Glow starter for a high pressure discharge lamp
AssigneeToshiba Lighting & Technology Corporation
InventorsNaoya Matsumoto, Hiroyuki Ogata, Satoshi Iwasawa, Takahito Kashiwagi, Akira Ito, Daisuke Takayama, Makoto Hashimoato, Toshihiko Ishigami
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Abstract
A glow starter comprises a discharge vessel, filled with a filling including a rare gas, substantially transmitting ultraviolet rays of about 300 nm or less. A pair of electrodes, which are arranged in the discharge vessel, is adapted and arranged to touch each ether by being heated by a glow discharge. The glow starter may be used for a high pressure discharge lamp, a high pressure discharge lamp apparatus, or a lighting fixture.
Claims8
A glow starter, comprising:
- a discharge vessel, filled with a filling including a rare gas, substantially transmitting ultraviolet rays of about 300 nm or less;
- and
- a pair of electrodes, which are arranged in the discharge vessel, being adapted and arranged to touch each other by being heated by a glow discharge.
A high pressure discharge lamp comprising:
- an arc tube;
- a glow starter, which irradiates the arc tube with ultraviolet rays, comprising:
- a discharge vessel, filled with a filling including a rare gas, substantially transmitting ultraviolet rays of about 300 nm or less;
- and
- a pair of electrodes, which are arranged in the discharge vessel, being adapted and arranged to touch each other by being heated by a glow discharge;
- and
- an outer bulb accommodating the arc tube and the glow starter.
A high pressure discharge lamp apparatus comprising:
- a high pressure discharge lamp comprising:
- an arc tube;
- a glow starter, which irradiates ultraviolet rays to the arc tube, comprising:
- a discharge vessel, filled with a filling including a rare gas, substantially transmitting ultraviolet rays of about 300 nm or less;
- and
- a pair of electrodes, which are arranged in the discharge vessel, being adapted and arranged to touch each other by being heated by a glow discharge;
- an outer bulb accommodating the arc tube, and the glow starter;
- and
- a ballast, which has a rated voltage of about 100V, and supplies a secondary voltage between about 200V and about 220V to the high pressure discharge lamp, or has a rated voltage of about 200V, arranged in series with the high pressure discharge lamp.
A lighting fixture comprising:
- a high pressure discharge lamp apparatus comprising:
- a high pressure discharge lamp comprising:
- an arc tube;
- a glow starter, which irradiates ultraviolet rays to the arc tube, comprising:
- a discharge vessel, filled with a filling including a rare gas, substantially transmitting ultraviolet rays of about 300 nm or less;
- and
- a pair of electrodes, which are arranged in the discharge vessel, being adapted and arranged to touch each other by being heated by a glow discharge;
- an outer bulb accommodating the arc tube, and the glow starter;
- and
- a ballast, which has a rated voltage of about 100V, and supplies a secondary voltage between about 200V and about 220V to the high pressure discharge lamp, or has a rated voltage of about 200V, arranged in series with the high pressure discharge lamp;
- and
- a body having a lamp socket and a reflector.
Dependencies are inferred from the claim text.