IE41998B1 - Improvements in or relating to discharge-type projection lamps - Google Patents
Improvements in or relating to discharge-type projection lampsInfo
- Publication number
- IE41998B1 IE41998B1 IE5376A IE5376A IE41998B1 IE 41998 B1 IE41998 B1 IE 41998B1 IE 5376 A IE5376 A IE 5376A IE 5376 A IE5376 A IE 5376A IE 41998 B1 IE41998 B1 IE 41998B1
- Authority
- IE
- Ireland
- Prior art keywords
- tube
- discharge
- core member
- cover
- projection lamp
- Prior art date
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 8
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 229920003023 plastic Polymers 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000010453 quartz Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- -1 silicate compound Chemical class 0.000 abstract description 2
- 239000002966 varnish Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 3
- 238000012505 colouration Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- 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
- H01J61/10—Shields, screens, or guides for influencing the discharge
- H01J61/103—Shields, screens or guides arranged to extend the discharge path
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7501078A FR2298186A1 (fr) | 1975-01-15 | 1975-01-15 | Lampe de protection du type a decharge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE41998L IE41998L (en) | 1976-07-15 |
| IE41998B1 true IE41998B1 (en) | 1980-05-07 |
Family
ID=9149794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE5376A IE41998B1 (en) | 1975-01-15 | 1976-01-13 | Improvements in or relating to discharge-type projection lamps |
Country Status (11)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2169440B (en) * | 1984-12-14 | 1989-08-16 | Matsushita Electric Works Ltd | High pressure discharge lamp |
-
1975
- 1975-01-15 FR FR7501078A patent/FR2298186A1/fr active Granted
-
1976
- 1976-01-07 NL NL7600112A patent/NL7600112A/xx not_active Application Discontinuation
- 1976-01-07 BE BE163355A patent/BE837364A/xx unknown
- 1976-01-08 DE DE19762600423 patent/DE2600423C3/de not_active Expired
- 1976-01-13 IE IE5376A patent/IE41998B1/en unknown
- 1976-01-13 LU LU74180A patent/LU74180A1/xx unknown
- 1976-01-14 GB GB130776A patent/GB1517451A/en not_active Expired
- 1976-01-14 DK DK13876A patent/DK139885B/da unknown
- 1976-01-14 CH CH41376A patent/CH607324A5/xx not_active IP Right Cessation
- 1976-01-14 IT IT6708776A patent/IT1055799B/it active
- 1976-01-14 ES ES444489A patent/ES444489A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1517451A (en) | 1978-07-12 |
| FR2298186B1 (enrdf_load_html_response) | 1978-02-03 |
| DE2600423A1 (de) | 1976-07-22 |
| DK139885B (da) | 1979-05-07 |
| ES444489A1 (es) | 1977-05-16 |
| DE2600423B2 (de) | 1978-08-10 |
| IT1055799B (it) | 1982-01-11 |
| IE41998L (en) | 1976-07-15 |
| LU74180A1 (enrdf_load_html_response) | 1976-07-23 |
| NL7600112A (nl) | 1976-07-19 |
| FR2298186A1 (fr) | 1976-08-13 |
| DE2600423C3 (de) | 1979-04-12 |
| CH607324A5 (enrdf_load_html_response) | 1978-12-15 |
| DK139885C (enrdf_load_html_response) | 1979-10-08 |
| BE837364A (fr) | 1976-05-03 |
| DK13876A (enrdf_load_html_response) | 1976-07-16 |
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