FR927097A - Improvements to lenses for optical uses - Google Patents

Improvements to lenses for optical uses

Info

Publication number
FR927097A
FR927097A FR927097DA FR927097A FR 927097 A FR927097 A FR 927097A FR 927097D A FR927097D A FR 927097DA FR 927097 A FR927097 A FR 927097A
Authority
FR
France
Prior art keywords
lenses
optical uses
optical
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.)
Thales Optronics Ltd
Original Assignee
Thales Optronics 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 Thales Optronics Ltd filed Critical Thales Optronics Ltd
Application granted granted Critical
Publication of FR927097A publication Critical patent/FR927097A/en
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
    • G02B3/04—Simple or compound lenses with non-spherical faces with continuous faces that are rotationally symmetrical but deviate from a true sphere, e.g. so called "aspheric" lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR927097D 1939-09-08 1946-05-20 Improvements to lenses for optical uses Expired FR927097A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB927097X 1939-09-08

Publications (1)

Publication Number Publication Date
FR927097A true FR927097A (en) 1947-10-20

Family

ID=10727908

Family Applications (1)

Application Number Title Priority Date Filing Date
FR927097D Expired FR927097A (en) 1939-09-08 1946-05-20 Improvements to lenses for optical uses

Country Status (1)

Country Link
FR (1) FR927097A (en)

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