An illumination mechanism for an escutcheon portion of a car sound device such as a car radio, car stereo, etc. The illumination mechanism comprises a light-transmissible plate provided at the front of the escutcheon portion and an illuminating lamp or lamps provided behind the light-transmissible plate. A cassette or cartridge receiving opening is formed in the light-transmissible plate and operating members for the sound device are provided on the plate.

A darkfield type illumination device for performing slide agglutination tests or the like. The device comprises a casing having an opening therein. A transparent slide having a reaction area thereon is mounted on the casing with the reaction area positioned over the opening. A nonreflective surface is provided in the casing below the opening. Illumination from the light source is transmitted in two paths extending from opposite sides of and below said opening upwardly at an angle to the opening....

A portable illumination device consisting of a substantially flat concave reflector for mounting to a card or package, and including a lamp for illuminating the card or package. The reflector may also include a flat battery having a bulb receiving connector for receiving a lamp. The illumination device may be supported from a wire or string, or mounted on a vertical edge.

An illumination device comprising a support rail, a terminal box insertable therein, and receiving on both sides therein a conduit rail carrier having a plurality of electrical conduit rails. A plurality of spring holding and contact-tongues in the terminal box, operatively cooperating with said conduit rails. A pole contact tongue cooperates in one of the insert positions of the terminal box with a pole conduit of one current circuit of one of the conduit rail carriers of one current circuit, w...

A system for uniformly illuminating a field of information is provided for optical character readers having a scanning device loosely constrained in movement. Lamps are symmetrically located about the optical axis of a sensor and enclosed within an illuminator. The sides of the illuminator converge at one end to port having dimensions defined by the field to be viewed. A plate between the lamps and the sensor partially encloses the second end of the illuminator with an aperture therein symmetric...

A gas illuminating burner in which a gas mixture is delivered through a porous ceramic support and a heat radiating layer of a metal oxide to a layer which is a mixture of thorium and cerium oxides. The gas mixture burns in an improved manner at the upper surface of the layer of oxides.

The elimination of strobing in an electrophotographic machine by altering the illumination profile of a projected image at the edges of an exposure aperture located near the photoreceptor surface. The illumination profile is altered by use of a transmission filter overlying the aperture and having a linearly tapered transmission profile at the edges of the aperture or using an aperture plate with saw toothed pattern edges defining the aperture.

A darkfield type illumination apparatus for performing slide agglutination tests or the like. The apparatus comprises an elongated casing having an opening therein over which a transparent slide carrying the material to be illuminated is positioned. In the preferred form of the apparatus, a nonreflective surface is provided in the casing below the opening. An elongated light source is positioned below such surface. A pair of angularly bent elongated light conducting members are positioned on opp...

For use in illuminating a semiconductor slice to be aligned with a patterned mask, an illumination assembly comprises a substantially cylindrical, disc-like housing having a bottom surface adapted to fit a complementary upper surface portion of a chuck member of the alignment machine. The interior of the housing is hollow and contains a plurality of infrared sources, e.g., two-terminal, incandescent infrared lamps secured along radii extending from the center of the cylinder. One terminal of eac...

A lighting device, comprising a supporting rail defining a receiving channel in which are disposed conduit rail carriers. A plurality of electrical conduit rails are received in the conduit rail carriers. Three of the conduit rails constitute pole rails and one of the conduit rails constitutes a zero-conduit rail. A connection box is insertable into the supporting rail and is equipped with a plurality of spring holding- and contact-tongues switchable selectively by means of a switch into an enga...