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: Methods of controlling a backlight unit including a plurality of solid state light emitting devices include receiving a request to set a color point of the backlight unit at a requested color point, and determining if the requested color point is within an acceptable range. In response to the requested color point being outside the acceptable range, a modified color point is selected in response to the requested color point, and a color point of the backlight unit is set at the modified color point. Corresponding solid state lighting units are also disclosed.

Abstract: A backlight assembly includes a plurality of light source units and a partition member. Each of the light source units includes a plurality of light sources generating different wavelengths of light from each other and a circuit board on which the light sources are mounted. The partition member is disposed between the light source units to partially transmit and partially reflect the light generated from the light source units.

Abstract: A backlight module includes a light source, a light guide plate and a reflector. The light guide plate includes a light incidence surface, a light-emitting surface opposite to the light incidence surface, and a pair of side surfaces connecting the light incidence surface to the light-emitting surface. The light-emitting surface of the light guide plate includes a groove formed therein. The reflector is placed between the light source and the light incidence surface of the light guide plate, and located corresponding to the groove of the light-emitting surface of the light guide plate. The reflector includes a light-receiving surface. The light source is facing the light-receiving surface of the reflector.

Abstract: A lighting device is disclosed. The lighting device can be battery-powered and can include one or more LEDs within a light source housing. The device can also include a base connected to the light source housing, and a clip removably connected to the base. The base can act as a stable support for the lighting device when the lighting device is positioned upright over a flat support surface with the clip disconnected from the base. Similarly, the clip (or the clip in conjunction with a portion of the base) can act as a stable support for the lighting device when the lighting device is positioned upright over a flat support surface with the clip connected to the base. The clip can be configured to releasably connect to the base in a first orientation and a second orientation substantially opposite to the first orientation.

Abstract: An optical signaling apparatus for use in highways or roadways (2), particularly in low visibility conditions, wherein a roadway (2) comprises at least one traffic bearing surface (S) with at least one edgeline (3). The apparatus comprises light-emitting means (4) for emitting at least one laser beam (5) and support means (6) designed to be arranged along the roadway (2) for supporting the light-emitting means (4). The apparatus also includes optical means (7) arranged along the roadway (2) for interacting with the beam (5) in such a manner as to selectively conform and project it either in a first direction (D1) which is incident on at least one edgeline (3) to interact therewith, or in a second direction (D2) substantially parallel to the traffic bearing surface (S) to define a substantially continuous optical path that can be viewed by the users, or even in both such directions (D1, D2).

Abstract: A light control film enabling improvement in front luminance, having appropriate light diffusing property and free from problems of interference pattern, glare etc. is provided. A light control film 10 having a rough surface as one surface and a substantially smooth surface as the other surface is constituted so that total light transmission of the film for lights entered from the smooth surface should be not more than 65%, total light transmission of the film for lights entered from the rough surface should be not less than 80%, as measured according to the measurement method defined in JIS K7361-1:1997, and a value obtained by subtracting the total light transmission for smooth surface incidence from the total light transmission for rough surface incidence should be not less than 30%.

Abstract: An LED surface lighting device (100) comprises a plurality of LED light source modules (120) assembled together side-by-side. Each of the LED light source modules comprises a light guiding plate (122) and at least one LED (124). The light guiding plate comprises a light emitting surface (1222) and a plurality of lateral sides (1225, 1227) adjacent to the light emitting surface. At least one of the lateral sides defines a groove (123) for receiving the at least one LED. The groove keeps a predetermined distance (D) from the light emitting surface.

Abstract: An illuminating device has a light pipe that is elongate in shape and has a light-emitting face running in the direction of a longitudinal axis. A light-reflecting face is disposed opposite the light-emitting face, and the light-reflecting face has a plurality of prismatic cuts. Each prismatic cut includes a front face oriented at an angle B from a normal axis, the normal axis being 90 degrees from the longitudinal axis of the light pipe. The angle B is in the range of about 5 degrees to about 45 degrees and is such that it allows light to refract through at least one prismatic cut and then be internally reflected.

Abstract: A light guide and module for motor vehicles that directs light generally along a horizontal axis. The module includes an array of light sources, an array of reflectors and a light guide. The light guide defines a body having opposed upper and lower walls. Formed in the lower wall is at least one prismatic structure having a reflecting surface oriented to reflect light based the principle of total internal reflection and to redirect light toward the upper wall. Formed in the upper wall is at least one decoupling prism element. The decoupling prism elements corresponding in number to the prismatic structures and are located in the upper wall so as to receive redirected light from its corresponding prismatic structures. The decoupling prism element includes a second reflecting surface that reflects light redirected from the first reflecting surface.

Abstract: Modular panels can be attached to a substratum, e.g. a wall or ceiling, to display an actively lighted star field. Each panel displays a respective subarea of the star field, the panels being attached onto the substratum in edgewise juxtaposed relationship according to the star field. Each panel defines a set of apertures extending through the panel and distributed over the panel according to the panel's respective subarea. On a back face of each panel is a set of light pipes respectively corresponding to the panel's set of apertures, each light pipe being illuminated by a light emitting diode. Panels can include twinkling stars, constant stars, and/or shooting stars, and energization of the corresponding light emitting diodes is constant or varied accordingly.

Abstract: An illuminated sign (88) includes a flexible electrical power cord (100) including first and second parallel conductors (112, 114) surroundingly contained within an insulating sheath defining a constant separation distance between the parallel conductors (112, 114). A plurality of light emitting diode (LED) devices (102) are affixed to the cord (100). Each LED device (102) includes an LED (104) having a positive lead (130P) electrically communicating with the first parallel conductor (112) and a negative lead (130P) electrically communicating with the second parallel conductor (114). A stencil (92) defines a selected shape, and the electrical cord (100) is arranged on the stencil (92). Power conditioning electronics (210, 220) disposed away from the stencil (92) electrically communicate with the first and second parallel conductors (112, 114) of the electrical power cord (100). The power conditioning electronics (210, 220) power the LED devices (102) via the parallel conductors (112, 114).

Abstract: The exterior rearview mirror has a mirror head, which is provided with a mirror glass and with at least one illuminant, which radiates light through at least one light permeable section to the exterior. Furthermore, the exterior rearview mirror has a mirror base. In order to provide the exterior rearview mirror, so that the light function is performed in an optimum manner through the simple provision of the mirror, at least part of the housing of the mirror head and/or of the mirror base is comprised of at least two plastic layers, having different light permeability. In the light permeable section, the plastic layer with the lower light permeability is missing, or it only has such thickness, that the light emitted by the illuminant radiates to the exterior with sufficient light intensity. The plastic layer with higher light permeability can be used as a light pane for the illuminant disposed behind it.

Abstract: An LED lamp includes a post (10), a heat sink (20) enclosing the post, an LED module (30) mounted on the post, a holder (40) secured on the LED module, and a lens (50) covering the holder. The heat sink is formed by a plurality of separated fins assembled together. Each fin comprises an outer portion (22) and an inner portion (24). An inner edge of the outer portion abuts interferingly against a periphery of the post, and a bottom of the inner portion contacts a top surface of the post. Heat generated by the LED module is conducted through the post to the plurality of fins, which dissipate the heat to the ambient air.

Abstract: The backlight assembly includes a lamp unit, a light guide plate and a receiving container. The light guide plate includes a light exiting surface, a light reflecting surface facing the light exiting surface, and side surfaces. The receiving container includes a frame plate and sidewall protruding from an outer edge of the frame plate to form a receiving space for receiving the lamp unit and the light guide plate. The first distance between an inner surface of the sidewall and an outer surface of the light guide plate at a first region is greater than a second distance between the inner surface of the sidewall and the outer surface of the light guide plate at a second region. The light guide plate is more spaced apart from the sidewall at the corners where much noise was made, in a general backlight assembly, so that the noise is reduced.

Abstract: A structure of a supporting assembly for a surface mount device LED and a manufacturing method thereof are provided. The structure of a supporting assembly comprises a plate and a substrate of LEDs. The plate has a plurality of supporting areas and a plurality of lenses each of which is respectively disposed on each supporting area. The substrate of LEDs comprises a metallic plate unit and a plurality of a surface mount device LED units each formed on the metallic plate unit. Moreover, the plate is combined with the metallic plate unit, so that each lens is respectively assembled with the corresponding surface mounting device LED unit. Via the above-mentioned structure, mass produced lenses can be assembled with and positioned on the corresponding LED units at the same time. The processes are modified and the production rate is increased.

Abstract: A vehicular interior rearview mirror system includes an interior rearview mirror assembly having one of (a) a variable reflectance reflective element and (b) a prismatic reflective element. The interior rearview mirror assembly includes an information display disposed behind and viewable through the reflective element. The interior rearview mirror assembly includes a video camera having, when the interior rearview mirror assembly is normally mounted in the vehicle, a field of view that encompasses one of (i) the windshield of the vehicle and (ii) the driver of the vehicle. The interior rearview mirror assembly may include other electrical accessories such as, for example, a light, a rolling code garage door opener, and a microphone.

Abstract: A cutoff/milling device with a motor-driven cutoff/milling element, a work support surface or a guide surface, and a light projection device, the light projection device projecting a light beam onto a workpiece which is located on the work support surface or under the guide surface such that the light beam marks the cutting/milling position or cutting/milling path on the workpiece. The light projection device has a switch for activation of the light projection in response to mechanical vibration produced either by operating of the device or manual knocking on the cutoff/milling device.

Abstract: An optical sheet includes a substrate onto which light is incident, and a convex part protruded from the substrate by a predetermined thickness. A thickness of the convex part increases from an edge to a center thereof.

Abstract: A lighting apparatus for a vehicle cab or cabin, having a plurality of reading lights for a plurality of passenger seats. A number of the reading lights is at least equal to the number of passenger seats, and a mean distance between the reading lights is less than a shortest possible distance between the passenger seats.