JP2005527935A5

JP2005527935A5 -

Info

Publication number: JP2005527935A5
Application number: JP2003533313A
Authority: JP
Filing date: 2002-01-28
Publication date: 2005-12-22

Claims

(A) is composed of single crystal sapphire tubing, has an anti-breaking pressure of at least 4,500 psi at 1,400 ° C. and a tensile strength of up to 56,000 psi at 1,400 ° C., and is substantially cylindrical; An arc tube having an inner diameter between 1 mm and 25 mm and an outer diameter of at least 2 mm;
(B) a plurality of end plugs including one of polycrystalline alumina and single crystal sapphire, provided at the opposite end of the arc tube;
(C) first and second electrodes extending through the end plug and provided at least partially within the arc tube;
(D) a seal that seals each end plug to an inner wall of a corresponding end of the arc tube;
(E) A voltage is applied to the first and second electrodes to generate an arc plasma, the voltage is provided by a power supply operating in a continuous non-flash mode, the arc plasma being 4,000 A filler provided in the arc tube that emits visible light from 400 nm to 700 nm with a color temperature of from ° K to 9,000 ° K;
A high-intensity lamp.

The lamp of claim 1, wherein the filler comprises at least one of mercury and xenon.

The lamp of claim 1 wherein the tubing results from proper conversion of polycrystalline alumina and has no fine undulations on the surface.

The lamp of claim 1 wherein the end plug comprises polycrystalline alumina and the seal comprises glass doped with one of titanium and tungsten.

2. The lamp of claim 1, wherein the end plug includes single crystal sapphire, the long axis of the end plug is a C axis, and the C axis is parallel to the C axis of the arc tube.

The lamp of claim 1, wherein the end plug includes single crystal sapphire, and a clearance distance between the end plug and the arc tube is less than 0.2 mm.

The surface of the end plug is coated with a sealing material consisting of an alumina-silicate layer having at least one nanostructure, the alumina-silicate having a mixture of between 1% and 5% titanium dioxide. The lamp of claim 1.

2. The lamp of claim 1 wherein the sealing region is between the arc tube and each end plug and is sintered between 1,700 ° C. and 2,000 ° C.

2. The lamp of claim 1, wherein the end plug comprises single crystal sapphire and has corresponding integral holes for insertion of the first and second electrodes.

The holes are prepared in stages, each hole having a first portion and a second portion, the first portion facing the inner surface of the arc tube, the second portion facing the outer surface of the arc tube, The lamp of claim 9, wherein the first portion has a smaller diameter than the second portion.

10. The lamp of claim 9, wherein the holes are created using a drilling process comprising a 147 nm or less standard laser.

Each of the first and second electrodes has an electrode stem and an electrode base, the stem is inserted into the arc tube through the first portion of the hole, and the electrode base is fitted into the second portion of the hole. The lamp of claim 10.

The lamp of claim 1 wherein the operating temperature of the seal is between 600 ° C and 1,400 ° C.

2. The lamp of claim 1, wherein the inner diameter of the arc tube is between 1 mm and 2 mm, and the Grasshof number is less than 1,400.

3. The lamp of claim 2, wherein the filler has a mercury density between 20 mg / cm and 600 mg / cm and the xenon pressure is between 0.6 and 10 atmospheres.

The lamp of claim 1 wherein the operating pressure of the lamp is between 20 and 600 atmospheres.

The correlated color temperature is determined as a function of the type of additive used in the filler, the type of additive corresponding to the particular application of the arc tube, and the correlated color temperature is maintained for the lifetime of the lamp The lamp of claim 1.

The lamp of claim 1, wherein the filler is a mercury-free filler.

The lamp of claim 18, wherein the filler comprises at least one of a scanion and a rare earth halide.

The lamp of claim 1 wherein the luminous sensitivity of the lamp exceeds 60 lumens per watt.

The lamp of claim 1, wherein the first and second electrodes are separated by a predetermined distance, the distance being less than 2 mm.

The lamp of claim 1 in which the total radiant flux of the light emitting tube is characterized in that the 100 watt / cm ² is 150 watts / cm ^2.

Each of the end plugs includes a single crystal sapphire tube, the tube being created by an edge forming crystallization process that provides an integral hole for insertion of the first and second electrodes. The lamp of claim 9.

The lamp of claim 1 wherein the power supply operates in a voltage range between 0.1 and 600 volts, and a current range of 2 to 150 amps.

2. The lamp according to claim 1, wherein the power supply device is a direct current power supply device.

The lamp according to claim 1, wherein the power supply device is an AC power supply device.

2. The lamp of claim 1, wherein the power supply operates at a frequency in the range of 16 to 1,000 cycles or more per second.

(A) is composed of single crystal sapphire tubing, has an anti-breaking pressure of at least 4,500 psi at 1,400 ° C. and a tensile strength of up to 56,000 psi at 1,400 ° C., and is substantially cylindrical; An arc tube having an inner diameter between 1 mm and 25 mm and an outer diameter of at least 2 mm;
(B) a plurality of end plugs including one of polycrystalline alumina and single crystal sapphire, provided at the opposite end of the arc tube;
(C) first and second electrodes extending through the end plug and provided at least partially within the arc tube;
(D) a seal that seals each end plug to an inner wall of a corresponding end of the arc tube;
(E) A voltage is applied to the first and second electrodes to generate an arc plasma, the voltage is provided by a power supply operating in a continuous non-flash mode, and the lamp operates at a specific standard. An arc plasma emits in the ultraviolet region of the radiation spectrum from 200 nm to 400 nm, and a filler provided in the arc tube,
A high-intensity lamp.

29. The lamp of claim 28, wherein the filler comprises at least one of mercury and xenon.

29. The lamp of claim 28, wherein the tubing results from proper conversion of the polycrystalline alumina and has no fine undulations on the surface.

29. The lamp of claim 28, wherein the filler comprises xenon and hydrogen.

29. The lamp of claim 28, wherein the particular standard of lamp operation is in the temperature range of 9,000 [deg.] K to 15,000 [deg.] K.

29. The lamp of claim 28, wherein the particular standard of lamp operation is in the pressure range of 0.5 to 200 atmospheres.

29. The lamp of claim 28, wherein the arc tube is doped with a W radiant filler material comprising at least one of iron chloride, iron bromide, chromium chloride, chromium boride, cadmium and vanadium. .

The plasma temperature that maximizes the linear radiation from the added atoms between 200 nm and 400 nm is in the range of 6,000 ° K to 7,000 ° K, and the plasma pressure is 5 to 50 atm. 35. The lamp of claim 34.

(A) is composed of single crystal sapphire tubing, has an anti-breaking pressure of at least 4,500 psi at 1,400 ° C. and a tensile strength of up to 56,000 psi at 1,400 ° C., and is substantially cylindrical; An arc tube having an inner diameter between 1 mm and 25 mm, an outer diameter of at least 2 mm;
(B) a plurality of end plugs including one of polycrystalline alumina and single crystal sapphire, provided at the opposite end of the arc tube;
(C) first and second electrodes extending through the end plug and provided at least partially within the arc tube;
(D) a seal that seals each end plug to an inner wall of a corresponding end of the arc tube;
(E) A voltage is applied to the first and second electrodes to generate an arc plasma, the voltage is provided by a power supply operating in a continuous non-flash mode, and the lamp operates at a specific standard. The arc plasma emits in the ultraviolet region of the radiation spectrum from 700 nm to 2500 nm, and a filler provided in the arc tube,
A high-intensity lamp.

38. The lamp of claim 36, wherein the arc tube is doped with an infrared emitting material comprising at least one of cesium, potassium and rubidium.

The temperature of the plasma for maximizing linear radiation from added atoms between 700 nm and 2500 nm is in the range of 4,000 ° K to 6,000 ° K, and the pressure of the plasma is 5 to 50 atm 37. The lamp of claim 36.

(A) The end plug is polished so that the clearance distance between the end plug and the arc tube is less than 0.2 mm, and the long C-axis of each end plug is parallel to the axis of the arc tube. Stages,
(B) coating the surface of each end plug with an alumina-silicate layer having at least one nanostructure wherein the alumina-silicate has a mixture of titanium dioxide between 1% and 5%;
(C) sintering the seal region within the arc tube and each end plug by applying heat from 1,700 ° C. to 2,000 ° C .;
A method for sealing a plurality of single-crystal sapphire end plugs made of single-crystal sapphire high-intensity lamps.

40. The method of claim 39, wherein the end plug has holes corresponding to insertion of the first and second electrodes of the lamp.