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Patent Searching and Data


Matches 651 - 700 out of 11,199

Document Document Title
WO/2000/002231A1
The electric lamp comprises a lamp vessel (1) which is transparent to visible light, and which lamp vessel accommodates a light source. The lamp vessel (1) is covered with an optical interference film (5; 5') which includes layers of alt...  
WO/1999/067810A1
The electric lamp is provided with a cap (3) having a metal shell (8). The shell (8) comprises a cylindrical part (44) which is coupled to a conical part (42) via a rounding (43). By choosing the angle $g(b) between the second part (52) ...  
WO/1999/060604A1
An incandescent filament (10) having a primary coil (12) without any mandrel is held in clamps (22) formed on the ends of lead wires (20) having opposed first (24) and second surfaces (30) with flat sections (20), the flat section of the...  
WO/1999/053526A1
Thin film interference filter consists of alternating first and second layers, the first layers being silica, the second layers being a mixture of tantala and niobia. The filter may be used on a high temperature lamp in an inert atmosphe...  
WO/1999/052128A1
The electric lamp comprises a lamp vessel (1) and a cap (10) having integrally a housing (11) and an intermediate spring part (15) with connecting means (17) on it. The cap (10) is supplied with means for contacting (14) and referencing ...  
WO/1999/049498A1
The lamp comprises a sealed lamp vessel (1) having a wall (2) which lamp vessel encloses an electric element (3). Current feedthroughs (5), embedded in the wall (2), are connected via internal current leads (4) to the electric element (3...  
WO/1999/048125A1
A novel composition comprising organic polymer molecules having carbon-carbon double bonds, for removing hydrogen from the atmosphere within enclosed spaces. Organic polymers molecules containing carbon-carbon double bonds throughout the...  
WO/1999/036807A1
A curved surface element, for example a light bulb (16), ornament, or light pipe, has at least a portion thereof on its inner or outer surface (20) covered with a diffraction grating, for example, a holographic diffraction grating or mec...  
WO/1999/028949A1
The invention relates to an electric lamp, comprising a base (3) having at least two V-shaped fixing plates (5; 6) with a first (5a; 6a) and a second elastic V-shaped limb (5b; 6b). The ends of the first V-shaped limb (5a; 6a) are formed...  
WO/1999/028996A1
An improved electrically conductive light bulb base for use with common threaded light bulb sockets currently widely used. The improvement combines a substantial reduction in the amount of thread required, by employing a shorter thread t...  
WO/1999/027297A1
A lighting system (10) for projecting a beam of light has a light source (14) and a concave reflector (12) having a central axis. The center of the light source (14) is located at a position other than at the focal point of the reflector...  
WO/1999/025002A1
A device and method are described which facilitate removal of an electric illuminating device such as a light bulb from a socket. According to the invention, a thin layer of electrically conductive material is applied to the contact surf...  
WO/1999/022551A1
The invention begins with a known infra red spheroidal radiation emitter, comprising an enveloping cone surrounding a radiation source provided with electric connections, and seeks to provide an improvement in relation to low thermal ine...  
WO/1999/018598A1
The electric lamp has a quartz glass lamp vessel (1) having first and second neck-shaped portions (2, 3) with first and second seals (4, 5). Current supply conductors (6, 7, 8; 10, 11) extend each through a respective seal. They consist ...  
WO/1999/013493A1
An electricity introducing member for vessels comprising a closing member and an electrode core formed integrally together, wherein: a plurality of layers each comprising a conductive component and silica, the volumetric proportion of th...  
WO/1999/012187A1
The invention relates to an incandescent lamp with a low voltage burner (BM) and integrated voltage conversion means (VCM). Control signals to drive the switching elements (Q1, Q2) comprised in the voltage conversion means are generated ...  
WO/1999/001913A1
The invention relates to a miniature filament lamp for mounting on a printed circuit board. According to the invention the base contacts (7) have an even contact surface (7a) designed to be soldered onto a printed circuit board, a pincer...  
WO/1999/002013A1
An infrared radiation lamp that includes an electrically heated filament and a reflector. The invention is characterised in that the filament (1) is comprised of a high temperature element that is wound to a helical configuration (2), su...  
WO/1998/056031A1
A yellow bug lamp whose coating is cadmium-free. The coating comprises sulfate precipitated silica, aluminum silicate pigment, zirconium praseodymiun yellow zircon and nickel titanium yellow rutile and has color coordinates of x = 0.5341...  
WO/1998/052210A1
Getter devices for halogen lamps are formed by screen-printing a paste comprising tantalum, thorium, hafnium, platinum, niobium or zirconium, and preferably zirconium and tantalum, in strips onto a metallic foil and then cutting the stri...  
WO/1998/050943A1
The capped electric lamp has a glass bulb (1) having an opening (3) which is sealed with an insulator plate (4). The lamp cap (20) has a circumferential wall (22) which seizes about a circumferential rim (7) of the plate (4) and presses ...  
WO/1998/050942A1
The electric incandescent lamp has a sintered glass plate (1) through which current conductors (2) and a metal tube (3) extend. An incandescent body (4) is connected to said current conductors (2) aligned with respect to the plate (1). A...  
WO/1998/049716A1
A lamp capsule for use in a vehicle headlamp includes a lamp envelope having a tubular portion. First and second spaced-apart filaments are mounted in the lamp envelope for emitting light when energized by electrical energy. The lamp cap...  
WO/1998/049717A1
A lamp capsule for use in a vehicle headlamp includes a lamp envelope having a tubular portion. First and second spaced-apart filaments are mounted in the lamp envelope for emitting light when energized by electrical energy. The lamp cap...  
WO/1998/048448A1
The invention concerns the attachment of coiled filaments to supply leads in electric lamps. One end (41) of the supply lead is flattened and U-shaped. The U-shaped section (41) of the supply lead forms a slot-shaped receptacle (45) for ...  
WO/1998/043281A1
An incandescent microcavity lightsource (30) has an incandescent active region (13) capable of spontaneous light emission when heated. The incandescent microcavity lightsource (30) controls the spontaneous light emissions from said activ...  
WO/1998/040936A1
The invention relates to a system comprising a halogen lamp and an appropriate socket. By using a high voltage or a medium voltage halogen lamp with a simple glass base and by holding it against the socket, considerable economic and ecol...  
WO/1998/038670A1
The invention relates to a method for manufacturing an electric light bulb containing at least one spiral-wound filament (31) and a dimmer cap (20). According to the invention, one end (31a) of a spiral-wound filament (31) is threaded in...  
WO/1998/032156A1
The electric incandescent lamp has a tubular quartz glass lamp vessel (1) in which a filament (10) is axially disposed. The filament (10) is kept centered in the lamp vessel (1) by supports (15) which are connected to the filament (10) i...  
WO/1998/032158A1
An electric filament incandescent in lamp, in particular a halogen incandescent lamp (9) with a rotationally symmetrical lamp bulb (10) and I.R. radiation reflecting coating (14), has an ellipsoidal partial contour. The ellipsoidal parti...  
WO/1998/032157A1
An electric incandescent lamp, in particular a halogen incandescent lamp (9) with a rotationally symmetrical lamp bulb (10) and an I.R. radiation reflecting coating (14), has an ellipsoidal partial contour. The ellipsoidal partial contou...  
WO/1998/027567A1
An electric lamp, in particular a motor vehicle headlight lamp, has a base with a ring-shaped, metallic supporting bush (53) and at least one compression spring (1) for securing the lamp in its socket. The at least one compression spring...  
WO/1998/025700A1
A light-transmitting cover (9) is so provided as to cover a high voltage sodium lamp (11) which emits at least visible light and light whose wavelength ranges 300 nm - 400 nm. A photocatalyst film (13) is so formed at least on one of the...  
WO/1998/025296A1
The electric lamp has an information-displaying external coating (3) which is provided on the lamp envelope. The coating (3) comprises a metal oxide as the pigment, which is dispersed in a polysiloxane matrix which may contain lithium. T...  
WO/1998/023897A1
An optical interference coating on a refractory substrate (1), wherein the coating includes alternating layers (4, 5, 6) of silicon dioxide and zirconium oxide. The coating may be in form of an optical filter where the substrate bearing ...  
WO/1998/020520A1
The present invention relates to a light source which includes two individual light elements, wherein the light elements are configured to be operated independently from any other elements incorporated into the light source. Provision is...  
WO/1998/018736A1
The present invention pertains to a method for manufacturing substrates with transparent and colour coatings stable at high temperatures and in the presence of ultraviolet rays, characterized in that they cover a substrate made of a comp...  
WO/1998/014733A1
A light bulb device where an envelope (1) is constituted by a globe (11) and a base (12). In the envelope an attachment (3) having a bulb mounting portion (32) and a supporting body erecting portion (33) is disposed. A baseless small bul...  
WO/1998/011597A1
The invention concerns a lamp which has a plug-in base (2) with contact elements (3), which are mounted in a holder (26) and a luminescent tube (4) lodged in the base (2), which has a tungsten filament (7). It also has a quartz glass jac...  
WO/1998/005055A1
A light emitting device (1) has a tubular light emitting element (11) and a pair of bases (14) provided on both the ends of the tubular light emitting element (11). A contactor (24) which is electrically connected to the tubular light em...  
WO/1998/000854A1
The electric lamp includes a skirt (17, 40) including a plastic skirt portion (17) and a metallic skirt portion (40) having one end portion (43) molded in said plastic skirt portion (17) and a second end portion (41) secured to the lamp ...  
WO/1998/000883A1
The invention relates to a small filament lamp for insertion into a circuit-board (1) opening (3) which takes the form of a holder for a small filament lamp and is co-ordinated with the base of the small filament lamp. The base (2) consi...  
WO/1997/049117A1
A screening device, in particular a low beam shield or screen, is disclosed for screening the luminescent body of a motor vehicle headlamp. The screening device (1) consists of a sheet metal part and has a welding lug (3) shaped at the e...  
WO/1997/047027A2
The electric incandescent lamp has a lamp vessel (1) in which a filament (3) is disposed substantially concentric with the longitudinal axis (2) of the lamp vessel (1). Current conductors (4) extend from the lamp vessel (1), an internal ...  
WO/1997/040521A1
An electric lamp, in particular for motor vehicles, has a base with a connection area (14) made of an electrically insulating material and provided with the electric connections (15) of the lamp. The feeding lines (11) that lead out of t...  
WO/1997/040511A1
In a reflector lamp, which has a cap (48) with thickened contact pins (51), the cap is constructed as an integral part of the reflector neck (46).  
WO/1997/040520A1
A light outputting device comprises: a containment (14) for housing an element for emitting light (11); at least one axially extending light conducting element (13) having an axial length substantially greater than its width transverse t...  
WO/1997/037369A1
A light source (1) comprising a tubular body (2), bases (3) at both ends, and electrode pins (27) projecting from the bases (3) perpendicularly to the axis of the tubular body (2). A socket (31) comprising a socket body (32), which is pr...  
WO/1997/032331A1
A lamp (600) for producing a spectral light distribution which is substantially identical in uniformity to the spectral light distribution of a desired daylight throughout the entire visible light spectrum from about 380 to about 780 nan...  
WO/1997/032338A1
A subminiature incandescent lamp has a substantially cylindrical base (24) to which a glass envelope (22) enclosing the interior of the lamp is sealed. A pair of contact wires (26) or pins are made of a metal alloy that has substantially...  

Matches 651 - 700 out of 11,199