Abstract: Pairs of laterally adjustable planar brackets supporting fluorescent lamp terminal posts are provided with individual lamp reflectors extending between and secured to opposing pairs of cooperating brackets for retrofitting existing fluorescent lamp fixtures with improved fluorescent lamps and reflectors.

Abstract: The headlight has a reflector which is mounted inside a casing for swiveling about a swivel axis extending approximately in a horizontal center plane of the reflector, close to the apex region of the latter. The front edge, pointing in the light emission direction, of the reflector has an at least approximately circular arc shape in planes at right angles to the swivel axis and the center point thereof is arranged at least approximately on the swivel axis. The casing has a part whose edge pointing opposite to the light emission direction adjoins the front edge of the reflector and, in planes at right angles to the swivel axis, likewise has an at least approximately circular arc shape, and whose center point is arranged at least approximately on the swivel axis. Because of this design the gap between the casing part edge and the front edge of the reflector can be kept small, since when the reflector makes a swiveling movement about the swivel axis, the gap varies only slightly or not at all.

Abstract: A nonplanar mechanical dimmer for use in a variable parameter luminaire includes claws, a mounting region and a convex beam blocking region which does not reflect energy back onto a light source during dimming.

Abstract: A lantern including a battery power supply, a pair of fluorescent tubes, a normally open manually operable multi-position switch, a motion detector device with a normally open switch and an electric-powered horn. The switch operates to selectively connect the power supply with one or both of the tubes or with the motion detector. By operation of the multi-position switch, the motion detector selectively operates to connect the power supply with the pair of tubes, with the pair of tubes and the horn or with the horn when the switch thereof is closed in response to detected motion. The lantern further includes a light reflector selectively moveable from a stored position to an operating position where it reflects and concentrates light emitted by the tubes in a limited field of view adjacent a side of the lantern within which motion is to be detected by the motion detector.

Abstract: Described is an adjustable flood light fixture suitable for outdoor use which can adjustably cut-off unwanted glare through the use of a truncated cone shroud which can be rotated 360.degree..

Abstract: A control circuit for automobile headlamps which emit light in variable color. The control circuit prevents left and right headlamps from emitting beams of light in different colors. Each headlamp includes a white light bulb, and a yellow globe is moved from a first position to a second position to cover the bulb when yellow light is selected, and the yellow globe is moved back to the first position when white light is selected. If the movement of the globe stops between the first and second positions, the control circuit generates a fault signal for turning off the headlamp associated with the fault, thus preventing the headlamps from emitting light of different colors. Alternatively, the control circuit can adjust the position of the globe for the headlamp without the fault to be in agreement with the position with the headlamp having the fault, such that both headlamps emit light of the same color.

Abstract: An electric trouble light assembly including a shroud and a guard and with an opening in the shroud at a location out of line of vision from the bulb included in the assembly so that the user can look through the opening and view the work station. Magnifying lenses can be placed in the shroud opening, and there can also be a viewing opening in a guard on the front face of the assembly, and a magnifying lens can be supported on the guard. Finally, a cover is movably mounted on the shroud for movement into and out of a position of closing the shroud viewing opening.

Abstract: An improved lighting fixture is disclosed for imaging a high-intensity beam of light at a distant location. A specially-faceted near-elliptical reflector cooperates with a gate aperture and a single aspheric lens to produce a beam that incorporates a very high proportion of emitted visible light, while the reflector has a dichroic coating that reflects only a low proportion of infrared light. The projected beam thereby has a relatively low energy density, such that the front portion of the fixture can be reduced substantially in size and weight. The gate is selectively rotatable relative to the fixture's rear housing.

Abstract: An adjustable beam light fixture with glare light shielding for illuminating a selected area without illuminating other areas. The adjustable beam light fixture has a reflector for holding a lamp and directing light from the same. The reflector is adjustably mounted on a housing. The mounting is accomplished by means of slots formed in the reflector and threaded fasteners extending outwardly from the housing and into the slots. The portion of the reflector adjacent the housing is arcuately shaped and a portion of the housing adjacent the reflector is arcuately shaped as well and with the same degree of arc. In the preferred embodiment, the housing includes means for mounting the adjustable beam light fixture on a surface.

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 light attenuator sleeve which removably attaches to a high/low beam halogen vehicle headlight bulb. The sleeve is designed to fit onto the high/low beam bulb assembly so that light emitted by the bulb passes through the sleeve and the intensity of the light is attenuated. The sleeve is attached to the high/low beam bulb assembly after the low beam filament is expired and has an appropriate degree of opaqueness to attenuate light emitted by the high beam filament to a low beam intensity after passing through the sleeve.

Abstract: A lantern having a base, a globe, and a top is provided with a slidable shutter which is movable between an open position in which light can shine through the globe throughout 360.degree. and a closed position in which the shutter blocks light from shining through a portion of the globe. The globe has a generally rectangular transverse cross section provided by a pair of generally flat front and back surfaces and a pair of generally flat side surfaces. The shutter is slidable within a pair of tracks which are provided by ribs which extend along the sides of the back surface. The shutter is releasably latched in the closed position by a pushbutton latch on the top of the lantern.

Abstract: A lamp used in photography and television comprising a housing having a filter cavity into which an optical element provided with a handle can be introduced, the housing having first and second shafts situated between two sidewalls of a holding device and extending in a longitudinal direction of the housing and bridging the filter cavity, the handle of the optical element is provided with first and second recesses which are arranged to engage the first and second shafts, respectively, the first shaft being surrounded by the first recess of the handle to allow the optical element to swing about the first shaft from a working position, in which the optical element is located within the filter cavity, into a second position in which the optical element is removed from the filter cavity and the second recess engages the second shaft, and a locking mechanism is provided for retaining engagement of the second recess with the second shaft when the optical element is in the second position.

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: A dippable vehicle-headlamp, particularly a car headlamp, which is operative to transmit both ultra-violet and visible light and which includes a light source which is intended to emit both visible and ultra-violet light, a reflector and a filter. The reflector (1) and the light source (2) are intended to transmit simultaneously a light lobe which corresponds to a dipped-beam lobe and a full-beam lobe. The filter (4) is intended to filter-out visible light, but to transmit ultra-violet light. The invention is characterized in that the filter is mounted for displacement from a first position (FIG. 1) in which the filter (4) is located out of the beam path for transmission of the light lobe, to a second position (FIG.

Abstract: This invention produces a spot beam or a broad beam having no unilluminated regions within the beam. In one case, the size of the beam is established by the relative position of the light bulb and a uniquely shaped reflector. The apparaent brightness of the beam is established by oscillating the beam in a controlled fashion. In another case, both the size of the beam and the apparent brightness are established by oscillating the beam in a controlled fashion. The result of this invention is a spot beam that can be made into a broad beam without the dark regions that result from the existing adjustment techniques and also a broad beam having an apparent brightness greater than that attainable by other techniques.

Abstract: A headlight for a motor vehicle which can selectively be used as an ordinary headlight or a fog light. A yellow cover is slidably mounted slidable along the axial direction of the bulb of the headlight so that it can be moved between a position where is surrounds the bulb, in which light emitted by the bulb must pass through the cover before reaching the reflector, and a position where the light from the bulb can proceed directly to the reflector without passing through the cover.

Abstract: A lens carrier (10) is disclosed for use in a stage lamp. The lens carrier (10) supports a lens (26) in alignment with the lamp axis (12) while permitting limited movement of the lens along the lamp axis to focus the lamp toward the light. First and second members, (14, 22) define facing cylindrical surfaces (20, 24). A bearing assembly (28) having resilient deformable ball bearings (34) is positioned between the cylindrical surfaces to maintain alignment of the lens on the lamp axis and permit the second member and lens to move along the lamp axis relative to the first member while maintaining the alignment.

Abstract: A luminaire having a boxlike housing with a removable cover secured thereto. The luminaire's reflector, having the socket and lamp components located therein, is rotatable on a planar mounting plate, thus enabling two light output distributions (patterns) to be provided, each at about ninety degrees from the other. The preferred lamp is a high intensity discharge (HID) lamp (e.g., high pressure sodium).

Abstract: A signal lamp having in its housing with an opening, a bulb, an optical elements installed in the housing for converting the light of the bulb into parallel rays of light, a colored lens being colored differently in plurality of regularly disposed patterns, a slit plate installed slidably and provided with portions pervious to light corresponding to said pattern in shape and a solenoid, by which the slit plate is shifted and the radiated light is converted in its color.

Abstract: A multi-section multi-purpose hand light incorporates a shade casing, a head cover, a refraction hood, red filter lens and a body comprised of a number of cylindrical sections. The red filter lens can be releasably fastened to the retractable refraction hood. The light being emitted thereby will be a focused red light beam surrounded by an aureole of white light. This hand light may serve as a striking signal for help where needed to facilitate search and rescue efforts by a tracing team. The intensity of illumination can be increased by an increased number of the cylindrical sections. Spare bulbs or replacement parts can be stored in the bottom section of the body. The hand light also serves as a regular hand light by removing the red filter lens from the hood and coupling it to the bottom section of the hand light.

Abstract: An automobile dome light accessory adapted to slide under the outer edge thereof and extend downwardly therefrom and around the dome light a sufficient distance that the light can be left on for use of a front or back seat passenger without adversely affecting the driver's vision during night driving. The accessory of this invention is a removable accessory that can be transfered between vehicles.

Abstract: A submersible lamp having a standardized air impervious housing with a lens formed therein in optical alignment with a bulb carried within the housing. The housing defines a predetermined quantity of air and has an opening at the lower end thereof such that upon submersion in water a limited amount of water is allowed to enter the housing, trapping the air within the housing and preventing the water from rising above a predetermined level. A channel is formed on the rear wall of the lamp housing to receive a bulb and bulb socket support bracket for the selective mounting and positioning of the bulb within the housing in accordance with the function which the lamp is to perform.

Abstract: A luminaire includes a generally parallelepipedic housing with a square opening into which a reflector and lamp assembly can be inserted and fastened. The opening is square as is the reflector so that it can be extracted and rotated 90.degree. as a unit. The reflector has a parabolic concave reflective surface and a lamp with an elongated light source, producing a rectangular pattern which is rotated as the orientation of the reflector is rotated.

Abstract: A "wall wash" assembly for use with a ceiling mounted, recessed lighting fixture comprising a reflector housing having an open end, includes a ring member dimensioned for receipt in the open end of the reflector housing. A concentric ring segment is mounted on the ring member for movement 360.degree. thereabout. An auxiliary reflector is mounted on the ring segment for movement therewith. Positioning of the auxiliary reflector by movement of the ring segment with respect to the ring member provides a desired "wall wash" illumination pattern. An optional baffle member is receivable on the ring member opposite the auxiliary reflector for blocking light emanating from the reflector housing to be excluded in the "wall wash" illumination pattern.

Abstract: The present invention provides a spotlight adjusting system for controlling the beam of a spotlight. A ellipsoidal reflector-lamp assembly is movable to a plurality of positions relative to the iris. The diaphragm of the iris is independently adjustable to a plurality of positions so that the light being reflected from the focal area of the reflector assembly can be controlled between passing the full beam received at the iris to a portion of the beam received there. The rear lens is adjustable relative to the iris and the front lens. The system provides mounting structures for both a long throw and a short throw front lens so that the system can be selectively mounted with either a removable long or short focal front lens.

Abstract: Generator having a light source of high intensity which is passed through colored filters and into fiber optic bundles, the ends of the bundles being moveable relative to a kaleidoscope-type projecting lens.

Abstract: A pharmacy-type lamp having a light source disposed at one end of a tubular swing arm the other end of which extends into a vertically disposed support tube secured to a base pedestal. The tubular support is formed from coined seam tubular stock having extra infolded edges material extending from the seam during the tubes formation to form a rib-like track within the support tube for coaction with stops coined from the material of the swing arm, at an extremity thereof disposed within the support tube, to facilitate rotation of the swing arm within the support tube while limiting such rotation to almost 360.degree.. A clutch, carried at one end of the support tube, centers the swing arm therewithin and facilitates gripping and release of the swing arm with respect to the support tube to restrict and permit movement (sliding and rotational) of the swing arm within the support tube.

Abstract: Interior light for vehicles with a reading mode in which the beam can be directed toward either the driver or the front-seat passenger as desired. The light has an opaque screen (13) in the path of the rays of light between the bulb (6) and the reflector (1). The screen has a cutout (15). The reflector (1) consists of at least two paraboloid reflecting surfaces (8 and 9) with optical axes (10 and 11) that meet at an angle .alpha.. The mask (13) is adjusted so that the cutout (15) directs the light against one or the other of the reflecting surfaces (8 or 9).

Abstract: The invention discloses an auxiliary head lamp device for a car equipped with a cover which is optionally fitted to a car and is lit during driving in fog or the like. The cover of this device can be opened when a solenoid of a cover driving mechanism is energized by operating a switch disposed inside the room of the car. The solenoid releases engagement of a stopper that restricts the cover urged in the opening direction. The switch may be used also as a switch for a light source bulb. After the solenoid is energized and the opening operation of the cover starts, a current to the solenoid is automatically cut off so that over-heat or burn-out of the solenoid that would occur if the current is continuously applied thereto can be prevented.

Abstract: This invention discloses an auxiliary head lamp device for a car equipped with a cover, which head lamp is optionally fitted to a car, is lit when driving in fog and is equipped with a cover that can be opened by remote switching operation. The cover of this head lamp device is opened when a solenoid of a cover driving mechanism is energized by operating a switch disposed inside the room of the car. The solenoid may have a function of releasing the cover from a stopper which restricts the cover from moving in its opening direction. The switch may be used also as a switch for the bulb of the auxiliary head lamp. An electric circuit including two thermostat switches for preventing over-heat of the solenoid is preferably employed. The solenoid may be in deenergized state while keeping the bulb lit. A device equipped with a rotary solenoid for directly opening and closing the cover is also disclosed.

Abstract: A book-light characterized by its small size and light weight is formed from suitable plastic material with a base supporting a vertical lamp-bearing arm and an integral clamp consisting of a U-shaped frame having side arms rigidly attached to the base and a central plate flexibly attached to the base so that the entire book-light may be attached to a book or other publication by inserting the cover or pages between arms and the central plate. The vertical lamp-bearing arm is mounted at one end in a transverse slot in the base, while the other end supports the lamp proper in a manner to permit both circular and vertical motions.

Abstract: An improved device for controlled illumination of a cavity such as in endoscopy or inspection of machinery within a housing; the device comprises a light source and a fiber optics for feeding light into the cavity, and a control means arranged between the light source and the entrance plane of the fiber optics for controlling the luminous density at the exit plane of the fiber optics; the control means is in the form of a diaphragm disc arranged between the light source and the entrance plane of the fiber optics and is capable of linear or rotational displacement or motion; the disc has an opening having a width that varies cross-wise to the direction of displacement or motion of the disc-shaped diaphragm so as to provide a variable aperture; the luminous density at the exit plane will, in general, be determined by the light flux that impinges upon the entry plane, and that flux is controlled by the variable aperture.

Abstract: A multi-lamp fluorescent fixture including one or more reflecting assemblies introduced into the fixture in place of removed fluorescent lamps and configured to redirect outwardly from said fixture to the areas intended to be illuminated a substantial portion of the illumination received from the lamps remaining therein which would otherwise be directed and absorbed within the fixture.

Abstract: A variable focus flashlight has a cylindrical flashlight body and a separate flashlight head which is threadedly secured to the body. A bulb is supported in fixed relation to the body, and a reflector is supported in fixed relation to the head. Rotation of the head changes its longitudinal position relative to the body, hence moving the reflector either forwardly or rearwardly relative to the bulb and thereby adjusting the focus of the flashlight beam.In order to retain the selected focus adjustment, an expansible spring is disposed partly inside the flashlight body and partly inside the flashlight head, the corresponding ends of the spring being seated in respective ones of those members. The expansive force of the spring biases the interengaging threads of the flashlight head and body, producing a substantial frictional force so as to retain the desired rotational position of the head.

Abstract: Luminaire apparatus, including a luminaire having a paraboloidal reflecting surface and a source of radiant energy such as a light source located at the focal point of the reflecting surface, is combined with means for selectively refracting light emitted by the light source and carrying out an improved method of producing a flood configuration of reflected light.

Abstract: In a vehicle headlamp, a light deflecting system is provided which comprises two plate-like transparent deflecting elements. Each element has a series of parallel fibs, and the elements are movable one relative to the other at right angles to the length of the ribs. The profiles of the ribs are so chosen that, in a neutral position of the deflecting elements, each rib on one deflecting element faces a rib of complementary shape on the other deflecting element, so that the system imposes no net deflection on light rays passing through. To produce a deflection of these rays, the deflecting elements are shifted relative to the other, so that then, the deflection suffered by the light in passing through one deflecting element is not wholly cancelled by the deflection suffered in passing through the other deflecting element; by suitable choice of the profile of the ribs, the net deflection is the same for all the deflected rays.

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 temperature control device is provided which comprises a thermostatic control means. The thermostatic control means is for automatically controlling the temperature of a location to a predetermined temperature. A means is additionally provided for setting the predetermined temperature. The means for setting includes an elongated temperature scale and a set point. The scale and set point are movable with respect to each other. The set point indicates the predetermined temperature on the scale.The scale has associated therewith different colors along the periphery thereof. A means for illuminating the temperature scale near the set point is provided to reveal the color associated with the predetermined temperature. Thus an observer of the temperature control device, knowing the colors associated with the temperatures or knowing the colors at which he is most comfortable, can immediately observe from a distance the predetermined temperature at which the device is set.

Abstract: A vehicle headlamp is constructed with its reflector and front lens adapted to be fixedly mounted in the bodywork of the vehicle, but incorporates a beam deflecting system, in order that the direction of the beam may nonetheless be adjusted. In one form, the beam deflecting system comprises two Fresnel lenses, mounted face to face in a position to intercept the whole of the headlamp beam, one being equivalent to a diverging lens with cylindrical surfaces, and one being equivalent to a converging lens with cylindrical surfaces. In a neutral position, the effects of the two lenses cancel out, so that no deflection of the beam occurs. One of the lenses is movable in translation away from the neutral position, so that a deflection of the beam occurs, without any other change in the beam pattern. In modified embodiments, the stationary Fresnel lens is not used; instead, its effect is produced by using a reflector of modified shape.

Abstract: A lighting facility which includes spaced parallel end plates having a light assembly extending therebetween. A flexible cover extends between and is supported by the end plates so as to be rotatable entirely about the light assembly.

Abstract: The angular distribution of illumination passing through a selectively diffusing element can be varied by placing the diffusing element in a reflector unit so that the diffusing element is in the path between a light source and the object to be illuminated. A variable diffuser can comprise a liquid-crystal cell driven by a variable voltage to control the amount of diffusion by the reflector unit. The control voltage can be set in accordance with change in focal length in a zoom lens of a camera using the light source and reflector unit as a flash gun.

Abstract: Floodlight has a reflector mounted for selective adjustment to different positions relative to the light source for providing desired light distribution.

Abstract: An automatic gel changer for remote operation, including a rotary solenoid associated with each gel frame to rotate such frames in and out of the path of the beam of light from the spotlight. Also associated with each gel frame is a damper for causing the motion of the gel frames as provided by the solenoids to be smooth and continuous.

Abstract: A safe-speed indicator system including a projector device, projecting beams of different colors, such that each pair of beams intersect each other at different predetermined distances which expand during any slowdown of the vehicle upon which the said projector device is mounted, to give the driver following it a measure of how fast a speed change he should anticipate to avoid collision. A color-pattern attached to the speedometer is used by the following driver to find out from the observable color(s) of the projector of the preceding vehicle what his safe speed is.

Abstract: The shield for navigation lights includes a generally horizontal shade panel and downwardly extending side panels. The side panels are adjustably clamped to the mast of the navigation light so that the shade panel casts a controlled shadow over the boat and its occupants without violating mandated visibility criteria.

Abstract: A photographic flash device comprising a first mechanism for varying the angle of divergence of a flashed light and a second mechanism for varying the direction of the flashed light. The first variable mechanism is provided with a first body having a light source, a second body, a first slidable molding which has an optical panel to cover the front of the light source, a second slidable molding which surrounds the first slidable molding, and detent means which control slide movement of the first slidable molding and connects the first slidable molding with the first body. The second variable mechanism changes the direction of the flashed light from the light source by rotatably connecting the moldings to an additional body.

Abstract: This application relates to a lighted display chamber for momentos, gimcracks, trophies and the like, and preferably translucent or transparent ones since the device of this invention includes a blinking light means to transmit light from the base through the display object. The blinking light is actuated by a predetermined positioning of the top of the display chamber.

Abstract: A photographic flash device comprisingA flash tube disposed in a case and a converging lens disposed in front of the flash tube, the improvement is thatThe converging lens is mounted on the front part of a slidable frame which slidably and permanently engages with the case at the front part thereof in a manner to enable adjustment of distance between the converging lens and said flash tube so as to change angle of divergence of flashed light, and a space inside the frame is covered by a protecting cover.

Abstract: Illumination apparatus including a source of artificial light and shutters for totally concealing the source of light during a first amount of time to simulate night conditions, for gradually exposing increasingly larger portions of the source of artificial light during a second amount of time to simulate dawn and morning conditions, for constantly exposing a portion of the source of artificial light during a third amount of time to simulate mid-day condition, and for gradually concealing an increasingly larger portion of the source of artificial light during a fourth amount of time to simulate afternoon and dusk conditions.