FR2203984B1 - - Google Patents
Info
- Publication number
- FR2203984B1 FR2203984B1 FR7337184A FR7337184A FR2203984B1 FR 2203984 B1 FR2203984 B1 FR 2203984B1 FR 7337184 A FR7337184 A FR 7337184A FR 7337184 A FR7337184 A FR 7337184A FR 2203984 B1 FR2203984 B1 FR 2203984B1
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
- H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
- H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
- H01J9/2272—Devices for carrying out the processes, e.g. light houses
- H01J9/2273—Auxiliary lenses and filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00298642A US3811754A (en) | 1972-10-18 | 1972-10-18 | Correcting lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2203984A1 FR2203984A1 (it) | 1974-05-17 |
| FR2203984B1 true FR2203984B1 (it) | 1976-05-07 |
Family
ID=23151399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7337184A Expired FR2203984B1 (it) | 1972-10-18 | 1973-10-18 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3811754A (it) |
| JP (1) | JPS4975155A (it) |
| AU (1) | AU472436B2 (it) |
| BE (1) | BE806154A (it) |
| CA (1) | CA998270A (it) |
| FR (1) | FR2203984B1 (it) |
| GB (1) | GB1450589A (it) |
| IT (1) | IT995546B (it) |
| NL (1) | NL7314290A (it) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4979255A (it) * | 1972-12-04 | 1974-07-31 | ||
| DE3305979A1 (de) * | 1983-02-21 | 1984-08-23 | Richard 8901 Neusäß Wallner | Lichtverdichter |
| US4830481A (en) * | 1988-08-12 | 1989-05-16 | Minnesota Mining And Manufacturing Company | Multifocal diffractive lens |
| RU2012115460A (ru) | 2009-09-18 | 2013-10-27 | Конинклейке Филипс Электроникс Н.В. | Светильник и оптический компонент |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1952237A (en) * | 1930-11-24 | 1934-03-27 | Ylla-Conte Jose | Lens for the concentration of solar heat |
| GB791312A (en) * | 1953-03-26 | 1958-02-26 | Theodore Hendrik Nakken | Photographic objectives |
| US2999126A (en) * | 1958-05-29 | 1961-09-05 | Harries Television Res Ltd | Facetted correction lens for minimizing keystoning of off-axis projectors |
| US3495511A (en) * | 1967-10-05 | 1970-02-17 | Nat Video Corp | Heterogeneous lens for forming phosphor patterns on color kinescope |
| US3628850A (en) * | 1970-02-24 | 1971-12-21 | Hitachi Ltd | Correcting lens |
| JPS4918572A (it) * | 1972-06-14 | 1974-02-19 |
-
1972
- 1972-10-18 US US00298642A patent/US3811754A/en not_active Expired - Lifetime
-
1973
- 1973-09-27 AU AU60810/73A patent/AU472436B2/en not_active Expired
- 1973-10-01 IT IT29615/73A patent/IT995546B/it active
- 1973-10-02 GB GB4592373A patent/GB1450589A/en not_active Expired
- 1973-10-15 CA CA183,372A patent/CA998270A/en not_active Expired
- 1973-10-16 BE BE136759A patent/BE806154A/xx unknown
- 1973-10-16 JP JP48116269A patent/JPS4975155A/ja active Pending
- 1973-10-17 NL NL7314290A patent/NL7314290A/xx unknown
- 1973-10-18 FR FR7337184A patent/FR2203984B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA998270A (en) | 1976-10-12 |
| DE2352363A1 (de) | 1974-05-09 |
| JPS4975155A (it) | 1974-07-19 |
| GB1450589A (en) | 1976-09-22 |
| IT995546B (it) | 1975-11-20 |
| US3811754A (en) | 1974-05-21 |
| FR2203984A1 (it) | 1974-05-17 |
| DE2352363B2 (de) | 1976-04-15 |
| AU472436B2 (en) | 1976-05-27 |
| AU6081073A (en) | 1975-03-27 |
| NL7314290A (it) | 1974-04-22 |
| BE806154A (fr) | 1974-02-15 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |