An illumination assembly includes a lens housing having a first end and a second end, a first lens having first and second opposing surfaces with the first lens being disposed in a first end of the lens housing. A cane having a first a second surfaces is disposed in the lens housing with the first surface of the cane being spaced a predetermined distance from a first surface of the lens and wherein the second surface of the cane is polished and disposed against a first polished surface of a fibe...

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, particularly for motor vehicles, has a housing, at least one support part, a plurality of semi-conductor light sources arranged in the support part and provided with electrical connection means for connecting the semi-conductor light sources with a voltage source. The support part has a plurality of separate support members arranged in the housing. Each of the separate support members carries only some of the semi-conductor light sources and is releasably insertable into ...

An illumination system comprises a 1st signal generator to generate signals with a frequency range of the alpha rhythms of human brain waves, a 2nd signal generator to generate signals with a power spectrum distribution expressed by 1/f.sup.n, where n is between 0 and 2, and also with a frequency range below 50 Hz, a driver amplifier a and a driver amplifier b, both serving as light controllers to control the illumination of light sources according to the signals from the 1st and 2nd signal gene...

An illumination module (20) for illuminating an object (10) comprises a number of illumination rings (62, 64, 66) each comprising a number of radiation-generating elements (50) which are all arranged on a flat plate (42). For each ring, a light guide (72, 82, 84) is provided for guiding the radiation from the ring to the exit window (60) where the radiation exits at a range of angles which are specific to said ring. The rings can be switched on individually, so that different kinds of illuminati...

In an illumination apparatus for illuminating a display device with a light beam from a light source through an illumination optical system, the illumination optical system includes a first lens array unit having a plurality of positive lens portions juxtaposed with each other, a second lens array unit having a plurality of negative lens portions juxtaposed with each other, and a third lens array unit having a plurality of positive lens portions juxtaposed with each other. The first to third len...

An illumination system for illuminating a spatial light modulator. An integrator rod is positioned in the light path between an arc lamp and the spatial light modulator. At the input surface of the integrated rod, there is positioned a field lens for defocusing areas of turbulence within the arc lamp. In the output surface of the integrated rod there is positioned a plate effective to prevent dust from being attracted to the output surface of the integrator rod. The integrator rod is effective t...

Disclosed herein is a current control for a lighting assembly, which may be an LED lighting assembly, which may be a pulse width modulated ("PWM") current control or other form of current control where each current-controlled unit is uniquely addressable and capable of receiving illumination color information on a computer lighting network. In an embodiment, the invention includes a binary tree network configuration of lighting units (nodes). In another embodiment, the present invention comprise...

An illumination device having a light-emitting tube and a reflector for reflecting rays of light irradiated from the light-emitting tube is designed so that the cross-sectional shape of at least one section of the reflector in a plane perpendicular to the axis direction of the light-emitting tube is different from the cross-sectional shapes of the other sections in the axis direction of the light-emitting tube.

An illumination device employs electroluminescent lamps which may be used alone or may cooperate with mask layers to define one or more rows of illuminated indicia which may be easily replaced to provide other types and colors of indicia. A circuit including a photocell automatically energizes the device so as to operate above or below a threshold level of visual illumination depending on the intensity of surrounding light shining on the device. The circuit can be either hardwired to a structure...