Abstract: An alpha-numeric array is provided for the selective display of characters as controlled by associated character generator programming circuitry. The display array in one character format utilizes a 5.times.7 matrix array of individually operable illumination sources, LED solid state lamps for example, with programmed combinations of the individual illumination sources being operated to display the programmed characters. The display array includes a lens and front panel array having integrally formed lens areas. The lens areas of the lens and front panel array when unactuated are essentially indistinguishable from the front panel array background area thus providing improved contrast. The display array also includes a reflector array having integrally formed reflector cavities. The integrally formed reflector cavities include predetermined surface characteristics for collimating the light rays emanating from the central axis of the reflector cavities.

Abstract: A housing having means for connecting to a conventional electric outlet. The housing is provided with a lower portion having a printed circuit and a transparent lens. The circuit includes a photo conductive cell sensitive to the light through the lens. The cell is designed to become more conductive in the dark and less conductive in daylight, gradually fading from one condition to the other. The circuit also includes an electric light mounted in the upper portion of the housing and covered by a transluscent shade. Current to the light is passed through a Quadrac which is activated by a connection between its gate and the photo cell. As the light fades in the room, the photo cell transmits more and more current to the quadrac gate and the light gradually gets brighter and brighter. This makes a fine auxiliary light in a bathroom or similar location in the home since it is small and compact.

Abstract: A vehicle headlamp has a reflector provided with a reflective area lying on a surface defined by rotating an ellipse about an axis which passes through the inner focus of the ellipse and which is inclined an acute angle (1.degree.-2.degree.) to the focal axis of the ellipse. A shielded filament for producing an inclined cut-off line to the beam is used and is orientated in the opposite sense to that in which it is orientated in a conventional headlamp for producing an inclined cut-off. To produce a Z-beam pattern, lensing at the front of the reflector splits the area of the basic beam pattern immediately below a horizontal portion of the cut-off line into parts which define upper and lower, mutually laterally displaced horizontal cut-off portions in the required Z-beam pattern.

Abstract: This portable lighting apparatus which comprises a case having a parabolic reflector, a bulb whose filament is situated substantially at the focus of the parabolic reflector and a square or rectangular shaped diffusing lens fixed at the periphery of the reflector, perpendicularly to the optical axis thereof, is characterized in that the lens carries a series of rectilinear and adjacent scores on each of its internal and external faces, in that the scores of the same series are formed by concave cylindrical surfaces having transversely the same radius and are perpendicular to those of the other series and in that the radii of the scores of the internal face of the lens are slightly smaller than those of the scores of the external face of said lens, the depth and the radii of the two series of scores being chosen so that the pyramidal light beam therefrom gives constant illumination in any plane perpendicular to the optical axis.

Abstract: A desk or other work table has a long horizontal work surface above which is mounted one or more suitably housed linear fluorescent lamps extending for about the length of the work surface and at about eye level. A plurality of side-by-side light polarizing panels are supported below the lamp, the polarization planes of each panel being vertical and these vertical polarization planes of the group of panels converge toward a medial area where the visual task is to be located.

Abstract: A lamp having a treated lense for reducing peripheral glare thereby making the lamp useful as a driving light, fog light or spotlight. The treated lense is provided with opaque pigment around the periphery of the lense and the center portion thereof to form elliptical shaped aperture for more acutely defining the desired beam pattern.

Abstract: A modular housing assembly for housing a vehicle warning light system and intended for mounting across the roof of a police car or other vehicle on which warning lights are required. The housing comprises a plurality of transparent plastic panels of modular construction, there being provided a plurality of front modular panel sections interconnected in side-by-side relation and a plurality of rear modular panel sections interconnected in side-by-side relation, the front and rear panel sections being connected to one another and to a common base member.