Abstract: A reflector for the lighting device and an illumination system of the projection apparatus are provided. The reflector comprises a first reflecting structure and a second reflecting structure disposed on the portion of the first reflecting structure. The reflecting surfaces of the first and second reflecting structures are formed with a distance therebetween. After the first portion of the light is reflected from the first reflecting surface and the second portion of the light is reflected from the second reflecting surface, the second portion of the light is adapted to remove the centrally dimmed area at the opening of the lighting device. Thus, the luminance performance can be improved.

Abstract: According to embodiments described in the specification, a reflective iris is described for concentrating collimated light emitted from a parabolic lamp, the parabolic lamp comprising a lamp aperture from which the collimated light is emitted. The reflective iris is comprised of a planar reflective element for reflecting the collimated light back towards the parabolic lamp, a shape of the planar reflective element being generally complementary to a shape of the lamp aperture; and an optical aperture through the planar reflective element, disposed around a perpendicular axis of the planar reflective element, for light to pass through the planar reflective element. When the reflective iris is axially aligned with the parabolic lamp, the collimated light is reflected from the planar reflective element back towards the parabolic lamp, for reflection back through the optical aperture.

Abstract: A light diffusion device permits a single light source to serve as both direct lighting and fill lighting for a photographic, theatrical or cinematographic subject. The light diffusion device partially reflects light emitted from a light source away from the subject, using a translucent panel. Additional translucent panels permit the reflected light to escape from the light diffusion device into the surrounding environment. The escaped light reflects from the surrounding environment, thereby creating fill light around the subject, thus reducing or eliminating undesirable shadowing.

Abstract: To provide a luminescent light source that can increase the number of divisions of a reflecting mirror without reducing pitch interval of reflection areas. A luminescent light source comprises a reflecting mirror for reflecting light, a mold unit arranged on a light reflection surface of the reflecting mirror, and light emitting devices of three luminescent devices of red, blue and green that are placed in the central part and output light to the mold unit. In the reflecting mirror, rectangular reflection areas are arranged vertically and horizontally in a grid.

Abstract: A light source system and a display apparatus comprising the light source system are provided. The display apparatus comprises the light source system and an imaging system. The light source system is configured to provide a light for imaging. The light source system comprises a mirror wheel and at least two light source modules, configured to provide at least two light beams respectively. These light beams are lit up according to a predetermined sequence. After being reflected by or directly passing through the mirror wheel, the light beams form a continuous light, traveling into the imaging system for imaging on a screen.

Abstract: A planar light-source device is obtained in which, in the space between a point light source and the peripheral portion of a through-hole in a case, rays that leak into or are absorbed into a space outside a hollow region can be reduced, whereby the number of rays that propagate into the hollow region can be increased. A point light source is installed from outside a case, through through-holes formed in the case and a reflection sheet, and a reflector formed on the reflection sheet to correspond to the point light source is slanted with respect to the bottom side of the case, depthward along the through-hole, in a region enclosed by the peripheral portion of the through-hole of the case and by the point light source.

Abstract: A light fixture has an elongated housing having a floor and side walls defining a transversely open and longitudinally extending outlet and a light source extending longitudinally in the housing. A U-section asymmetrical primary reflector extending longitudinally in the housing between the source and the floor is oriented to reflect light from the source out through the outlet. Two longitudinally extending generally triangular-section secondary reflectors extend longitudinally spacedly adjacent one another between the source and the outlet. The secondary reflectors have outwardly concave first sides directed toward each other, concave second sides directed away from each other, and outwardly concave third sides directed toward the source. Thus light from the source is directed back toward the source and the first reflector by the third sides, is scattered outward through the outlet by the second sides, and is directed outward through the outlet by the first sides.

Abstract: The invention relates to an illumination device which comprises a plurality of downlight reflectors (1) that are impinged upon by illumination means and that have respective front reflector openings (2) pointing in the direction of illumination. The invention is characterized in that at least two downlight reflectors can be impinged upon by a common illumination means (5) via respective rear reflector openings.

Abstract: A lighting device may include light sources at one or two distal ends; wherein LEDs may be used as a light source. The lighting device may comprise a housing, at least one light-entering plane, at least one light-emitting plane and at least one guiding surface attached to the housing. A plurality of guiding blocks are configured and disposed on the guiding surface, and at least one distal end of the guiding surface is adjacent to the light source such that as light travels into and within the housing, light may be reflected and/or deflected by the guiding blocks and exits the housing via the light emitting plane. The illumination area opposite the light emitting plane may therefore receive substantially uniform lighting from the lighting device. The device may further comprise a reflector covering a portion of the guiding surface and a diffuser covering a portion of the light emitting plane.

Abstract: The invention provides an illumination system that can include a first reflecting mirror arranged on a rear side of a light-emitting portion of the illumination system including an arc tube, and a second reflecting mirror arranged on the front side of the light-emitting portion of an optical system.

Abstract: Luminaires for illuminating a target zone having target zone subregions in front of and to the sides of the luminaire. The luminaire includes a housing, a lamp holder in the housing positioned to support an electric lamp in a generally vertical orientation, and a compound parabolic reflector in the housing partially surrounding a lamp light-emitting segment location having plural regions. Preferred forms of the compound parabolic reflector include segmented center and side portions. The preferred segmented center portion has a first plurality of two-dimensional parabolic segments each of which has a focal point in a different one of the plural light-emitting segment location regions. The preferred segmented side portions are each provided with a second plurality of two-dimensional parabolic segments having focal points along the light-emitting segment location. The parabolic segments are effective to direct a preponderance of light toward the plural target zone subregions.

Abstract: A light fixture for illuminating a specific target area is disclosed. The light fixture includes an extended light source that emits light from a surface. The light source emits light from the surface in directions towards the target area and away from the target area. The light fixture also includes a reflector arrangement configured to redirect the light that would otherwise be emitted from the surface of the light source in directions away from the target area to directions towards the target area such that substantially all the light emitted from the light source is made incident in or directed into the target area.

Abstract: A headlight of the elliptical type comprises an occulting or masking screen which defines a cut-off profile in the light beam emitted by a light source, the beam being a regulation lighting beam for use in wet weather, with a cut-off profile. This beam includes a zone of reduced illumination which is situated below the cut-off line. The occulting screen includes at least one generally transverse portion which is made of transparent material and which lies above the cut-off line. This transparent portion includes a zone of reduced transparency which forms the zone of reduced illumination within the regulation lighting beam.

Abstract: A module for projecting a light beam comprises a light source and a substantially flat support surface on which the source is arranged in a manner such as to emit light from only one side of the surface, and a reflector for reflecting the light emitted by the source. The reflector comprises a curved reflecting surface which extends on one side of the support surface, has a concavity facing towards the support surface, and can reflect the light coming from the source in a principal direction substantially parallel to the support surface of the source. An optical device for a module according to the invention and a vehicle front light assembly comprising a plurality of modules according to the invention form further subjects of the invention.

Abstract: A backlight unit includes a fluorescent lamp to illuminate a liquid crystal panel, a reflection unit for causing the light from the fluorescent lamp to exit toward a certain direction, and a diffusion unit for diffusing the light from the fluorescent lamp and reflection unit, and reflectance or transmittance in the horizontal and vertical directions is controlled by applying a dot pattern that gradually increases densities from the central portion toward the peripheral portion to the reflection unit or diffusion unit, or by applying a dot pattern that gradually increased densities from the central portion toward the both ends in the longitudinal direction on the surface of the fluorescent tube of the fluorescent lamp. By doing this, brightness gradient is formed in the horizontal and vertical directions so that the brightness in the central portion of the liquid crystal panel is relatively higher than the brightness of the peripheral portion thereof.

Abstract: A PAR lamp (10) has a body (12) with an internal reflector surface (14) disposed about a longitudinal axis (16). A cavity (18) is provided at one end (20) of the body (12) and an arc discharge tube (22) that provides a substantially spherical light source is positioned in the cavity (18) and disposed on the longitudinal axis (16). A cover receiving opening (24) is provided at a second end (26) of the body and a cover (27) closes the cover receiving opening (24). A plurality of spiral facets (28) is formed on the internal reflector surface (14), the plurality of spiral facets (28) being sufficient in number to increase the maximum beam candle power and decrease the beam angle when compared to faceted lamps having a lesser number of facets. The number of facets is equal to or greater than 75 and preferably is 100.

Abstract: A self-standing reflector, and method of making same, comprising a main reflector formed from at least one sheet of reflective material, and at least one reflective insert joined to the main reflector. The main reflector is typically formed by folding a plurality of flat panels along fold lines pre-formed in the sheet into abutting relationship to define a predetermined three-dimensional reflector shape. The reflective insert can have a plurality of facets formed into its reflective surface and is joined to the interior surface of the folded main reflector, and has a reflecting surface disposed inboard from the interior reflective surface of the main reflector. The main reflector and the reflective inserts have a reflectance of at least 95% (Miro 4). The fold-up reflector with its reflective inserts directs reflected light to a predetermined area to provide improved area lighting with less light scatter and improved efficiency.

Abstract: To compensate for uneven brightness in the longitudinal direction of fluorescent lamps of a backlight unit and achieve a display screen with an even brightness, a reflection unit of the backlight unit, the fluorescent tube surface of the fluorescent lamps or a diffusion unit is used to either reduce the reflectance, transmittance, or radiation brightness of the high-voltage side of the fluorescent lamps or increase the reflectance, transmittance, or radiation brightness of the low-voltage side thereof so as to compensate for uneven brightness of the illumination light and thereby ensure an even brightness. For example, dot pattern regions D1, D2 and D3, i.e., the regions whose density increases in stages, are imparted to the portion of a reflection layer 13 of the backlight unit with a relatively high brightness.

Abstract: A light emitting assembly, a backlight unit, and a display are provided. The light emitting assembly includes: light emitting modules, wherein the light emitting modules include: a substrate having an electrical connecting portion; and a plurality of light emitting units arranged on the substrate, and wherein the light emitting modules can be assembled using the electrical connecting portion. The light emitting assembly can be assembled using the light emitting modules comprised of independent blocks and thus, can be freely used regardless of the size of the display.

Abstract: A method and apparatus to increase efficiency of wide area lighting fixtures having a lamp mounting opening in a reflector or reflector frame, which results in gap(s) or spaces that do not control incident light to the intended target. The gap(s) or spaces(s) are covered with reflecting surfaces which do control incident light to increase efficiency of the fixture.

Abstract: A light emitting device (1) includes a light emitting element (2), a substrate (3), a reflecting plate (4), and a screw member (5). The light emitting element is mounted in the substrate. The reflecting plate is arranged on the substrate. The screw member fixes the reflecting plate and the substrate to each other. The substrate includes a first surface (7), a second surface (8) on an opposite side of the first surface, and an applied part (11) on which the light emitting element is mounted. The reflecting plate includes a third surface (9) that comes into contact with the first surface, a fourth surface (10) on an opposite side of the third surface, and an opening portion (6). The opening portion penetrates the reflecting plate and opens on the third surface and the fourth surface. The opening portion has the shape such that an opening space on a side of the third surface of the reflecting plate is smaller than an opening space on a side of the fourth surface of the reflecting plate.

Abstract: The optical diffuser has a transparent base body with a first surface, which is divided into facets. Each facet has an elevation or a depression correlated or associated with a second curved surface. Respective facets have correspondingly different geometrical shapes. In some embodiments the respective apexes (S) of the elevations or depressions are arranged along a spiral, especially an Archimedian spiral. In other embodiments the apexes (S) are defined by coordinates (xs?, ys?) derived by rotation of coordinates (xp, yp) of all points (P), which are defined by an arrangement of facets with a regular hexagonal edge contour, about a center (0, 0) through a twist angle (?). Alternatively the apexes (S) are defined by coordinates (xs?, ys?) derived from coordinates (xp, yp) of all points (P), which are defined by the arrangement of facets with the regular hexagonal edge contour, by random variations with the help of a Monte Carlo method.

Abstract: A lens with lenticules arranged in a spiral pattern is described. In polar coordinates the centers of successive lenticules are radially and angularly spaced by spacing factors including Phi, the conjugate of the Golden Ratio. The resulting spiraling lenticule pattern is free of internal harmonics that lead to striation patterns in the lens refracted light. At the same time the size of the beam spot can be set by reflector size and lenticule profile.

Abstract: A lighting device includes an illumination face having a length and a width; a light-emitting element having a light-ray-releasing face the maximum length of which is equal to or less than the width of the illumination face; and a light-source unit that has an optical element which changes the direction of light rays released from the light-emitting element to be directed to the illumination face. The optical element has a concave-face reflecting unit having a cross section that is shaped into a quadratic curve or a pseudo quadratic curve, which is placed at least on one portion thereof, and a luminance distribution on the illumination face has a flat portion that is equal to or not less than a predetermined width.

Abstract: A light collimation device comprising a wave guide plate (100) having a first surface (101), an opposing faceted second surface (102) comprising a plurality of essentially planar parallel portions (103) and a plurality of facets (104) connecting said planar parallel portions (103) and at least one surface (105) for receiving light is provided. Each facet (104) is formed at a non-right angle (?) to said planar parallel portions (103) and the device further comprises a plurality of collimating refractive elements (106), wherein each collimating refractive element (106) corresponds to a separate one of the plurality of facets (104), and is located in the beam path of at least the major part of light being reflected on the corresponding facet (104) and extracted from said wave guide plate (100).

Abstract: An improved lamp fixture with anti-glare function is disclosed, which comprises: a lamp; a light source; and a light-control unit, composed of a semi-Fresnel microstructure and a light-control microstructure; wherein the light source and the light-control unit are mounted on the lamp; and the semi-Fresnel microstructure is used for diffusing/collimating light of the light source while the light-control microstructure is used for controlling the resulting lighting angle. With the aforesaid lamp fixture, not only glare can be prevented, but also uniformity of the lamp fixture is improved.

Abstract: An LED (light emitting diode) illumination device that can generate a uniform light output illumination pattern. The illumination source includes first and second reflectors with a conic or conic-like shape. One reflector is mounted in the same plane as the LED and wraps around the front of the LED to redirect the light emitted along a central axis of the LED.

Abstract: Various techniques are described herein for combining two or more LEDs in a single reflective cavity for a rear lamp in an automobile. The LEDs may be two or more different colors for performing different functions, such as a stop light, a turn signal, and a tail light. In one embodiment, the LEDs have side emitting lenses and are coaxially aligned in a parabolic reflector. The LEDs may be mounted facing each other or mounted in the same direction, or a combination of both. The LEDs may share a common heat sink. A second reflector may be positioned inside a larger reflector, where a first LED is mounted near the focal point of the larger reflector, and a second LED is mounted near the focal point of the inner reflector. Additional LEDs may also be mounted in either reflector and separately controlled.

Abstract: A light source device includes a discharge lamp and a reflection mirror having a plurality of concave curved surfaces. Each of the plurality of concave curved surfaces is an ellipsoidal surface. A first focal point of each of the ellipsoidal surfaces is disposed at the light emitting center of the discharge lamp. A second focal point of each of the ellipsoidal surfaces is disposed, when viewed from a predetermined first direction perpendicular to a system optical axis passing through the light emitting center, on the opposite side of the system optical axis to the ellipsoidal surface, and when viewed from a second direction perpendicular to the system optical axis and the first direction, on the side where the ellipsoidal surface is present with reference to the system optical axis.

Abstract: A multifunction lamp comprises: a light source; a first reflector receiving and reflecting the projected light from the light source; a second reflector receiving and reflecting the reflected light from the first reflector; a first light-guide member which is provided between the light source and the first reflector or and the end of the first reflector away form the light source; and a second light-guide member guiding the light reflected by the second reflector out of the lamp.

Abstract: Provided are solid state backlight devices and methods for forming the same. A solid state backlight unit according to some embodiments of the invention includes a housing having a major surface and multiple LEDs on a first surface of the major surface. The solid state backlight unit also includes a specular reflector proximate to the first surface of the major surface and oriented substantially perpendicular to the first surface of the major surface.

Abstract: A lamp assembly adapted to cast shadow-free illumination over an area. Typically, a lamp assembly includes a plurality of light modules that are disposed in a spaced apart relationship over an area. Desirably, the lamp assembly is arranged to aim the light output of each module for overlapping summation on a target footprint. Modules generally each include a LED light source, a parabolic reflecting mirror arranged to direct light from the LED, a TIR collimating lens disposed at a distal end of the mirror, and a stray light tube disposed between the LED and a dispersing lens element.

Abstract: A light fixture device comprises a reflector portion having a pair of parallel longitudinal boundary regions and a pair of parallel lateral boundary regions; the reflector portion being shaped according to a longitudinal focal line, a pair of housing portions, each for engaging a corresponding lateral boundary region; at least one connector portion for coupling the housing portions together with the reflector portion.

Abstract: An illumination system of a microlithographic exposure apparatus has an optical axis and a beam transforming device. This device includes a first mirror with a first reflective surface having a shape that is defined by rotating a straight line, which is inclined with respect to the optical axis, around the optical axis. The device further includes a second mirror with a second reflective surface having a shape that is defined by rotating a curved line around the optical axis. At least one of the mirrors has a central aperture containing the optical axis. This device may form a zoom-collimator for an EUV illumination system that transforms a diverging light bundle into a collimated light bundle of variable shape and/or diameter.

Abstract: An optical system for mixing and redirecting light generated by a light source is provided. The optical system comprises a first reflector operatively disposed relative to the light source, the first reflector configured to receive first light emitted by the light source which propagates along lines of sight therebetween and configured to reflect the first light as second light; a diffuser for scattering light incident thereon, the diffuser and the first reflector configured so that second light is incident upon the diffuser, wherein the incident light is diffused as third light and wherein the third light is directed towards the target surface; a second reflector operatively disposed and aligned relative to the diffuser and the first reflector is configured to direct light towards the target surface, thereby illuminating the target surface.

Abstract: Disclosed is a projector comprising a lamp and a reflector which reflects the light beams emitted by the lamp towards a light output hole of the projector. The position of the reflector and the lamp relative to each other can be modified, the distribution of the light that is output being adjustable by displacing the reflector and/or the lamp. The reflector is provided with facets which embody a reflective surface to reflect the light beams emitted by the lamp. The surface shape of said facets is designed such that the light beams generate a luminous field which has a desired light distribution and whose light beam width can be adjusted within a large range by displacing the reflector and/or the lamp.

Abstract: An exemplary backlight module (100) includes a diffusion sheet (110), a plurality of light sources (120), a plurality of supporting posts (130), a plurality of fasteners (140), and a reflective plate (150). The supporting posts are disposed generally between the reflective plate and the diffusion sheet to form a gap with a predetermined distance between the reflective plate and the diffusion sheet. The fasteners are engaged with the reflective plate and hold the light sources to mount the light sources in the gap above the reflective plate. The reflective plate comprises a plurality of elongate bumps (151), and the bumps face toward the diffusion sheet. Each bump is located midway between two adjacent light sources for concentrating and guiding reflected light beams toward a corresponding area of the diffusion sheet above the bump.

Abstract: An LED lighting device comprises an LED light source; a thermal management element coupled to the LED light source to manage heat generated by the LED light source; a primary reflector with at least one reflective surface oriented to collect light from the LED light source and direct collected light into a first reflected beam; at least one central inclined reflector surface disposed to receive light from the LED light source; and at least one corresponding angled mirror surface disposed to collect light from the central inclined reflector surface and to direct the collected light into a second reflected beam (see FIG. 1).

Abstract: The invention relates to an operation light, comprising at least one light-emitting component (9) and at least one light-reflecting surface Mn and in which the light-emitting surface of the light-emitting component (9) is so arranged in the operation light that all or substantially all of the light produced by the operation light consists of light reflected from the reflecting surface, and for each light-emitting component (9) at least one substantially planar light-reflecting surface Mn is provided so that the dimensions of the light-emitting surface of each light-emitting component (9), the direction of the normal to the surface and the distance of the surface in relation to the size of the reflecting surface Mn arranged for the light-emitting component (9) in question, to the direction of the normal to the surface and to the distance of the surface from the surface (11) to be illuminated have been so arranged that the operation light produces on the surface to be illuminated a light pattern of a given shap

Abstract: An LED including housing, lead frame in the housing, light-emitting chip, and packed colloid; pit accommodation portion being disposed in the housing to expose lead frame, and multiple reflective sidewalls at various inclinations being disposed on a side of accommodation portion; the chip being disposed on a lead frame; streams of light form the chip traveling in different directions when reflected by those sidewalls; and most of those streams of light being emitted out of the accommodation portion to promote luminance performance of the LED.

Abstract: One embodiment of the present invention is an optical sheet including a lens sheet having a plurality of microlenses arranged on a front surface thereof and a plurality of projections located at a back side thereof, a projection being located between light transmission parts, and a part corresponding to the microlens being the light transmission part; and a plurality of light reflection layers provided on top of the plurality of projections. A light refracted by the side surface of the projection exits in an oblique direction towards a plane of the optical sheet. Thereby, the view angle can be broadened.

Abstract: A light source is movable between a reference position located on an optical axis on the rear side of a rear side focal point of a projection lens and a forward shift position located on the forward side of the reference position. At a predetermined position of the reflecting surface of a reflector on the lower side of the optical axis, an auxiliary reflecting surface having a vertical section of substantially an elliptical shape is formed which has a first focal point set at the center of the light source at the forward shift position, and a second focal point set at the rear side focal point of the projection lens.

Abstract: A light source or signaling module for the emission of an illuminating or signaling beam along a main direction, of the type including a light source, a luminous flux recovery mirror made up of a set of reflecting tiles, each reflecting tile being formed of a conical segment with two focal points, the first of which is located on the light source and a second focal point which is located, with respect to the reflecting tile, in a direction parallel to the main direction, each reflecting tile forming an image of the light source. The parameters of the conical segments with two focal points made up of the reflecting tiles are adjusted to confer upon the second focal points pre-determined photometric characteristics, and the images from the light source are directly visible.

Abstract: A direct type backlight module with ultra-thin diffuser and excellent brightness uniformity is disclosed to include a housing, a reflector, a first diffuser, light sources, and support members, in which the reflector is mounted on the bottom panel of the housing, the first diffuser is mounted on the opening of the housing and having a visible light (400˜800 nm) transmission not greater than 75%, and the visible light (400˜800 nm) transmission of the top part of each support member is within 5%˜85%.

Abstract: A compact and efficient optical illumination system featuring planar multi-layered LED light source arrays concentrating their polarized or un-polarized output within a limited angular range. The optical system manipulates light emitted by a planar light emitters such as electrically-interconnected LED chips. Each light emitting region in the array is surrounded by reflecting sidewalls whose output is processed by elevated prismatic films, polarization converting films, or both. The optical interaction between light emitters, reflecting sidewalls, and the elevated prismatic films create overlapping virtual images between emitting regions that contribute to the greater optical uniformity. Practical illumination applications of such uniform light source arrays include compact LCD or DMD video image projectors, as well as general lighting, automotive lighting, and LCD backlighting.

Abstract: An illuminating device according to the present invention comprises a first reflector for irradiating forward light beams from a light source, a second reflector that has an aperture and is disposed in front of the first reflector so as to reflect toward the light source the light beams from the first reflector to condense the light beams, a third reflector disposed so as to make the light beams condensed by the second reflector exit through the aperture, and a reflector moving means that moves the second reflector or the third reflector along an optical axis.

Abstract: The present invention provides a lamp that includes a reflection case and a light emitting element. A central portion of a lower wall inner face of the reflection case is stepwise lowered to form a lower wall enlarged inner face, and both faces are made continuous with each other through right and left perpendicular hanging inner faces, so that a central portion of a back wall inner face and a front opening are downwardly enlarged in a rectangular shape, respectively. The light emitting element is mounted on a front face of a sub mount table. A back face of the sub mount table is fixed to the central portion of the back wall inner face, and right and left end faces of the sub mount table are positioned to right and left perpendicular hanging inner faces when the sub mount table is fixed.

Abstract: An illumination lamp including a projection lens 12 and primary and secondary light source units 14, 16 are disposed rearwards of a projection lens 12 disposed on an optical axis Ax, which extends in a longitudinal direction of a lamp. The primary light source unit 14 includes a primary reflector 34 and an upwardly oriented reflecting surface 36a which extends rearwards from the rear focal point F of the projection lens 12. The secondary light source unit 16 includes a secondary reflector 44 that reflects light upwards so as to be caused to substantially converge on a location lying near the rear focal point F on a downwardly oriented reflecting surface 46a, which extends obliquely downwards from a front end edge of the upwardly oriented reflecting surface 36a towards a rear of the lamp.

Abstract: A method and apparatus for improving the quality of light emitted from an HMD lightsource. A backlight-type lightsource is disclosed that utilizes a reflective end-wall 17 to reflect light within the lightguide. Light emitted from an illumination source and reflected from the end-wall 17 combine within the lightguide to produce light with high contrast and homogeneity. A microprism array, consisting of microprisms of uniform height and equidistant spacing, is positioned along the bottom surface of the lightguide. A portion of the combined light incident upon the microprism array is reflected in a direction substantially perpendicular to the lightguide top surface, which comprises an aperture. Light having increased brightness and homogeneity passes through the aperture. Light incident upon the top surface outside of the aperture is reflected within the lightguide so that it may subsequently be transmitted through the aperture.

Abstract: A lamp module for projectors, in particular for digital cinema and video projectors, has a reflector system which has at least two reflectors and in which a lamp is accommodated. The reflector system is electrically connected to the lamp and bears the lamp such that the reflector system and the lamp can be inserted into the projector as a preassembled unit and considerably simplifies assembly.