predetermined distance from one another in a direction perpendicular to the major axis. The reflecting mirror is defined by modified quarter-elliptical reflecting mirrors which are symmetrical in shape with respect to the axis of illumination and have a continuous smooth reflecting surface that extends between open ends of the imaginary quarter-elliptical reflecting mirrors, and ends which are adjacent to the light source and located between the imaginary semi-elliptical reflecting mirror and quarter-elliptical reflecting mirrors.

Abstract: An operating theatre lamp with a main reflector (13) which illuminates the area of the operation (11) with a convergent main light beam (12) and an auxiliary reflector (15) can be arranged inside the main reflector to deflect a part of the used light beam (16) at a steeper angle to the site of the operation (11).

Abstract: A motor vehicle headlamp having an improved mounting structure of an extension reflector provided between the front lens and the reflector of the headlamp. An extension reflector, formed separate from the lamp body, is provided between the reflector and the front lens. The front end of the extension reflector is held adajcent to or in contact with the inner surface of the front lens to minimize the gap between the extension reflector and the front lens, and the rear end of the extension reflector is spaced from the reflector so that the extension reflector cannot interfere with the opening end portion of the reflector during the aiming operation of the reflector.

Abstract: A circular light emitting filament is positioned adjacent an annular light blocking lip extending from a bowl-shaped reflector. A substantially conical reflector portion extends from the cancer of the reflector and has an apex coincident with the lamp projection axis. The result is that all of the light is reflected before being projected from the lamp and good light intensity uniformity is attained at the illuminated scene.

Abstract: Lighting device comprising a lighting bulb arranged inside a reflector produced from a transparent material and possessing a selective reflecting surface (4) capable of reflecting the visible radiation coming from the bulb (2), while allowing the heat radiation to pass through it, while on the outside of this reflector there is a reflecting surface (6, 8) for the heat radiation passing through the reflector (1), the device being characterized in that the reflecting surface (8) for the heat radiation is formed on a supporting piece arranged outside the reflector.

Abstract: An automotive headlamp which cuts off ultraviolet rays generated from a discharge bulb light source, even in the case where the front lens is broken. A reflector is provided having a bulb insertion hole formed in a rear portion thereof, and a socket portion supporting a discharge lamp bulb is attached to the reflector at the bulb insertion hole. A direct-ray shade for shielding direct rays of light is disposed in front of the lamp. An ultraviolet-shielding layer is formed on a front surface of the reflector.

Abstract: An automotive headlamp in which a bulb is mounted in such a manner that its filament is positioned in the vicinity of the focus of a main reflector, and a sub-reflector for reflecting, in a predetermined forward direction, direct rays of light emitted slantingly forward from the bulb is provided in front of the bulb. The sub-reflector is supported by an attaching portion formed on a back surface of the sub-reflector and attached to the reflector. The main reflector and the sub-reflector have different focal lengths.

Abstract: A projector type headlamp in which an extension is firmly and positively installed without the use of adhesive. The headlamp includes a lamp body, a front lens covering the front opening of the lamp body, an elliptical mirror arranged inside the lamp body, a light bulb disposed at the first focal point of the elliptical mirror, a condenser lens whose focal point is set substantially at the second focal point of the elliptical mirror, and an extension placed around the condenser lens. The extension includes an elastic engaging piece and a plurality of screw mounting pieces. The elastic engaging piece is fixedly engaged with an engaging member formed in the inner surface of the lamp body, and the screw mounting pieces are fixedly secured to fixing portions formed in the inner surface of the lamp body with screws.