FR699757A - Improvements to optical systems - Google Patents

Improvements to optical systems

Info

Publication number
FR699757A
FR699757A FR699757DA FR699757A FR 699757 A FR699757 A FR 699757A FR 699757D A FR699757D A FR 699757DA FR 699757 A FR699757 A FR 699757A
Authority
FR
France
Prior art keywords
optical systems
optical
systems
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
Leon Forrest Douglass
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 FR699757A publication Critical patent/FR699757A/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
    • G02B13/08—Anamorphotic objectives
    • G02B13/10—Anamorphotic objectives involving prisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR699757D 1930-07-30 1930-07-30 Improvements to optical systems Expired FR699757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR699757T 1930-07-30

Publications (1)

Publication Number Publication Date
FR699757A true FR699757A (en) 1931-02-19

Family

ID=9048387

Family Applications (1)

Application Number Title Priority Date Filing Date
FR699757D Expired FR699757A (en) 1930-07-30 1930-07-30 Improvements to optical systems

Country Status (1)

Country Link
FR (1) FR699757A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1098231B (en) * 1954-04-12 1961-01-26 Taylor Taylor & Hobson Ltd Optical system using a distortion prism arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1098231B (en) * 1954-04-12 1961-01-26 Taylor Taylor & Hobson Ltd Optical system using a distortion prism arrangement

Similar Documents

Publication Publication Date Title
FR721123A (en) Improvements to telephone systems
FR714881A (en) Improvements to television systems
FR699757A (en) Improvements to optical systems
FR669729A (en) Improvements to optical comparators
FR739733A (en) Improvements to amplifier systems
FR701306A (en) Improvements to television systems
FR734120A (en) Improvements to optical systems
FR713927A (en) Improvements to electro-optical systems
FR681182A (en) Improvements to optical systems
FR706533A (en) Improvements to optical systems of oscillographs
FR642348A (en) Improvements to optical systems
FR700201A (en) Improvements to simplex telegraph systems
FR609921A (en) Improvements to optical systems
FR660700A (en) Improvements to optical systems
FR710115A (en) Improvements to electro-optical systems
FR712321A (en) Improvements to telephone systems
FR728626A (en) Improvements to telephone systems
FR723779A (en) Improvements to transmission systems
FR621653A (en) Improvements to optical lens systems
FR669069A (en) Improvements to light projection systems
FR694706A (en) Improvements to electro-optical systems
FR714897A (en) Improvements to electro-optical transmission systems
FR614065A (en) Improvements to optical projection systems
FR726997A (en) Improvements to telegraph systems
FR38030E (en) Improvements to television systems