FR938163A - Perfectionnements à des lentilles - Google Patents

Perfectionnements à des lentilles

Info

Publication number
FR938163A
FR938163A FR938163DA FR938163A FR 938163 A FR938163 A FR 938163A FR 938163D A FR938163D A FR 938163DA FR 938163 A FR938163 A FR 938163A
Authority
FR
France
Prior art keywords
enhancements
lens
lens enhancements
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
Application number
Other languages
English (en)
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.)
Polaroid Corp
Original Assignee
Polaroid 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 Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of FR938163A publication Critical patent/FR938163A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/33—Modifications of amplifiers to reduce non-linear distortion in discharge-tube amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
FR938163D 1942-12-23 1946-02-05 Perfectionnements à des lentilles Expired FR938163A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US573857XA 1942-12-23 1942-12-23

Publications (1)

Publication Number Publication Date
FR938163A true FR938163A (fr) 1948-09-07

Family

ID=22010256

Family Applications (1)

Application Number Title Priority Date Filing Date
FR938163D Expired FR938163A (fr) 1942-12-23 1946-02-05 Perfectionnements à des lentilles

Country Status (2)

Country Link
FR (1) FR938163A (fr)
GB (1) GB573857A (fr)

Also Published As

Publication number Publication date
GB573857A (en) 1945-12-10

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