FR2162064B1 - - Google Patents

Info

Publication number
FR2162064B1
FR2162064B1 FR7242426A FR7242426A FR2162064B1 FR 2162064 B1 FR2162064 B1 FR 2162064B1 FR 7242426 A FR7242426 A FR 7242426A FR 7242426 A FR7242426 A FR 7242426A FR 2162064 B1 FR2162064 B1 FR 2162064B1
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
Application number
FR7242426A
Other versions
FR2162064A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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
Priority claimed from JP9533371A external-priority patent/JPS5141513B2/ja
Priority claimed from JP696372A external-priority patent/JPS5137137B2/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of FR2162064A1 publication Critical patent/FR2162064A1/fr
Application granted granted Critical
Publication of FR2162064B1 publication Critical patent/FR2162064B1/fr
Expired legal-status Critical Current

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
FR7242426A 1971-11-29 1972-11-29 Expired FR2162064B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9533371A JPS5141513B2 (fr) 1971-11-29 1971-11-29
JP696372A JPS5137137B2 (fr) 1972-01-19 1972-01-19

Publications (2)

Publication Number Publication Date
FR2162064A1 FR2162064A1 (fr) 1973-07-13
FR2162064B1 true FR2162064B1 (fr) 1976-10-29

Family

ID=26341179

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7242426A Expired FR2162064B1 (fr) 1971-11-29 1972-11-29

Country Status (5)

Country Link
US (1) US4052122A (fr)
BE (1) BE792073A (fr)
CA (1) CA974805A (fr)
FR (1) FR2162064B1 (fr)
GB (1) GB1389096A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54154339A (en) * 1978-05-26 1979-12-05 Hitachi Ltd Prism for fluorescent screen exposure
GB8712458D0 (en) * 1987-05-27 1987-07-01 Philips Nv Producing colour picture tube screen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2082100A (en) * 1933-09-07 1937-06-01 Holophane Co Inc Light spreading lens
DE1663875U (de) * 1949-06-13 1953-09-24 Rollei Werke Franke Heidecke Optische linse.
US2999126A (en) * 1958-05-29 1961-09-05 Harries Television Res Ltd Facetted correction lens for minimizing keystoning of off-axis projectors
US3177397A (en) * 1960-06-06 1965-04-06 Vapor Heating Corp Automatic headlight dimmer system
US3628850A (en) * 1970-02-24 1971-12-21 Hitachi Ltd Correcting lens

Also Published As

Publication number Publication date
CA974805A (en) 1975-09-23
US4052122A (en) 1977-10-04
FR2162064A1 (fr) 1973-07-13
BE792073A (fr) 1973-03-16
DE2258468B2 (de) 1976-01-08
GB1389096A (en) 1975-04-03
DE2258468A1 (de) 1973-06-07

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Legal Events

Date Code Title Description
ST Notification of lapse