Abstract:
The invention relates to a gas-and/or vapor discharge lamp which is provided with a discharge tube and with a heat shield.The heat shield is connected to a bimetal element of the lamp such that, when the temperature of the discharge tube is raised (or lowered) the heat shield is further removed from (or moved towards) the discharge tube. Accordingly the lamp reaches its operating condition rapidly after starting and in the operating condition fluctuations in the temperature are very small.
Abstract:
본 발명은 면광원 백라이트 및 그 제조방법에 관한 것으로, 본 발명에 따른 면광원 백라이트는 전면에 일정 간격을 두고 폭방향을 따라 다수개의 볼록부가 형성되고 상기 다수개의 볼록부가 상하로 대향되게 결합되는 상판과 하판; 상기 상하로 대향되게 결합되는 상판과 하판사이에 형성되는 공간부에 충진되는 형광체; 및 상기 상판과 하판의 적어도 하나의 양측단에 배치되는 제1공통전극과 제2공통전극;을 포함하여 구성되며, 상판과 하판 각각에 다수의 볼록부를 형성하여 이들이 상하 대칭으로 상하면 백라이트로사용이 가능하며, 볼록부의 형상으로 인해 집광 기능을 갖게 되므로써 고휘도가 가능한 것이다. 면광원, 백라이트, 볼록부, 제1전극, 제2전극, 형광체
Abstract:
Die Erfindung betrifft eine Gasentladungslampe mit: einem Außenrohr (2; 102); einem Innenzylinder (7; 107), wobei der Innenzylinder (7; 107) innerhalb des Außenrohrs (2; 102) angeordnet ist, sodass ein Gasentladungsraum (15; 115) zwischen dem Außenrohr (2; 102) und dem Innenzylinder (7; 107) entsteht; und einem Gas, das bei Anlegen eines elektrischen Stromes auf Grundlage einer Gasentladung Licht erzeugt, wobei das Gas in den Gasentladungsraum (15; 115) eingefüllt ist, sodass die Gasentladung in dem Gasentladungsraum (15, 115) stattfindet.
Abstract:
The invention relates to a high pressure discharge lamp (10) and a vehicle headlight (100) comprising the high pressure discharge lamp. The high pressure discharge lamp according to the invention comprises a discharge vessel (12) comprising electrodes (16, 18) for creating a discharge arc (20) and for defining a longitudinal axis (30) connecting the electrodes. The discharge arc is displaced with respect to the longitudinal axis at a distance on a displacement axis (32) arranged perpendicular to the longitudinal axis. The high pressure discharge lamp further comprises a reflective surface (40; 42; 44; 46; 50; 52) for reflecting light emitted by a discharge arc towards a light-transmission window (60; 62) of the discharge vessel while substantially preventing the reflected light to pass through the discharge arc. The effect of the measures according to the invention is that the reflective surface is arranged to redirect the reflected light away from the discharge arc towards the light-transmission window, thus improving an efficiency of the high pressure discharge lamp.
Abstract:
Disclosed are cathode units for use in fluorescent discharge lamps which include a stem element adapted for sealing engagement with an end of an elongated vitreous/glass tube, first and second electrode support wires extending axially through the stem element, and a filament electrode which is oriented substantially axially with respect to the support wires. The support wires each have a inwardly-directed tip portion and the filament electrode is attached thereto. The ends of the filament electrode are attached to the support wires by welding. In alternative embodiments, the disclosed cathode unit can further include an electrode shield assembly.
Abstract:
The subject of the present invention relates to a high efficiently dielectric barrier discharge (DBD) -lamp for generating and/or emitting a radiation of ultraviolet (UV) -light comprising: a discharge gap (1) being at least partly formed and/or surrounded by at least an inner wall (2) and an at least partly transparent outer wall (3), each with an inner surface (2a, 3a), facing the discharge gap (1) and an outer surface (2b, 3b) arranged opposite of and directed away from the corresponding inner surface (2a, 3a), a filling located inside the discharge gap (1), at least two electrical contacting means (4), a first electrical contacting means (4a) at the inner wall (2) and a second electrical contacting means (4b) at the outer wall (3), and at least one luminescent coating layer (5) arranged at/on and at least partly covering at least a part of the respective wall's inner surface (3a), arranged such, that at least a part of the generated UV-light of a certain wavelength range can pass the luminescent coating layer (5) from the discharge gap (1) to the outside of the DBD-lamp, whereby at least one of both walls (2, 3) is at least partly arranged with directing means (6), so that the diffusive radiation is directed in direction through the transparent part of the outer wall (3) with reduced losses due to absorption effects and the like.