CH429223A - Optical lens - Google Patents

Optical lens

Info

Publication number
CH429223A
CH429223A CH1402863A CH1402863A CH429223A CH 429223 A CH429223 A CH 429223A CH 1402863 A CH1402863 A CH 1402863A CH 1402863 A CH1402863 A CH 1402863A CH 429223 A CH429223 A CH 429223A
Authority
CH
Switzerland
Prior art keywords
optical lens
lens
optical
Prior art date
Application number
CH1402863A
Other languages
French (fr)
Inventor
Chapman Alan
Original Assignee
Rank Precision Ind Limited Tra
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 Rank Precision Ind Limited Tra filed Critical Rank Precision Ind Limited Tra
Publication of CH429223A publication Critical patent/CH429223A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/144—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microscoopes, Condenser (AREA)
  • Lens Barrels (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
CH1402863A 1962-11-15 1963-11-15 Optical lens CH429223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB43252/62A GB1066503A (en) 1962-11-15 1962-11-15 Improvements in or relating to optical objectives of variable equivalent focal length

Publications (1)

Publication Number Publication Date
CH429223A true CH429223A (en) 1967-01-31

Family

ID=10427939

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1402863A CH429223A (en) 1962-11-15 1963-11-15 Optical lens

Country Status (2)

Country Link
CH (1) CH429223A (en)
GB (1) GB1066503A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5172376B2 (en) * 2008-02-14 2013-03-27 Ｈｏｙａ株式会社 Optical device shading structure

Also Published As

Publication number Publication date
GB1066503A (en) 1967-04-26

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