Abstract:
A CRT socket has a partition wall for partitioning a focus contact storing chamber and a base insertion hole which has sufficient strength, while maintaining a creepage distance between a focus contact and a signal contact sufficient to avoid arcing. The focus contact is formed in a leaf shape. A partition wall on a side of the base portion is interposed utilizing a gap in which a pin-type focus contact is interposed between a base and a focus pin in a cathode ray tube. The outside face of a projecting portion is covered with the partition wall. Increased strength is obtained in the partition wall for partitioning the focus contact storing chamber and the base insertion hole. The creepage distance between the focus contact and the signal contact is lengthened by forcing charges to travel, not only over the surfaces, but also along overlapping surfaces.
Abstract:
A lamp (24), a series of lamps as well as a method of manufacturing lamps, in particular lamps for automotive headlights, are described. Said lamps (24) comprise a burner (26) for generating light, which burner is held in position in an upper base part (12). Said upper part (12) of the base also comprises reference elements, for example a securing ring (16), for positioning the lamp at a headlight. In addition, a lower base part (14) comprising a connection device for electrical contacts is provided. The lower base (14) part and the upper base part (12) are at least partly made of plastics and are connected together by means of welding or bonding using an adhesive. In a series of lamps, all lamps of said series comprise identical burners (26) and identical upper base parts (12), while different types of lower base parts (14) are available. In the manufacturing process, the burners (26) are first inserted into the upper base part (12) and, preferably, after having been oriented with respect to the reference element (16), fixed in position. Next, lower base parts (14) including the electrical connection device having the desired shape are connected with the upper base parts (12). Further modifications relate to a two-piece embodiment of the lower base part (14), enabling electrical contact elements to be readily accommodated, and to the manufacture of the upper base part and the lower base part from different plastics.
Abstract:
A lamp system with a reflector includes a high pressure discharge lamp and a reflector. The reflector has a first opening located in a forward position of the reflector with respect to a light-emission direction and a second opening into which a sealing portion is inserted. The sealing portion has a first glass portion extending from a luminous bulb and a second glass portion provided in at least a portion inside the first glass portion, and the sealing portion has a portion to which a compressive stress is applied. When the sealing portion is disposed in a substantially horizontal direction, a microcavity is formed in at least a lower portion of the luminous bulb.
Abstract:
A mounting member (50, 50null, 50null, 50nullnull) for an arc tube/shroud combination comprises an annulus (52). The annulus (52) has at least one mounting tab (54) depending from an outer edge thereof and two spaced apart arc tube-pinch seal-engaging ribs (56, 58) spanning the diameter of the annulus for frictionally engaging the pinch seals. Holding tabs (62) depending from the annulus mount the annulus to a shroud. In a preferred embodiment the ribs (56, 58) have upstanding projections (60) that engage the pinch seals and provide the friction fit necessary for holding the pinch seals.
Abstract:
The invention relates to a lamp base having fastening means for a lamp vessel, having a base part that consists of an electrically insulating material and that is equipped with at least two first electric contacts that serve the power supply of at least one luminous means, wherein said base part has at least two second electric contacts, in each case one of said second electric contacts being connected in an electrically conducting fashion to in each case one of said first electric contacts.
Abstract:
An assembly (10) for a lamp. The assembly 10 includes a light source (12) having a center chamber (14) and opposite ends (16, 18), arrayed along a longitudinal axis (19). The ends (16, 18) are cylindrical in cross-section. A tubular shroud (20) surrounds the light source (12) and is coaxial with the longitudinal axis (19). The light source (12) is mounted within the shroud (20) by spring clips (26) one of which is mounted at either end of the shroud. The spring clips each include a base (28) lying in a first plane and having an aperture (30), for example, a star-shaped aperture, centrally located in the base. The apertures (30) in the two spring clips frictionally engage one of the ends (16, 18) of the light source (12). Each of the spring clips (26) has a U-shaped projection (32) at and end (33) of the base (26). The U-shaped projection comprises first and second upstanding walls (34, 36) joined by a first lip (38) that extends in a second plane and is fitted over the wall of the shroud (20). One of the upstanding walls of the U-shaped projection, for example, wall (36), is formed to provide spring tension for grasping the shroud wall.
Abstract:
A lamp assembly has one or more lamps (8, 9), particularly LED lamps, with terminals (11) attached to a circuit board (10) so as to be supported by the board. The lamp terminals (11) are connected via conductive pathways (12) to edge contacts (A1, A2, A3, B1, B2, B3) on the board which can be inserted into a lamp holder (1) so that the board (10) is supported by the lamp holder (1) and the edge contacts (A1-3, B1-3) conductively engage electrical contacts (5) in the lamp holder (1). The lamp terminals (11) are attached to positions (13) on the pathways (12) on opposite sides of the board (10) so that the lamp (8, 9) straddles the board, preferably symmetrically. Where there are two or more lamps (8, 9) these are connected to different combinations of pathways (12) and edge contacts (A1-3, B1-3) so that they can be operated independently.
Abstract:
A fluorescent lamp includes a glass envelope having a sealed end portion, a base shell member of a cup-shape configuration adapted to engage the envelope end portion, and a collar of shrink wrap material disposed around the envelope end portion and sides of the base shell member, the shrink wrap material being shrunken and compressing against the envelope end portion and the base shell member, to fix the base shell member on the envelope end portion.
Abstract:
A lamp assembly (10) includes a body (12) having a concave reflecting surface (16) that opens toward a first or open end (18) and a neck (22) at a second end includes an opening (24). A light source (30) is received in the body adjacent the reflecting surface and has a seal or pinch region (44) which extends into the neck. A mounting clip (80) includes a plate (82) that engages the outer surface of the neck. First and second legs (84, 86) of the mounting clip engage the pinch region via teeth (88), while arms (90, 92) engage an internal surface (94) of the neck.
Abstract:
Compact low-pressure discharge lamp The invention relates to a compact low-pressure discharge lamp (1) comprising a discharge vessel (3) with electrodes and power supply leads (7), a discharge vessel mount (5) and a cap (12) which comprises a housing (13), connecting contacts (14) and a mounting plate (15) with a ballast apparatus (16), with the mounting plate (15) being fitted with the ballast arrangement (16) in the interior of the cap housing (13), and having connections for electrical connection of the mounting plate (15) to the power supply leads (7) and to the connecting contacts (14). The discharge vessel mount (5) has an essentially H-shaped cross section and comprises a plate (4) with collars (9, 18) running on the edge of each side of the plate. Both the housing (13) of the cap (12) and the cover part, which is in the form of an enveloping bulb (2), a reflector or a closure cap, are mounted on this H-shaped discharge vessel mount (5).