An illumination device for illuminating a surface with a radiation beam of arcuate cross-section is disclosed. The device includes a radiation source for producing a radiation beam having a uniform intensity; an optical system including a stop with an arcuate opening to be irradiated with the radiation beam from the source, an image of the arcuate opening irradiated being projected on the surface for illumination of the same; and a light pipe assembly for directing the radiation beam from the so...

Provided is an illumination device in which natural light having a correlated color temperature equivalent to that of artificial light can be obtained so that there is no feeling of physical disorder against the artificial light when the natural light is used in combination with the artificial light for energy saving. In the illumination device, luminous flux of natural light in a visible light range (380 nm-780 nm) is detected by a color temperature sensor in a first light detector portion (8),...

An illumination device having a reflecting plate, at least one linear light source arranged on a first side of the reflecting plate, a diffusing plate arranged on a second side of the reflecting plate, and a light quantity adjusting member formed integrally with the reflecting plate.

An illumination device for illuminating the keypad of a handheld remote control device. This illumination device consists of a base which is adapted to be mounted on the remote control device. A light source extends from the base by means of a flexible arm to enable the user to direct the pattern of light on the keypad of the remote control at a variety of angles offering the most enhanced visibility. The flexible arm also enables the user to direct the pattern of light to objects or areas other...

A thin illumination device providing uniform luminance distribution on the diffusing plate comprising a reflecting plate, linear light sources arranged in the vicinity of the reflecting plate and a diffusing plate arranged on the opposite side of the reflecting plate with regard to the light sources, section of the reflecting plate having a shape of continuous curves having different curvature.

An illumination device includes first and second optical integrators disposed along an optical axis and each having lens elements arrayed in a direction intersecting the optical axis; a condensing optical system for collecting light passed through the first and second optical integrators, to form a secondary light source; and a mechanism for relatively shifting the second optical integrator relative to the first optical integrator, in a direction intersecting the optical axis.

An illumination assembly allowing quick and easy access to traffic, billboard or other lighting is provided. The illumination assembly includes a rotatable conveyor assembly having a cable or cord driven by one or more drive pulleys to rotatably place lighting luminaires over supported operating, maintenance or other areas. When a light bulb contained in a luminaire burns out or otherwise requires servicing, the rotatable conveyor assembly is activated to drive the corresponding luminaire to a m...

An illumination device able to maintain a high level of light utilization and provide essential functions using a compact design. The illumination device includes a light source, at least one fiberoptic cable for transmitting light from the light source, and at least one lamp device for producing a desired light distribution. The lamp device includes a light bending and conducting path that directly receives the light emitted from the fiberoptic cable. The light bending and conducting path bends...

An illumination device comprises a light source like a halogen lamp, a light guide, a round rod-shaped transparent radiation member having a proximal end and a distal end, and a transparent radiation plate. The light guide is a plastic optical fiber comprising a single core of silicon rubber and a cladding layer of tetrafluoroethylene/hexafluoropropylene copolymer. The radiation member is a transparent circular cylinder made of acrylic resin, and has a predetermined pattern of light scattering r...

An illumination device consists of a light emitting element, a casing for supporting the light emitting element, and a colored cap which covers the light emitting element. The cap has a flat top surface so that the device can be held by suction stably at the top surface by means of a suction nozzle that is used commonly for other electronic parts and can be carried and mounted on a circuit board by the automatic part mounting equipment. The cap also has the formation of a curving surface section...