摘要:
A socketed high pressure gas discharge lamp having a lamp vessel comprising a space sealed by at least one seal. The discharge lamp further comprising a socket in which the lamp vessel is mounted with its seal and fixed with cement. A lamp axis extending through the socket and through the space of the lamp vessel. The socket is provided with at least one opening extending axially through the socket from its base side to its front side. The opening has an annular wall which is either formed only by the socket or by a combination of both the socket and the seal of the lamp vessel. Preferably, the opening is located on either side of the seal.
摘要:
An ultra-high-pressure mercury lamp according to various embodiments is an ultra-high-pressure mercury lamp in which a luminous tube employing a quartz bulb is attached to a neck part of a reflector by injecting first cement, and a metal base is attached to the neck-part end of the luminous tube by injecting second cement, wherein, if a is the outer diameter of the first cement and second cement after injection, b is the total axial depth of the first cement and second cement after injection, and c is the outer diameter of the quartz bulb in the vicinity of the luminous tube where the metal base is attached, the following relationships are satisfied: 1.3
摘要:
Discoloration and deformation of a resin case triggered by heat generation from a failed circuit component at the end of the life of an arc tube are prevented without increasing the cost and size. A lighting unit that lights a light source with an inverter while receiving electric power from an AC power supply, and that contains a lighting circuit that includes a plurality of circuit components inclusive of capacitors. Among the capacitors, all capacitors with an applied voltage of 50V or greater (C4, C5, C6, C7, C8, CD1 and CD2) are foil type film capacitors with exceptions of smoothing electrolytic capacitors (CD1 and CD2).
摘要:
A compact self-ballasted fluorescent lamp includes a double-spiral arc tube and a holder. The holder has a tubular protrusion which is surrounded by the arc tube, at a center of its main surface. A closed end of the protrusion and a part of the arc tube facing the end of the protrusion are bonded together using a silicone adhesive. A part of a vertical printed circuit board that is used as a lighting circuit is housed within the protrusion.
摘要:
The invention relates to a lamp-capping cement for electric lamps that contains poly-paraphenylene-terephthalamide as the thixotropic element. According to the invention, the poly-paraphenylene-terephthalamide is used in lamp-capping elements to adjust viscosity, especially to reduce the fluidity of the cement.
摘要:
A foamable copolymer based coupling is provided for securely affixing a light emitting glass lamp in a metal base to form a lamp assembly. The copolymer is preferably selected from ethylene vinyl acetate, ethylene methyl acrylate, and combinations thereof. The foamable coupling may be placed around one end of the glass lamp or in the lamp base before the lamp and base are matingly engaged. The assembled lamp is then heated to a temperature, which causes the foamable coupling to expand and securely affix the lamp in the base.
摘要:
A foamable copolymer based coupling is provided for securely affixing a light emitting glass lamp in a metal base to form a lamp assembly. The copolymer is preferably selected from ethylene vinyl acetate, ethylene methyl acrylate, and combinations thereof. The foamable coupling may be placed around one end of the glass lamp or in the lamp base before the lamp and base are matingly engaged. The assembled lamp is then heated to a temperature, which causes the foamable coupling to expand and securely affix the lamp in the base.
摘要:
A halogen lamp with reflector which allows a pinch seal portion to be fitted onto a lamp mount portion of a reflector simply by inserting a lamp body with a pinch seal support and a lead rod support into the lamp mount portion, thrashes the cost and prevents an inorganic adhesive from contaminating a concave reflecting section of the reflector, and is suitable for achieving high wattage. An insulating lead rod support (5) is mounted to lead rods (1b), and a pinch seal support (4) is mounted to the pinch seal portion (1a). The lead rod support (5) is inserted into a bottom aperture (3b) of the lamp mount portion (3). The pinch seal support (4) includes an insertion hole (4d) for passing the pinch seal portion (1b) therethrough, pinch seal abutting pieces (4b), reflector abutting pieces (4a), and an opening closing portion (4c) closing the front opening (6). An adhesive (8) is injected into a gap between the pinch seal portion (1b) and the lamp mount portion (3).
摘要:
A capping cement for electric lamps which has a minimal resin content. The capping cement includes both natural and synthetic resins, the content of the synthetic resins amounting to not more than 11 percent by weight and that of the natural resins not more than 5 percent by weight. Calcites are used exclusively as fillers. The weight proportion of natural resin to synthetic resin is advantageously between 0.1 and 0.5.
摘要:
The lamp/reflector unit comprises a reflector (1) having a neck-shaped portion (3) in which a metal centering member (9) is present. The centering member (9) has a transverse wall (10) with an opening (11) in which the seal (6) of an electric lamp (4) is accommodated, secured with cement (12). Recesses (13) extend from the opening (11) into the transverse wall (10). Fracture of the seal (6) is thus prevented.