FR398534A - Lentille perfectionnée - Google Patents

Lentille perfectionnée

Info

Publication number
FR398534A
FR398534A FR398534DA FR398534A FR 398534 A FR398534 A FR 398534A FR 398534D A FR398534D A FR 398534DA FR 398534 A FR398534 A FR 398534A
Authority
FR
France
Prior art keywords
advanced lens
advanced
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
English (en)
Inventor
Friedrich W. Ellermann
Erich David Wahliss
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.)
ERICH DAVID WAHLISS
FRIEDRICH W ELLERMANN
Original Assignee
ERICH DAVID WAHLISS
FRIEDRICH W ELLERMANN
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 ERICH DAVID WAHLISS, FRIEDRICH W ELLERMANN filed Critical ERICH DAVID WAHLISS
Application granted granted Critical
Publication of FR398534A publication Critical patent/FR398534A/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
    • G02B3/04—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)
FR398534D 1909-01-15 1909-01-15 Lentille perfectionnée Expired FR398534A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR398534T 1909-01-15

Publications (1)

Publication Number Publication Date
FR398534A true FR398534A (fr) 1909-06-07

Family

ID=1443551

Family Applications (1)

Application Number Title Priority Date Filing Date
FR398534D Expired FR398534A (fr) 1909-01-15 1909-01-15 Lentille perfectionnée

Country Status (1)

Country Link
FR (1) FR398534A (fr)

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