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DE3726355A1 - Bifokales optisches infrarotsystem - Google Patents

Bifokales optisches infrarotsystem

Info

Publication number
DE3726355A1
DE3726355A1 DE19873726355 DE3726355A DE3726355A1 DE 3726355 A1 DE3726355 A1 DE 3726355A1 DE 19873726355 DE19873726355 DE 19873726355 DE 3726355 A DE3726355 A DE 3726355A DE 3726355 A1 DE3726355 A1 DE 3726355A1
Authority
DE
Germany
Prior art keywords
radius
focal length
lens
diameter
lenses
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.)
Ceased
Application number
DE19873726355
Other languages
German (de)
English (en)
Inventor
Jean-Claude Perrin
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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Publication of DE3726355A1 publication Critical patent/DE3726355A1/de
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/143—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only
    • G02B15/1431—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive
    • G02B15/143105—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having three groups only the first group being positive arranged +-+

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Lenses (AREA)
  • Eyeglasses (AREA)
DE19873726355 1986-09-23 1987-08-07 Bifokales optisches infrarotsystem Ceased DE3726355A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8613266A FR2623298B1 (fr) 1986-09-23 1986-09-23 Systeme optique bifocal infrarouge

Publications (1)

Publication Number Publication Date
DE3726355A1 true DE3726355A1 (de) 1989-07-20

Family

ID=9339182

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873726355 Ceased DE3726355A1 (de) 1986-09-23 1987-08-07 Bifokales optisches infrarotsystem

Country Status (5)

Country Link
DE (1) DE3726355A1 (sv)
FR (1) FR2623298B1 (sv)
GB (1) GB8722022D0 (sv)
IT (1) IT1228257B (sv)
SE (1) SE8703674L (sv)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234721A1 (de) * 1991-10-16 1993-04-22 Bodenseewerk Geraetetech Dreilinsenobjektiv
DE19828825A1 (de) * 1998-06-27 1999-12-30 Siempelkamp Gmbh & Co Bandpresse, insbesondere Doppelbandpresse

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708353A1 (fr) * 1993-07-26 1995-02-03 Bertin & Cie Système de grossissement pour dispositif d'imagerie à balayge opto-mécanique.
US5894371A (en) * 1997-06-06 1999-04-13 Alliedsignal, Inc. Focus mechanism for varifocal lens
FR2910133B1 (fr) * 2006-12-13 2009-02-13 Thales Sa Systeme d'imagerie ir2-ir3 bi-champ compact
FR2910134B1 (fr) * 2006-12-13 2009-02-13 Thales Sa Systeme d'imagerie ir2-ir3 bi-champ compact
FR2928462B1 (fr) 2008-03-04 2010-06-11 Thales Sa Dispositif optique mixte d'imagerie multi-focale et de calibration ir

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1472189A1 (de) * 1965-06-10 1969-01-09 Rodenstock Optik G Dreilinsiges Infrarot-Objektiv
DE2546930A1 (de) * 1974-10-18 1976-04-29 Eastman Kodak Co Objektiv mit veraenderbarer brennweite
DE2951820C2 (de) * 1978-12-29 1985-12-12 Olympus Optical Co., Ltd., Tokio/Tokyo Objektiv, insbesondere Endoskopobjektiv mit veränderbarer Brennweite

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1559514A (en) * 1976-10-02 1980-01-23 Pilkington Perkin Elmer Ltd Infra-red zoom lenses

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1472189A1 (de) * 1965-06-10 1969-01-09 Rodenstock Optik G Dreilinsiges Infrarot-Objektiv
DE2546930A1 (de) * 1974-10-18 1976-04-29 Eastman Kodak Co Objektiv mit veraenderbarer brennweite
DE2951820C2 (de) * 1978-12-29 1985-12-12 Olympus Optical Co., Ltd., Tokio/Tokyo Objektiv, insbesondere Endoskopobjektiv mit veränderbarer Brennweite

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SPIE, 1978, S. 24-27 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234721A1 (de) * 1991-10-16 1993-04-22 Bodenseewerk Geraetetech Dreilinsenobjektiv
US5251063A (en) * 1991-10-16 1993-10-05 Bodenseewerk Geratetechnik Gmbh Large-aperture three-lens objective with aspherical-surfaces
DE19828825A1 (de) * 1998-06-27 1999-12-30 Siempelkamp Gmbh & Co Bandpresse, insbesondere Doppelbandpresse
DE19828825C2 (de) * 1998-06-27 2000-07-27 Siempelkamp Gmbh & Co Bandpresse, insbesondere Doppelbandpresse

Also Published As

Publication number Publication date
SE8703674D0 (sv) 1987-09-23
SE8703674L (sv) 1989-05-14
FR2623298B1 (fr) 1990-10-05
GB8722022D0 (en) 2009-11-25
IT8721200A0 (it) 1987-07-07
FR2623298A1 (fr) 1989-05-19
IT1228257B (it) 1991-06-05

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection