FR714994A - Wide angle lens - Google Patents

Wide angle lens

Info

Publication number
FR714994A
FR714994A FR714994DA FR714994A FR 714994 A FR714994 A FR 714994A FR 714994D A FR714994D A FR 714994DA FR 714994 A FR714994 A FR 714994A
Authority
FR
France
Prior art keywords
wide angle
angle lens
lens
wide
angle
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)
Inventor
Wilmot Roby Evans
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 filed Critical
Application granted granted Critical
Publication of FR714994A publication Critical patent/FR714994A/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)
FR714994D 1931-04-09 1931-04-09 Wide angle lens Expired FR714994A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR714994T 1931-04-09

Publications (1)

Publication Number Publication Date
FR714994A true FR714994A (en) 1931-11-23

Family

ID=9088691

Family Applications (1)

Application Number Title Priority Date Filing Date
FR714994D Expired FR714994A (en) 1931-04-09 1931-04-09 Wide angle lens

Country Status (1)

Country Link
FR (1) FR714994A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146770A3 (en) * 1981-08-24 1985-07-31 Walter Meier Lens attachment for the projection of stereoscopic images anamorphotically compressed on a spherical surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146770A3 (en) * 1981-08-24 1985-07-31 Walter Meier Lens attachment for the projection of stereoscopic images anamorphotically compressed on a spherical surface

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