Abstract: A backlight module includes a light guide plate and a plurality of light-emitting elements. The light guide plate includes a light-incident surface, an effective light-exiting region, a transition region located between the light-incident surface and the effective light-exiting region, and a light-blocking opening disposed in the transition region. The light-emitting elements are disposed at the light-incident surface and emit light toward the effective light-exiting region. The light-blocking opening is located between a plurality of light-emitting regions formed in the transition region by the plurality of light-emitting elements respectively.

Abstract: A lamp is provided that includes a light source (1101) including at least one light emitting point (S0); and a light receiving device located between the light source (1101) and the optical path of a collimating optical element (1104, 3104), the light receiving device at least includes at least two light guides (1102, 1103, 3302), for respectively collecting light beams (1301, 1303, 3301, 3303) emitted at different angles from the light emitting point (S0) of the light source (1101), and respectively directing the collected light beams (1301, 1303, 3301, 3303) to the collimating optical element (1104, 3104) in a reflective or refractive manner, after which the light beams forming parallel light after the collimation of the collimating optical element (1104, 3104); and further includes a mirror array (1105, 3105) for reflecting the parallel light to form a reflected light spot array.

Abstract: A lighting device for a motor vehicle has a laser light source for producing laser light and a converting unit having a reflective converting layer, at which laser light originating from the laser light source is directed, during operation of the lighting device, such that a white light source is produced at the converting layer. A reflector is provided, which has an elliptical reflection surface, which corresponds to a portion of an ellipsoid containing a vertex of the ellipsoid. The reflector is shaped and arranged such that a first focal point of the ellipsoid lies within the white light source and the white light source is optically imaged in the form of a real intermediate image, which includes a second focal point of the ellipsoid, by way of the reflector. The lighting device also has a secondary optical unit, by which a light distribution in the environment of the motor vehicle is produced from the real intermediate image.

Abstract: A snow plow headlamp comprises a housing adapted to be mounted to a frame member of a snow plow assembly, at least a first forwardly directed LED mounted in the housing between opposite ends of the housing and configured to illuminate ahead of a vehicle to which the snow plow assembly is mounted, a second forwardly directed LED mounted in the housing adjacent one of the ends of the housing, a reflector mounted in the housing on a side of the second LED opposite the one end of the housing and configured to reflect light from the second LED to illuminate to a side of the vehicle to which the snow plow assembly is mounted, and a transparent cover mounted to the housing.

Abstract: The present invention relates to different embodiments of lighting fixtures, such as high bay lighting fixtures, comprising one or more improved features. Some of these features include the direct mounting of emitters on a heat sink and/or the use of a template-like board for providing an electrical connection between emitters. These features can improve heat dissipation from the emitters and simplify fabrication. In other embodiments, expensive lens optics of prior art SSL fixtures can be replaced with a flat lens and reflector in order to produce a fixture having a satisfactory spacing criterion.

Abstract: A medical device including a patient support and a radiant heater positioned above the patient support is disclosed. The radiant heater includes a reflector that partially surrounds a heating element. The reflector includes a plurality of layers of customized facets to direct radiant energy emitted by the heating element toward a predefined region of the patient support to maintain the predefined region at a predetermined temperature.

Abstract: The present invention relates to different embodiments of lighting fixtures, such as high bay lighting fixtures, comprising improved features. One of these features can be a driver box placement that is displaced from the center of the fixture. In one such embodiment, the driver box can be mounted such that no portion is over the emitters. Another improved features is a heat sink with branching spokes. As they move away from the center of the heat sink, each of the spokes can branch into multiple spokes, which can improve conductive thermal dissipation. Empty spaces can be left between the spokes to improve convective thermal dissipation.

Abstract: Provided is a light source device including: at least one light source unit (110) that emits substantially parallel light in a predetermined wavelength band; and a light guide unit (120, 130) that guides the light from the light source unit (110) toward a light collection spot (143). The light from the light source unit (110) is sequentially reflected by a concave mirror (121) and a convex mirror (122) and is guided toward the light collection spot (143) in the light guide unit (120, 130).

Abstract: Aluminum high bay lighting fixtures a primary housing; at least one secondary housing partially surrounding a primary housing; a plurality of light emitting elements in thermal contact with the primary housing; a heat spreader plate in thermal contact with the light emitting elements and the primary and secondary housings. At least one of the primary and secondary housings include openings to help dissipate heat from the light source and/or allow at least some of the light from the light emitting elements to be outputted in a direction opposite the main light emitting direction. The shortest distance from a distal end of the primary housing to the light sources is greater than the shortest distance from a distal end of the secondary housing to the light sources.

Abstract: A backlight unit includes an LED, a light guide plate, a light collecting portion, an opposite end portion, and a total reflection regulator. The light guide plate includes a light entering end surface opposed to the LED and a light exiting surface that is one of plate surfaces. The light collecting portion includes light collecting pieces extending on the light exiting surface in a normal direction to the light entering end surface and arrayed in an orthogonal direction perpendicular to the normal direction. The opposite end portion is on an opposite side from the light entering end surface. A section of the opposite end portion includes a curved end surface. The total reflection regulator is disposed on at least a portion of the curved end surface and configured to regulate the amount of light in the opposite end portion to be totally reflected by the curved end surface.

Abstract: A DRL unit as a vehicle signaling light can include: an LED light source; and a plate light guiding lens formed from a light guide plate. The light guide plate includes: a light guide plate main body having a light output surface; and a light entrance portion that is formed to be continuous with the light guide plate main body and includes a light incident surface opposite to the light source and upper and lower expanded portions. The upper and lower expanded portions are integrally formed with the light entrance portion on top and bottom surfaces of the light entrance portion so as to expand in the thickness direction of the light guide plate main body. Here, the upper and lower expanded portions can have asymmetric cross sections in the thickness direction and different sizes when seen in a top plan view.

Abstract: A vehicular headlamp includes a reflector, a lighting element and a shade with a reflection body. The shade is fixed to the reflector, with the reflection body extending forward from the front end of the shade. The reflection body includes a reflective surface inclined to face a front of the headlamp and a supplemental light plane inclined to face a rear of the headlamp. The lighting element emits light to the reflector, which is then reflected towards the upper surface of the shade, the reflective surface of the reflection body, and the supplemental light plane, before being projected as a main light beam towards an outside of the vehicle. The reflective surface and the supplemental light plane redirect at least a portion of light from a lower part of the main light beam and the supplemental light plane redirect at least a portion of projected on an opposite lane, an upper part of the main light beam.

Abstract: Various embodiments may relate to a lighting apparatus, including at least one primary light source for generating primary light, a reflector having two spaced-apart focal spots, a guiding optical unit disposed downstream of the at least one primary light source and serving for guiding the primary light to a first focal spot of the reflector, and a conversion device for at least partly converting the primary light into secondary light having a different wavelength which is situated at the second focal spot. The reflector has a first reflective partial region, to which the two focal spots are assigned, and a second reflective partial region, which is a partial region retroreflective for the second focal spot. The primary light emitted by the at least one primary light source is incident on the first partial region.

Abstract: A luminaire includes a surface light source that emits light with a plane, effective emission surface E, from which the light generated in the surface light source is radiated, a reflector configured to suppress glare of the surface light source for emission angles above a glare angle a, with 40°?a?80°, and a plane, effective radiation surface F, from which light emitted by the surface light source emerges from the luminaire, wherein the emission surface is surrounded on all sides by the reflector and the reflector, starting from the emission surface, extends towards the radiation surface, the reflector, in a cross-sectional view perpendicular to the emission surface, is formed concave on average so that a width b of the reflector in a direction away from the emission surface is described by a function f (b) and the first derivative f? (b) thereof increases either strictly monotonically or as an alternative monotonically as well as strictly monotonically in some places in the direction away from the emission

Abstract: An illumination optical system with a tunable beam angle (IOSTBA) is presented to achieve different beam angles without changing parts. The IOSTBA includes a light source and a post having a proximal end and a distal end, the proximal end in optical communication with the light source, an internal area of the post having a reflective surface. Also shown is a diffuser disposed across the end of the post, the diffuser in optical communication with the post and a reflector surrounding a portion of the post, the reflector movable along a length of the post. A position of the reflector along the post determines a beam angle of a resulting light beam exiting the IOSTBA. The system features a simple and cost effective optical design which works with a variety of light sources, including color mixing and champing strategies.

Abstract: A light assembly comprises an LED light source, a reflector, and an optical element assembly. The LED light source comprises a light emitting die and has an optical axis which extends from the light emitting die and perpendicular to a first plane. The reflector defines an optical cavity and has a reflective surface oriented to reflect light emitted by the light source incident to the reflective surface along a range of reflected angles. The optical element assembly comprises an optical element disposed in the path of the light emitted from the light source. The optical element is supported within the optical cavity by a connector arm, which has first and second ends. The first end is connected to the optical element and the second end supports the optical element assembly from behind the reflector.

Abstract: A lighting fixture includes an elongated lens having an inner surface and an outer surface. The lighting fixture further includes a phosphor layer coupled to the inner surface of the elongated lens. The lighting fixture also includes a first reflector and a second reflector. The first reflector is attached to a first side surface of the elongated lens. The first side surface of the elongated lens is between the inner surface and the outer surface on a first elongated side of the lens. The second reflector is attached to a second side surface of the elongated lens. The second side surface of the elongated lens is between the inner surface and the outer surface on a second elongated side of the lens. The elongated lens, the phosphor layer, the first reflector, and the second reflector are extruded or molded as a single piece.

Abstract: A relay has a case, a relay body disposed in the case, a light source disposed in the case that emits light in accordance with an operation of the relay body, a light guide path which that receives, via a first end surface, the light emitted from the light source, and causes the light to exit outward from a second end surface, and a diffusion structure disposed in an optical path of the light which exits from the second end surface of the light guide path.

Abstract: A light guide having: a splitting section dividing light derived from a light source into at least two beams of light; and at least two light guiding sections causing the light from the splitting section to propagate in a predetermined length direction, the light guiding sections being arranged side by side in a predetermined width direction with the splitting section disposed therebetween, wherein the light guiding section includes: a reflective section reflecting the light, the reflective section being provided along the length direction; and an emission surface emitting the light reflected by the reflective section as a linear beam of light, the emission surface being positioned opposite to the reflective section, and a cross section of the splitting section perpendicular to the length direction decreases in dimensions both in the width direction and a height direction.

Abstract: Vehicle headlight comprising a monolithic body of transparent material, the monolithic body including at least one light entry face, a light passage section and at least one optically operative light exit face. The Vehicle headlight further comprises a light source for irradiating light into the light entry face.

Abstract: A light guiding system includes an ambient light gathering system, multiple light guiding devices and a wedge light guiding bar. The ambient light gathering system facing ambient light is used for absorbing the ambient light. Each light guiding device absorbs the absorbed light. The wedge light guiding bar has a light-out surface and a light-in surface coupled to the light-out surface. The light-in surface is a wide surface coupled to an inclined surface. The light-out surface is opposite to the inclined surface and next to a light-in side of a light guide plate. The wedge light guiding bar for use in the light guiding system, an edge-lighting backlight module and an LCD device can reduce cost of material and weight. Also, the light uniformity of the light output end is improved and the optical quality of the edge-lighting backlight module is raised.

Abstract: An LES is a surface from which light emanates from a lighting fixture. The present disclosure relates to a providing a lighting fixture that has an actual light emitting surface (A-LES), which is substantially smaller than the maximum potential LES (M-LES) for the lighting fixture. The M-LES is defined as the theoretical maximum LES for the mounting structure of the lighting fixture, and the A-LES is defined as the actual LES of the lighting fixture, as dictated by the lens or optical structures of the lighting fixture. The A-LES may provide an LES that is not only smaller, but also shaped differently, from the M-LES, to help control the light output of the lighting fixture based on the lighting application.

Abstract: A lighting device may include a semiconductor light source module, an optical unit, and a common support for the semiconductor light source module and the optical unit. The optical unit is mounted on a front side of the support and has at least one dowel, which extends into a precisely fitting hole in the semiconductor light source module. The semiconductor light source module rests on a rear side of the support. The at least one dowel projects through an aperture in the support and extends into the precisely fitting hole in the semiconductor light source module. The at least one dowel forms a shoulder, which rests on a supporting surface of the semiconductor light source module that rests on the rear side of the support.

Abstract: A luminaire includes a light source (101), and a first free-form reflector (110) registered with the light source (101) and receiving non-collimated light (102) from the light source (101). A secondary reflector (120) is configured to receive the non-collimated light reflected from the first free-form reflector (110). A second free-form reflector (110) is configured to receive the non-collimated light reflected from the secondary reflector (120). A virtual source reflector (125) is registered with the second free-form reflector (110) and configured to receive the non-collimated light reflected from the second free-form reflector (110).

Abstract: A concealable lightweight low-profile solid-state light source which can be attached to or embedded in a mounting surface so as to blend with that mounting surface. The light weight concealable low-profile solid-state light source comprises at least one LED at least one reflector, at least one diffuser wherein the reflector and the diffuser form a light recycling cavity that recycles the light emitted by the LED until it is transmitted through and from the diffuser. The heatsink or heat dissipating surface does not extend or protrude more than a millimeter beyond the light emitting surface of the concealable low-profile solid-state light source.

Abstract: Illumination devices whose function are to inject light into backlights, particularly into backlights that incorporate a recycling cavity formed by a front (50) and back (52) reflector, are described. In some embodiments, the device includes a light source (59) disposed proximate the back reflector, and first (42) and second (44) reflecting structures. The first reflecting structure includes an inner reflective surface (41b) at least a portion of which is inclined to form a wedge with the back reflector. The wedge partially collimates and directs light from the light source generally away from the recycling cavity. The second reflecting structure receives light exiting the wedge and redirects such light into an injection beam directed into the recycling cavity.

Abstract: A display apparatus including a light emitting body to improve external appearance thereof. The light emitting body is disposed inside a bezel to emit light. The bezel has a reflective surface to reflect light emitted from the light emitting body in front of the display apparatus. The bezel also has a light interruption groove to prevent light emitted from the light emitting body from affecting an image formed on the display module. The light emitting body is operatively connected to a user interface unit. A user manipulates a manipulation panel or a remote control to set an operation mode of the light emitting body from a menu item on an on screen display, and the light emitting body emits light in various forms based on the set mode.

Abstract: A backlight unit and a display apparatus using the same are disclosed. The backlight unit includes a first reflector, a second reflector partially having an inclined surface, a plurality of light sources disposed between the first reflector and the second reflector, and a third reflector disposed between adjacent light sources.

Abstract: Disclosed is a luminaire having a light exit window (30) for emitting light from the luminaire, and a reflective screen (40) arranged opposite the light exit window. The luminaire further includes a light source (20) which is arranged for indirect illumination of the light exit window via the reflective screen. The light source is arranged near the light exit window on an imaginary plane P substantially parallel to the light exit window and emits light away from the light exit window. The luminaire further includes a specularly reflective part (43) as part of the reflective screen, which specularly reflective part is concavely shaped for reflecting at least part of the light emitted by the light source towards a diffusely reflective part (42) of the reflective screen.

Abstract: The present invention relates to a backlight unit having a reflective portion, including a light source module for emitting a light, a first reflective portion arranged spaced a first distance away from one side of the light source module to have an open region, and a second reflective portion arranged spaced a second distance which is greater than the first distance away from the other side of the light source module to have at least a portion with a sloped surface for reflecting the light toward the open region of the first reflective portion.

Abstract: Disclosed herein are an illumination unit and a display apparatus. The illumination unit includes a first reflector, a second reflector arranged at either side of the first reflector, at least one light source module arranged between the first reflector and the second reflector, a cover member for covering the second reflector, an optical member arranged between the cover member and the second reflector while facing the first reflector, a first projection member interposed between the optical member and the cover member, and a second projection member interposed between the optical member and the second reflector. The distance from the cover member to one side surface of the first projection member is longer than the distance from the cover member to one side surface of the second projection member.

Abstract: A lighting device includes a light bar, two reflective covers and a reflective plate. The two reflective covers respectively connected to two opposite long sides of the light bar. The reflective plate is positioned at the light output side of the light bar. The reflective surface of the reflective plate faces the light output side of the light bar. The reflective plate has a wavelength conversion layer positioned on the reflective surface thereof. The light bar emits a first wavelength light, and a portion of the first wavelength light is converted by the wavelength conversion layer into a second wavelength light which is reflected by the reflective plate to the two reflective covers, while the remaining non-converted first wavelength light is reflected by the reflective plate to the two reflective covers and mixed with the second wavelength lights to give a light with a predetermined spectrum.

Abstract: A light module includes a light emitting diode (LED) array and a double-reflective assembly coupled to the LED array. The double-reflective assembly includes a lower member having a frame. The frame has an opening corresponding to the LED array. The frame and LED array are located in the same plane. The light module further includes a left bottom reflector and a right bottom reflector. The light module further includes an upper member which includes a left top reflector; and a right top reflector, wherein the left top reflector is attached to the left bottom reflector, and right top reflector is attached to the right bottom reflector, each forming an arbitrary left and right double-reflective assembly. A shape geometry and profile of each double-reflective assembly provides a pre-calculated combined non-circular asymmetrical intensity distribution pattern.

Abstract: An apparatus for generating light may be comprised of a light source with a lens interposed in a light path from the light source. The lens may be comprised of two or more sections wherein at least one section may be comprised of smart glass. Electrical circuitry may be configured to control a transparency state of the smart glass lens sections. Another embodiment may have two reflectors wherein one of the reflectors may be interposed between the light source and the other reflector and may be comprised of smart glass with a transparent state and a reflective state so that two different reflection patterns may be created. A method for illumination wherein at least one area's illumination is controlled by a section of smart glass is also disclosed.

Abstract: An illumination system comprises an arc lamp having a cathode and an anode which emit light from a hot spot. A dual paraboloid retroreflector comprising upper and lower halves intercept light emitted rearwardly from the arc lamp and reflects the intercepted light back towards the hot spot. The retroreflector is spaced from the hot spot at a distance such that light rays emitted from the hot spot which are incident on the upper or lower half are redirected to a corresponding surface of the other half and reflected back to the hot spot. The system may further include a main dual paraboloid reflector for redirecting output light from the arc lamp and retroreflector. Light emitted from the arc lamp is intercepted by a first half paraboloid reflector and collimated to be redirected toward to a corresponding surface of a second half paraboloid reflector member, so as to be reflected in a direction opposite to the arc lamp output.

Abstract: A light guide having; an entrance portion; a light-splitting portion; a first and a second light guide portion; and a first and a second reflective portion provided in or on the first and second light guide portions, respectively. The first and second light guide portions emit light reflected by the first reflective portion and light reflected by the second reflective portion to outside as a first linear light beam and a second linear light beam, respectively. The light-splitting portion projects toward the entrance portion, and has a first inclined surface, a second inclined surface and a connecting section. The entrance portion has a light-diffusing section opposed to the connecting section in a direction of optical axis, and the light-diffusing section diffuses the light emitted from the point light source toward the first light guide portion and the second light guide portion.

Abstract: A vehicle headlamp is provided with a light emitting module. The light emitting module is provided with a light emitting portion and a frame member. The frame member surrounds the light emitting portion to define a light emitting surface. The frame member includes a first surface and a second surface in which a part of an internal diffusing/reflection light reflected on the first surface is to be projected upwardly of a cutoff line of a low-beam light distribution pattern, and a part of the internal diffusing/reflection light reflected on the second surface is to be projected downwardly of the cutoff line. A reflectance of the first surface is lower than a reflectance of the second surface.

Abstract: Various embodiments of the illumination unit include a surface light source, a primary optical element, a first reflector and a second reflector. The primary optical element is arranged at the surface light source in such a way that light emitted by the surface light source is imaged onto the first reflector by the primary optical element. The beam cross section of the light is reduced by the primary optical element at the same time. In this case, the first reflector images the light beam that has been reduced by means of the primary optical element onto the second reflector in order to emit the light from the second reflector from the illumination unit.

Abstract: An integrated optic lamp assembly includes a rigid mounting structure, a base, a light source, and a reflector. The base, light source, and reflector are supported by the mounting structure. The base is configured to operationally connect to a light source socket. The reflector is configured and positioned relative to the light source to distribute light emitted from said light source in a predetermined light distribution pattern.

Abstract: Disclosed are a backlight unit and a display using the same. The backlight unit includes a first reflector, a second reflector, and at least one light source disposed between the first reflector and the second reflector, and the end of the second reflector is separated from the at least one light source by a first distance in the upward direction of the at least one light source.

Abstract: The present invention is to provide a light guide structure, which includes a conical light guide element being a hollow cone and having an inner surface configured as a reflective surface, a light-emitting element (e.g., an LED) provided in a pointed end of the conical light guide element, and a partially blocking reflective element covering an opening on the other end of the conical light guide element and including a light-permeable region and an opaque reflective region. The opaque reflective region corresponds in position to an optical axis of the light-emitting element, and the light-permeable region is located around the opaque reflective region and outside the optical axis. Thus, when the light emitted by the light-emitting element passes through the conical light guide element, the light will be repeatedly reflected by the reflective surface and the partially blocking reflective element until being fully projected to and penetrates the light-permeable region.

Abstract: An economical LED light module configured to emit a uniform pattern of light from a single LED utilizing a minimal amount of energy and exhibiting a long and useful life is provided. The LED light module includes a main hyperbolic reflector and a plug receptacle having an electrical connector configured for electrical communication with a power source. A LED is mounted in electrical communication with the electrical connector. An elongate light pipe extends between a light receiving end configured to receive light emitted from the LED and a light emitting end. The light emitting end has a parabolic reflector positioned concentrically about a focal point of the hyperbolic reflector.

Abstract: A reflector with an alignment recess is provided. The reflector has a recess portion that receives the base of a light emitting diode. At least a portion of an outer periphery of the base of the light emitting diode is adjacent at least portions of the recess portion of the reflector.

Abstract: The present disclosure provides an illumination device. The illumination device includes a cap structure. The cap structure is partially coated with a reflective material operable to reflect light. The illumination device includes one or more lighting-emitting devices disposed within the cap structure. The light-emitting devices may be light-emitting diode (LED) chips. The illumination device also includes a thermal dissipation structure. The thermal dissipation structure is coupled to the cap structure in a first direction. The thermal dissipation structure and the cap structure have a coupling interface. The coupling interface extends in a second direction substantially perpendicular to the first direction. The thermal dissipation structure has a portion that intersects the coupling interface at an angle. The angle is in a range from about 60 degrees to about 90 degrees according to some embodiments.

Abstract: A projection lamp includes a bulb, a main reflective cover and a secondary reflective cover. The bulb includes a wick and a lamp tube which wraps the wick. The wick is configured to emit divergent light beams while the bulb is lit up. The main reflective cover is connected to the lamp tube and includes a main reflective surface facing the wick. The main reflective surface is configured to convert the divergent light beams into projection beams. The secondary reflective cover is melt bonded to the lamp tube and includes a secondary reflective surface facing both of the wick and the main reflective surface. The secondary reflective surface is configured to reflect a portion of the divergent light beams, cannot be directly emitted onto the main reflective surface, onto the main reflective surface while the bulb is lit up.

Abstract: An illumination device includes: a point light source; a substrate; a hollow frame having an engaging bent section at one of its edges; and a bottom surface reflection section, a side surface reflection section, and a light conducting reflection plate that are disposed inside the frame. The light conducting reflection plate is held between the bent section and the side surface reflection section that is held by the other edge of the frame and the bottom surface reflection section fixed to the substrate. The surface of the bottom surface reflection section facing the light conducting reflection plate, the inner surface of the side surface reflection section, and the surface of the light conducting reflection plate facing the bottom surface reflection section have high light reflectivity and low light transmissivity.

Abstract: A vehicle lighting unit can include a first lens and a second lens disposed below the first lens, and a first semiconductor light-emitting device disposed substantially at a vehicle rear-side focal point of the first lens. Light emitted from the first semiconductor light-emitting device in a narrow angle direction can be incident on the first lens. A first reflector can be disposed diagonally forward and downward with respect to the first semiconductor light-emitting device such that light emitted from the first semiconductor light-emitting device in a wide angle direction is incident thereon and reflected diagonally rearward and downward. The light emitted in the narrow angle direction and incident on the first lens having a luminous intensity higher than the light emitted in the wide angle direction. A second reflector can be disposed diagonally rearward and downward with respect to the first reflector.

Abstract: The lighting apparatus includes a body including a recess which is defined by an inner wall; a reflector which is disposed within the recess of the body and faces the inner wall of the body, and includes a reflective surface reflecting light to the outside of the recess of the body; and a light source which is disposed within the recess of the body and emits light toward the reflective surface of the reflector.

Abstract: The invention relates to a luminaire (2) and an illumination system (12). The luminaire according to the invention comprises a light exit window (30) for emitting light from the luminaire, and a reflective screen (40) arranged opposite the light exit window. The luminaire further comprises a light source (20) which is arranged for indirect illumination of the light exit window via the reflective screen. The light source is arranged near the light exit window on an imaginary plane P substantially parallel to the light exit window and emits light away from the light exit window. The luminaire further comprises a specularly reflective part (43) as part of the reflective screen, which specularly reflective part is concavely shaped for reflecting at least part of the light emitted by the light source towards a diffusely reflective part (42) of the reflective screen.

Abstract: Embodiments of a reflector and a lamp that utilizes the reflector and light-emitting diode (LED) devices to generate an optical intensity distribution substantially similar to that of a conventional incandescent light bulb. The lamp can include a heat dissipating assembly with one or more heat dissipating elements disposed annularly about the envelope and spaced apart from the envelope in order to promote convective airflow. In one embodiment, the reflector operates as a total internal reflection (TIR) lens.