GB1531893A - Catadioptric objective system - Google Patents

Catadioptric objective system

Info

Publication number
GB1531893A
GB1531893A GB19213/76A GB1921376A GB1531893A GB 1531893 A GB1531893 A GB 1531893A GB 19213/76 A GB19213/76 A GB 19213/76A GB 1921376 A GB1921376 A GB 1921376A GB 1531893 A GB1531893 A GB 1531893A
Authority
GB
United Kingdom
Prior art keywords
aperture
focal length
mirror
lens
catadioptric
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
GB19213/76A
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.)
Rank Organization Ltd
Original Assignee
Rank Organization 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 Rank Organization Ltd filed Critical Rank Organization Ltd
Priority to GB19213/76A priority Critical patent/GB1531893A/en
Priority to NL7705045A priority patent/NL7705045A/en
Priority to IL52049A priority patent/IL52049A/en
Priority to DE19772720990 priority patent/DE2720990A1/en
Publication of GB1531893A publication Critical patent/GB1531893A/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
    • G02B17/0856—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors
    • 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
    • G02B17/0896—Catadioptric systems with variable magnification or multiple imaging planes, including multispectral systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Lenses (AREA)

Abstract

1531893 Catadioptric lenses with selectable focal lengths RANK ORGANISATION Ltd 27 Jan 1977 [10 May 1976] 19213/76 Heading G2J The focal length of a catadioptric lens Figs. 1A and B is changed by changing the secondary mirror while maintaining unchanged the following parameters:- (a) the entrance pupil position and aperture (b) the image position and diameter As described, the exchange of secondary mirrors is accompanied by a change of lenses within the aperture of the primary mirror. In the Example of Figs. 2A-B (not shown), a plane secondary is used in the shorter focal length configuration, while a dispersive mirror/lens combination is used in the longer focal length configuration, the change being accompanied by the exchange of a lens between the aperture of the primary mirror and the image plane. Detailed data of both configurations are given. The objective is useful for interchangeable day/ night observation devices.
GB19213/76A 1976-05-10 1976-05-10 Catadioptric objective system Expired GB1531893A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB19213/76A GB1531893A (en) 1976-05-10 1976-05-10 Catadioptric objective system
NL7705045A NL7705045A (en) 1976-05-10 1977-05-09 OPTICAL SYSTEM.
IL52049A IL52049A (en) 1976-05-10 1977-05-09 Catadioptric objective system
DE19772720990 DE2720990A1 (en) 1976-05-10 1977-05-10 CATADIOPTRIC LENS SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19213/76A GB1531893A (en) 1976-05-10 1976-05-10 Catadioptric objective system

Publications (1)

Publication Number Publication Date
GB1531893A true GB1531893A (en) 1978-11-08

Family

ID=10125614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19213/76A Expired GB1531893A (en) 1976-05-10 1976-05-10 Catadioptric objective system

Country Status (4)

Country Link
DE (1) DE2720990A1 (en)
GB (1) GB1531893A (en)
IL (1) IL52049A (en)
NL (1) NL7705045A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354742A (en) 1980-11-10 1982-10-19 Honeywell Inc. Optical system having a dual field of view
US4950056A (en) * 1987-11-27 1990-08-21 Gec-Marconi Limited Optical system
EP1365217A1 (en) * 2002-05-24 2003-11-26 Carl Zeiss Laser Optics GmbH Optical imaging system for imaging at least two light beam planes mutually spaced in the direction of the light beam

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3707979A1 (en) * 1987-03-12 1988-09-29 Sick Optik Elektronik Erwin OPTICAL SCANNER WITH TELECENTRIC LINE CAMERA

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4354742A (en) 1980-11-10 1982-10-19 Honeywell Inc. Optical system having a dual field of view
US4950056A (en) * 1987-11-27 1990-08-21 Gec-Marconi Limited Optical system
EP1365217A1 (en) * 2002-05-24 2003-11-26 Carl Zeiss Laser Optics GmbH Optical imaging system for imaging at least two light beam planes mutually spaced in the direction of the light beam
US7477438B2 (en) 2002-05-24 2009-01-13 Carl Zeiss Laser Optics Gmbh Optical imaging system for imaging at least two planes of a light beam spaced apart in the beam direction

Also Published As

Publication number Publication date
NL7705045A (en) 1977-11-14
DE2720990A1 (en) 1977-11-24
IL52049A (en) 1979-10-31
IL52049A0 (en) 1977-07-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee