Abstract: The present invention relates to a lens-arrayed backlight module, consisting of a housing, a plurality of lamps, and a plurality of lens plates. The lamps are disposed in parallel between the housing and the lens plates to provide illuminating rays. The lens plates correspond to the lamps respectively, each of which being mounted at the center axis of the corresponding lens plate so that the illuminating rays provided by the lamps diffuse through the lens plates. The present invention also provides a liquid crystal display device using the lens-arrayed backlight module.

Abstract: A light guide 11 of a rectangular cross-section has side faces 11a, 11b including short sides in the longitudinal direction of which one side face 11a is provided with a light-scattering pattern 20, formed by screen-printing in white paint, for scattering the light incident to the light guide 11. The other side face 11b facing the side face 11a is exposed from a casing 12 to serve as a light-emitting surface. In the present embodiment, it is possible to secure a sufficient amount of light because the whole area of the side face is used as the light-emitting surface. The remaining side faces 11c, 11d of the light guide 11 are side faces including the long sides. Since the side faces 11c, 11d easily produce a surface sink during molding, neither the light-scattering pattern 20 nor the light-emitting surface is provided thereon.

Abstract: A surface illuminant comprises a light source 11 consisting of LEDs, a light guide plate 12 which is optically coupled to said light source for guiding the light to one side thereof and a reflective film 13 which is disposed on the other opposite side of said light guide plate. The light guide plate 12 is made of a material into which a wave length converting material 14 or a light storage material 15 such as fluorescent material is incorporated. A desired color light can be obtained by converting the wave length of the light from the light source 11 or light can be emitted by storing the light when the light source is turned off.

Abstract: An illumination module of light emitting elements is provided. The present illumination module includes a printed circuit board having a one-dimensional array of light emitting elements arranged thereon and a reflecting layer on the surface of the printed circuit board with the light emitting elements arranged thereon. The reflecting layer provides reflecting means for the light emitting elements, improving utilization of the light emitting from the light emitting elements, and thus increasing the luminance of the illumination module of light emitting elements.

Abstract: A lighting unit includes a reflector, a plurality of light-emitting elements and a controller. The light-emitting elements are respectively provided on the reflector for a plurality of light-emitting regions. The controller supplies a periodic drive signal to each of the light-emitting elements, thereby defining a state of the light-emitting element. The lighting unit illuminates a display panel including a light modulating layer with light that has been emitted from the light-emitting elements. The controller supplies drive signals of substantially different types to at least two of the light-emitting elements.

Abstract: A light guide plate (32) in accordance with the present invention includes a base (23), and an intervening layer (22) formed on the base. The intervening layer includes a light emitting surface (24) defining a plurality of V-shaped grooves (241) thereat. An index of refraction of the intervening layer is less than an index of refraction of the base.

Abstract: A method for producing a light channelling panel by making an array of angled cuts in a first transparent plastic sheet, making a similarly spaced array of angled cuts in a second plastic sheet, transposing or flipping the second sheet and fixing it in contact with the first sheet to form a panel with an array of internal light channels. Alternatively, by making an array of angled cuts in the surface of a transparent plastic sheet and an array of similarly spaced angled cuts in the opposite surface of the transparent plastic sheet to form a panel with an array of internal light channels. Said light channelling panel when positioned in a window of a building channels substantially all sunlight incident on the panel through the panel and over the ceiling in the building thereby illuminating the building with daylight and shading work areas near the window.

Abstract: A spread illuminating apparatus comprises a plurality of LED's as light sources, a light conductive plate, and a light controlling means disposed between the LED's and the light conductive plate. The light controlling means includes a plurality of transparent resin films which have respective different refractive indexes, which are laminated over one another in a direction parallel to a major surface as a light exit surface of the light conductive plate thereby forming a refractive index profile in the direction parallel to the light exit surface of the light conductive plate, and two adjacent ones of which are put together by adhesive that can transmit light emitted from the LED.

Abstract: A display apparatus is for mounting on a rotatable object. The display apparatus comprises: (a) a display array for displaying at least one display pattern; (b) a self-contained rotational speed sensor for sensing a rotational speed of the rotatable object, the self-contained rotational speed sensor being entirely mounted on the rotatable object; (c) a wireless receiver for receiving information from a signal source spaced from the rotatable object and, (d) a microprocessor for controlling the display array based on the rotational speed of the rotatable object to display the at least one display pattern using persistence of vision of a viewer.

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 method for using LEDs to supplement natural light in a greenhouse and a support structure for attaching LEDs in a greenhouse so that the plants receive substantially even light distribution from the LEDs and minimal natural light is blocked by the lighting system. A narrow attachment rail is used to suspend a strip of LEDs from the frame structure of the greenhouse.

Abstract: The present invention relates to a reflector configuration of a back-light module, and particularly to the coupling of a lamp reflector and a lamp cover of the back-light module. The lamp reflector in the present invention wraps a lamp around and is fastened on the light-guiding plate. A lamp cover is fastened onto the light-guiding plate, and contacts without wrapping around the lamp reflector.

Abstract: A hollow backlight module includes a first light guide plate, a second light guide plate, two light sources, a reflecting plate and a diffusing film. The first light guide plate and the second light guide plate form a hollow light-guiding zone therebetween. The two light sources are located respectively at two sides of the hollow light-guiding zone. The reflecting plate is located between the outer surface of the second light guide plate. The diffusing film is located above the outer surface of the first light guide plate. Lights emitted from the light sources first enter the hollow light-guiding zone and then into the first and the second light guide plates. The reflecting plate reflects the lights back to the hollow light-guiding zone. The diffusing film diffuses the light projected from the first light guide plate and outputs uniform lights.

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: The light emitted from a spot light source (45) is emitted at a linearly extending region by a wedge-like light conductor (47) and deflected by a prism sheet (50). This light is emitted in a direction perpendicular to a light incident surface (44a) of the light conductor plate (44) and has a directivity narrow in a widthwise direction of the light conductor plate (44). The light conductor plate (44) is formed, at its bottom surface, with a multiplicity of diffusion patterns (46) in a rectangular triangular form. The light reflected upon the diffusion pattern (46) is emitted perpendicularly to a light emitting surface (44b) of the light conductor plate (44). At this time, part of the light incident on the diffusion pattern (46) transmits through the diffusion pattern (46) whereby the directivity of emission light is narrowed in a lengthwise direction of the light conductor plate.

Abstract: A light source device having a light guide (3) for guiding light emitted from a primary light source and emitting light obliquely from a light emission face (33) thereof, and a light deflecting device (4) disposed so as to be adjacent to the light emission face. Plural elongated prisms are arranged in parallel to one another at a light incident surface (41) of the light deflecting device. Virtual elongated prisms (I) each having a vertical angle ? of 50 to 70° arranged in the same arrangement pitch as the elongated prisms are assumed so that the peak emission light in the light emission distribution of light emitted from the light emission face is incident on one virtual prism face of the virtual elongated prism, internally totally reflected by another virtual prism face and then emitted in a desired direction from a light emission surface (42) of the light deflecting device.

Abstract: A light guide plate has a hologram pattern on a light exit surface. The hologram pattern anisotropically diffuses light in the direction parallel with a light incident surface of the light guide plate. On a back surface of the light guide plate are formed mirror-polished prism structures extending parallel with the light incident surface. A downward-pointing prism sheet with a given prism apex angle is placed on the light exit surface of the light guide plate. The use of the downward-pointing prism sheet together with the light guide plate having the anisotropic diffusion hologram pattern integrally formed thereon produces a liquid crystal display device with enhanced luminance properties.

Abstract: A backlight device 10 wherein a light source 13 and a light guide plate 12 for introducing light components from the light source 13 from the incident surface 12a provided on an end surface to emit the light from the surface 12b are included, a plurality of the wedge-shaped grooves 12e are formed on the surface 12b of the light guide plate 12 in stripes in plan view, and micro-irregularities 12g are formed between adjacent wedge-shaped grooves 12e is disclosed. A liquid crystal display device 1 having the backlight device 10 formed on the back surface of the liquid crystal display unit 20 is disclosed.

Abstract: A surface light source device includes a light-emitting element which generates light, and a light guide plate which, causes light emitted from the light-emitting element to be incident from an end face, causes the light to be reflected between opposite plate surfaces to guide the light along the plate surfaces and make the light emerge from the plate surfaces, and transmits light incident from one plate surface toward the other plate surface. A first optical element is placed on one plate surface side of the light guide plate, transmits part of light emerging from one plate surface of the light guide plate toward a front side, and returns the remaining light to a rear side. A second optical element is placed on the other plate surface side and transmits at least part of light emerging from the other plate surface side.

Abstract: A light guide plate (20) includes a light input end (21), a light output face (23) adjacent the light input end, and a back face (22) opposite to the light output face. A plurality of fine dots (26) are formed on the back face arranged in a uniform, rectangular array. The dots in a same column have a same size. The dots in a same row increase in size. A radius r of the dots in each row thereof varies as a function of a column number X of a given dot, in accordance with the formula: r=A+BX+CX2+DX3+EX4+FX5, wherein: the column number X varies in consecutive whole numbers from a value of one for the column nearest the light input end to a maximum value for the column most distal from the light input end; and A, B, C, D, E, and F are constants.

Abstract: An illumination device includes a light source and a planar illuminator for emitting light of the light source portion from one surface thereby to illuminate a liquid crystal panel. The planar illuminator has a reflection surface, on which minute concavo-convex shapes are substantially randomly formed. Surface emission is performed by diffuse reflecting the light irradiated from the light source portion by the reflection surface.