FR2239014A1 - - Google Patents
Info
- Publication number
- FR2239014A1 FR2239014A1 FR7425060A FR7425060A FR2239014A1 FR 2239014 A1 FR2239014 A1 FR 2239014A1 FR 7425060 A FR7425060 A FR 7425060A FR 7425060 A FR7425060 A FR 7425060A FR 2239014 A1 FR2239014 A1 FR 2239014A1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/84—Lamps with discharge constricted by high pressure
- H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/98—Lamps with closely spaced electrodes heated to incandescence by light-emitting discharge, e.g. tungsten arc lamp
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US382407A US3862449A (en) | 1973-07-25 | 1973-07-25 | Ion sleeve for arc lamp electrode |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2239014A1 true FR2239014A1 (de) | 1975-02-21 |
FR2239014B3 FR2239014B3 (de) | 1976-07-09 |
Family
ID=23508815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7425060A Expired FR2239014B3 (de) | 1973-07-25 | 1974-07-18 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3862449A (de) |
JP (1) | JPS5043773A (de) |
DE (1) | DE2435177A1 (de) |
FR (1) | FR2239014B3 (de) |
NL (1) | NL7410027A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2307433A1 (fr) * | 1975-04-07 | 1976-11-05 | Varian Associates | Lampe a arc a electrode mobile |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4472884A (en) * | 1982-01-11 | 1984-09-25 | Applied Technologies Associates | Borehole azimuth determination using magnetic field sensor |
US4599540A (en) * | 1984-07-16 | 1986-07-08 | Ilc Technology, Inc. | High intensity arc lamp |
US4633128A (en) * | 1985-05-17 | 1986-12-30 | Ilc Technology, Inc. | Short arc lamp with improved thermal characteristics |
JPH0773001B2 (ja) * | 1985-10-18 | 1995-08-02 | 東芝ライテック株式会社 | 投光光源装置 |
US4724352A (en) * | 1985-12-16 | 1988-02-09 | Ilc Technology, Inc. | Short-arc lamp with alternating current drive |
US6243057B1 (en) | 1990-11-16 | 2001-06-05 | Digital Projection Limited | Deformable mirror device driving circuit and method |
US6561675B1 (en) | 1995-01-27 | 2003-05-13 | Digital Projection Limited | Rectangular beam generating light source |
US6602104B1 (en) * | 2000-03-15 | 2003-08-05 | Eg&G Ilc Technology | Simplified miniature xenon arc lamp |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1992852A (en) * | 1930-04-16 | 1935-02-26 | Bader Jakob | Surge protector |
US2422659A (en) * | 1943-08-21 | 1947-06-24 | Bell Telephone Labor Inc | Spark gap discharge device |
US2456563A (en) * | 1944-10-21 | 1948-12-14 | Sylvania Electric Prod | Ultra high frequency electronic tube |
US2670451A (en) * | 1950-01-12 | 1954-02-23 | Westinghouse Electric Corp | Short arc high-pressure vapor discharge lamp |
US3758819A (en) * | 1971-12-27 | 1973-09-11 | Scient Instr Inc | Flash discharge apparatus and method |
-
1973
- 1973-07-25 US US382407A patent/US3862449A/en not_active Expired - Lifetime
-
1974
- 1974-07-18 FR FR7425060A patent/FR2239014B3/fr not_active Expired
- 1974-07-22 DE DE2435177A patent/DE2435177A1/de active Pending
- 1974-07-24 NL NL7410027A patent/NL7410027A/xx unknown
- 1974-07-25 JP JP49085551A patent/JPS5043773A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2307433A1 (fr) * | 1975-04-07 | 1976-11-05 | Varian Associates | Lampe a arc a electrode mobile |
Also Published As
Publication number | Publication date |
---|---|
FR2239014B3 (de) | 1976-07-09 |
DE2435177A1 (de) | 1975-02-13 |
US3862449A (en) | 1975-01-21 |
JPS5043773A (de) | 1975-04-19 |
NL7410027A (nl) | 1975-01-28 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |