GB844962A - Improvements in or relating to telescopes - Google Patents

Improvements in or relating to telescopes

Info

Publication number
GB844962A
GB844962A GB32924/57A GB3292457A GB844962A GB 844962 A GB844962 A GB 844962A GB 32924/57 A GB32924/57 A GB 32924/57A GB 3292457 A GB3292457 A GB 3292457A GB 844962 A GB844962 A GB 844962A
Authority
GB
United Kingdom
Prior art keywords
components
units
telescopes
objectives
spacing
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
GB32924/57A
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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar GmbH
Ernst Leitz GmbH
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 Ernst Leitz Wetzlar GmbH, Ernst Leitz GmbH filed Critical Ernst Leitz Wetzlar GmbH
Publication of GB844962A publication Critical patent/GB844962A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Telescopes (AREA)

Abstract

844,962. Telescopes: objectives. LEITZ G. m. b. H., E. Oct. 22, 1957 [April 23, 1957], No. 32924/57. Class 97(1) A telescope comprises an achromatic objective having two positive components one of which is movable and one of which has between 40% and 60% of the total power of the objective based on a focal length of 100 units at a spacing between the components of 2À3 units. Preferably the rear component is a doublet 8 which is exactly movable by rotating a ring 12 as a result of inter-action between magnetic rings 10, 11 as described in Specification 789,001. The front component is preferably a simple lens 2. The ratio of the refractive powers of the two components lies between 0À7 and 1À5 and the maximum distance between the components preferably does not exceed 5% of the objectives focal length at a spacing of 2-3 units.
GB32924/57A 1957-04-23 1957-10-22 Improvements in or relating to telescopes Expired GB844962A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US844962XA 1957-04-23 1957-04-23

Publications (1)

Publication Number Publication Date
GB844962A true GB844962A (en) 1960-08-17

Family

ID=22185321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32924/57A Expired GB844962A (en) 1957-04-23 1957-10-22 Improvements in or relating to telescopes

Country Status (1)

Country Link
GB (1) GB844962A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1202524B (en) * 1960-11-30 1965-10-07 Continental Elektro Ind Ag Telescope objective

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1202524B (en) * 1960-11-30 1965-10-07 Continental Elektro Ind Ag Telescope objective

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