GB541650A - Improvements in or relating to optical systems - Google Patents

Improvements in or relating to optical systems

Info

Publication number
GB541650A
GB541650A GB788740A GB788740A GB541650A GB 541650 A GB541650 A GB 541650A GB 788740 A GB788740 A GB 788740A GB 788740 A GB788740 A GB 788740A GB 541650 A GB541650 A GB 541650A
Authority
GB
United Kingdom
Prior art keywords
spherical
correcting
taylor
produce
reflecting surfaces
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
GB788740A
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 GB788740A priority Critical patent/GB541650A/en
Publication of GB541650A publication Critical patent/GB541650A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0884—Catadioptric systems having a pupil corrector
    • G02B17/0888—Catadioptric systems having a pupil corrector the corrector having at least one aspheric surface, e.g. Schmidt plates
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G02B17/06—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror
    • G02B17/0647—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror using more than three curved mirrors
    • G02B17/0652—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror using more than three curved mirrors on-axis systems with at least one of the mirrors having a central aperture
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0804—Catadioptric systems using two curved mirrors
    • G02B17/0808—Catadioptric systems using two curved mirrors on-axis systems with at least one of the mirrors having a central aperture
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0852—Catadioptric systems having a field corrector only

Landscapes

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

Abstract

541,650. Optical systems. TAYLOR, TAYLOR & HOBSON, Ltd., and WARMISHAM, A. May 2, 1940, No. 7887. [Class 97 (i)] An objective comprise: two or more spherical reflecting surfaces in axial alignment, of which at least one is convergent and at least one divergent, and means for correcting spherical aberration, coma, and astigmatism, such means including one or more substantially afocal correcting surfaces each intersecting the optical axis substantially at the centre of curvature of one of the spherical surfaces, or at the image of such centre formed by paraxial imagery by any intervening element, the whole combination being such as to produce an approximately flat field. As shown, the spherical reflecting surfaces R5, R6 have equal and opposite curvatures, and correction is effected by the surfaces R2, R4 of transmitting thin plates to produce a flat image field F. Modifications are described in which the correcting surfaces are both on one plate, or are reflecting surfaces, and in which the spherical surfaces are on opposite faces of a single piece of glass. Complete data for nine examples are set out. Specifications 541,651 and 541,652 are referred to.
GB788740A 1940-05-02 1940-05-02 Improvements in or relating to optical systems Expired GB541650A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB788740A GB541650A (en) 1940-05-02 1940-05-02 Improvements in or relating to optical systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB788740A GB541650A (en) 1940-05-02 1940-05-02 Improvements in or relating to optical systems

Publications (1)

Publication Number Publication Date
GB541650A true GB541650A (en) 1941-12-05

Family

ID=9841700

Family Applications (1)

Application Number Title Priority Date Filing Date
GB788740A Expired GB541650A (en) 1940-05-02 1940-05-02 Improvements in or relating to optical systems

Country Status (1)

Country Link
GB (1) GB541650A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491072A (en) * 1945-06-19 1949-12-13 Perkin Elmer Corp Schmidt television projector with spherical aberration corrector
DE1082751B (en) * 1951-03-30 1960-06-02 Technicolor Motion Picture Device for recording or reproducing multicolor images
WO2012025365A1 (en) * 2010-08-25 2012-03-01 Carl Zeiss Smt Gmbh Imaging optical system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491072A (en) * 1945-06-19 1949-12-13 Perkin Elmer Corp Schmidt television projector with spherical aberration corrector
DE1082751B (en) * 1951-03-30 1960-06-02 Technicolor Motion Picture Device for recording or reproducing multicolor images
WO2012025365A1 (en) * 2010-08-25 2012-03-01 Carl Zeiss Smt Gmbh Imaging optical system
US9244361B2 (en) 2010-08-25 2016-01-26 Carl Zeiss Smt Gmbh Imaging optical system

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