Abstract: This invention relates to searchlight type light devices including underwater light devices and automobile headlights. A light device in accordance with the present invention provides light beam compression along the optical axis and thus increases considerably the intensity or optical density of the beam. The light device includes a light source, a main concave reflector, and a lens projection system, the main concave reflector and the lens projection system being aligned relative to the optical axis and the light source being located between the reflector and the lens projection system, on the same optical axis. In addition, the main collecting pre-reflector lens is mounted between the light source and the main reflector, the main reflectors concave surface being implemented as a segment of sphere, and the light source being located in the focal point of such main reflector. Said main collecting pre-reflector lens has a focal length exceeding the main reflector's focal length by a factor of 1.25–2.

Abstract: The present invention is to provide a flashlight comprising a case, a swivel mount provided on a front end of the case and adapted to turn horizontally along a longitudinal central axis of the case, two opposite first and second arms extended upwardly from the swivel mount farther to the case, and a light emitting assembly pivotally provided between the first and the second arms such that the light emitting assembly is adapted to turn along a transverse axis between the first and the second arms, enabling the light emitting assembly to emit light illuminating any of substantially all regions to the front of the flashlight when both the swivel mount and the light emitting assembly turn appropriately.

Abstract: A lighted vase which utilizes a base on which is mounted a container with the container having an internal chamber which is open at its outer end. The base includes a cavity and mounted in the cavity is a light generator. The structure of the container and the base is of a rigid material which is capable of conducting light. Light from the light generator, when activated, is to be transmitted through both the base and the container.

Abstract: A headlamp includes a sub-reflector between a main reflector and a projection lens. The sub-reflector has a sub-reflection surface in a form of a paraboloid of revolution. The sub-reflector is movable between a low-beam posture and a high-beam posture. The sub-reflector forms a diffused light distribution pattern superposes the pattern on a low-beam light distribution pattern produced by the main reflector when the sub-reflector is in the low-beam posture and forms a condensed light distribution pattern and superposes the pattern on a high-beam light distribution pattern formed by the main reflector when the sub-reflector is in the high-beam posture.

Abstract: A side-lighting type surface light source device 100 includes a light source 40, a reflector member 50, a light guide plate member 30, and a fixing member 10. The reflector member 50 reflects a light ray from the light source, and includes opposed first end portion 520c and second end portion 520a, wherein the first end portion is arranged to project out of the second end portion. The fixing member 10 includes a fixing body 12 having a support surface (a back portion 12a) and a reflector holder 14 for holding the reflector member. The reflector member supports the reflective sheet 20 and the light guide plate member 30 with the first end portion thereof.

Abstract: A body panel smoothness inspection light support system is provided having a movable joint and a rotatable sliding contact electrical power connection, minimizing the tendency for a power cord to wear or fray.

Abstract: The invention concerns a vehicle headlight, comprising a two-dimensional array (2) of a plurality of electronic light emitter elements (4), which are arranged for emitting a plurality of parallel light beams (6), a collection lens (8), which is provided one focal length away essentially parallel to the two-dimensional array and positioned for receiving the light emitted by the array, and a control electronic for the light emitter elements operatively associated for energizing the light emitter elements (4) individually or in groups. This results in a headlight with variable light emission characteristics, which is mechanically particularly simple to construct, is operationally reliable, and is rapid to react.

Abstract: A flashlight has a lens moveable relative to an LED. The beam of light provided by the LED can be focused and provides a uniform light pattern across the range of focus. The lens is supported on a front housing section and the LED is supported on a back housing section threaded onto the front housing section. Twisting the front housing section closes a switch providing power to the LED, to turn the flashlight on. Twisting the front housing section also adjusts the focus of the beam. A timer circuit within the flashlight turns the flashlight off after a selected time interval, to preserve battery life.

Abstract: A method for installing a modular light assembly in a vehicle includes first providing a common printed circuit board base. One of a plurality of different types of illumination sources is then attached onto the printed circuit board base to form a modular light assembly. The modular light assembly is then mounted onto one of a plurality of trim bezels.

Abstract: A light-guide plate (1) arranged at a display face (2a) of a liquid crystal (2) and illuminates radiating light from a light source (3) to the display face (2a) is constructed by a light permeability base portion (10) having a first face (8), a second face (9) of the rear face side of the first face (8), and a third face (5) guiding light from the light source (3) from side face, an adhesive layer (11), and light permeability sheet (12) forming plural prism grooves on a light emission face (6) with the predetermined interval and providing on the adhesive layer (11).

Abstract: A structural shape on the surface of an optical substrate is such that the brightness of diffuse light departing from the surface of the optical substrate at certain off axis angles is reduced, at the expense of a small reduction in peak brightness measured near the viewing axis. The net result is an overall increase in useful illumination. A cross section of a prism as the structural shape has a curved sidewall or facet. A material with a relatively high index of refraction combined with a prismatic structure having a modified prism geometry improves brightness.

Abstract: A flashlight with unique flashlight electrical connections, including a switch structure featuring a switch requiring a small amount of force, and a short stroke distance to actuate, attached to a member on which a circuit adding additional functions to the flashlight may be located. The member has conductive springs attached to either end that are used to complete the electrical circuit with the battery and the lamp, while their compressive force is absorbed by a housing protecting the switch structure. A conductive strip is used to improve the conductivity of the circuit in a metal flashlight which has been provided with an electrically resistive protective coating.

Abstract: A point-light-source type light emitting portion faces a light incident face located at a corner portion of a light guide plate. A light diffusion pattern for emitting the light in the light guide plate from a light emission face is on the lower surface of the light guide plate. A diffusion prism sheet is on the light emission face. A prism sheet including prisms each having a concentric shape with the light emitting portion at the center is on the lower surface of the diffusion prism sheet, and an uneven diffusion plate is on the upper surface of the diffusion prism sheet. Light emitted from the light emission face of the light guide plate along the light emission face is deflected in the direction perpendicular to the light guide plate by the prism sheet, and the angle of beam spread of the light is spread by the uneven diffusion plate.

Abstract: A backlight assembly and an LCD apparatus capable of reducing power consumption and increasing brightness of a light. The backlight assembly includes a light guide plate for receiving an external light and an artificial light, a first receiving container for receiving the light guide plate and supplying the artificial light to the light guide plate, and a second receiving container for supplying the external light to the light guide plate, the second receiving container comprising an light side wall inclined to the light guide plate. The LCD panel assembly displays images using the external light and artificial light from the light guide plate.

Abstract: A light-inverse type guidelight plate adopted for a backlight module having at least one lighting member includes a reflection portion, a reflecting member partially covering the reflection portion, and a light-guiding portion connecting the reflection portion for providing a displaying region. Wherein the light-guiding portion locates behind the lighting member's back, which faces the reflecting member and dispose in a slot of the reflection portion. The light-guiding portion is shaped variously to meet requirements. The reflection portion has a reflection face, which reflects light emitted from the lighting member to the light-guiding portion to get a high uniformity thereof.

Abstract: An illumination maintenance system for maintaining a desired illumination profile in a space throughout at least a portion of a day where the illumination sources include daylight and artificial light, the system comprising a first sensor for sensing an illumination level in at least a portion of the space, at least one window treatment for at least one opening for allowing daylight into the space, the window treatment selectively altering the amount of daylight entering the space, a plurality of electric lamps providing artificial light to supplement the daylight illumination of the space; the electric lamps being dimmable, a control system controlling the at least one window treatment and the plurality of electric lamps to maintain the desired illumination profile in the space, the control system controlling the plurality of electric lamps so that the dimming level of each lamp is adjusted to achieve the desired lighting profile and compensate for the daylight illumination in the space throughout at least t

Abstract: An electronic device includes a display portion with a monitor, an operating portion, a button portion and an illuminant. The operating portion is pivotally connected to the display portion, and includes a casing and a touch unit located inside the casing. The button portion is located in the casing and facing to the touch unit. There is no through seam provided between the button portion and the casing. At least one part of the button portion is pervious to light. The illuminant is installed in the casing and near the button portion.

Abstract: A headlamp adjuster which includes a housing, an expandable member on the housing, and an adjuster member which is extendable and retractable relative to the housing. One end of the adjuster member is engageable with a reflector of a headlamp assembly, and the other end of the adjuster member is receivable in the expandable member. The expandable member is configured to expand to accommodate retraction of the adjuster member. The expandable member may be a bellows which is, for example, molded to the housing. The housing may be molded over the bellows, or vice versa. Alternatively, the bellows may be attached to the housing using, for example, a snap ring, adhesive or some other suitable means.

Abstract: A message system having a wall with opposite first and second sides. The wall has at least one of (a) a mirrored surface which is capable of producing a discernible, reflective image of an object placed at the first side of the wall, and (b) a blocking surface which substantially obstructs viewing of an object at the second side of the wall through the wall from the first side of the wall. The message system further includes a message generator capable of making a message viewable from the first side of the wall through at least a part of the wall.

Abstract: The backlight assembly includes a first lamp unit and a second lamp unit. The first lamp unit generates light. The light guide plate has a light exiting surface, a light reflecting surface and side surfaces. The light reflecting surface surfaces the light exiting surface. The side surfaces connect the light exiting surface and the light reflecting surface. The side surfaces include a first light incident surface. The first lamp unit is disposed adjacent to the first light incident surface, and the first light incident surface inclines inwardly from the light exiting surface to form an inclination angle that is smaller than or substantially equal to (90?2 sin?1(n2/n1))°, wherein ‘n1’ is a refractive index of the light guide plate, and ‘n2’ is a refractive index of a material between the lamp and the light incident surface.