Abstract: A light source device for use in an image forming apparatus and using a semiconductor laser is disclosed. The device needs a minimum of constituent parts and frees the individual part from dislocation in the event of assembly. A collimator lens included in the device is fixed in place by photo-curable adhesive. The device is low cost and highly accurate.

Abstract: A floodlight has a housing and a housing support coupled to the housing. In the improvement, the support includes a strut extending along a strut axis and having a distal end and a pivot member at a proximal end. The pivot member is mounted for movement about an axis of rotation and has a boundary spaced from the axis of rotation by a first dimension. The housing includes a housing surface proximate the axis of rotation and spaced therefrom by a second dimension less than the first dimension. The housing includes a recess therealong and when the strut is folded against the housing, the strut is received in the recess. A group of floodlight components comprises a main housing and two or more differently-shaped center housings. The attachment portions of the center housings are sized and configured to be interchangeably received at the main housing forward opening. The group thereby accommodates any one of several different lamps, e.g., PAR 20, PAR 30 and/or PAR 38.

Abstract: A lighting fixture includes a convertible shade which is supported relative to the light source to intercept light rays emitted by the light source in a selected direction or directions. The wall of the convertible shade has one or more wall inserts which can be selectively and easily secured to or detached from the convertible shade to alter the effect of the convertible shade on light rays from the light source which are directed at the location or locations of the wall insert(s) in the convertible shade without detaching the convertible shade from the shade supporting means. Preferably, the convertible shade is made of an opaque material while the insert(s) may be made of opaque, translucent or clear materials.

Abstract: A display case lighting system having a lens positioned inside a display case adjacent a light source inside the case for directing light across a viewing plane within the case and reducing contrasting illumination of items displayed within the viewing plane.

Abstract: A device for fixing the screen of a ceiling light fixture to the base of the ceiling light fixture, wherein a seat is formed in the peripheral region of the base and is adapted to receive and retain an end of an elastic hook-shaped element, the opposite end whereof is adapted to engage, with a snap action, an undercut formed in the peripheral region of the screen, so as to clamp the rim of the screen against the rim of the base.

Abstract: A front running light assembly that is to be mounted to a front fender of a motorcycle, and including a housing having an open bottom portion leading to a cavity and a top portion having an opening. A translucent lens is positioned within the cavity and at least partially covers the opening. The lens is directly secured to the housing such that the lens maintains engagement with the housing when the housing is detached from a motorcycle front fender. The assembly further includes a base and a bulb mount for supporting a light bulb and secured to the base. The base is integrally formed with the lens, such as by molded the two parts from plastic. A resilient pad contacts the bottom portion of the housing and includes a wire opening for allowing electrical wires to pass through the pad and a bulb access opening for providing access to a light bulb supported by the bulb mount. Preferably, the pad is adhesively secured to the bottom portion of the housing.

Abstract: An outer lens attachment structure in which a lamp body is integrally formed with an engagement device having an engagement piece member which is bent inwardly of an opening part of the lamp body to be engaged therewith, and when the engagement piece member is depressed to be bent inwardly, the engagement piece member urges the peripheral part of the outer lens against the opening periphery of the lamp body so that the peripheral part of the outer lens is securely held between the engagement piece member and the opening periphery of the lamp body.

Abstract: An attachment configuration for securing a circular light fixture cover to a correspondingly configured light fixture base, includes an outwardly extending helical flange around the base of the cover and a mating helical channel within the light fixture base. Preferably, the flange and channel each form only a single pitch and extend around their respective components only 360 degrees, thereby allowing the fixture cover to be removed from or installed upon the fixture base with only a single turn. A stop may be provided in the assembly to prevent overtightening of the cover to the fixture base, and alignment markings may be provided to indicate the initial engagement point and fully engaged point of the cover relative to the base. The flange and mating channel may be provided on either of the components, and may be oriented inwardly or outwardly as desired, so long as the corresponding cover and fixture base have complementary and mating configurations.

Abstract: A light fixture lens mounting system includes a lighting fixture body having an opening, a lens, and a lens mounting ring having structure for supporting the lens over the opening, the body opening and the lens mounting ring being fitted with a series of corresponding lugs for interlocking engagement. Preferably, the body lugs project outwardly from a rim to form an outwardly open groove and the ring lugs project inwardly from the ring to form an inwardly open groove to permit interlocking engagement of the body lugs in the ring groove and the ring lugs in the body groove. In particularly preferred forms, the body lugs include structure for supporting a gasket adjacent the lens to provide a weathertight seal. In other preferred forms, the body lugs extend inwardly to form an inwardly open groove, and the rings project outwardly from the ring to form an outwardly open groove to permit interlocking engagement of the body lugs in the ring groove and the ring lugs in the body groove.

Abstract: A showcase light lens retainer system consisting of a pair of identical retainers each for pivotal mounting to a showcase or display light housing, adjacent to an opening into said housing that is covered by a thin flat transparent or translucent lens. The individual retainers each include a side portion for pivoting over a lens end that is stepped upwardly at a side wall, above a pivotal connection of the receptacle to the housing, a distance that is approximately the same or slightly greater that the lens thickness and includes a tab that projects outwardly from the top edge of the side portion that is stepped downwardly at right angle a tab wall from the side portion to provide a wall for engaging a top or bottom lens edge, the respective stepped side portion wall to engage the lens end and the tab wall to engage the lens top or bottom edge, adjacent to the lens end, each retainer maintaining a lens end in covering arrangement over the housing opening.

Abstract: A headlamp for motor vehicles in which an inner lens formed with distribution beam control steps can easily be fastened to the front opening of the reflector. Holes, which receive respective protrusions protruding from the lower edge of the inner lens, are formed in the lower surface of the reflector, and cutout portions provided on the front end of the upper surface of the reflector are located further rearward than the protrusions, whereby the inner lens maintains engagement with the front opening of the reflector lens contact faces by its own weight. The upper edge of the inner lens can easily be fastened to the front end of the upper surface.

Abstract: A vehicular headlamp that provides near-ultraviolet illumination of desired areas but which assures that sufficient brightness can be obtained in areas illuminated with visible light without having to combine the lamp with another type of headlamp. The headlamp includes a light-emitting unit accommodated in a lamp housing including a substantially parabolic reflector, a discharge bulb mounted inside the reflector to generate both visible light components and ultraviolet rays, and a light-emitting lens disposed in front of the reflector to irradiate the light reflected from the reflector in the forward direction.

Abstract: A light source module for generating collimated laser light wherein a solid-state laser light source is mounted within the bore of an optical mounting tube at a preselected distance from the light output end of the tube, and a convergent glass lens within a metal lens mounting is permanently attached to the output end of the tube, lens attachment being at a location insuring permanent and accurate alignment of the collimated light output from the laser with the bore axis of the mounting tube, and a method for making it, are described.

Abstract: A lighting fixture substantially comprising a lamp housing and an illuminant disposed therein, with a transparent decorative body being provided below the illuminant and spaced from the lamp housing, and a plate reflective on the side facing away from the illuminant and having a central bore being disposed between the illuminant and the decorative body.

Abstract: A fixture for portable quartz floodlights in which a plurality of clips are secured to the periphery of the housing.

Abstract: A gobo holder for a lighting system is provided which includes a housing for removably receiving a gobo therewithin, the housing having first and second ends and being positioned in the beam of light such that light enters the housing through the first end, passes through the gobo and exits the housing through the second end, a support on the housing for supporting the gobo in the housing, the support being positioned such that the beam of light passing through the gobo is unobstructed by the support, and a spring retainer supported by the housing and in contact with and resiliently biasing the gobo into contact with the support, the spring retainer being positioned such that the beam of light passing through the gobo is unobstructed by the spring retainer. The gobo holder is particularly advantageous in that it is capable of securely retaining gobos of various thicknesses in position during use while permitting easy and quick replacement of the gobos during lighting operations.

Abstract: A combination searchlight, which includes a searchlight, which has a lamp case covered with a rim and a lens and connected to a lamp case supporting arm thereof at the top of a handle thereof, a carrying strap fixed to the handle and lamp case supporting arm of the searchlight, and a mount fixed to the lamp case supporting arm to carry a compass and a reflecting bar, wherein the rim is fastened to the lamp case through a screw joint and has a plurality of pins perpendicularly extended from the front side thereof and spaced around the periphery for protecting the lens.

Abstract: A color medium structure for use with a stage spotlight comprises a frame constituted by two opposite frame plates, preferably made of a fiber reinforced plastic, with a portion of the periphery thereof secured together to allow other portion of the periphery to be peelable off for receiving therebetween a light-transmitting color film. The light-transmitting color film is secured between the frame plates by the attraction of magnets mounted to the frame plates.

Abstract: A method of manufacturing a lens for use as a part of an aircraft including the steps of fusion bonding a sheet of acrylic to a sheet of polycarbonate to form a sheet of laminate, cutting the laminate into a blank having a configuration required by the ultimate lens configuration, heating the blank and forming it around a mold to provide a three dimensional lens body of desired size and configuration having an uninterrupted circumferential edge and having an inner polycarbonate surface and an outer acrylic surface, applying a narrow strip seal to the lens body inner surface in a narrow strip portion adjacent substantially the full circumferential edge thereof in order to bond the strip seal to the lens body, shaping the circumferential edge of the lens body around substantially the full circumferential edge thereof, and providing bushings in the lens body and strip seal so the bushings are spaced around the circumferential edge as a means of securing the lens to an aircraft.

Abstract: A flat portion has a flat top surface, on which a chip carrier is provided. A light-emitting element is mounted on the chip carrier. A vertical portion is integral with the flat portion and extends vertically, i.e., perpendicularly to the flat top surface of the flat portion. A metal plate made of a metal having good welding performance is silver-brazed onto the vertical portion. A lens barrel containing a lens for focusing a light beam from the light-emitting element is inserted in a through-hole of the vertical portion and the metal plate, and welded to the metal plate so that the optical axes of the light-emitting element and the lens coincide with each other.

Abstract: A recessed lighting trim comprises a reflector, a circular frame connected to the reflector, and a circular translucent plate mounted in the frame. The translucent plate is retained in the plate by tabs of the frame which are bent onto the translucent plate. The frame includes hooks adapted to be received in slots formed in the reflector to enable the frame to be installed and removed by being rotated relative to the reflector. A chain connects the frame to the reflector to prevent the frame from falling after being removed from the reflector.

Abstract: A modular lighting system includes a line of lighting fixtures with various body, lens, lamping system and mounting system alternative configurations, types and sizes. Many of the lighting system components are interchangeable among the different lighting fixtures. Others of the lighting fixture components can be fabricated by providing a blank with a certain configuration, (e.g., a hemispherical body) and separating it into one or more components forming portions thereof. A method of forming such modular lighting fixtures includes the steps of providing such interchangeable components and providing other components which can be formed from common blanks, mounting such fixtures with various mounting fixtures and lamping such fixtures with various electrical lamping systems.

Abstract: A fixture for portable quartz floodlights in which a plurality of clips are secured to the periphery of the housing. A portion of each clip overlies the safety guard and lens to press the guard and lens into assembled relationship with a peripheral flange which extends around the housing. A handle is attached to the housing at the top center to facilitate transportation of the fixture.

Abstract: A modular low voltage power distribution and lighting system that contains a series of components that allow easy installation by means of these compatible modular components to provide low voltage power, less than 30 volts, throughout a given space. The system is based on the use of one or more transformers providing electrical power to one or more electrical circuits running through a series of compatible tubular fixture housings, and related components, to a series of female receptacles located at predetermined locations along the outside surface of the tubular fixture housing. The system may incorporate one or more lampholder devices that attach to the tubular fixture housing and obtain low voltage power from any of the female receptacles. The lampholders contain a series of rings that retain the lamp and accessories by means of flat rings held under pressure in slotted plates between the arms of the lampholder frame.

Abstract: A lighting fixture designed particularly for exterior garden, walkway or yard lighting. The housing is in the form of a pair of mating ceramic housing parts which form a light emitting opening. The ceramic housing parts include integral groove for positioning a lens or transparent opening closure, filters for changing the color of the light emitted and a lamp-reflector assembly. The ceramic housing provides a virtually moisture impervious dielectric housing which includes, as integral parts of the housing, all of the necessary functions except fasteners.

Abstract: In a lamp with a reflector envelope ensuring modified light output, comprising a conical reflecting body (2), an insert light source (4) arranged within the conical reflecting body (2) and a light transmitting front element (3) fixed to the conical reflecting body (2), there is between the conical reflecting body (2) and the front element (3) a clearance (10) determined by the dimensions and the inner spring force of a mechanical fixing body (5) connecting the conical reflecting body (2) and the front element (3), wherein at least a part of the clearance (10) is occupied by a deformable sealing material (6) or adhesive.

Abstract: A cover (70) for a small lamp, the cover having a flat, ring-shaped member (16) with locking legs (28) projecting vertically downward from the underside (26) of the ring (18) for locking into notches in the base (62) of the lamp. The ring-shaped member (18) has locking upright members (24) which project vertically from the top surface (22) thereof, which hold a glass shield (20) in place and which receive on the upper portions thereof a locking ring member (16).

Abstract: A decorative outdoor light fixture has an upwardly facing light source mounted in a pipe coupling substantially at or somewhat above ground level. The light source extends into a vertically extending nipple having a pipe union threadably mounted on the top thereof for securing a selected light filter and lens assembly to the upper end of the nipple. Each light filter and lens assembly emits a particular colored decorative light effect to the surrounding atmosphere, and each includes a top hemispherical lens.

Abstract: An assembly for supporting a neon tubing comprises a length of extrusion and at least first and second lenses supported in the extrusion. Preferably, the extrusion includes an angled bottom member having first and second legs. First and second wall members extend transversely to the first and second legs, respectively, of the angled bottom member, with each of the first and second wall members having a medial portion and an end. The extrusion further includes a service rail extending at an obtuse angle from the end of each of the first and second wall members, and the service rail includes a tapered medial portion and a retaining flange. Each of the first and second lenses are supported in a receving channel of the extrusion and has a predetermined length less than the predetermined length of the extrusion.

Abstract: An LED holder is provided with a main body with an opening and a lens cap for mounting over the opening. The lens cap has an outside wall which has a flare about its crest. The main body has an inside wall about its opening which converges toward the opening. The lens cap is held in place on the main body by forcing the flare past the inside wall to rest against a shelf which extends inwardly from the base of the inside wall. A decorative ring can be fastened to a rim which extends outward from the main body near the base of the inside wall.

Abstract: A lamp unit having an elliptic reflector, a light source positioned at a first focus point of the elliptic reflector, a bracket fixed to a front end of the reflector, a projection lens mounted on a front end of the bracket and a holder member for holding the projection lens onto the bracket. The holder member is a plate like member provided along the circumference of the bracket. One end of the holder member is bent inward to form a bent portion which supports a rear end of the projection lens, while the other end of which is partially press-fitted in a plurality of holes formed on a side surface of the bracket.

Abstract: A lamp assembly includes a lamp capsule, a reflector, an electrical connector and a lens. The lamp capsule includes a lamp envelope having a base portion, and the reflector includes an opening for receiving the base portion of the lamp envelope. The reflector is fabricated of a resilient material such as a high temperature thermoplastic or thermosetting plastic. The base portion of the lamp capsule and the reflector include lamp interlocking elements which mechanically lock the lamp capsule in the reflector. The lamp interlocking elements preferably position the center of light output of the lamp capsule at the focal point of the reflector. The connector and a neck portion of the reflector include connector interlocking elements which mechanically lock the connector to the reflector. The lens and the outer rim of the reflector include integral lens interconnecting elements which mechanically lock and position the lens on the reflector.

Abstract: School bus warning light systems. Particularly an improved one-piece plastic fitting for supporting the sealed beam bulb in accordance with SAE photometric and durability standards. The fitting is characterized by its simplicity and ruggedness for securing and positioning the sealed beam bulb.

Abstract: The lighting unit (10) is designed for use with video cameras. The lighting unit is light in weight, compact in size and portable. There is a housing (11) including a reflector (30) and a light source (33). A focussing lens (12) is moveably mounted on the housing (11) forwardly of the light source (33). The light source is moveable between two final positions to provide either floodlight or spotlight. This enables the photo amateur to obtain illumination as a professional at affordable costs.

Abstract: Color wheel for lighting fixture, which includes a polygonal metal plate, which has slotted metal bars seated on the side edge of the polygonal plate with rectangular glass plates, e.g. dichroic filters adhesively held in the slots of the metal bars spaced. The glass plates are not in direct contact with the metal bars and are spaced close to each other, but not in contact, in a peripheral array.

Abstract: A lamp cover assembly for electric appliances which enables a lamp cover to be disassembled without being completely separated from the bottom face of the appliance. The assembly includes a lamp cover support means on which the lamp cover is pivotally mounted so that the lamp cover pivots without being completely separated from the bottom face when it is disassembled for replacing the lamp.

Abstract: Lamp housing which, in one form, selectively receive different sized P.A.R. lamps and, in another form, selectively receive a P.A.R. lamp or an incandescent lamp. In either instance, the P.A.R. lamp is retained in position by spaced-apart flexible latches which engage a portion of the lamp lens. Additionally, and in order to provide ventilation space between the inside of the housing and the positioned P.A.R. lamp, spacer arrangements are provided. In both housing forms, ventilation openings are provided at various locations in the housing. As an added feature, each housing form, which includes a mounting bracket, is secured in an operative position by a support clamp. The latter is unique in configuration, being defined by a first and second portion at right angles with respect to each other and an arcuate third portion.

Abstract: A convertible light fixture (10) capable of selectively functioning as a spotlight or floodlight. A preferred light fixture (10) includes a ground stake (12) supporting a bulb/lens assembly (14). An electrical cable (16), protected by the preferred S-shaped ground stake (12), makes contact with the bulb/lens assembly (14) at the rear thereof. More specifically, a pair of prongs (60), which also support a bulb (62), protrude from the rear of bulb/lens assembly (14) and make contact with electrical cable (16). Preferred bulb/lens assembly (14) includes a stationary housing (40) and a rotatable focus ring (70) wherein rotation of the latter relative to the former causes axial movement of a reflector (80) relative to bulb (62) to change the degree of focus of the light beam produced by fixture (10). Another feature of preferred bulb/lens assembly (14) is a lens (90) which produces a rectangular light beam adjustable in orientation.

Abstract: A corner lamp is attached to the corner of a room defined by the orthogonal relation of two adjoining walls and the ceiling of a room. The lamp is of tetrahedral configuration and includes a frame comprised of a rectangular central panel and a pair of triangular side panels. The central panel has a light bulb assembly mounted thereon and a triangular lens is mounted on the frame between the triangular side panels.

Abstract: A headlamp for motor vehicles exhibits a diffuser disc which serves to mask a light exit aperture of a reflector housing and which is retained on the latter by a fastening frame and which is braced toward the depth of the reflector housing only by the reflector housing. The reflector housing yields at least in a bracing region in case of a collision and clears the path for a yielding plunging of the diffuser disc into a reflector housing cavity without the fastening frame being prejudicially deformed.

Abstract: An improved front loading transparency illuminator having a transparency retaining frame with a side wall mounting flange and an open, substantially perpendicular transparency receiving channel. The multipiece frame includes an internal channel for connecting adjacent pieces of the frame to one another prior to assembly onto the illuminator light box. The frame includes an outer open trim channel which has retaining lips to retain decorative inlay trim therein.

Abstract: A mounting mechanism is provided for the light-discharging-end portion of an optical fiber onto an optical display panel wherein the fiber end is disposed within a threaded body that is inserted through the display panel and held in place by a nut. Alternatively, the nut can be formed of transparent light-diffusing material and configured to completely enclose the end of the thread body that projects out beyond the display panel to diffuse the light emanating therefrom.

Abstract: A tail light assembly is provided for a vehicle body. The tail light assembly is secured to the vehicle body by threaded fasteners which extend from a point externally of the vehicle body through openings in the tail light assembly into threaded engagement with body structure. The threaded fasteners are obscured from external view by of a cover plate which is secured to the tail light assembly over the threaded fasteners. The cover plate is also secured to the tail light assembly by threaded fastener structure. However, this threaded fastener structure extends from a point within the opening provided for a deck lid and is hidden from external view when the deck lid is closed.

Abstract: A compact flashlight comprising a rectangular housing including a front wall mounting a substantially coextensive lens. A reflector mounts within the housing immediately rearward of the lens and defines, in conjunction with a rearwardly directed bulb mount, a pair of battery chambers laterally to opposed sides thereof. A frictionally mounted removable rear wall is received within peripheral recesses and closes the housing, cooperating therewith for the retention of batteries within the battery chambers. The rear wall similarly retains an externally accessible switch.

Abstract: An arrangement for fastening a glass in a bulkhead lighting fitting, wherein three small columns are fixed with and project perpendicularly from the bulkhead fitting and are arranged substantially at the apices of an equilateral triangle. The small columns each include a sidewardly opening groove to accommodate an edge of the removable glass. One of the small columns has a rotary head movable between open and closed positions, the head when in the open position permitting the glass to be moved downwardly into the groove, whereupon rotation of the head into the closed position results in the edge of the glass being confined within the groove.

Abstract: A ring surrounding the clip which secures the body of an LED diode lamp to a bracket is provided with inner longitudinal grooves which reduce the thickness of the wall of the ring and confer thereto an elasticity which is sufficient for permitting its engagement on clips of different diameters. The manufacture of diode lamps does not provide the bodies of these lamps with very precise or consistent diameters, so that relatively important variations of these diameters can occur, which have an influence on the diameter of the clip when engaged on the lamp. Owing to the present arrangement, diode lamp holders can absorb such variations of diameter of the lamps, and still be secured to a panel or other structure by the ring of the invention.

Abstract: A warning light assembly suitable for vehicle roof mounting is built around an I-beam structural member and includes lens elements which engage and are readily positionable on the beam so as to span the flanges at both sides thereof. The light assembly may include lights having a wide angle radiation pattern which are comprised of intersecting linear parabolic reflector sections and flash tubes formed to follow the contour of the intersecting linear focal points, the tubes being supports with their axes coincident with the reflector focal points.

Abstract: An item of apparel is disclosed that can be worn on various parts of the body such as the ankle, the arm, the wrist or the like comprising a fabric sleeve having Velcro at its ends so that it can be formed into a loop embracing the user's limb. A series of light-emitting diodes are mounted on the sleeve and connected to a battery powered circuit having a mercury switch so that the diodes are illuminated depending upon the position of the user's limb. Each diode is mounted in a reflector that magnifies the diode's illumination.

Abstract: A lamp device for projecting a brake light signal on a motor vehicle comprising a lamp base in the form of a staircase having vertical and horizontal faces, a plurality of light sources mounted on at least one of the vertical faces of the lamp base and a light-transmissive casing having a staircase shape generally complimentary to the shape of the lamp base and overlaying the lamp base. The lamp device further comprises means for attaching same to the rear window of a motor vehicle.

Abstract: An improved exterior post top mounted lighting fixture with a housing formed by four extruded right-angled aluminum members interlocked together, the housing providing means for aligning an electrical assembly and the components thereof in a predetermined position.