IT995545B - Lente di correzione presentante due superfici operative - Google Patents

Lente di correzione presentante due superfici operative

Info

Publication number
IT995545B
IT995545B IT2961473A IT2961473A IT995545B IT 995545 B IT995545 B IT 995545B IT 2961473 A IT2961473 A IT 2961473A IT 2961473 A IT2961473 A IT 2961473A IT 995545 B IT995545 B IT 995545B
Authority
IT
Italy
Prior art keywords
correction lens
operating surfaces
operating
correction
lens
Prior art date
Application number
IT2961473A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT995545B publication Critical patent/IT995545B/it

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)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
IT2961473A 1972-10-18 1973-10-01 Lente di correzione presentante due superfici operative IT995545B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29863772A 1972-10-18 1972-10-18

Publications (1)

Publication Number Publication Date
IT995545B true IT995545B (it) 1975-11-20

Family

ID=23151370

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2961473A IT995545B (it) 1972-10-18 1973-10-01 Lente di correzione presentante due superfici operative

Country Status (8)

Country Link
JP (1) JPS4975157A (it)
AU (1) AU472435B2 (it)
BE (1) BE806153A (it)
CA (1) CA1017181A (it)
FR (1) FR2203981B1 (it)
GB (1) GB1451211A (it)
IT (1) IT995545B (it)
NL (1) NL7314289A (it)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1490345A (fr) * 1966-08-26 1967-07-28 Rca Corp Lentilles optiques
US3628850A (en) * 1970-02-24 1971-12-21 Hitachi Ltd Correcting lens
JPS5149544B2 (it) * 1972-01-19 1976-12-27

Also Published As

Publication number Publication date
NL7314289A (it) 1974-04-22
JPS4975157A (it) 1974-07-19
BE806153A (fr) 1974-02-15
FR2203981A1 (it) 1974-05-17
AU6080773A (en) 1975-03-27
CA1017181A (en) 1977-09-13
DE2352364B2 (de) 1977-02-03
FR2203981B1 (it) 1978-06-30
GB1451211A (en) 1976-09-29
DE2352364A1 (de) 1974-05-09
AU472435B2 (en) 1976-05-27

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