[go: up one dir, main page]

GB649218A - Improvements in or relating to optical objectives - Google Patents

Improvements in or relating to optical objectives

Info

Publication number
GB649218A
GB649218A GB2700548A GB2700548A GB649218A GB 649218 A GB649218 A GB 649218A GB 2700548 A GB2700548 A GB 2700548A GB 2700548 A GB2700548 A GB 2700548A GB 649218 A GB649218 A GB 649218A
Authority
GB
United Kingdom
Prior art keywords
relating
optical objectives
objectives
optical
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
GB2700548A
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.)
Taylor Taylor and Hobson Ltd
Original Assignee
Taylor Taylor and Hobson Ltd
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 Taylor Taylor and Hobson Ltd filed Critical Taylor Taylor and Hobson Ltd
Priority to GB2700548A priority Critical patent/GB649218A/en
Publication of GB649218A publication Critical patent/GB649218A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
GB2700548A 1948-10-18 1948-10-18 Improvements in or relating to optical objectives Expired GB649218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2700548A GB649218A (en) 1948-10-18 1948-10-18 Improvements in or relating to optical objectives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2700548A GB649218A (en) 1948-10-18 1948-10-18 Improvements in or relating to optical objectives

Publications (1)

Publication Number Publication Date
GB649218A true GB649218A (en) 1951-01-24

Family

ID=10252633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2700548A Expired GB649218A (en) 1948-10-18 1948-10-18 Improvements in or relating to optical objectives

Country Status (1)

Country Link
GB (1) GB649218A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4192579A (en) * 1977-02-08 1980-03-11 Olympus Optical Company Limited Behind-stop type lens system for photographic cameras

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4192579A (en) * 1977-02-08 1980-03-11 Olympus Optical Company Limited Behind-stop type lens system for photographic cameras

Similar Documents

Publication Publication Date Title
GB662032A (en) Improvements in or relating to retaining rings
GB662519A (en) Improvements in or relating to retaining rings
GB662716A (en) Improvements in or relating to hinges
GB645296A (en) Improvements in stereoscopes
GB649218A (en) Improvements in or relating to optical objectives
GB641069A (en) Improvements in or relating to optical objectives
GB641118A (en) Improvements relating to spirit levels
GB641626A (en) Improvements in or relating to optical objectives
GB644175A (en) Improvements in or relating to spectacle frames
GB641131A (en) Improvements in or relating to pyrometers
GB642187A (en) Improvements in or relating to optical systems
GB648122A (en) Improvements in or relating to binnacles
GB640340A (en) Improvements in or relating to spectacle side-pieces
AU138315B2 (en) Improvements in or relating to lenses
AU141254B2 (en) Improvements in or relating to cloches
GB645208A (en) Improvements in and relating to optical instruments
GB663438A (en) Improvements in or relating to latching devices
AU138308B2 (en) Improvements in or relating to windowframes
AU138937B2 (en) Improvements in or relating to brush-lifting mechanism
AU146810B2 (en) Improvements in or relating to radio-receivers with band-spreading
AU1760048A (en) Improvements in or relating to lenses
AU143496B2 (en) Improvements in or relating to regenerators
AU139322B2 (en) Improvements in or relating to regenerators
AU2418848A (en) Improvements in or relating to cloches
AU141610B2 (en) Improvements in or relating to boilers