FR899207A - Lens system - Google Patents

Lens system

Info

Publication number
FR899207A
FR899207A FR899207DA FR899207A FR 899207 A FR899207 A FR 899207A FR 899207D A FR899207D A FR 899207DA FR 899207 A FR899207 A FR 899207A
Authority
FR
France
Prior art keywords
lens system
lens
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
French (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.)
Optische Industrie de Oude Delft NV
Original Assignee
Optische Industrie de Oude Delft NV
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 Optische Industrie de Oude Delft NV filed Critical Optische Industrie de Oude Delft NV
Application granted granted Critical
Publication of FR899207A publication Critical patent/FR899207A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR899207D 1942-10-29 1943-10-27 Lens system Expired FR899207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL899207X 1942-10-29

Publications (1)

Publication Number Publication Date
FR899207A true FR899207A (en) 1945-05-24

Family

ID=19856296

Family Applications (1)

Application Number Title Priority Date Filing Date
FR899207D Expired FR899207A (en) 1942-10-29 1943-10-27 Lens system

Country Status (1)

Country Link
FR (1) FR899207A (en)

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