摘要:
A discharge lamp manufacturing method that provides control of the introduction of a predetermined amount of halogen, unaccompanied by carbon or hydrogen, into a discharge vessel of the lamp so that a discharge lamp having an adequate operating pressure and that can maintain enhanced lighting conditions over a long period can be achieved. In particular, a halogen-introduction carrier (25) is used in the manufacture of the discharge lamp for introducing a predetermined amount of metal halide. The discharge lamp manufacturing method includes a device for introducing halogen into the discharge vessel and includes heating a halogen-introduction carrier (25) composed of a porous body containing metal halides.
摘要:
To eliminate the disadvantage that the lamp current becomes large in a light source device with a discharge lamp with high radiance in a lamp with a low saturation lamp voltage, in a light source device having a discharge lamp with a pair of opposed electrodes connected to a feed device which starts the discharge lamp and which is used to supply the discharge current to the electrodes, the feed device is made to control the current feed such that the current flowing in the discharge lamp does not exceed a given current boundary value, such that, during the interval immediately after starting of the discharge lamp until sufficient heating of the discharge lamp is achieved, the current boundary value is a first boundary value, and that, after the interval expires, the current boundary value is changed to a second boundary value that is smaller than the first boundary value.
摘要:
A ceramic lamp in which the hermetically sealing bodies of electrically conductive cermet are sealed to hermetically sealed tube portions of the lamp vessel with a sealing material is arranged and provided with material components designed to give the hermetically sealing portions a high reliability. In particular, a lamp of a translucent ceramic has a lamp vessel which has a bulb portion and hermetically sealed tube portions which are connected to the bulb portion, and electrically conductive supply components in the bulb portion which have base parts inserted into the hermetically sealed bodies of electrically conductive cermet, is improved by seal welding of the hermetically sealing bodies of electrically conductive cermet on the hermetically sealed tube portion with a sealing material so that a hermetically sealed arrangement is produced in which, in the border area between the sealing material and the hermetically sealing body, an intermediate layer is formed in which components of the electrically conductive cermet of the hermetically sealing body are intermixed with components of the sealing materials.
摘要:
To eliminate the disadvantage that the lamp current becomes large in a light source device with a discharge lamp with high radiance in a lamp with a low saturation lamp voltage, in a light source device having a discharge lamp with a pair of opposed electrodes connected to a feed device which starts the discharge lamp and which is used to supply the discharge current to the electrodes, the feed device is made to control the current feed such that the current flowing in the discharge lamp does not exceed a given current boundary value, such that, during the interval immediately after starting of the discharge lamp until sufficient heating of the discharge lamp is achieved, the current boundary value is a first boundary value, and that, after the interval expires, the current boundary value is changed to a second boundary value that is smaller than the first boundary value.
摘要:
To provide a lamp seal that avoids cracking of the functionally gradient material in the manufacturing process, that assures adequate mechanical strength of the finished product, and that has improved productivity because of the ease of welding when the light-emitting tube of the lamp is sealed, the lamp seal (20) comprising a functionally gradient material (21) and a lead bar (11), in which the functionally gradient material (21) has layers of mixtures of electrically non-conductive material and conductive material such that one end is non-conductive and the other end is conductive, with layers such that the proportion of conductive material increases in stages or continually moving from one end to the other, in which the lead bar (11) passes through a hole formed in the direction of layering of the functionally gradient material and is attached in the conductive region of the functionally gradient material (21), has the proportion of conductive material at the point of attachment (26) of the lead bar (11) to the functionally gradient material set at no less than 0.6 Vol% and no more than 39 Vol%. Furthermore, a gap(24) is created between the lead bar (11) and the functionally gradient material (21) in the region from the point of attachment (26) to the non-conductive end of the functionally gradient material (21).
摘要:
A cermet which contains an aluminum oxide component, a silicon dioxide component, a component for modifying the coefficient of linear expansion which is formed of a metal oxide other than aluminum oxide and silicon dioxide, and a metal component with a smaller coefficient of linear expansion than aluminum oxide. A ceramic discharge lamp which has a discharge vessel (10) with an arc tube part (11) and hermetically sealed tube parts (12), in which furthermore in the arc tube part there are a pair of discharge electrodes (21) opposite one another, and in which a hermetically sealed arrangement is obtained by fritting-welding of hermetically sealing components (24) with the hermetically sealed tube parts, in the hermetically sealed components the base parts of the upholding parts (22) of the electrodes being inserted, on the tips of which the discharge electrodes are located, and in which the hermetically sealing components are formed of the above described cermet.
摘要:
A cermet which contains an aluminum oxide component, a silicon dioxide component, a component for modifying the coefficient of linear expansion which is formed of a metal oxide other than aluminum oxide and silicon dioxide, and a metal component with a smaller coefficient of linear expansion than aluminum oxide. A ceramic discharge lamp which has a discharge vessel with an arc tube part and hermetically sealed tube parts, in which furthermore in the arc tube part there are a pair of discharge electrodes opposite one another, and in which a hermetically sealed arrangement is obtained by fritting-welding of hermetically sealing components with the hermetically sealed tube parts, in the hermetically sealed components the base parts of the upholding parts of the electrodes being inserted, on the tips of which the discharge electrodes are located, and in which the hermetically sealing components are formed of the above described cermet.