FR1143595A - Improvements to optical systems - Google Patents

Improvements to optical systems

Info

Publication number
FR1143595A
FR1143595A FR1143595DA FR1143595A FR 1143595 A FR1143595 A FR 1143595A FR 1143595D A FR1143595D A FR 1143595DA FR 1143595 A FR1143595 A FR 1143595A
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)
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.)
Bell and Howell Co
Original Assignee
Bell and Howell Co
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 Bell and Howell Co filed Critical Bell and Howell Co
Application granted granted Critical
Publication of FR1143595A publication Critical patent/FR1143595A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR1143595D 1953-10-07 1954-06-21 Improvements to optical systems Expired FR1143595A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1143595XA 1953-10-07 1953-10-07

Publications (1)

Publication Number Publication Date
FR1143595A true FR1143595A (en) 1957-10-02

Family

ID=22354756

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1143595D Expired FR1143595A (en) 1953-10-07 1954-06-21 Improvements to optical systems

Country Status (1)

Country Link
FR (1) FR1143595A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1225736B (en) * 1960-10-21 1966-09-29 Licentia Gmbh Three-pole gas switch for medium voltages

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1225736B (en) * 1960-10-21 1966-09-29 Licentia Gmbh Three-pole gas switch for medium voltages

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