Title:
HIGH PRESSURE MERCURY VAPOR DISCHARGE LAMP, AND LAMP UNIT
Document Type and Number:
WIPO Patent Application WO/2003/100822
Kind Code:
A1
Abstract:
A high pressure mercury vapor discharge lamp comprising an arc tube made of quartz glass and having a substantially ellipsoidal internal space, at least mercury and rare gas contained in the internal space of the arc tube, and two or more opposed electrodes disposed in the internal space of the arc tube. Let W (watt) be the lamp electric power during lighting, P (atmosphere) be the working pressure in the internal space of the arc tube, rs (mm) be the smaller radius of the internal space, r1 (mm) (r1 ≥ rs) be the larger radius of the internal space, and t (mm) be the wall thickness of the bulge defining the internal space, then the relations W ≥ 150 (watt), P ≥ 250 (atmosphere) and t ≤ 5 (mm) are satisfied and also the relation r1 ≤ 0.0103 × W - 0.00562 × P - 0.316 × rs + 0.615 × t + 1.93 is satisfied.
Inventors:
Kai, Makoto (6-4-402, Myokenzaka Katano-shi, Osaka, 576-0021, JP)
Takahashi, Kiyoshi (2-12-4, Yamateminami Kyotanabe-shi, Kyoto, 610-0354, JP)
Hataoka, Shinichiro (3-14-234, Miyukihigashimachi Neyagawa-shi, Osaka, 572-0055, JP)
Kaneko, Yuriko (4-13-31, Suzaku Nara-shi, Nara, 631-0806, JP)
Horiuchi, Makoto (106-2-412, Odono Sakurai-shi, Nara, 633-0062, JP)
Ichibakase, Tsuyoshi (34-24, Gungeshinmachi Takatsuki-shi, Osaka, 569-1136, JP)
Seki, Tomoyuki (43-17, Gungehonmachi Takatsuki-shi, Osaka, 569-1131, JP)
Suzuki, Yumi (1-66-4-201, Kitayama Hirakata-shi, Osaka, 573-0171, JP)
Takahashi, Kiyoshi (2-12-4, Yamateminami Kyotanabe-shi, Kyoto, 610-0354, JP)
Hataoka, Shinichiro (3-14-234, Miyukihigashimachi Neyagawa-shi, Osaka, 572-0055, JP)
Kaneko, Yuriko (4-13-31, Suzaku Nara-shi, Nara, 631-0806, JP)
Horiuchi, Makoto (106-2-412, Odono Sakurai-shi, Nara, 633-0062, JP)
Ichibakase, Tsuyoshi (34-24, Gungeshinmachi Takatsuki-shi, Osaka, 569-1136, JP)
Seki, Tomoyuki (43-17, Gungehonmachi Takatsuki-shi, Osaka, 569-1131, JP)
Suzuki, Yumi (1-66-4-201, Kitayama Hirakata-shi, Osaka, 573-0171, JP)
Application Number:
PCT/JP2003/005405
Publication Date:
December 04, 2003
Filing Date:
April 25, 2003
Export Citation:
Assignee:
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1006, Oaza Kadoma Kadoma-shi, Osaka, 571-8501, JP)
Kai, Makoto (6-4-402, Myokenzaka Katano-shi, Osaka, 576-0021, JP)
Takahashi, Kiyoshi (2-12-4, Yamateminami Kyotanabe-shi, Kyoto, 610-0354, JP)
Hataoka, Shinichiro (3-14-234, Miyukihigashimachi Neyagawa-shi, Osaka, 572-0055, JP)
Kaneko, Yuriko (4-13-31, Suzaku Nara-shi, Nara, 631-0806, JP)
Horiuchi, Makoto (106-2-412, Odono Sakurai-shi, Nara, 633-0062, JP)
Ichibakase, Tsuyoshi (34-24, Gungeshinmachi Takatsuki-shi, Osaka, 569-1136, JP)
Seki, Tomoyuki (43-17, Gungehonmachi Takatsuki-shi, Osaka, 569-1131, JP)
Suzuki, Yumi (1-66-4-201, Kitayama Hirakata-shi, Osaka, 573-0171, JP)
Kai, Makoto (6-4-402, Myokenzaka Katano-shi, Osaka, 576-0021, JP)
Takahashi, Kiyoshi (2-12-4, Yamateminami Kyotanabe-shi, Kyoto, 610-0354, JP)
Hataoka, Shinichiro (3-14-234, Miyukihigashimachi Neyagawa-shi, Osaka, 572-0055, JP)
Kaneko, Yuriko (4-13-31, Suzaku Nara-shi, Nara, 631-0806, JP)
Horiuchi, Makoto (106-2-412, Odono Sakurai-shi, Nara, 633-0062, JP)
Ichibakase, Tsuyoshi (34-24, Gungeshinmachi Takatsuki-shi, Osaka, 569-1136, JP)
Seki, Tomoyuki (43-17, Gungehonmachi Takatsuki-shi, Osaka, 569-1131, JP)
Suzuki, Yumi (1-66-4-201, Kitayama Hirakata-shi, Osaka, 573-0171, JP)
International Classes:
H01J17/20; H01J61/88; H01J17/02; H01J61/84; (IPC1-7): H01J61/88
Attorney, Agent or Firm:
Okuda, Seiji (OKUDA & ASSOCIATES, 2nd Floor Kataoka Bldg., 3-6, Uchiawajimachi
1-chome, Chuo-k, Osaka-shi Osaka, 540-0038, JP)
Previous Patent: HIGH-PRESSURE GAS DISCHARGE LAMP
Next Patent: CONTROL OF CONTACT RESISTANCE IN QUANTUM WELL INTERMIXED DEVICES
Next Patent: CONTROL OF CONTACT RESISTANCE IN QUANTUM WELL INTERMIXED DEVICES