A luminant sign comprises a base including a pair of opposed casings and a image plate made of transparent acrylic resin and engaged with the base. The base has a circuit board with a plurality of illuminators disposed therein. A front face and a rear face of the image plate have a number of display areas defined thereon by peripheral grooves of pictures or words. Each display area has a plurality of reflective surfaces formed therein in directions non-parallel to the beam directions of the illuminators. With this arrangement, each display area of the image plate will achieve a uniform intensity.
A luminaire comprises a relatively thin and flat light-emitting panel (1) having a light-emitting window (2) and, opposite said light-emitting window, a rear wall (3) with opposed edge surfaces (4, 14). At least one of the edge surfaces (4) is light transmitting and associated with a plurality of light sources (5, 5', 5", . . . ). Light originating from the light sources (5, 5', 5", . . . ) is spread in the panel (1). The invention is characterized in that a plurality of deformities (7, 7', 7", . . . ; 8, 8', . . . ) is provided in the panel (1) for extracting light from the panel (1) via the light emission window (2). The deformities (7, 7', 7", . . . ; 8, 8', . . . ) are clustered so as to form at least one light symbol (27; 28). The configuration of the clusters (17; 18) of deformities (7, 7', 7", . . . ; 8, 8', . . . ) corresponds to the shape of the light symbol (27; 28). Preferably, the luminaire has a first and a second light-transmitting edge surface, with respectively, a first and a second plurality of light sources being associated with said surfaces. A first cluster of deformities only couples light from the first light source out of the panel, thereby forming a first light symbol, while a second cluster of deformities only couples light from the second light source out of the panel, thereby forming a second light symbol, independently of the formation of the first light symbol. The luminaire according to the invention provides independent lighting and coloring possibilities of light symbols in a single-panel luminaire.
A sign box includes a box frame fixedly mounted on an outside wall of a building, a plurality of transparent lamp tube holders respectively mounted in the box frame and holding a respective lamp tube, a pair of parallel rails provided at one side of the box frame and defining a sliding track, a cover board inserted into the sliding track to keep the lamp tube holders from sight, and an electric box hinged to the box frame at a bottom side to hold fluorescent ballasts and starters of the lamp tubes in the lamp tube holders.
A luminous diffused light panel of limited thickness and low consumption includes a transparent plate, an LED assembly resting on a support for sequential energization and being mounted against an edge of the transparent plate, a reflecting element between the support and a polished edge of the transparent plate to reflect emitted light from the LED assembly towards the polished edge of the transparent plate, a coating on a rear surface of the transparent plate for reflecting and diffusing LED emitted light outwards through an opposite surface, an opaline plate positioned a short distance from the transparent plate for diffusion of light emitted from the opposite surface of the transparent plate, a protective transparent plate positioned in front of the opaline plate, framing sections fitted on sides of the plates to cover the LEDs, and indicia provided between the opaline plate and the protective transparent plate.
An emergency lighting fixture includes a frame employing an indicator on the front of the frame, an illumination lamp installed in the inside of the frame, a laser projector exposed to the front of the frame from the inside of the frame, an angle adjusting unit for adjusting a projecting angle of the laser projector, and an emergency power supplying battery, installed in the inside of the frame, for impressing a power supply into the illuminating lamp and the laser projector in response to a signal of a fire sensor in the event of fire.
A luminaire comprises a relatively thin and flat light-emitting panel (1) having a light-emitting window (2) and, opposite said light-emitting window, a rear wall (3) with opposed edge surfaces (4, 14). At least one of the edge surfaces (4) is light transmitting and associated with a plurality of light sources (5, 5', 5", . . . ). Light originating from the light sources (5, 5', 5", . . . ) is spread in the panel (1). The invention is characterized in that a plurality of deformities (7, 7', 7", . . . ; 8, 8', . . . ) is provided in the panel (1) for extracting light from the panel (1) via the light emission window (2). The deformities (7, 7', 7", . . . ; 8, 8', . . . ) are clustered so as to form at least one light symbol (27; 28). The configuration of the clusters (17; 18) of deformities (7, 7', 7", . . . ; 8, 8', . . . ) corresponds to the shape of the light symbol (27; 28). Preferably, the luminaire has a first and a second light-transmitting edge surface, with respectively, a first and a second plurality of light sources being associated with said surfaces. A first cluster of deformities only couples light from the first light source out of the panel, thereby forming a first light symbol, while a second cluster of deformities only couples light from the second light source out of the panel, thereby forming a second light symbol, independently of the formation of the first light symbol. The luminaire according to the invention provides independent lighting and coloring possibilities of light symbols in a single-panel luminaire.
