GB975446A - Mirror objective particularly suitable for photographic purposes - Google Patents

Mirror objective particularly suitable for photographic purposes

Info

Publication number
GB975446A
GB975446A GB3376561A GB3376561A GB975446A GB 975446 A GB975446 A GB 975446A GB 3376561 A GB3376561 A GB 3376561A GB 3376561 A GB3376561 A GB 3376561A GB 975446 A GB975446 A GB 975446A
Authority
GB
United Kingdom
Prior art keywords
mirror
focal length
objective
particularly suitable
secondary mirror
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
GB3376561A
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB975446A publication Critical patent/GB975446A/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
    • 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)

Abstract

975,446. Mirror objectives. CARL ZEISS-STIFTUNG, [trading as CARL ZEISS]. Sept. 21,1961 [Sept. 24, 1960], No. 33765/61. Heading G2J. In a mirror objective of the kind having a secondary mirror of deeper curvature than the main mirror and the two connecting systems (each of two lenses) disposed one in front of the secondary mirror and one to the rear of the main mirror, 1. The lenses of each system are of different glass types; 2. The system to the rear of the main mirror is afocal with a focal length more than 150 f, where f is the objective's focal length; and 3. The system in front of the secondary mirror is of negative power and has a focal length less than 1. 5f. f. Optical data are given for one example of the objective shown in which the secondary mirror is formed on the rear surface of the front correcting system.
GB3376561A 1960-09-24 1961-09-21 Mirror objective particularly suitable for photographic purposes Expired GB975446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ0008256 1960-09-24

Publications (1)

Publication Number Publication Date
GB975446A true GB975446A (en) 1964-11-18

Family

ID=7620432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3376561A Expired GB975446A (en) 1960-09-24 1961-09-21 Mirror objective particularly suitable for photographic purposes

Country Status (2)

Country Link
CH (1) CH396443A (en)
GB (1) GB975446A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19613009B4 (en) * 1996-03-25 2009-01-08 Frank Gallert Catadioptric lens
CN110579859A (en) * 2019-09-03 2019-12-17 佛山科学技术学院 compact type long-focal-length star sensor telecentric optical system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109239898B (en) * 2018-11-19 2024-03-19 苏州大学 Compact coaxial refraction and reflection type telescope objective lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19613009B4 (en) * 1996-03-25 2009-01-08 Frank Gallert Catadioptric lens
CN110579859A (en) * 2019-09-03 2019-12-17 佛山科学技术学院 compact type long-focal-length star sensor telecentric optical system

Also Published As

Publication number Publication date
CH396443A (en) 1965-07-31

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