Abstract: An apparatus and a method for producing an animation effect are disclosed. The apparatus comprises at least one light reflecting member, a first light source, a second light source, and means to intermittently activate the first and second light sources to produce an animation effect.

Abstract: A surface light source device. A light guide plate has an incident end face, an emitting face, at least one full-reflective face, and a plurality of light adjusters. The full-reflective face reflects light onto the incident end face for direction to the emitting face for transmission. The light adjusters are disposed in the light guide plate with a density discontinuously varied in at least one area of the light guide plate to adjust light collection for emission from the different areas of the emitting face, hereby providing discontinuous light intensity. The light source is disposed in the vicinity of the incident end face.

Abstract: A display device used for a display unit of portable electronic equipment, a light source device therefor and a light guide plate, suppressing dispersion in the brightness and featuring a high contrast and a good display quality. The constitution includes a light incidence surface on where light emitted from an LED falls, a light reflection surface formed facing the light incidence surface and reflects light from the light incidence surface, a light outgoing surface arranged between the light incidence surface and the light reflection surface, and has a circularly polarizing plate intimately adhered onto the surface thereof, and an opposing surface formed facing the light outgoing surface and in which there are alternately arranged first opposing surfaces for guiding the incident light to the light outgoing surface as well as to the light reflection surface, and second opposing surfaces for emitting the light reflected by the light reflection surface through the light outgoing surface.

Abstract: A light pipe for separating incident light according to color, a color illumination system adopting the light pipe, and a projection system adopting the color illumination system are provided. Since the projection system is a single-panel projection system adopting a scrolling unit, its optical configuration is simplified. Also, the light pipe of the projection system is comprised of different-sized color separation units, thus improving the color gamut and the color temperature. Further, the light pipe includes color selection polarizers, each of which changes the polarization direction of a color beam with a specific wavelength, thereby improving light efficiency.

Abstract: A liquid crystal display device has a plurality of lamps, a light diffusion plate and/or an optical sheet, a shield portion for accommodating the lamps, the light diffusion plate and/or the optical sheet. There is a liquid crystal display panel located opposite to one side of the light diffusion plate and/or the optical sheet opposed each with the other side to the lamps. The light diffusion plate and/or the optical sheet each have a vent, and a lamp chamber formed in the lamp-accommodating side of the light diffusion plate and/or the optical sheet. There is an LCD panel chamber formed in the LCD panel-disposing side of the light diffusion plate and/or an optical sheet that communicate with each other through the vent of the light diffusion plate and/or optical sheet.

Abstract: A light guiding plate may have a light reflection face with at least one brightness enhancement recess that allows light having the optical distribution of a planar light source to be supplied toward the LCD panel. A brightness concentration recess may be formed in the light output face to concentrate the brightness. The brightness enhancement recess may include light diffusion recesses. The light guiding plate can obviate the use of a diffusion sheet, a prism sheet, or a reflection plate from a backlight assembly.

Abstract: A back light module for flat display device for decreasing the thickness of light guide plate is disclosed. This invention comprises a light guide plate having a first section, a second section and a light-emitting surface; a light source above the light guide plate; a reflector below the light guide plate; and a flexible printed circuit board located at the lateral end of light source wherein most of the light rays emitted from the light source enter into the second section through the first section, then emit from the light-emitting surface.

Abstract: An illumination system for a reflective display is particularly useful for microdisplays that use reflective displays. The light source and the reflective image display unit are mounted in a coplanar manner, thus permitting the light source and the display unit to be mounted on a single board, or even on a single substrate. The display unit may include a first light source directing light generally along a first axis and a reflective image display unit disposed with an optical axis substantially parallel to the first axis. A reflective polarizing film is disposed to direct light from the first light source to the reflective image light display unit.

Abstract: A light guide apparatus for enhancing light source utilization efficiency includes a light guide sheet, a light coupling structure and a light emerging structure. The light coupling structure is arranged on a surface of the light guide sheet and opposite to a light source. The light emerging structure is disposed on a surface of light guide sheet. Lights emitted by the light source enters into the light guide sheet via the light coupling structure and evenly emitted to outer environment via said light emerging structure, thereby enhancing light source utilization efficiency.

Abstract: A backlight unit for enhancing brightness of a TFT-LCD device is disclosed. The backlight unit comprises a plurality of lamp tubes, a diffuser plate and a reflector. The lamp tubes are disposed in the space encompassed by the diffuser plate and the reflector and are arranged with a selected interval. The diffuser plate is disposed above the lamp tubes for passing and diffusing the light emitted from said lamp tubes. The reflector plate is disposed beneath said lamp tubes for reflecting the light emitted from said lamp tubes back to said diffuser plate. The reflector plate has a plurality of particles fabricated thereon for scattering the reflected light uniformly.

Abstract: A multi-lamp arrangement for optical systems comprising two lamps or more (10, 15) and a collective light guide (58), where each lamp is positioned such as to transmit light (20) into respective light guides (36, 46) that are both optically connected to the collective light guide (58). In one embodiment, one of the lamps is optically connected to the collective light guide by means of a mirror (38)-and-prism (40) arrangement and an intermediate light guide (30) and an intermediate mirror (32)-and-prism (34) arrangement. The invention also comprises an augmented color modulator (62) with a number of color fields, where the number of identical color fields are equal to the number of lamps. The invented multi-lamp system will produce a flux level that is equal to or better than known systems but with fewer lamps, thus yielding reduced material cost, manufaturing cost and operating costs, reduced power consumption and reduced product temeperature.

Abstract: An opposed reflecting mirror is provided so as to face a light source. The opposed reflecting mirror is configured to reflect light rays, emitted from the light source, so as to allow the reflected light rays to advance in a predetermined direction. A light guide body having a plurality of reflecting surfaces is provided to permit the incidence of light rays supplied from the opposed reflecting mirror and to reflect the incident light rays. The plurality of reflecting surfaces are located at different positions in a sliding split manner along the direction of light rays supplied from the opposed reflecting mirror. By virtue of this construction, a light emitting apparatus can be provided in which, while making the best use of a feature of LED, i.e., a small thickness, impressive illumination of an elongated shape by one light emitting device and high external emission efficiency can be realized.

Abstract: An illuminating apparatus for improving brightness of light, a backlight assembly and an LCD device having the same are provided. The LCD device includes a backlight unit having a lamp for emitting a first light, a light guiding plate for guiding the first light, and a lamp reflector disposed adjacent to the lamp to partially cover the lamp and receiving the first light exited from the lamp, the lamp reflector having a plurality of protrusion portions for diffusing and reflecting the received first light to generate a second light; and a display unit for displaying images in response to the second light, the display unit having a lower substrate, an upper substrate opposite to the lower substrate, and a liquid crystal layer disposed between the lower and the upper substrates.

Abstract: An optical device is for spatially displacing the output of a light-emitting diode (LED) and coupling the output to a predominantly spherical emission pattern produced at a useftul height above the LED. The device is made of a transparent dielectric material, such as an injection-molded plastic. It comprises a lower transfer section that receives the LED's light from below and an upper ejector section that receives the transferred light and spreads it spherically. One or more LEDs. are optically coupled to the bottom of the transfer section, which operates by total internal reflection upon their entire hemispherical emission. One embodiment operates as a flashlight-bulb substitute with the ejector section radiating onto a parabolic reflector, which forms the beam. Thus hemisphencally emitting LEDs can be used in parabolic-mirror flashlights wherein these LEDs by themselves may be unsuitable for that role.

Abstract: The invention is directed to a linear luminous body comprising: a light source; a light source accommodating portion in which the light source is accommodated; and a light guide held by the light source accommodating portion so as to extend from the light source accommodating portion; wherein a light emitted from the light source is introduced into said light guide through an end surface of said light guide.

Abstract: A backlight for a display device, such as a liquid crystal display device, includes a light guiding plate having a front and a rear surface. The front and rear surfaces may be parallel to one another, or may instead be non-parallel. To the extent that such surfaces are non-parallel, one surface may be included at a single, or multiple angles with respect to the other surface. The backlight further includes a light source that is coupled to an edge of the light guiding plate by means of an energy conserving coupling section, and which provides light that is conditioned and transmitted through the light guiding plate. Light extractors are disposed on at least one side of the light guiding plate to assist in the transmission and conditioning of the light that is provided to the light guiding plate by the light source.

Abstract: There is described a light extractor (8) for a light guide lamp (1) whose useful surface, that is to say, the surface that, in use, faces the emission surface (5) of the light guide lamp (1), comprises a predetermined distribution of diffusing points (10) and a complementary distribution of reflecting points (9). The light extractor (8) allows obtaining an illumination having preselected features. There are also described methods for determining such a distribution of points so as to obtain a highly uniform illumination.

Abstract: An LED light source has a housing having a base. A core projects from the base; is substantially cylindrical and is surrounded by tubes. The core and the base are arrayed about a longitudinal axis. A circuit board in the base supports LEDs. Each of the LEDs is positioned with one of the tubes in a one-to-one relationship at one end of the core. A heat sink is positioned in a heat-transferring relationship with the circuit board and a first reflector is attached to another end of the core. To direct the light emitted by the LEDs from the source to the reflector, the interior of the tubes can be plated with a highly reflective material. In one embodiment, each of the tubes is fitted with a light guide, each light guide extending from a position immediately above one of the LEDs to a position adjacent the reflector.

Abstract: A lighting device includes a light source, a light conducting plate having an incident surface receiving light emitted from the light source, a back surface and a light-emitting surface, and a reflection member having a first portion facing the back surface, and a second portion located on a side opposite to a side of the light conducting plate on which the light source is located. The second portion is spaced apart from the light conducting plate so that light emitted from the light conducting plate is oriented toward an emission surface of the lighting device.

Abstract: Apparatus for displaying an image comprises a liquid crystal display 12, a lenticular lens array 14 for directing different portions of the image in different directions and mirrors 16 for reflecting at least some of the directed image, to produce an effective image 18 larger than the original image. The apparatus can be a mobile phone 10 or a visual display unit.

Abstract: A mixing chamber includes a first surface and a second surface opposite the first surface. At least two light emitting diodes are disposed along the first surface. At least a portion of the first surface is reflective, and the second surface includes a reflective region and a plurality of openings formed in the reflective region. In some embodiments, the first surface and the second surface are separated by at least one side surface. Light emitted from the light emitting diodes is reflected off the first surface, reflective region of the second surface, and side surfaces of the mixing chamber until it is emitted from the openings of the second surface.

Abstract: The proposed device uses a plastic of any color with a cavity introduced in it and preferably with a polished inner surface, instead of a reflector or a light guide, to utilize increased reflection with grazing incidence (large angle of incidence versus the normal to the surface). The light from a light source is transported to the symbol by reflection in this cavity and on the inner surface. The light source is preferably of a flat structure.

Abstract: A lighting device is described which comprises a light emission surface (11) and a plurality of substantially point-shaped light sources (21) such as, for example, LEDs, and which is suitable in particular for backlighting liquid crystal displays such as LCD picture screens, or for use as a planar light radiator. The lighting device is characterized in particular in that an optical waveguide plate (1) is provided with a plurality of cavities (20) for the light sources (21), which cavities are covered with a first reflecting layer (204) on their upper sides (203) facing the light emission surface (11), while the coupling of the light into the optical waveguide plate takes place through side walls (201) of the cavities. A very homogeneous distribution of the luminous intensity on the light emission surface is achieved thereby.

Abstract: A lighting device has a light source for emitting lighting light for illuminating a display, and a light guide plate for changing the direction of the lighting light to the display. A polarization separation film is provided for separating polarization of the lighting light into P-polarized light and S-polarized light for illuminating the display.

Abstract: An illumination system using filament lamps including a filament lamp, a reflector having a first and second focal points, the filament lamp disposed proximate to the first focal point of the reflector to emit rays of electromagnetic radiation that reflect from the reflector and converge substantially at the second focal point, wherein a portion of the electromagnetic radiation emitted by the filament lamp impinges directly on the reflector and a portion of the electromagnetic radiation does not impinge directly on the reflector and wherein the system further includes an additional reflector constructed and arranged to reflect at least part of the portion of the electromagnetic radiation that does not impinge directly on the reflector toward the reflector through the first focal point of the reflector.

Abstract: A backlight unit includes a light emission part having a lamp for emitting light beams and a lamp housing for mounting the lamp therein and for reflecting the light beams from the lamp; a light guide panel for guiding the light beams from the light emission part; a reflecting plate under the light guide panel for reflecting the light beams that progress to a lower surface and a side surface of the light guide panel; a diffusion sheet having a thickness of about 113 ?m for diffusing the light beams that have passed through the light guide panel; and a prism sheet having a thickness of about 165 ?m and having a half-power angle of at least about 40° for controlling progress directions of the light beams that have passed through the diffusion sheet.

Abstract: A system for providing a uniform source of light. The system includes a light pipe having an input surface for receiving light from a light source and an output surface for transmitting the light. The system also includes an optical element having an entrance surface positioned adjacent to the output surface of the light pipe for receiving the light and an exit surface for transmitting the light.

Abstract: A light pipe is obtained by laminating on one or both surfaces of a light-transmitting resin plate a polarized-light scattering plate having fine birefringent domains dispersed therein and hence showing anisotropy in scattering. The polarized-light scattering plate comprises a transparent film having fine domains dispersed therein comprising a liquid crystal polymer which exhibits nematic at temperatures lower than the glass transition temperature of the polymer constituting matrix of the transparent film and has a glass transition temperature of 50° C. or higher. The light pipe as a laminate may further comprise a specular reflection layer, a polarization-retaining lens and a light diffusion layer laminated thereon. The light pipe may further comprise a light source mounted at least on one side face thereof to provide a planar polarized-light source.

Abstract: A thin backlight module is disclosed. The backlight module includes a frame, a light guide plate, and a prism plate. The light guide plate is disposed in the frame, and has a first protrusion and a notch. The prism plate includes a second protrusion and an edge. The prism plate is laid on the light guide plate with the second protrusion and the edge of the prism plate abutting the first protrusion.

Abstract: A light guide panel is disclosed. The panel comprises a plate for dispersing light and at least one light-emitting diode (LED) coupled to the plate for providing the dispersed light. When the panel is coupled to a keyboard, the at least one LED is under a portion of the keyboard such that when the at least one LED is illuminated, the light from the LED does not distract a user. Accordingly, by strategically placing LEDs within the panel and providing the LEDs under appropriate portions of the keyboard, the device utilizing the keyboard can be smaller than when a conventional light guide panel is utilized. In addition, a further improvement in illumination is provided when a mechanism is provided which reflects light escaping from the edges of the panel back into the panel.

Abstract: A direct-lighting type back light unit includes a plurality of light sources for emitting light outward; a reflecting plate defining a plurality of curved reflecting recesses in which the light sources are respectively arranged. Each recess forms a first convex reflecting surface at a center of the recess, a second inclined reflecting surface formed at an edge of the recess and a third inclined reflecting surface formed at the edge and extending from the second reflecting surface.

Abstract: The present invention includes a backlight system incorporating a back reflector and/or a lamp cavity reflector constructed of a multilayer optical film.

Abstract: An illumination system for a reflective display is particularly useful for microdisplays that use reflective displays. The light source and the reflective image display unit are mounted in a coplanar manner, thus permitting the light source and the display unit to be mounted on a single board, or even on a single substrate. The display unit may include a first light source directing light generally along a first axis and a reflective image display unit disposed with an optical axis substantially parallel to the first axis. A reflective polarizing film is disposed to direct light from the first light source to the reflective image light display unit.

Abstract: Embodiments of the present invention relate to a device for polarizing light in a backlighting system of an electronic display to conserve energy. Embodiments of the invention may comprise an optically transparent material that includes an interface therein to separate randomly polarized light into vertically polarized and horizontally polarized components. The optically transparent material may have a re-polarizing layer thereon to change a polarization of one of the separated components, and a reflective edge disposed at an angle substantially parallel to the interface.

Abstract: A lighting apparatus 10 comprising light sources 12a, 12b for emitting light, a plurality of light reflection portions 20 formed on the reflection side for reflecting light incident from the light sources, and a linear photoconductor 14 for causing the light to exit from the exit side opposed to the reflection side, the planes of the plurality of reflection portions being respectively tilted at angles which converge the light to the human eyes watching. Angles of the light reflection portions are set so that exit angles of light exiting from the linear photoconductor are required angles, whereby the lighting apparatus can have a uniform light intensity distribution. The application of the lighting apparatus can provide a liquid crystal display of good display characteristics.

Abstract: A light pipe having one or more exterior protrusions that function as a secondary light source and an alignment component. The one or more exterior protrusions may provide a secondary light source by reflecting light from a primary light source. The one or more exterior protrusions also may function to align the light pipe with a lamp assembly or an object on which the light pipe is mounted. Further, a lamp assembly having a light pipe receiving portion, with one or more slits to allow an opening to expand upon insertion of the light pipe, and to provide a retention force upon contraction.

Abstract: A luminaire includes a frame member, an inner panel, light emitting diodes (LEDs), an information carrier, and two outer panels. The inner panel has two surfaces and edges that join the two surfaces such that the inner panel is able to reflect light substantially perpendicularly to its two surfaces. The LEDs are arranged along at least one edge of the inner panel and are detachably attached to the frame member. The information carrier is associated with at least one surface of the inner panel. The two outer panels are associated with the two surfaces of the inner panel. To protect the luminaire against environmental influences and at the same time to maintain the optical appearance of the luminaire, the inner panel and the two outer panels are held by the frame member for water-tight encapsulation.

Abstract: A light guiding plate guides light from a light source and irradiates the light onto a display portion. The light guiding plate has an incidence plane, which permits light to enter the light guiding plate, an opposite and plane opposite to the incidence plane an exit plane facing the display portion, and a reflection-exit plane opposite to the exit plane. A plurality of grooves are formed on the reflection exit plane. In any adjacent pair of the grooves, the depth of the groove closer to the opposite end plane is equal to or greater than the depth of the groove closer to the incidence plane. The depth of the grooves substantially increase from the incidence plane toward the opposite end plane. This improves the uniformity of brightness distribution.

Abstract: A light module with LED light source for LCD panel. Light-receiving surfaces of LGP (light guide plate), light-receiving surfaces of LGS (light guide stick) or light-emitting surfaces of LGS are coated with the mixed fluorescent powder and the white light with triple wavelength is made by the light rays emitted from UV LED to excite the mixed fluorescent powders. It could replace the white light LED with double wavelength of Nichia to reduce the production cost and increase the color performance of LCD.

Abstract: A back light module disposed under a display panel has at least a light source generator for generating light beams, a diffusing plate for scattering the light beams to the display panel, a light guide plate (LGP) for scattering the light beams to the diffusing plate, a reflecting sheet for scattering the light beams to the light guide plate. The reflecting sheet has at least an opening for dissipating heat generated by the operation of the light source generator of the back light module.

Abstract: A backlight assembly for providing liquid crystal display enhanced brightness of light with a lower consumption of electricity includes a light guide plate having brightness enhancing recesses formed on a bottom surface and light collecting grooves formed on an upper surface. The brightness enhancing recesses efficiently reflect the light having different directions and the light collecting grooves collects the light reflected by the brightness enhancing recesses.

Abstract: The invention is directed to an illumination apparatus that includes a light guide within a recessed housing. A light source, such as a light emitting diode can be used to provide light to the light guide. The light is transmitted through the light guide via total internal reflection (TIR), and can be emitted in a controlled manner to ensure that a desired angular distribution of light is achieved without substantially illuminating interior side walls of the recessed housing. In this manner, efficient lighting can be provided. In one embodiment, the invention is can be implemented within a cosmetic compact that includes a mirror. The compact may incorporate aspects of the invention by implementing a light guide within a ring-shaped recess of the compact to provide facial lighting to a user.

Abstract: An optical coupler is designed to be utilized with multiple light sources. The optical coupler can include a reflecting mirror, a plurality of coupling rods, and an integrating rod. The reflecting mirror receives light from the light sources and reflects light to the coupling rods. The coupling rods provide a path for the light to the integrating rod.

Abstract: A lamp assembly having a reflector holding a lamp element, or burner. A reflector extension is designed to mate to the reflector. The reflector extension has a first open end toward the reflector. The first open end typically is in contact with the reflector to form a seal around the perimeter preventing glass shards from escaping between the reflector and reflector extension. The second end of the reflector extension also is open to allow the light from the arc to exit the reflector extension. A transparent plate placed across this second open end prevents glass from leaving the reflector extension. The transparent plate typically is glass, and may have an antireflective coating applied to the plate to limit the light reflected by the plate. Ventilation ports in the reflector extension allow cooling airflow into the cavity around the burner.

Abstract: A spread illuminating apparatus having a light conductive plate made of a light transmissible material and a bar-like lamp disposed along and close to an end face of the light conductive plate. The spread illuminating apparatus also having a light reflection pattern having a stair-like configuration from a cross-sectional perspective. The light reflection pattern is formed on a major face of the light conductive plate. The spread illuminating apparatus also has a light dispersive-reflection pattern which has, for example, a plurality of convex surfaces which are formed on a major face of the light conductive plate opposite to the major face of the light conductive plate, which is provided with the light reflection pattern.

Abstract: An illuminating apparatus having a light source, an optical unit disposed on the object side of the light source having a lens portion having positive refractive power in the central portion thereof, incidence surfaces on which light from the light source is incident and reflecting surfaces for totally reflecting the incident light, on both sides of the lens portion, and an emergence surface from which the light reflected by the reflecting surfaces emerges, wherein a beam emerging from the lens portion and a beam emerging from the emergence surface intersect with each other substantially at the same place in their condensed state, and a second optical unit having a plurality of prism portions, wherein the relative interval between the optical unit and the second optical unit are changed to vary an irradiation angle.

Abstract: A composite lighting device is provided, which is inexpensive and has high uniformity in brightness, in which light emitted from an end face of a backlight having an organic EL device is used to illuminate input buttons and the like. The lighting device includes a transparent substrate having one principal plane on which a transparent electrode film, a luminescent layer, and a reflective electrode film are at least formed. In the lighting device, a liquid crystal display unit is adjacently disposed on the other principal plane, and a light-guide element is adjacent to an end face of the substrate, so that input buttons embedded into the light-guide element are illuminated.

Abstract: A panel, such as a component carrier or substrate, is provided with one or more penetrations. A light source associated with a surface of the panel and the corresponding end of each penetration provides light to the interior of the penetration, which guides the light to the other end of the penetration and corresponding surface of the panel. The penetration can be coated with a reflective material to improve its performance as a light guide. Alternatively or additionally, the penetration can be filled with a refractive material. A diffuser can be provided to diffuse light exiting the penetration. The light sources provides light to selected penetrations on demand such that the penetrations function as displays or elements of a display.

Abstract: A liquid crystal display (LCD) device includes a backlight module for providing backlight to the LCD device; a first liquid crystal panel disposed on a top surface of the backlight module for displaying images; and a second liquid crystal panel disposed on a bottom surface of the backlight module for displaying images. The LCD device also includes at least one driver circuit board disposed on at least one side of the backlight module for driving selected cells within the first and second liquid crystal panels in order to display a same image simultaneously.

Abstract: An illumination device for illuminating a liquid crystal panel having a frame area and an effective display area surrounded by the frame area includes a light source for emitting light; an optical conductor including a light incident surface on which light emitted by the light source in allowed to be incident, a light output surface from which the light is allowed to be output, and a projection projecting from the light incident surface; and a light scattering section for scattering light, the light scattering section including an engaging portion which is engageable with the projection. The optical conductor and the light scattering section are located such that is an end of the projection of the optical conductors located outside the effective display area of the liquid crystal panel.