Abstract: An optical arrangement for a solid-state lamp is disclosed. A highly reflective secondary reflector is located adjacent to but not in contact with an optical element. In some embodiments, the reflector presents a white, diffuse reflective surface. A secondary reflector with a specular reflective surface can also be used. The secondary reflector can be made of various commercially available materials; for example, MCPET or polycarbide resin, and the arrangement can be used with an LED light source. In some example embodiments, the optical element and the highly reflective secondary reflector each have a plurality of lobes and the arrangement is suitable for an MR16 halogen lamp replacement. In other example embodiments, the highly reflective secondary reflector includes a plurality of recesses corresponding to a plurality of optical elements, and the arrangement is suitable for a PAR incandescent bulb replacement.

Abstract: A lighting apparatus includes a substrate, a light-emitting element, and a sealing member. The light-emitting element emits light in a first wavelength range. The sealing member contains a material that converts the light in the first wavelength range to light in a second wavelength range different from the first wavelength range. The sealing member has a curved convex contour in at least one cross section that passes through the center of the light-emitting element and is perpendicular to a principal surface of the substrate. A curved line indicating a change in output angle that occurs upon a change in observation angle is approximated by a quadratic or trigonometric function that passes through the origin.

Abstract: Provided are a liquid crystal panel assembly having no light guide plate (LGP) and a liquid crystal display apparatus. The liquid crystal panel assembly includes: a light source which generates light; a liquid crystal panel which displays the light generated from the light source as an image; at least one optical film disposed at a rear of the liquid crystal panel; a reflector sheet which is disposed at a rear of the optical film and reflects the light from the light source toward the optical film; a reflector which concentrates the light from the light source; an upper chassis and a lower chassis which house the light source, the liquid crystal panel, the optical film, the reflector sheet, and the reflector therebetween; and a middle chassis installed between the upper chassis and the lower chassis, wherein the reflector and the middle chassis form a single body.

Abstract: An LED package includes a LED structure that outputs light in a pattern about an axis and an optical coupling device with a central axis. The coupling device is positioned relative to the LED structure and accepts light from the LED. The coupling device includes a first dielectric interface surface that is substantially cylindrical with respect to the central axis, and a reflecting surface. The first dielectric interface surface accepts a first portion of light from the LED structure and directs it toward the reflecting surface. The reflecting surface accepts the light from the first dielectric interface surface and directs it toward the first dielectric interface surface in a direction substantially perpendicular to the central axis.

Abstract: An optical assembly includes a plurality of light sources emitting light in a first direction at a predetermined orientation angle, and a light guide panel having a light incident section and a light emitting section. The light incident section has a first surface to receive the light emitted from the light sources in the first direction and the light emitting section is to emit light received from the light incident section in a second direction. Also included is at least one cover having a first surface adjacent the light sources and a second surface adjacent at least one portion of the light emitting section.

Abstract: A lens has a refractive index of n, and includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip. A distance from a center of the base to a point of the curved center-edge surface is shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base. The lens satisfies A1+A2<90+sin?1(1/n), where A1 an obtuse angle between a main axis and a tangent line of the curved centermost surface, and A2 is an acute angle between a straight line linking the center of the base to the point of the curved centermost surface and the main axis.

Abstract: A lighting apparatus includes a light-diffusive plate having opposing faces bounded by one or more sides. The plate has disruptions on a first face of the opposing faces and a first channel along at least a portion of a first side of the one or more sides. A first cover has first and second surfaces disposed over the first channel with the first surface facing the first side of the light-diffusive plate. A plurality of light-emitting diodes (LEDs) is disposed on the first surface of the first cover and within the first channel. The LEDs electrically coupled with wiring are integrated with the first cover.

Abstract: A lighting device includes a lens portion and a base portion. The lens portion includes at least one light-distributing void for distributing light throughout the lens portion. The base portion includes a light source for emitting light into the lens portion.

Abstract: An instrument lighting device configured in such a manner that even index marks disposed away from the light sources can achieve sufficient luminance using a reduced number of light sources. An instrument lighting device comprising: a pointer needle (4) mounted to a drive shaft (2) of an instrument body (3); a display panel (6) having index marks (5); a light source (7b) for lighting the index marks (5); a reflecting surface section (9) for applying the light from the light source (7b) to the display panel (6); and a reflecting wall section (10) for guiding the light from the light source (7b) toward the reflecting surface section (9).

Abstract: A stereo display includes a display panel, a first polarizer modulator disposed above the display panel, and a second polarizer modulator disposed above the first polarizer modulator. The second polarizer modulator includes a first lens set, a second lens set opposite to the first lens set, a polarization material, and a birefringent material. An angle between an extending direction of the first lens set and an extending direction of the second lens set is not 0 or 180 degrees. The polarization material is between the first lens set and the second lens set. The birefringent material is disposed in at least one of the first lens set and the second lens set.

Abstract: A display module includes a display panel and a backlight module. The display panel has overlapped first and second substrates, wherein the first substrate extends beyond the second substrate at a first side. The backlight module is disposed on one side of the display module opposite to the display surface and includes a support unit disposed along the first side. The support unit has a first tier portion and a second tier portion, which is lifted toward the display panel with respect to the first tier portion and supports the display panel. A projection region of the display panel supported by the second tier portion on the first substrate covers or overlaps the edge of the second substrate at the first side and extends to an overlapping area of the first substrate and the second substrate.

Abstract: A backlight module may include an optical substrate, at least one light guide pipe, and at least one first light source. At least one accommodation trench is disposed on the optical substrate for accommodating the light guide pipe. The first light source is disposed at one side of the light guide pipe and is arranged for emitting at least one first light into the light guide pipe. The first light is transferred in the light guide pipe and leaves the light guide pipe when being reflected by the optical substrate.

Abstract: Provided are a backlight unit and a liquid crystal display apparatus including the same. The backlight unit comprises: a housing comprising an opening part; a module substrate in the opening part of the housing; a light emitting diode on the module substrate; and a reflection sheet in which the light emitting diode inserted thereto.

Abstract: An interactive switch system for a stowage compartment system for a mobile platform (for example, commercial aircraft) is provided. The switch system is mounted to a moveable structure, such as an overhead stowage bin, and is responsive to a local input from a user, as well as to a remote input from an external control/monitoring panel. The switch system has at least one indicator surface responsive to the local input and the remote input to display indicator data. The indicator surface has a portion that forms at least one user input device for enabling the local input. The switch system further comprises a control system disposed behind the indicator surface. The control system is responsive to the local input and the remote input to transmit the indicator data to the indicator surface.

Abstract: A measuring instrument includes a light source, a dial plate with a scale design, and a light guide member. The light guide member includes a receiving portion for receiving the light from the light source, and a flat plate portion for irradiating the light transmitted from the receiving portion to the dial plate. The flat plane portion includes a thick wall section located close to the scale design, and a thin wall section extending from the thick wall section in a direction away from the light source. The thick wall section is thicker than the thick wall section. A boundary end face connected to a region of the thick wall section and a region of the thin wall section in the second face of the light guide member reflects the light transmitted in the light guide member from the light receiving portion to irradiate the image design.

Abstract: An on-vehicle display apparatus with an increased flat display size. The on-vehicle display apparatus includes a flat display capable of displaying various types of information, a light-transmitting substrate provided on a front-face side of the flat display, a pointer provided in the light-transmitting substrate, and a pointer drive means provided on a back-face side of the flat display. The pointer drive means rotates the pointer. The apparatus further includes a movement mechanism for moving the light-transmitting substrate to the outside of a display range. A first magnet is provided for the pointer, and a second magnet is provided for the pointer drive means and is configured to be opposite to first magnet.

Abstract: A backlight module includes a light guide plate, a light source disposed at a side of the light guide plate, a diffuser sheet positioned over the light guide plate but not directly contacting the light guide plate, and a light mixing space positioned between the light guide plate and the diffuser sheet so that light emitted from the light guide plate efficiently mixes in the light mixing space before entering the diffuser sheet and being emitted out of the backlight module.

Abstract: A light guide sheet includes a material sheet having a film shape, first and second illuminations portion provided on the material sheet for diffusing light. The material sheet has a slit having substantially a strip shape provided therein and provided around the first illumination portion. The slit has a first edge and a second edge opposite to the first edge. The first edge faces the first illumination portion. The material sheet includes a first bridge and a second bridge linking the first edge of the first slit to the second edge across the first slit. This light guide sheet provides a movable contact assembly which is easily fabricated and provides preferable illuminating.

Abstract: A display device includes a generally annular display (10) and a light source (3a) disposed to oppose a rear surface of the display (10). The display (10) is indicated by a rotatable pointer (4) and includes an indicator portion (12) disposed along a trace of displacement of a tip end portion (4a) of the pointer (4), and a transparent member (20) having a light incidence surface (a light incidence portion) (21) on which light from the light source (3a) is incident. The transparent member (20) is disposed on a front side of the indicator portion (12) and spaced from a front surface of the indicator portion (12) with a clearance (K) therebetween, and extends toward a center axis of the pointer (4).

Abstract: A liquid crystal display device is provided, capable of minimizing deterioration in display quality of a liquid crystal panel due to external force generated by connection with an external chassis such as a customer's chassis. The liquid crystal display device has, at least, a front frame, a liquid crystal panel, and a backlight unit having at least a rear frame, arranged in this order. A back fixing frame to be fixed to the front frame is provided on the back face of the liquid crystal display device, and attachment portions to be attached to an external chassis are provided in the back fixing frame. This makes it difficult for external force generated by connection with the external chassis to be transmitted to the liquid crystal panel or the backlight unit, suppresses deformation of the liquid crystal panel or reflection sheet and prevents deterioration in display quality.

Abstract: A backlight module and a display device using the same are provided. The display device further includes a first panel and a second panel disposed on opposite sides of the backlight module. The backlight module has a light module and a back plate with a through hole formed on it. The light module includes a flexible circuit board having a first strip and a second strip. A plurality of first light sources and second light sources are respectively disposed on the first strip and the second strip. The flexible circuit board passes through the through hole, and the first strip and the second strip are on two opposite sides of the back plate. The first strip and the first light sources are distributed along a side of the first panel while a portion of the second strip is bent to extend along a side of the second strip.

Abstract: A pillar light emitting module including a light guide bar, a first sleeve, a second sleeve, at least two light sources and a plurality of first diffusion structures is provided. The light guide bar has a first end and a second end corresponding to the first end. The first sleeve holds the first end of the light guide bar and has a first bottom surface. The second sleeve holds the second end of the light guide bar and has a second bottom surface. Two light sources are respectively face the first end and the second end respectively and disposed adjacent to the first bottom surface and the second bottom surface respectively for emitting light to enter the light guide bar. The first diffusion structures are disposed on the first bottom surface and the second bottom surface respectively for guiding the light to the light guide bar.

Abstract: A lighting system for an appliance is disclosed. In one embodiment, the lighting system includes a light shelf including a substantially planar light guide having a support member for releaseably coupling the light shelf to the appliance, a light injector coupled to a first end the light shelf, the light injector including a substrate having at least one light source disposed thereon and a housing for at least partially enclosing the at least one light source, wherein light emitted from the at least one light source is directed into the light guide, and an end piece coupled to a second end of the light shelf opposite the first end.

Abstract: An apparatus for lighting display objects in a gaming machine is described herein. In one embodiment, a gaming machine includes a display object to be viewed and a light source to emit light. The gaming machine also includes a light-guiding panel. The light-guiding panel includes an edge to receive the light from the light source and a surface through which the light is reflected. In one embodiment, the surface includes a window through which the display object can be viewed. In one embodiment, the light is substantially uniformly reflected through all but the window of the surface.

Abstract: A light guide includes a main body and a curved refracting face formed in the main body. As light enters the main body, a bright zone and a secondary bright zone less brighter than the bright zone are formed in the main body. The curved refracting face can be an inner wall face of a curved groove or a cavity disposed in the main body. Through the formation of the curved refracting face, the light in the secondary bright zone can be directed such that, when the light guide is disposed in a thin film keyboard, the brightness of a portion of the keyboard that corresponds to the secondary bright zone has improved brightness.

Abstract: A master/museum picture frame containing integral lighting and a light director (FIG. 1) in accordance with Snell's law of Total Internal Reflection and Refraction By a Prism. Said lights, wired in series with a resistance wire parallel to the filament on the lights dumet, in accordance with the Shunt Theory, such that if one light burns out the remainder remain lighted, to present the artwork in the most favorable manner for the longest period of time when viewed in a depreciating environment. The master/museum frame is interchangeable, both forward and backward, with the capability of being used as a lighted frame or an unlighted frame by substituting a spacer in place of the light director and vice versa as shown in FIG. 3 and FIG. 4.

Abstract: Display buttons and vehicle consoles include etched lenses operable to diffract light provided by a light source within a vehicle console such that the light emitted from the display button diverges from the first pathway within the button housing into a secondary pathway outside of the display button.

Abstract: An indicating instrument, such as for an instrument cluster, may employ a dial with numerous lighted indicia and numerous lighted graduations, to individually demark the indicia. The indicia and graduations may be viewable on a first side of the dial, while on a second side of the dial, a frustum of a rectangular pyramid may be located immediately behind, relative to a viewer, each graduation. A light emitting diode may provide light into and through the protruding frustum, and a reflector case mounted to the dial may direct light from the light emitting diode into the frustum. Light directed into the frustum may pass through the frustum, through the graduation, and out of the graduation to the first side of the dial. Instead of a frustum, a recessed portion with four sloping and converging sides into the dial may be utilized to produce an illuminated graduation with a three-dimensional appearance.

Abstract: A lighting module includes a case including an opening where a light emits from, a base portion corresponding to the opening, and a seat on at least one side of the base portion. The lighting module further includes a light source unit disposed on the seat, a light guide plate placed within the case and optically connected with the light source unit, and a diffusing plate placed within the case and placed below the light guide plate.

Abstract: A sound and light control apparatus includes an audio signal input terminal for receiving an audio signal, a voltage dividing circuit electrically connected to the audio signal input terminal for dividing the voltage of the audio signal into two divided voltages, a control knob electrically connected to the voltage dividing circuit for adjusting the divided voltages, at least one audio signal output terminal electrically connected to the voltage dividing circuit and at least one loudspeaker for transmitting one divided voltage to the loudspeaker, a frequency-divider crossover circuit electrically connected to the voltage dividing circuit for filtering the other divided voltage according to a plurality of different audio frequencies to generate corresponding frequency division voltages, and transmitting each frequency division voltage to a corresponding frequency division voltage output terminal electrically connected to a light emitting diode and enabling the light emitting diode to produce light correspondin

Abstract: A light switch cover having a light switch identifier to identify light coupled to a particular light switch. To this end, the light switch identifier may be positioned adjacent the light switch and/or a designation (number, letter or both) may be established for the light switch identifier and the light switch. The light switch cover may include a small clear cover behind which a label is positioned which identifies the particular light (or other device) that the corresponding light switch is operable to control.

Abstract: A liquid crystal display and control method thereof, having a liquid crystal display panel, a light emitting diode device which is disposed on the rear of the liquid crystal display panel and which is divided into a plurality of partitioned areas that are capable of being driven independently, a light guide part disposed for each of the partitioned areas, an image calculating part for dividing the liquid crystal display panel into a plurality of regions and calculating the brightness of each region by using image data, and an inverter and an inverter controller to provide differentiated power to the partitioned areas based on the calculated brightness.

Abstract: A backlight module includes a light guide plate and a flexible illuminating bar. The light guide plate has a light emitting top surface and a plurality of light incident side surfaces. Each of the light incident side surfaces is connected to the light emitting top surface. The flexible illuminating bar includes a circuit board module and a plurality of point light sources. The circuit board module includes a plurality of circuit boards and at least one flexible electrical connection member. The circuit boards are disposed at the light incident side surfaces, respectively. The flexible electrical connection member electrically connects two of the circuit boards and is bendingly disposed between corresponding two of the circuit boards. The point light sources are electrically disposed on the circuit boards and suitable for emitting light towards the light incident side surfaces. In addition, another backlight module is also provided.

Abstract: A plurality of LEDs are arranged continuously in a row and a transparent LED cover is disposed over the front surface of the LEDs. The LED cover extends in the longitudinal direction of the arrangement of LEDs and is curved in an arc shape that is perpendicular to the longitudinal direction of arrangement of LEDs. The cover does not contain light diffusion material, but has a corrugated surface around the arc shape. The corrugated surface extends in the longitudinal direction of the arrangement of LEDs.

Abstract: A backlight assembly includes a plurality of lamps, a receiving container, a diffuser plate and a plurality of holding members. The lamps generate a light. The receiving container receives the lamps. The receiving container includes a bottom portion and a side portion protruded from a side of the bottom portion. The diffuser plate is over the lamps to diffuse the light generated from the lamps. The holding members are engaged with the bottom portion. Each of the holding members has a lamp holding portion that holds one of the lamps. 10 The lamp holding portion has an opening for receiving the lamp. The opening is inclined by a first angle with respect to a normal line of the bottom portion. Therefore, the lamps are securely combined with the lamp holding portion, and the lamps are easily assembled to protect the lamps from an externally provided impact.

Abstract: A light guide sheet and a movable contact element using the sheet are inexpensive and provide adequate illumination. In the light guide sheet, light-transmissive upper conductive layers, reflective layers, and lower conductive layers are laminated in this order in predetermined positions on the bottom surface of a light-transmissive, film-like cover sheet. The reflective layers have reverse particles dispersed therein, whose top and bottom surfaces are reversed between light color and dark color.

Abstract: In one method of and apparatus for varying the luminosity of illumination, each of a plurality of light sources has an on state in which it emits light and an off state in which it does not emit light. Each of the plurality of light sources is switched cyclically between the on state and the off state in a sequence over a cycle period. The switching sequence is selected such that the number of said light sources that are on is uniform over the cycle. The luminosity of the illumination is varied by varying the proportion of each cycle for which each light source is switched on.

Abstract: A light guide sheet and a movable contact element using the single sheet have a simple structure and can be variously illuminated. The light guide sheet includes irregular-shaped light extracting elements formed on a film-like base material; and light-transmissive, belt-shaped light guide parts each connecting a predetermined number of groups of the light extracting elements. In addition, dome-shaped movable contacts formed of a conductive sheet metal are arranged on the bottom surfaces of the light extracting elements.

Abstract: A device (100) for diffusing light comprising a light guide (101), light input means (102), and light output means (103). The light input (102) and light output (103) means are connected to the light guide (101), and the device (100) is arranged to allow light of at least two separate frequencies from a light source (108, 109, 110) to enter the light guide (101) through the light input means (102), propagate through said light guide (101) and exit at the light output means (103). The light guide (101) is circumferential, such that light is allowed to propagate for a distance greater than the external dimensions of said light guide (101) before reaching the output means (103), and hence, producing a mix of the light from said at least two frequencies. A display apparatus in which the invention is implemented is also disclosed.

Abstract: A planar illumination device includes at least one light source, a housing structure, at least one light guide plate, and at least one light exiting surface. The at least one light source is received in the housing structure. The housing structure includes at least one light emitting surface through which the light emitted from the at least one light source exits the at least one housing. The at least one light guide plate includes at least one light incidence surface through which the light enters into the at least one light guide plate, and contacts with the at least one light emitting surface. The light exits the at least one light guide plate through the at least one light exiting surface. The at least one light exiting surface includes a plurality of continuously connected bulge points formed thereon.

Abstract: An input device capable of enhancing symbol readability for an electronic product includes a plurality of keypads for displaying a plurality of first kind symbols and a plurality of second kind symbols; a detection unit for detecting an operation mode of the electronic device; and a control unit coupled to the detection unit and the plurality of keypads for controlling the plurality of keypads to display the plurality of first kind symbols or the plurality of second kind symbols according to a detection result of the detection unit.

Abstract: A sheet-shaped lightguide member has a first surface (11A), which is divided into at least two areas. The sheet-shaped lightguide member has the first surface (11A) and a second surface (11B) that face each other and a peripheral edge surface (11C). The lightguide member receives light through at least a part of the peripheral edge surface, guides the light, and emits the guided light from the first surface (11A) serving as a light exit surface. The lightguide member is divided into the at least two light exit areas (14A, 14B) and has a light-blocking part (18) provided along a boundary between mutually adjacent light exit areas to block transmission of light between the adjacent light exit areas.

Abstract: Fiber optic display systems and related methods are disclosed. According to one embodiment, a fiber optic display system can include a plurality of fiber optics. Output ends of the fiber optics can be spaced from one another and can be arranged in predetermined positions such that at least a portion of the output ends are positioned in a first plane and another portion of the output ends are positioned in a second plane. A light-transmissive material can contain the output ends. The output ends can terminate within the light-transmissive material and can be angled with respect to the light-transmissive material such that light transmitted within the fiber optics emits into the light-transmissive material. A light source can generate a plurality of light beams and selectively control input of the light beams into the input ends for transmission of light in the fiber optics such that an image is formed.

Abstract: A liquid crystal module includes a liquid crystal panel and a back light unit. The back light unit has a rear frame, a light guide plate and a lamp reflector assembly. The lamp reflector assembly including a light source, a lamp reflector and a lamp socket. The lamp reflector has a front plate, a rear plate and a side plate with a tab. At least one of the front plate and the rear plate has a fixing hole. The lamp socket has a fixing protrusion that is fitted into the fixing hole of the lamp reflector, and a slit that receives the tab of the lamp reflector.

Abstract: An input device capable of enhancing symbol readability for an electronic product includes a plurality of keypads for displaying a plurality of first kind symbols and a plurality of second kind symbols; a detection unit for detecting an operation mode of the electronic device; and a control unit coupled to the detection unit and the plurality of keypads for controlling the plurality of keypads to display the plurality of first kind symbols or the plurality of second kind symbols according to a detection result of the detection unit.

Abstract: Light emitting device packages, light emitting diode (LED) packages and related methods are disclosed. According to one aspect, a light emitting device package is provided. The package includes a mounting pad adapted for attachment of a light emitting device. A lens coupler is attached to the mounting pad and defines an opening for containing the light emitting device and a quantity of encapsulant. The lens coupler includes a surface defining a depression which comprises at least one edge that shapes an outer surface of the encapsulant.

Abstract: An illuminated control for a gas range or the like provides arcuate reflective chambers capped by diffusers to create a substantially continuous glowing circular sector indicating the status of a possibly low visibility gas flames. Line power may be used for direct drive of light emitting diodes illuminating the reflective chambers through the use of discrete series-connected voltage dropping resistors distributed to prevent heat concentration.

Abstract: The invention relates to a motor vehicle display device comprising a display area oriented in a viewing direction, wherein a swiveling indicator rotatable about an axis of rotation is provided in the viewing direction behind the displaying area, a printed circuit board, which is provided with a first lighting device arranged thereon, is positioned in the viewing direction behind the swiveling indicator and a first optical wave guide area enables a first light emitted by the first lighting device to be transmitted to the display area further the swiveling indicator.

Abstract: A keypad device for an electronic device includes a substrate, a first light-emitting device coupled to the substrate for generating a first colored light source, a second light-emitting device coupled to the substrate for generating a second colored light source different from the first colored light source, a first transparent board made of a translucent material of a first color for displaying a first symbol, a second transparent board made of a translucent material of a second color, for displaying a second symbol, and a transparent film deployed on the first transparent board and the second transparent board. The first color is a complementary color of the color of the first colored light source, and the second color is a complementary color of the color of the second colored light source.

Abstract: An object of the present invention is to improve the color reproduction capability of a liquid crystal display backlight using white LEDs. A backlight of the present invention includes: a light guide plate 6; a light diffusing optical waveguide 3 disposed adjacent the light guide plate 6; a plurality of white LEDs 1 disposed on the light diffusing optical waveguide 3; and single color LEDs (red LEDs) 2 disposed on respective opposite sides of the light diffusing optical waveguide 3; wherein light from the white LEDs 1 passes through the light diffusing optical waveguide 3 and enters the light guide plate 6 through a side thereof, whereas light from the single color LEDs 2 is diffused by the light diffusing optical waveguide 3 before entering the light guide plate 6 through the same side thereof. Thus, the light diffusing optical waveguide 3 mixes light from the white LEDs 1 and single color LEDs 2, resulting in improved color reproduction capability of the backlight.