FR2128352A1 - - Google Patents

Info

Publication number
FR2128352A1
FR2128352A1 FR7206103A FR7206103A FR2128352A1 FR 2128352 A1 FR2128352 A1 FR 2128352A1 FR 7206103 A FR7206103 A FR 7206103A FR 7206103 A FR7206103 A FR 7206103A FR 2128352 A1 FR2128352 A1 FR 2128352A1
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.)
Granted
Application number
FR7206103A
Other versions
FR2128352B1 (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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of FR2128352A1 publication Critical patent/FR2128352A1/fr
Application granted granted Critical
Publication of FR2128352B1 publication Critical patent/FR2128352B1/fr
Expired legal-status Critical Current

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)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
FR7206103A 1971-03-05 1972-02-23 Expired FR2128352B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1971013665U JPS4721552U (fr) 1971-03-05 1971-03-05

Publications (2)

Publication Number Publication Date
FR2128352A1 true FR2128352A1 (fr) 1972-10-20
FR2128352B1 FR2128352B1 (fr) 1975-10-24

Family

ID=11839482

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7206103A Expired FR2128352B1 (fr) 1971-03-05 1972-02-23

Country Status (4)

Country Link
US (1) US3784282A (fr)
JP (1) JPS4721552U (fr)
FR (1) FR2128352B1 (fr)
GB (1) GB1323540A (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49145455U (fr) * 1973-04-12 1974-12-16
US3782253A (en) * 1973-05-02 1974-01-01 Rca Corp Color television picture tube screening method
US3953209A (en) * 1973-08-20 1976-04-27 Rca Corporation Method for preparing supplemental filter for lighthouse
JPS542612Y2 (fr) * 1973-11-10 1979-02-03
JPS5712961B2 (fr) * 1974-03-15 1982-03-13
JPS50125755A (fr) * 1974-03-19 1975-10-03
JPS522314U (fr) * 1975-06-24 1977-01-08
US4609266A (en) * 1982-06-07 1986-09-02 Roxor Corporation Elimination of internal reflections and diffractions from junctures in and at the periphery of, a segmented mirror
US4630905A (en) * 1981-02-10 1986-12-23 Roxor Corporation Elimination of internal reflections and diffractions from junctures in, and at the periphery of, a segmented mirror
IT1150272B (it) * 1982-03-11 1986-12-10 Siv Soc Italiana Vetro Rifrattore a prismi atto a concentrare energia solare,su un opportuno piano di raccolta,rimanendo in posizione fissa nel tempo
US4621898A (en) * 1983-03-17 1986-11-11 Allied Corporation Directional optical filter
JPS6077941U (ja) * 1983-11-02 1985-05-31 三菱電機株式会社 空気調和機の配管接続構造
JPS60113475U (ja) * 1984-01-05 1985-07-31 三菱重工業株式会社 空気調和機
US4632524A (en) * 1984-08-20 1986-12-30 Roxor Corporation Elimination of internal reflections and diffractions from junctures in, and at the periphery of a segmented mirror
US4674850A (en) * 1984-08-20 1987-06-23 Roxor Corporation Elimination of internal reflections and diffractions from junctures in, and at the periphery of, a segmented mirror
US4641933A (en) * 1984-08-20 1987-02-10 Roxor Corporation Elimination of internal reflections and diffractions from junctures in, and at the periphery of, a segmented mirror
JPH0637362Y2 (ja) * 1987-02-09 1994-09-28 カシオ計算機株式会社 液晶プロジェクタ
US6380994B1 (en) 1995-07-28 2002-04-30 Fujitsu Limited Fresnel lens and liquid crystal display device
US5751387A (en) * 1995-07-28 1998-05-12 Fujitsu Limited Fresnel lens and liquid crystal display device
US5801889A (en) * 1995-08-16 1998-09-01 Eastman Kodak Company Technique to eliminate scattered light in diffractive optical elements
US6310733B1 (en) * 1996-08-16 2001-10-30 Eugene Dolgoff Optical elements and methods for their manufacture

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385184A (en) * 1964-03-19 1968-05-28 Rca Corp Optical system for use in making color-phosphor mosaic screens

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134021A (en) * 1959-08-01 1964-05-19 Zeiss Ikon Ag Photoelectric exposure meters with light ray limiters
US3279340A (en) * 1964-03-19 1966-10-18 Rca Corp Art of making color-phosphor mosaic screens
US3628850A (en) * 1970-02-24 1971-12-21 Hitachi Ltd Correcting lens

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385184A (en) * 1964-03-19 1968-05-28 Rca Corp Optical system for use in making color-phosphor mosaic screens

Also Published As

Publication number Publication date
GB1323540A (en) 1973-07-18
DE2210727B2 (de) 1977-06-16
FR2128352B1 (fr) 1975-10-24
US3784282A (en) 1974-01-08
DE2210727A1 (de) 1972-09-14
JPS4721552U (fr) 1972-11-10

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Legal Events

Date Code Title Description
ST Notification of lapse