SE8703674L - Infraroett, bifokalt, optiskt system - Google Patents

Infraroett, bifokalt, optiskt system

Info

Publication number: SE8703674L
Authority: SE; Sweden
Prior art keywords: bifocal; changeable; infraroet; optical system; focussing
Prior art date: 1986-09-23

Application number

SE8703674A

Other languages

Unknown language ( )

English (en)

Swedish (sv)

Other versions

SE8703674D0 (sv

Inventor

J-C Perrin

Original Assignee

Trt Telecom Radio Electr

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.)

1986-09-23

Filing date

1987-09-23

Publication date

1989-05-14

1987-09-23 Application filed by Trt Telecom Radio Electr filed Critical Trt Telecom Radio Electr

1987-09-23 Publication of SE8703674D0 publication Critical patent/SE8703674D0/xx

1989-05-14 Publication of SE8703674L publication Critical patent/SE8703674L/

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)

SE8703674A 1986-09-23 1987-09-23 Infraroett, bifokalt, optiskt system SE8703674L (sv)

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 (2)

Publication Number	Publication Date
SE8703674D0 SE8703674D0 (sv)	1987-09-23
SE8703674L true SE8703674L (sv)	1989-05-14

Family

ID=9339182

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE8703674A SE8703674L (sv)	1986-09-23	1987-09-23	Infraroett, bifokalt, optiskt system

Country Status (5)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4234721C2 (de) *	1991-10-16	1995-10-19	Bodenseewerk Geraetetech	Dreilinsenobjektiv
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
DE19828825C2 (de) *	1998-06-27	2000-07-27	Siempelkamp Gmbh & Co	Bandpresse, insbesondere Doppelbandpresse
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL126309C (de) *	1965-06-10
US3972592A (en) *	1974-10-18	1976-08-03	Eastman Kodak Company	Zoom projection lens
GB1559514A (en) *	1976-10-02	1980-01-23	Pilkington Perkin Elmer Ltd	Infra-red zoom lenses
JPS5590928A (en) *	1978-12-29	1980-07-10	Olympus Optical Co Ltd	Endoscope objective lens which performs changing of magnification and focusing simultaneously

1986
- 1986-09-23 FR FR8613266A patent/FR2623298B1/fr not_active Expired - Lifetime
1987
- 1987-07-07 IT IT8721200A patent/IT1228257B/it active
- 1987-08-07 DE DE19873726355 patent/DE3726355A1/de not_active Ceased
- 1987-09-18 GB GBGB8722022.4A patent/GB8722022D0/en not_active Ceased
- 1987-09-23 SE SE8703674A patent/SE8703674L/ not_active Application Discontinuation

Also Published As

Publication number	Publication date
SE8703674D0 (sv)	1987-09-23
FR2623298B1 (fr)	1990-10-05
GB8722022D0 (en)	2009-11-25
DE3726355A1 (de)	1989-07-20
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
1995-02-28	NAV	Patent application has lapsed	Ref document number: 8703674-5 Effective date: 19930403

Date

Code

Title

Description

1995-02-28

NAV

Patent application has lapsed

Ref document number: 8703674-5

Effective date: 19930403