GB1450590A - Correcting lens - Google Patents
Correcting lensInfo
- Publication number
- GB1450590A GB1450590A GB4592673A GB4592673A GB1450590A GB 1450590 A GB1450590 A GB 1450590A GB 4592673 A GB4592673 A GB 4592673A GB 4592673 A GB4592673 A GB 4592673A GB 1450590 A GB1450590 A GB 1450590A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oct
- elements
- colour television
- elongated
- lens
- Prior art date
- 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
-
- 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
-
- 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
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29864472A | 1972-10-18 | 1972-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1450590A true GB1450590A (en) | 1976-09-22 |
Family
ID=23151408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4592673A Expired GB1450590A (en) | 1972-10-18 | 1973-10-02 | Correcting lens |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS4975156A (zh) |
AU (1) | AU474326B2 (zh) |
BE (1) | BE806156A (zh) |
CA (1) | CA1009484A (zh) |
FR (1) | FR2203983B1 (zh) |
GB (1) | GB1450590A (zh) |
IT (1) | IT995544B (zh) |
NL (1) | NL7314291A (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5341821Y2 (zh) * | 1975-04-30 | 1978-10-07 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4922770A (zh) * | 1972-06-22 | 1974-02-28 |
-
1973
- 1973-09-26 AU AU60733/73A patent/AU474326B2/en not_active Expired
- 1973-10-01 IT IT2961373A patent/IT995544B/it active
- 1973-10-02 GB GB4592673A patent/GB1450590A/en not_active Expired
- 1973-10-15 CA CA183,367A patent/CA1009484A/en not_active Expired
- 1973-10-16 BE BE136761A patent/BE806156A/xx unknown
- 1973-10-17 NL NL7314291A patent/NL7314291A/xx unknown
- 1973-10-17 JP JP11675073A patent/JPS4975156A/ja active Pending
- 1973-10-17 FR FR7337057A patent/FR2203983B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2352362B2 (de) | 1976-11-18 |
FR2203983B1 (zh) | 1976-05-07 |
JPS4975156A (zh) | 1974-07-19 |
FR2203983A1 (zh) | 1974-05-17 |
IT995544B (it) | 1975-11-20 |
BE806156A (fr) | 1974-02-15 |
DE2352362A1 (de) | 1974-05-09 |
AU474326B2 (en) | 1976-07-22 |
CA1009484A (en) | 1977-05-03 |
NL7314291A (zh) | 1974-04-22 |
AU6073373A (en) | 1975-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |