Abstract:
A serpentine tube used in the manufacture of a fluorescent lamp is coated with a reflective or phosphor material. A magnetic material and coating material slurry is placed within one end of a serpentine glass tube. A magnet is placed adjacent the magnetic material and coating material slurry and is moved in a path conforming to the shape of the serpentine tube. The magnet causes the magnetic material and coating material slurry to travel along therewith, coating a portion of the interior surface of the serpentine tube with a reflective, phosphor, or other material. In another embodiment of the invention, abrasive magnetic material is placed within the serpentine lamp for removing a previously coated material resulting in an aperture being formed. The present invention is particularly suited to the manufacture of serpentine fluorescent lamps that are used to illuminate flat panel displays.
Abstract:
The present invention relates to an external electrode fluorescent lamp which can provide higher degree of and more improved uniformity of brightness than those of conventional ones, and to a LCD back light unit using the external electrode fluorescent lamp. The present invention also relates to an equipment and a driving device to adapt the LCD back light unit. The external electrode fluorescent lamp of the present invention is comprising: an upper panel of lamp which is serpentine shaped; a lower panel which is planar shaped and to be combined with the upper panel to make channels between the upper panel and the low panel; and external electrodes which are located at the two extreme sides at the surface of the upper panel.
Abstract:
A fluorescent lamp 1 comprises: a bulb 2 formed by heating bent-portion-formation preordination portions of a single straight-tube-shaped bulb 2a having an external tube diameter of 12 to 20 mm and a tube length of 800 to 2500 mm, forming a plurality of bent portions 2c and straight tube portions 2b adjacent to the bent portions 2c by bending processing, such that the straight portions 2b are disposed generally within the same plane by way of the bent portions 2c, forming in close proximity a pair of end portions 2d and 2d with electrodes 5 and 5 sealed in so as to form a single discharge path through the straight tube portions 2b and bent portions 2c, forming a phosphor layer 4 on the inner face of the bulb, and sealing a discharge medium including mercury; and a base 6 provided on the end portions 2d and 2d of the bulb 2; whereby thermal deterioration of the phosphor layer 4 formed at the straight tube portions 2b is reduced so deterioration of the initial light flux is suppressed, allowing lighting at higher efficiency. According to the above configuration, a fluorescent lamp which is compact and capable of light with high efficiency, and with improved light output properties, and a light fixture using this fluorescent lamp, can be provided.
Abstract:
A method of manufacturing a surface emitting fluorescent lamp, designed to reduce a total thickness of the surface emitting fluorescent lamp, and to allow easy sealing of a gas injection port. The method comprises forming at least one injection port connected to one side of a discharge channel in a horizontal direction of the fluorescent lamp to communicate with the discharge channel simultaneous with forming a discharge space, providing a sealant within the gas injection port in order to seal the gas injection port, providing a mercury pellet containing mercury to one side of the sealant, vacuum exhausting the discharge space of the fluorescent lamp, diffusing inert gas into the discharge space, and diffusing mercury vapor evaporated from the mercury pellet into the discharge space. Then, the sealant is melted, and seals a connection between the gas injection port and the discharge channel.
Abstract:
Illumination devices. An illumination device includes a body and a plurality of protrusions. The body comprises a plurality of curved passages and a plurality of intermediate walls. The curved passages are separated by the intermediate walls and interconnected and transversely arranged in parallel. The protrusions are disposed in the curved passages.
Abstract:
A device for generating light capable of uniformly distributing discharge gases in discharge areas, as well as preventing charge drift. The device includes a first substrate, a second substrate assembled with the first substrate to form a discharge space between the first and second substrates. The second substrate includes at least one sinking portion extending toward the first substrate to divide the discharge space into at least two discharge areas, and at least one connection passage is formed on the first substrate to connect the discharge areas to each other.
Abstract:
An external electrode fluorescent lamp includes an upper panel of lamp which is serpentine shaped, a lower panel which is planar shaped and to be combined with the upper panel to make channels between the upper panel and the lower panel; and external electrodes which are located at the two extreme sides of the surface of the upper panel.
Abstract:
A spiral-shaped lamp (10) is used for disk manufacturing processes, such as curing of coating or bonding, to provide uniform intensity of UV energy to the circular disk without requiring relative motion between the disk and the lamp during the curing process.
Abstract:
A flat form gas discharge lamp for illuminating a defined area includes a plurality of adjacent spaced apart substantially parallel channels extending across the defined area. The first channels are substantially co-planar with one another, and a plurality of second channels interconnecting end portions of respective pairs of the first channels to form a single confined region such that the first channels confine an ionizable medium for producing light under influence of an electric discharge. The second channels are substantially co-planar with one another while not being co-planar with the first channels.