Abstract: A mounting system for three axis rotational adjustment of a light projector assembly of a projection television, the mounting system having a spherical wall and a spherical bracket slidably engaged with the spherical wall and moveable relative thereto. The wall and bracket coact with one another to rotate the light projector assembly about three axes, thereby restricting movement of the projector assembly to a portion of a spherical path and enabling adjustment of an image generated by the projector assembly on a screen of a projection television to a desired geometry without affecting picture centering.

Abstract: An illumination system includes an illumination unit having at least one light emitting device which emits a light beam of a predetermined wavelength and at least one holographic optical element which reduces a cross section of the light beam emitted from the light emitting device, and an optical path changer which changes a proceeding path of an incident light passing through the holographic optical element.

Abstract: A double lamp utility light includes a vertically split light housing formed in two halves with an elongated upper light portion extending from a hollow lower handle portion. An electrical outlet is provided in a bottom surface of the handle. A pair of switches on the handle control respective ones of a pair of twin bulb fluorescent lamp assemblies. A lens assembly is releasably attached to the housing and can be removed and installed without tools for changing the lamp assemblies.

Abstract: A stand lamp assembly includes a stand frame unit and auxiliary and main lamp units. The auxiliary lamp unit includes a night lamp disposed removably on a night lamp socket, a light sensor to control activation of the night lamp in accordance with ambient light conditions, and a sleeve disposed around the night lamp and having a rotatable cover body that can be opened to permit removal of the night lamp via an opening in the sleeve.

Abstract: The present invention relates to a multi-color pipe-type lamp, which includes an inner tube and an outer transparent tube. The characteristic of this invention is to provide several middle tubes between the inner tube and the outer tube. The middle tube can be the same color of different color as desired and can be arranged in order or in disorder. As the lamp is lightened, it obtains multi-color due to the colorful middle tube that increases the decorative effect. Various decorations can be obtained according the invention.

Abstract: A high intensity solid state light pulse generator, has a low voltage, low range radio frequency carrier wave generator, the output of which is modulated by a low frequency sweep signal, to generate sonoluminescent light pulses visible to the human eye, within a desired spectrum. The modulating sweep signal can be computer generated in a predetermined mode, for a range of outputs. In one embodiment, a carrier wave at 450 kHz is modulated by way of an input in the audio range of 20 to 20,000 Hz. The colour of the output pulses is held to be a function of the modulating frequency. By selection of a suitable modulating frequency, monochromatic light pulses of a predetermined colour may be provided. A semi-mirror laser technique is used in order to amplify the light pulses, to achieve high intensity bursts of light at reduced frequency.

Abstract: A lamp with an unpolished surface is herein described. The lamp comprises a closed body which comprises a source of light adapted to be connected to a source of power, contacts to connect said source of light to a source of power, and a cover. The cover is configured and disposed to permit light to exit the lamp when connected to a source of power. The cover comprises an inner surface facing the interior of the lamp and an outer surface facing away from the lamp. At least the outer surface facing away from the lamp comprises unpolished glass configured to provide the unpolished surface. The unpolished glass of the outer surface comprises a surface having a roughness which is minimized.

Abstract: A method and apparatus for illumination and entertainment by light emitted from a guide via scattering provides a new form of visible lighting. An illumination source is coupled to an optical guide to produce a beam within the guide. The beam is disrupted by a emitting surface which may have design features embedded thereon. The disruption causes scattering of the beam, producing an illuminated body. The disruption may be a matte coating on a side wall of the guide, a lens with a matte image thereon at the end of the guide, or other discontinuity that results in an entertaining or pleasing illumination pattern.

Abstract: A luminaire comprising a housing with an opening on one side. A lamp and reflector are contained in the housing. The luminaire includes an arrangement to distribute radiated heat in front of the lamp away from an area of the center line of radiation towards areas located laterally with respect to the center line of radiation of the luminaire.

Abstract: A light unit for use in a series circuit has a mechanical switch for providing an alternate circuit path around the leads of a bulb when the bulb is loose or removed. The mechanical switch is biased toward a closed position such that, when the bulb is removed from the light unit, the switch closes to provide the alternate circuit path. The switch is displaced to an open position when a bulb is secured to the light unit to break the alternate circuit path and route electricity through the bulb. A shunt assembly having a high resistance element and a retainer can be secured within a socket cavity of the light unit.

Abstract: A headlamp (2; 3) of a vehicle (1) has a light source (4; 5) comprising a plurality of opto-electronic elements (11; 12; 13; 14), preferably light-emitting diodes (LED's). At least one of these opto-electronic elements (11; 12; 13; 14) has, in operation, a luminous flux of 5 lm or higher. According to the invention, the spectral characteristic of the light beam (6, 6′; 7, 7′) generated by the light source (4; 5) depends upon the position in the light beam (6, 6′; 7, 7′). Preferably, the light source (4; 5) comprises opto-electronic elements (11; 12; 13; 14) only. The light beam comprises at least two light beam segments (6, 6′; 7, 7′) having essentially different spectral characteristics. Preferably, one of the light beam segments (6′; 7′) is mesotopically tuned.

Abstract: The invention relates to an illuminating glass product having far infrared ray radiation in which far infrared ray radiating glass is made of use for an illuminating bulb or a glass diffuser for illumination and emission of far infrared rays at the same time.

Abstract: An arrangement is disclosed for cutting off intensive radiation in projectors and/or illumination devices whose projection head, which projects the light, is mounted in a receptacle or holder rotatable about an azimuth axis so as to be swivelable about an additional axis arranged vertical to the azimuth axis. It comprises a cutoff mechanism which comprises a coupling member, and light-absorbing means or cutoff means, which is fixedly connected with the receptacle and which is rotatable jointly with the latter and with the projection head about the azimuth axis, wherein the light-absorbing or cutoff means are positioned in the cutoff position in front of the light outlet opening of the projection head or of an objective or in an intermediate image plane located within the projection head. The arrangement is suitable for application particularly with projection of image contents on plane, arched, or curved projection surfaces.

Abstract: A modular light emitting diode (LED) mounting configuration is provided including a light source module having a plurality of pre-packaged LEDs arranged in a serial array. The module includes a heat conductive body portion adapted to conduct heat generated by the LEDs to an adjacent heat sink. A heat conductive adhesive tape connects the LED module to the mount surface. As a result, the LEDs are able to be operated with a higher current than normally allowed. Thus, brightness and performance of the LEDs is increased without decreasing the life expectancy of the LEDs. A plurality of such LED modules can be pre-wired together in a substantially continuous fashion and provided in a dispenser, such as a roll or box. Thus, to install a plurality of such LED modules, a worker simply pulls modules from the dispenser as needed, secures the appropriate number of modules in place, and connects the assembled modules to a power source.

Abstract: Illumination device (1) with light emitting diodes (LED) and an LED support element (10) on which a number of light pixels (11, 11′) are arranged which emit light. Said light pixels (11′) each comprise a number of LEDs with emission wavelengths suitable for additive colour mixing of the light from the light pixels (11′). A controller (5) is provided on the LED support element (10), by means of which a colour temperature and intensity parameter of the additively colour mixed light of each individual light pixel (11′) may be set. The controller assigns electrical LED currents to the colour temperature and intensity parameters and controls the LEDs in the light pixels (11′) by means of the assigned LED currents.

Abstract: An apparatus is disclosed comprising a lamp which produces a first light which may be a white light; a first light valve, a second light valve, a first color separator, and a first aperture device. The first color separator receives the white light from the lamp, and separates the white light into a first color light and a first residual light. The first aperture device receives the first color light and the first aperture device can be controlled to modify a frequency of the first color light to the first light valve. The second light valve receives at least a portion of the first residual light. The first aperture device could also be controlled to substantially block at least a portion of the first color light.

Abstract: An apparatus is disclosed comprising a lamp which produces a first light which may be a white light; a first light valve, a second light valve, and a first aperture device, which may be a first electronically switchable filter. The first aperture device or the first electronically switchable filter function as selectively variable color separators. The first aperture device or the first electronically switchable filter each can be placed in a first state where the first light is separated into a first color light and a first residual light, and a second state where the first light is separated into a second color light and a second residual light. The first light valve receives the first light in the first state and the second light in the second state. The second light valve receives at least a portion of the first residual light in the first state or at least a portion of the second residual light in the second state.

Abstract: The present invention is an illumination system for use near a wall or surface for creating one or more images of light thereon. An important characteristic of the invention is the ability to produce coordinated images by passing radiant light through an at least one convergent refracting lens. The lens may have a decorative shape, and the surface of convergent refracting lens may be embellished with etched, drawn, painted or otherwise applied designs for projecting said images, or a prism for producing decorative rainbow spectra effects. The invention is capable of being used in common household lighting fixtures.

Abstract: The effective coherence of a synchrotron beam line can be tailored to projection lithography requirements by employing a moving holographic diffuser and a stationary low-cost spherical mirror. The invention is particularly suited for use in an illuminator device for an optical image processing system requiring partially coherent illumination. The illuminator includes: (1) a synchrotron source of coherent or partially coherent radiation which has an intrinsic coherence that is higher than the desired coherence, (2) a holographic diffuser having a surface that receives incident radiation from said source, (3) means for translating the surface of the holographic diffuser in two dimensions along a plane that is parallel to the surface of the holographic diffuser wherein the rate of the motion is fast relative to integration time of said image processing system; and (4) a condenser optic that re-images the surface of the holographic diffuser to the entrance plane of said image processing system.

Abstract: A light unit for use in a series circuit has a mechanical switch for providing an alternate circuit path around the leads of a bulb when the bulb is loose or removed. The mechanical switch is biased toward a closed position such that, when the bulb is removed from the light unit, the switch closes to provide the alternate circuit path. The switch is displaced to an open position when a bulb is secured to the light unit to break the alternate circuit path and route electricity through the bulb. A shunt assembly having a high resistance element and a retainer can be secured within a socket cavity of the light unit.

Abstract: An indicator light for a motor vehicle includes a divider screen adapted to divide a light beam into a plurality of elementary light beams which are then added together downstream of the dividing screen. A first coloring means, for coloring some of the elementary light beams, is located at a distance from the divider screen. The light unit includes a second coloring means adapted to color at least some of the elementary light beams, the second coloring means being spaced away from the divider screen and the first coloring means.

Abstract: An improved light fixture for an inflatable structure which includes a cooling arrangement which cools the light source in a light container. The cooling arrangement including a passageway which directs a cooling fluid into and out of the interior of the canister. The cooling arrangement includes blower to direct the cooling fluid toward the light source and a diffuser to distribute the cooling fluid about the light source. The cooling arrangement also includes a temperature monitor to monitor the temperature in the light container and to activate the blower upon detecting a predetermined temperature in the light container and/or to deactivate the light source upon detecting a predetermined temperature in the light container.

Abstract: A fitter for a lighting fixture is provided that is made primarily from glass, plastic, or a similar material. The novel fitter design is affixed to the lighting fixture near a socket, and is used to hold in place a removable shade. The shade may rest in the novel fitter, or may be removably attached to it using mechanical attachment means.

Abstract: A direct/indirect task light for use in connection with office work stations has an elongated light source, preferably a fluorescent bulb as the source. The light source has a housing that is imperforate, but has an opening directed toward an overlying canopy that forms a reflector for the light. The canopy has perforations or apertures therethrough so that light will pass through the perforations to the exterior to provide ambient lighting. Light striking the canopy surface between apertures will be reflected from the lower surface of the canopy onto an office work surface.

Abstract: The present invention is an illumination system for use near a wall or surface for creating one or more images of light thereon. An important characteristic of the invention is the ability to produce coordinated images by passing radiant light through an at least one convergent refracting lens. The lens may have a decorative shape, and the surface of convergent refracting lens may be embellished with etched, drawn, painted or otherwise applied designs for projecting said images, or a prism for producing decorative rainbow spectra effects. The invention is capable of being used in common household lighting fixtures.

Abstract: A sidemarker light which has a light housing, an EL slice and a fastening mechanism. The light housing has a bottom plate with at least two through holes and a top cover attached to the bottom plate. The EL slice has a lighting portion and two conductive terminals. The fastening mechanism has a pair of terminal receivers and a pair of plugs. Each terminal receiver has a terminal-buckling portion and a plug-buckling portion. The terminal-buckling portions buckle the two conductive terminals. The plug has a coupling portion that is buckled by the plug-buckling portion and a through portion that passes through the through holes on the bottom plate.

Abstract: A flood light includes a lamp that is located at a focus of a reflecting mirror having a reflecting surface whose cross-section is oval and partially arcuate. A concave lens having negative refracting power is disposed between first and second foci about which an elliptical reflecting surface of the reflecting mirror is disposed. Some light rays from the lamp pass directly from the lamp through the lens while other rays from the lamp are reflected by the mirror before passing through the lens. Generally speaking, on the upstream side of the lens, the reflected rays enter the lens outboard of the rays that pass directly from the lamp to the lens. This construction provides a small flood light that has a high optical output, and effectively uses bundles of rays emitted from the lamp to produce a luminous intensity distribution desirable as light for range finding.

Abstract: A lamp assembly comprising a transparent body having a front surface and a back surface, the back surface having at least one convex curved portion, each such convex curved portion having at least one axis perpendicular to the front surface, and an internally reflective curved surface facing the front surface of the transparent body, a cavity in each convex curved portion, having sidewalls and a bottom, adapted to receive a light emitting source, and a reflective surface at the bottom of each cavity oriented so that light emitted by the light emitting source is reflected by the reflective surface onto the internally reflective curved surface of the convex curved portion. In some embodiments, the internally reflective curved surface also provides one or more electrical circuits for one or more light emitting sources.

Abstract: A reflector lamp has a generally parabolic shaped housing (12) with an interior surface coated with a layer (14) of silver having a protective layer (16) of a stable protective oxide, such as silica, disposed thereon. An intermediate layer (18), such as a layer of elemental silicon, protects the silver layer during deposition of the silica layer and is completely or substantially consumed during formation of the silica layer. The lamp includes a light source (48) having a longitudinal axis (x) disposed on the parabolic reflector axis and preferably disposed outward of the parabolic focus (F). During lamp fabrication, the protective coating is preferably annealed to improve reflectance. The preferred lamp will have a lumens per watt greater than 14.

Abstract: A luminaire has an inner annular housing separating an interior cavity of an outer annular housing of the luminaire into a central portion and an outer annular portion. The luminaire also has an annular support element detachably mounted to a bottom end of the inner annular housing and removably supporting an annular louver in the outer annular portion of the interior cavity outside of the inner annular housing and below an illumination lamp of the luminaire.

Abstract: A kaleidoscope or teleidoscope is provided in which the viewed object is an image focused onto a back-projection screen positioned at the objective end of the mirror system. Focusing may be by a pair of achromatic lenses which may be displaceable toward and away from the screen and the screen preferably comprises a wax layer sandwiched between glass plates one of which is in contact with the objective ends of the mirrors. In one embodiment an illuminated soap bubble in a glass globe is viewed through a kaleidoscope the length of which is reduced by redirecting the image by means of mirrors.

Abstract: A polarized light source includes a diffuse light source and a reflective polarizing element placed: proximate thereto. The reflective polarizing element transmits light of a desired polarization and reflects light of another polarization back into the diffuse source where it is randomized. Some of the initially rejected light is thus converted into the desired polarization and is transmitted through the reflective polarizing element. This process continues, and the repeated reflections and subsequent randomization of light of the undesired polarization increases the amount of light of the desired polarization that is emitted by the polarized light source.

Abstract: A light source arrangement is used for providing illumination to an essentially planar area (405) in an electronic device. The arrangement comprises an encapsulated semiconductor light source (402) in the vicinity of an edge of an essentially planar light guide (404). Light emitted by the encapsulated semiconductor light source is to be coupled into the light guide through the edge. The encapsulated semiconductor light source comprises a semiconductor chip (301) encapsulated in an encapsulation block (302) that comprises a curved surface facing the edge of the planar light guide. The encapsulation block (302) has also a D-shaped cross section in a plane perpendicular to the plane of the essentially planar lightguide so that the arcuate part of the D corresponds to said curved surface. The encapsulation block extends to a predetermined distance in an extension direction locally perpendicular to the plane of said D-shaped cross section.

Abstract: A reflector lamp has a generally parabolic shaped housing (12) with an interior surface coated with a layer (14) of silver having a protective layer (16) of a stable protective oxide, such as silica, disposed thereon. An intermediate layer (18), such as a layer of elemental silicon, protects the silver layer during deposition of the silica layer and is completely or substantially consumed during formation of the silica layer. The lamp includes a light source (48) having a longitudinal axis (x) disposed on the parabolic reflector axis and preferably disposed outward of the parabolic focus (F). During lamp fabrication, the protective coating is preferably annealed to improve reflectance. The preferred lamp will have a lumens per watt greater than 14.

Abstract: An illumination optical system includes a luminous intensity distribution converting optical system for converting an illuminance distribution of a light source image into a luminous intensity distribution upon a predetermined plane, a light transmitting element having its light entrance surface disposed substantially in coincidence with the predetermined plane, and a light collecting optical system for defining an illumination region upon a surface to be illuminated, by use of light from the light transmitting element.

Abstract: Conventionally, concentrated illumination of a central portion of an image (about 40-60% of the whole image) in which information such as letters and a picture tends to concentrate (centrally concentrated illumination) and uniform illumination of the whole image (uniform illumination) can be carried out by using two separate apparatuses, but no single conventional image display apparatus can carry out both of the two types of illumination. Accordingly, an object of the present invention is to provide a liquid crystal display apparatus which can carry out centrally concentrated illumination, uniform illumination, and various other illumination states (illumination distributions). According to the present invention, an image display apparatus (such as a liquid crystal projector) is structured such that a fly-eye lens or a part thereof in an illumination optical system for illuminating an image forming element is moved to vary the illumination distribution on the image forming element.

Abstract: A light fixture includes a housing, a lens, a lens frame, and at least one mounting spring. The mounting spring is mountable to the lens frame and includes a first member configured to retain the lens in the lens frame and a second member configured to attach the lens frame to the housing.

Abstract: A light source for illuminating a display panel comprises a light-emitting device such as an incandescent light bulb or LED array disposed within a cavity having diffusely reflecting walls and an aperture. In one embodiment, a diffuser and brightness enhancing film are situated proximate the opening of the aperture which illuminates the display. Preferably, light emerging from the aperture is substantially uniform in intensity and color, and in one embodiment, a color filter is employed to whiten the light emerging from the aperture. The ratio of the area of the aperture to the sum of such area and the surface area of the cavity is at least 0.05. The sides of the cavity are sloped so as to reduce the sum and increase the ratio.

Abstract: A lamp assembly includes a diffraction grating, such as a CD, CD-ROM, DVD, laserdisc, mini disc or the like, positioned with respect to the light bulb for reflecting light from the bulb to produce a pleasing spectral visual effect.

Abstract: An optical film is provided which comprises an antireflective layer and a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.

Abstract: A flood light includes a lamp that is located at a focus of a reflecting mirror having a reflecting surface whose cross-section is oval and partially arcuate. A concave lens having negative refracting power is disposed between first and second foci about which an elliptical reflecting surface of the reflecting mirror is disposed. Some light rays from the lamp pass directly from the lamp through the lens while other rays from the lamp are reflected by the mirror before passing through the lens. Generally speaking, on the upstream side of the lens, the reflected rays enter the lens outboard of the rays that pass directly from the lamp to the lens. This construction provides a small flood light that has a high optical output, and effectively uses bundles of rays emitted from the lamp to produce a luminous intensity distribution desirable as light for range finding.

Abstract: An electrical plug incorporates a light beam between the prongs of the plug. The light beam is forwardly directed such that the plug can illuminate a socket where the plug is to be inserted. The plug body includes a circuit board having a light, resistor, battery and switch. A first type of switch that is used includes a push button attached to a spring and contact pads mounted on the circuit board, wherein when the button is pressed the spring electrically connects contact pads within the circuit thus closing the circuit and activating the light. A second type of switch that is used incorporates contact pads and a flexible cover having a pair of electrically conductive leaves hingedly attached to its underside. When an exterior surface above the cover is pressed the leaves move upward and electrically connect contact pads within the circuit thereby closing the circuit and activating the light.

Abstract: The reflective surface of a reflector 16 is divided through steps into a plurality of vertically elongated reflective surface elements. In each of those reflective surface elements, the light incidence section to which the output light of a light source bulb is applied is made up a convex cylindrical curved surface and a concave cylindrical curved surface which are arranged substantially in parallel with the step adjacent to the light incidence section. Accordingly, when the lamp is turned on, and the reflector is observed from the front, the light incidence sections function as follows; that is, the apex portions of the cylindrical curves surfaces look glittered as bright sections. Therefore, the reflective surface looks more sparkling.

Abstract: An illumination obscurement device for controlling the obscurement of illumination from a light source which is optimized for use with a rectangular, arrayed, selective reflection device. In a preferred embodiment, a rotatable shutter with three positions is placed between a light source and a DMD. The first position of the shutter is a mask, preferably an out of focus circle. This out of focus circle creates a circular mask and changes any unwanted dim reflection to a circular shape. The second position of the shutter is completely open, allowing substantially all the light to pass. The third position of the shutter is completely closed, blocking substantially all the light from passing. By controlling the penumbra illumination surrounding the desired illumination, DMDs can be used in illumination devices without creating undesirable rectangular penumbras.

Abstract: A light fixture apparatus includes a support frame mounted to the wall and an auxiliary or examination light source coupled to the support frame and movable from a first stored position to a second deployed position. A first switch in series with the auxiliary light source is opened when the auxiliary light is in the stored position and closed when the auxiliary light is in the deployed position. The light source has three degrees of adjustment. The light source is connected to one end of telescopic members which are pivotally connected at its second end to the support to pivot about an axis transverse the telescoping axis. A safety switch is provided adjacent the telescopic members to sense the pivoting.

Abstract: A light fixture having a base for housing a light producing source and a flat plate disposed within the base. The plate has a well formed in it, the well having light reflecting walls. A lamp socket is located in a light reflecting bottom wall of the well. A plurality of light reflecting elements is attached to the plate and a pair of light reflecting assemblies, one on either side of the well, is fixed to the plate. Each light reflecting assembly includes a plurality of light reflecting fins affixed to the plate and projecting at an angle away from the plate. A frame having a convex lens affixed thereto is hingedly attached to the base. A light shield is fixed to the frame for reducing dispersion of unwanted light.

Abstract: An infrared radiation source is provided by directing combustion gases through a honeycomb mantle along the axis of symmetry thereof. The honeycomb mantle is formed of individual tubes disposed at an angle to the axis of symmetry of the mantle and is closed at the end away from the combustion gas input. The mantle may contain a structure to divert the combustion gases therein to aid in uniform heating.

Abstract: An illumination optical system for cutting infrared light by a relief type optical element includes a light source and a relief type diffraction optical element having a rectangular sectional-shaped grating having an equal area of land and groove areas so that primarily zero order light can be used for illumination while higher order and infrared light may be filtered out. A relief pattern has characteristics such that a ratio .beta. of a width of a plurality of respective concave portions to a pitch of adjacent convex portions is in a range of 0.34.ltoreq..beta..ltoreq.0.66 and a groove depth d is in a range of 0.85 d.sub.0 .ltoreq.d.ltoreq.1.09 d.sub.0. Excessive heat from infrared light and higher order light may be eliminated without the use of an infrared cutter.

Abstract: A polarized light source includes a diffuse light source and a reflective polarizing element placed proximate thereto. The reflective polarizing element transmits light of a desired polarization and reflects light of another polarization back into the diffuse source where it is randomized. Some of the initially rejected light is thus converted into the desired polarization and is transmitted through the reflective polarizing element. This process continues, and the repeated reflections and subsequent randomization of light of the undesired polarization increases the amount of light of the desired polarization that is emitted by the polarized light source.

Abstract: The present invention relates to a connecting accessory 10 for fluorescent amps, comprising two lampholders 16 constructed separately from one another and mutually spaced for holding the corresponding connecting ends of the fluorescent lamp 14. In this case, the lampholders 16 are each arranged in a holder receptacle 18. Moreover, the holder receptacles 18 each have an integrated device for the strain relief of electric connecting lines 22 leading to a ballast or coming therefrom.