Abstract: A simple compact robust device for dispersing light rays issuing from a light guide. The device has an elongated body of a rigid transparent material, an end of the body being tapered to define an inclined nearly conical peripheral surface, so that those light rays, entering into the body at a small angle with respect to the longitudinal axis of the elongated body, are reflected back into the body by the internal boundary of the inclined surface and are directed to propagate at a larger angle, whereby collimated light rays, issuing from the light guide, are dispersed. The device is particularly useful in lighting systems utilizing solar radiation as a light source.

Abstract: A reflector lamp with a shaped reflector and lens. The reflector is generally parabolic, to reflect light frontwardly. Some of the direct light from the light source is not reflected, and diverges in a beam pattern that would be wasted; the lens refracts this divergent light in a more frontwardly and useful direction. For a floodlight, the lens converges the reflected light rays into a crossover pattern to provide a flood beam pattern.

Abstract: A retainer member for maintaining a headlamp within a housing characterized in that one portion of the retainer member is connected to the housing by a pivotal connection and another portion of the retainer member is connected to the housing by a spring clip arrangement that is manually released when it is desired to remove the headlamp from the housing.

Abstract: This disclosure depicts a novel light fixture having a base, a support section and a cover with means for connecting electrical components on the base with electrical lighting components on the support section. The support section and cover can be assembled and disassembled from the base without the use of any tools.

Abstract: A luminaire designed for outdoor applications (e.g., illuminating roadways and alleyways) and including an improved latching means in the form of two spaced-apart, depressible leaf springs, each including a cam surface for slidably engaging one of the sides of the luminaire's mounting plate during insertion thereof within the luminaire's housing to cause the biased spring to move to an open position (from its closed position) and thereafter clamp against the plate to effect positive retention thereof.

Abstract: A spring clip which is removably attached to a retainer member for maintaining a headlamp within a housing and includes a pair of leg sections carried by the housing that cooperate with a flange on the retainer member for locking the retainer member to the housing.

Abstract: A portable light having a housing which can be selectively mounted onto a support surface. A socket is supported on the housing and holds a bulb in a position externally visible from the housing. An externally manipulatable switch is provided on the housing. Within the housing there is provided circuit means including terminals having a first connecting section for connecting to an internal battery source and second connecting section for connecting to an external energy source. The various parts of the circuit are interconnected in series circuit relationship so that the switch operates the bulb.

Abstract: A connection system comprising a variety of metal connectors, a plurality of illuminated modules insertable into the connectors, and electrical leads hidden within the connectors to electrically join the modules in series relationship, and a step-up transformer for supplying the voltage needed to energize the plurality of modules. Each connector has a hollow body adapted to receive at least one illuminated module. Each illuminated module includes a rigid, transparent plastic sleeve with an annular collar at each end of the sleeve; a gas filled tube is retained in the sleeve by the collars. A foot with a mounting flange is operatively associated with some of the connectors to firmly support an assembled plurality of illuminated modules. The connectors and illuminated modules can be assembled into diverse configurations for applications previously unsuited for gas filled tubes, such as neon.

Abstract: A support housing for a vehicle headlamp that includes a pair of pivotally interconnected ring members adjustable about a pair of mutually perpendicular pivot axes by a pair of vertically oriented adjustment screws which are located to the rear of the headlamp and within the peripheral confines of the headlamp lens.

Abstract: A support housing for a vehicle headlamp that includes a pair of pivotally interconnected ring members adjustable about a pair of mutually perpendicular pivot axes by a pair of vertically oriented adjustment screws which are located to the rear of the headlamp and within the peripheral confines of the headlamp lens.

Abstract: A strobe lighting unit--and a reflector assembly forming part thereof--include a concave reflector having a predetermined shape, typically including a parabolic cross-section. The reflector is formed in situ as part of an assembly process by pressing a thin precut planar blank of reflective material, preferably an aluminum alloy foil having selected mechanical properties, into a die cavity in the reflector housing with a conforming die plunger to bend the blank into the predetermined shape. During the bending process residual tension forces are induced intentionally into the blank and these forces urge the foil into contact with surfaces defining the die cavity to supportively maintain the reflector in the predetermined shape.

Abstract: To permit introduction of a halogen incandescent lamp into a reflector, in ealed relationship thereto, a plastic end portion (2c) of the base (2) of the lamp is secured to a metal sleeve, for example of steel, which is telescopically connected to an adjustment cap (2a) in which the bulb (1) is seated. After adjustment of the position of the bulb, so that the filaments will emit light in a predetermined pattern with respect to the base, the adjustment cap and the sleeve are welded together. The plastic portion includes a groove (9) in which a sealing ring (10) for example of silicone rubber is placed, the plastic element including therebeyond a positioning or seating flange (11). The plastic end portion, thus, can readily be assembled with a glass reflector, the sealing ring (10) providing for a moisture tight seal against, for example, a glass reflector.

Abstract: A lighting fixture employing a cover or lens, preferably of flat glass or plastic. A slidable or pivotal retaining clip is provided for either opposite corners or for each corner of the cover. Each clip acts to hold the cover lens without the need for a surround frame. The retainer clips are slidable or pivotal between a hold position clamping the lens to the fixture body and a release position in which the fixture is freed of the retaining or clamping action of the clip. In the release position, the clip is held on the face of the fixture by holding stops on the fixture body.

Abstract: A filter assembly for a luminaire for preventing contaminants and impurities from entering the sealed enclosure of the luminaire while permitting air to pass into and out of the sealed enclosure. The filter assembly includes a fitting and a cap. The fitting has an axially extending passageway opening at its opposite ends and a cavity receiving an air-permeable filter across the passageway. The cap has a first portion coupled to the fitting to cover one end of the fitting passageway, a second portion extending laterally from the first portion and a solid back member extending over the first and second portions. The first and second portions and the back member define a non-linear passageway in fluid communication with the fitting passageway to permit air to flow into and out of the luminaire sealed enclosure through the filter, while protecting the filter from the elements.

Abstract: An illuminator or light box having the ability to provide varying degrees of light intensity or illumination to the screen. At least two sets of bulbs are mounted within the light box. Each set is identical to the other set and is comprised of different light bulbs. There are control switches to energize the same light bulb of each set. Different colored light bulbs can comprise the sets thereby allowing the user to selectively energize the lamps available to supply various colors to illuminate the screen.

Abstract: Disclosed is a miniature battery-operated light which, except for the necessary batteries, bulb and electrical contacts, is entirely made of molded pieces of thermoplastic material assembled manually by snap-fit or friction-fit. The same housing can be used either with a lid assembly having a flashlight reflector or with a smaller lid assembly without a reflector.

Abstract: A protective device for a ground-deposited light is disclosed. Such a light, e.g. a guide-light for airfield use, generally includes a housing (2) having a cover (3) provided with an opening (5) for letting out light rays from a lamp (4) within the housing. To protect the lamp from rain, snow and dirt the opening is sealed by a translucent material. To protect the translucent material from mechanical influence grains of a harder material than the translucent material are partly embedded therein.

Abstract: The system comprises two light sources which are diametrically opposed relative to the optical axis of the system. In the axis there is provided a light-mixing mirror which has a generally sulcated face having grooves therein of triangular cross-section and raised portions of triangular cross-section separating the grooves. Light coming from the two light sources slightly diverges when it impinges the sulcated face of the mirror and is deflected into the direction of the optical axis thereby being intensively mixed.

Abstract: A hydrocarbon-burning lantern is convertible from a broadcast configuration to a spotlight configuration. The cover, glass housing, and bail of a conventional lantern are removed and replaced with a semi-spherical reflector having a glass-covered opening and a handle. A ring clamps the glass window against the open face of the reflector. A number of vent openings are provided in the reflector to cool the lantern and permit the lantern to be lighted. The handle permits the lantern to be maneuvered effectively.

Abstract: A luminaire of otherwise conventional design for street or roadway outdoor lighting which employs as its structural housing, members fabricated of suitable plastic material. The slipfitter structure and the base member on which the weighty electrical components are mounted is made of material having superior tensile strength such as cast aluminum. The aluminum base member is fitted closely and secured to the plastic housing. Thus, the portion of the luminaire most subject to stresses is aluminum while for the larger exterior areas suitable molded plastic may be used. The contours of the aluminum base member form an arched structure for supporting the comparative light weight but physically bulky upper plastic housing. By this construction, the plastic housings are placed in compression but all tensile forces are applied to the base member. In this way the plastic housing merely forms a protective shroud for the luminaire.

Abstract: A recessed lighting unit for supporting an energizing lamp adapted to fit into an electrical socket using a housing. The electrical socket and lamp are mounted in the housing. The housing includes an opening for the passage of light from the lamp to the area to be illuminated. A source of power runs to the socket through a wireway. A heat protection mechanism interrupts the flow of electrical power to the lamp and socket upon the generation of excess heat in the vicinity of the housing. The heat protection mechanism is mounted immediately adjacent the housing in the wireway and forms a structural unit with the housing and a junction box.

Abstract: An explosion-resistant fixture is provided comprising a ballast compartment and lamp compartment. The ballast compartment contains the usual electrical components for the fixture and all voids within the compartment are filled with a non-flammable material thereby preventing explosive gases or volatile liquids from entering the compartment. The filling material is preferably an expanded closed cell foam material.

Abstract: A light source consisting of a straight tube fluorescent lamp is mounted almost in parallel with a desk work surface to be illuminated. A housing enclosing this light source is mounted, and this housing is fixed on the surface to be illuminated by means of two support members. The housing has an opening section at its lower position, and a light controller which is formed of two kinds of prism plates is fitted in the opening. The light emitted from the light source is refracted by the prism plates. These beams of light are converted by the above light controller to two types of light components which run almost in parallel with the first and second directions. One of the beams of light falls from the right top in front of the person at desk to the illuminated surface region in proximity to the left hand of the person at desk, and the other beams of light fall from the left top in front of the person at desk to the illuminated surface region in proximity to the right hand of the person at desk.

Abstract: An improved light fixture comprising a housing adapted for tower or pole top mounting and having preferably stacked upper and lower lamp compartments. One reflector in each compartment includes a segment that is located partly behind and partly over a symmetrically positioned lamp included therein so as to reflect light therefrom downwardly and outwardly through a window in a side wall opposite to the reflector. Another reflector similarly located reflects light through a second window in an opposite side wall. Windows in the other two side walls also receive light emanations from the lamp. The axis to the lamp in each compartment is substantially horizontal and is skewed with respect to the side wall windows. The lamp in one compartment is preferably complementarily positioned with respect to the lamp in the other compartment.

Abstract: A luminaire includes a light source mounted within a housing having an opening through which light from the source is distributed. The opening also provides access to the interior of the housing for maintenance of the light source and is closed by a cover which is at least partially translucent and which is hinged to the housing at one end and provided with a pair of spring loaded pins projecting from the sides thereof at the other end to hold the cover in closed position or to be retracted by means of clips to open the cover. The protection of the light source afforded by the housing is improved by an elongated rigid member adapted to extend between the clips of the pins to prevent the pins from being retracted. The clips include coaxial channels and the rigid member includes a reduced portion at one end and a retractable finger at the other end, both of which are dimensioned to be received in such channels.

Abstract: A mounting post for holding a light emitting diode in an electrical pushbutton switch is formed by a cylindrical base which has a pair of cut-out sections located intermediate the top and bottom surfaces of the base which are diametrically opposed on opposite sides of the base. The cut-out sections divide a pair of elongated, parallel passageways for the leads of a light emitting diode (LED) or other light device into upper and lower segments so that a portion of the leads of the inserted LED are exposed in the cut-out sections. The leads of the LED are then crimped in the cut-out sections so that the lead forced against a rear wall of these sections with the leads being restrained from moving by engagement of the leads with upper and lower walls of the cut-out sections.

Abstract: An illuminating device for providing a light beam having a substantially uniform cross-sectional flux comprising a light source, an optical conductor, the optical conducting having an inlet and an outlet surface and a curved body portion therebetween, the curved body portion forming at least substantially a portion of a circular ring, optical means for directing light from the light source to the inlet surface of the optical conductor, and means affecting the flux of light arranged transversely and displaceable to the path of the light beam between the light source and the inlet side of the optical conductor whereby the optical conductor provides the uniform flux at the outlet surface.

Abstract: A nautical light for watercraft includes a cylindrical metal housing having opposite ends, one of which includes a collar for mounting the light on a tubular mast or pole. The housing includes a pair of vertically tiered light chambers each having a lamp bulb coaxial with the housing axis and a window opening radially thereinto through the housing. A cylindrical closed end lens is axially received over the housing with the closed end of the lens overlying an end wall of the housing opposite the mounting end. The lens member is sealed with respect to the housing, and the closed end of the lens member is fastened to the end wall of the housing to facilitate removal of the lens for access to the light chambers. The housing and mounting collar provide a path for heat transfer to the mast on which the light is mounted, thereby providing thermal protection for the lens.

Abstract: A luminaire for roadway lighting using a one-piece reflector developing at least two collimated beams in each longitudinal direction. The collimated beams impinge on sloping faces of a refractor to diverge the beams into a regular pattern covering the street with a sharp cutoff at predetermined longitudinal distances from the luminaire. The refractor employs a compressed parabola comprised of radial sections of comparatively large focal length with steps and risers. The complex shape of the one-piece reflector may readily be produced by a reflector finish applied to a molded plastic matrix. In the luminaire, the prismatic surfaces of the inclined walls of the refractor diverge the formerly collimated beams in a carefully controlled manner to produce very uniform distribution of light.

Abstract: A wireway for supporting at least one wire and a temperature sensitive device designed to interrupt the flow of electrical energy through the wire in conjunction with a selected temperature within a compartment connected to the wireway. The wireway includes a raceway having an enclosed channel with a pair of open ends. The temperature sensitive device is confined within a wireway which includes means for conducting heat from the interior of the compartment to the channel of the raceway. The wireway is also supported by the compartment to form a structural unit.

Abstract: An electric flash device comprises a housing, a flash unit mounted in the housing and having a reflector which comprises a frame, a reflecting mirror carried by the frame, and a flash tube inserted into the reflecting mirror and having at least one pair of main current electrodes and a trigger electrode for triggering the flash tube and electrically connected to the reflecting mirror, the frame of the reflector being formed integrally with the housing.

Abstract: A lighting fixture adapted to be mounted on a ceiling by attachment to an outlet box in the ceiling. The fixture comprises a pan having a bottom and a rim engageable with the ceiling for spacing the bottom of the pan therefrom, a crossbar attached to the bottom of the outlet box in position extending horizontally across the bottom of the box, and fasteners for detachably securing the rim of the pan to the crossbar. The lighting fixture also includes a first layer of insulation in the pan secured to the pan above the bottom thereof, a second layer of insulation secured on the underside of the bottom of the pan, and a light socket for mounting a light source on the underside of the pan below the second layer of insulation. A diffuser having an open top is mounted on the underside of the pan around the socket and the light source.

Abstract: A lighting apparatus adapted to be mounted in a corner space includes a light emitting device mounted on a frame which is adapted to be mounted in the corner space. The frame includes a substantially triangularly shaped front panel disposed in front of the light emitting device and at least partially composed of translucent material to permit light to pass therethrough. At least one mounting member is connected fixedly along one of its edges to an adjoining edge of the front panel with the planes of the panel and the member being disposed at an acute angle. The mounting device includes at least one fastening member receiving opening therein to facilitate the mounting of the apparatus to at least one of the surfaces. The light emitting device may include a light directing device adjustably mounted on the frame.

Abstract: This invention relates to polymer sealed beam headlamp units and more particularly to a trim rim mounting assembly for securing headlamp units to vehicles. The assembly includes a headlamp having a trim rim projecting outwardly from the exterior surface thereof. The rim references the lamp beam and has openings for receiving studs therethrough for securing the headlamp to a vehicle. In a preferred embodiment, the headlamp rim assembly has fasteners secured thereto. Studs located on the vehicle are provided with back nut stops for referentially engaging the headlamp rim as the studs are inserted through the rim openings. The back nuts in one embodiment are axially adjustable for specifying the vehicle reference plane relative to which the headlamp is attached for preaimed attachment. The rim fasteners engage the studs and lockingly secure the headlamp rim between the back nuts and rim fasteners.

Abstract: A lamp device for underwater use comprises a sealed beam lamp (1, 3, 5) mounted in a casing (7) designed as a pressure vessel, so that the lens part (1) of the sealed beam lamp constitutes part of the pressure vessel wall in the form of a pressure vessel lid and so that the back side (5) of the sealed beam lamp having the electrical connecting means of the sealed beam lamp is within a water-tight pressure chamber. The pressure vessel casing bears against the back side of the circumferential flange (3) of the sealed beam lamp, a ring sealing means (23) placed in a groove in the casing being arranged therebetween. The flange (3) is applied against the casing (7) by means of a ring plate (19) bearing against the front side of the flange via a pressure balancing packing (27), the ring plate being releasably tightened to the casing.

Abstract: A light source, reflector and lens are fixed on a base member in the state that their relative position is adjusted to constitute an optical unit. The optical unit is provided within an optical system box having a sealed construction and having a light transmitting window through which a light emitted from the light source is outwardly projected, thereby forming a marker light.

Abstract: A lamp capable of underwater use comprises a rectangular acrylic body with elongate V-shaped recesses in a major surface each receiving an elongate Beta-light. An acrylic cover plate is sealed to the major surface and the body is secured to a steel backing plate with a neoprene layer between to help dissipate shock loadings. The sides of the recesses include an angle of 78.degree. to enhance reflection and may be formed by a reflective lining. The Beta-lights can be received in the grooves by shock absorbent O-rings grouped in pairs with adhesive in between. In a modification a disc-shaped Beta-light is encapsulated and received in a body formed by pour molding which is closed by a cap which is ultrasonically welded into place.

Abstract: This invention relates to Christmas ornaments and more particularly comprises a new and improved Christmas tree-top ornament that provides a most unusual tunnel-light decoration.

Abstract: A physical and electrical separation of the batteries in a conventional flashlight is achieved by placing a separator plate between the batteries. The separator plate, of a non-conductive material, has a first and second side, each with a conductive coating which is not in electrical communication. A second switch means connects the two sides when placed in the "on" position.

Abstract: There is described a lighting panel for a drop ceiling of the type in which a plurality of T-frame members are arranged in a grid, forming a pattern of rectangular openings with ceiling panels supported in the openings by the grid. The lighting panel has an outer frame which is slightly smaller than one of the openings, with a light diffusing panel mounted in the frame. The frame is supported from the grid frame members by a pair of support members that project from the outer frame at opposite ends of one side, the projecting support members allowing the one edge of the outer frame to be supported with the panel in a vertical position. The panel is rotated up into a horizontal position within the grid opening and latch means secures the free edge of the outer frame to the grid frame member to hold the lighting panel in place.

Abstract: Luminaire has refractor with a hinged door to provide access to the enclosed lamp for re-lamping operations. A prismatic optical device is provided on the luminaire to indicate when the door is fully closed on the refractor.

Abstract: Electric light fixture for the illumination of ovens of electric ranges characterized by a pot-shaped metallic mount insertable in a cut-out in an oven wall and holding a lamp socket, lamp and cover glass which can be screwed on to the front side of the fixture into said mounting and the mounting having a stop rim and holding members corresponding to the edge of the cut-out on its rearward side for the lamp socket which is held in position by resilient tabs and the light fixture being particularly characterized in that it can be mounted in position by a single person.

Abstract: The present invention is directed to a moisture sealed and vandal-resistant lighting fixture and is characterized by novel means for securing a diffuser in tightly sealed engagement against a gasket on the housing of a lighting fixture, which means precludes the ingress of moisture and reduces the likelihood that the fixture may be vandalized. More particularly, the invention relates to a lighting fixture, preferably rectangular, wherein the diffuser component is pressed against the mouth portion of the housing component by a cam arrangement, access to the cam arrangement being provided through a wall of the housing via an inconspicuous aperture or apertures whereby only one who is familiar with the operating characteristics of the fixture would recognize how to release the cam arrangement and, hence, the diffuser.

Abstract: An enclosure for a light fixture and the method for making such an enclosure via the securement of a plastic or glass lens, wherein the light fixture has a window which does not have to be opened in normal use for replacement of bulb, but is normally accessible through a rear or side opening. The window opening is circumscribed with a front flange projecting radially outward. A double sided adhesive tape is affixed to the flange and is united with the lens. A metal cored trim covers and secures the flange and the unified tape-and-lens structure. This latter assembly may be further secured by crimping.

Abstract: An improved flood lighting fixture for a horizontally mounted HID lamp is disclosed. Relamping is accomplished by removing an access cover to expose an access opening, pivoting a reflector to a relamping position, exchanging the lamp through the access opening, pivoting the reflector back to its normal position and replacing the access cover.

Abstract: A generally planar, access limiting closure plate is provided in an outdoor lighting luminaire to close off the ballast and optical cavity portions of the luminaire from the exposed slip fitter mounting device at the end of the luminaire housing in order to prevent small animal from entering or nesting in the electrified portions of the luminaire.

Abstract: A pole-mounted, direct luminaire for providing a square, Type V pattern of light distribution. Ready access to the luminaire's internal components (e.g. reflector, transformer, capacitor) is assured by utilization of a spring-loaded, easily removable top cover. The cover includes a reflective surface thereon which aligns with an aperture located in the apex portion of the luminaire's reflector component when the cover is in the closed position.

Abstract: A lamp socket mounting and adjusting assembly for an outdoor lighting luminaire in which the lamp socket is secured to an adjustable socket mounting plate which is variably positionable with respect to a socket mounting bracket to vary both the focal point and the focal tilt axis of the lamp. Separate sets of indicia on the socket mounting bracket indicate both the focal axis tilt and the focal point selected for the lamp.

Abstract: A luminaire for an electric lamp in which the two parts of a bipartite housing having a double-hinge are connected together comprises according to the invention a stop by which the possibility of rotation around a shaft of the double hinge is restricted. In spite of an overlap of one part of the housing by the other part of the housing, the housing is opened and closed thereby in a quasi-single rotating movement.In a special embodiment means are present near the main point of rotation so as to space the two parts of the housing from each other upon opening same.

Abstract: A trunk lid lamp assembly comprising a housing having a first generally tubular part having open ends and a second generally tubular part having a closed end wall with interengaging means which provide a snap fit between said parts. The first part has an axially extending slot into which an offset portion of a bracket extends. The bracket has an L-shaped bayonet slot therein which is exposed to the interior of the first part whereby it may receive the lug of a lamp bulb and hold the bulb in position in the first part. The second part has a portion engaging the bracket to hold the bracket in position in the slot of the first part. The second part also has an axially extending opening in the end wall thereof adjacent the periphery thereof and a terminal extends into the opening and is frictionally held in position. The terminal has a first contact portion.