BE806154A - Lentilles de correction notamment pour la realisation de cinescopes - Google Patents

Lentilles de correction notamment pour la realisation de cinescopes

Info

Publication number
BE806154A
BE806154A BE136759A BE136759A BE806154A BE 806154 A BE806154 A BE 806154A BE 136759 A BE136759 A BE 136759A BE 136759 A BE136759 A BE 136759A BE 806154 A BE806154 A BE 806154A
Authority
BE
Belgium
Prior art keywords
cinescopes
realization
correction lenses
lenses especially
correction
Prior art date
Application number
BE136759A
Other languages
English (en)
French (fr)
Inventor
A M Morrell
F Van Hekken
Original Assignee
Rca Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rca Corp filed Critical Rca Corp
Publication of BE806154A publication Critical patent/BE806154A/xx

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)
BE136759A 1972-10-18 1973-10-16 Lentilles de correction notamment pour la realisation de cinescopes BE806154A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00298642A US3811754A (en) 1972-10-18 1972-10-18 Correcting lens

Publications (1)

Publication Number Publication Date
BE806154A true BE806154A (fr) 1974-02-15

Family

ID=23151399

Family Applications (1)

Application Number Title Priority Date Filing Date
BE136759A BE806154A (fr) 1972-10-18 1973-10-16 Lentilles de correction notamment pour la realisation de cinescopes

Country Status (9)

Country Link
US (1) US3811754A (sh)
JP (1) JPS4975155A (sh)
AU (1) AU472436B2 (sh)
BE (1) BE806154A (sh)
CA (1) CA998270A (sh)
FR (1) FR2203984B1 (sh)
GB (1) GB1450589A (sh)
IT (1) IT995546B (sh)
NL (1) NL7314290A (sh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4979255A (sh) * 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
CN102549333B (zh) * 2009-09-18 2014-12-10 皇家飞利浦电子股份有限公司 灯具和光学元件

Family Cites Families (6)

* Cited by examiner, † Cited by third party
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 (sh) * 1972-06-14 1974-02-19

Also Published As

Publication number Publication date
JPS4975155A (sh) 1974-07-19
IT995546B (it) 1975-11-20
FR2203984B1 (sh) 1976-05-07
US3811754A (en) 1974-05-21
NL7314290A (sh) 1974-04-22
AU472436B2 (en) 1976-05-27
GB1450589A (en) 1976-09-22
DE2352363B2 (de) 1976-04-15
AU6081073A (en) 1975-03-27
DE2352363A1 (de) 1974-05-09
CA998270A (en) 1976-10-12
FR2203984A1 (sh) 1974-05-17

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