IN2012DE00519A - - Google Patents

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Publication number
IN2012DE00519A
IN2012DE00519A IN519DE2012A IN2012DE00519A IN 2012DE00519 A IN2012DE00519 A IN 2012DE00519A IN 519DE2012 A IN519DE2012 A IN 519DE2012A IN 2012DE00519 A IN2012DE00519 A IN 2012DE00519A
Authority
IN
India
Prior art keywords
optical
plane mirror
photo
diameter
telescope
Prior art date
Application number
Inventor
Perrin Guillaume
Liotard Arnaud
Benard Herve
Original Assignee
Thales Sa
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 Thales Sa filed Critical Thales Sa
Publication of IN2012DE00519A publication Critical patent/IN2012DE00519A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/005—Testing of reflective surfaces, e.g. mirrors
    • 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
    • G02B17/0605—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror using two curved mirrors
    • G02B17/061—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror 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
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors

Abstract

The general field of the invention is that of the optical checking of optical instruments of telescope type. The instrument (100) comprises an optical objective (110), a photo-detection housing (120) arranged at the focus of said optical objective and at least one light source (121) arranged in the vicinity of said photo-detection housing, the optical pupil of the optical objective having a first diameter. The checking means essentially comprise a plane mirror (130) having a second diameter that is smaller than the first diameter and means making it possible to arrange this plane mirror in such a way that the image of the light source given by the optical objective and reflected by said plane mirror is focused on the photo-detection housing, means for analyzing said image received making it possible to determine the optical quality of the telescope. The plane mirror may be associated with an autonomous checking bench. It may also form part of the telescope and be incorporated into the protection hood (140) for the optic.
IN519DE2012 2011-02-24 2012-02-23 IN2012DE00519A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1100549A FR2972051B1 (en) 2011-02-24 2011-02-24 SIMPLIFIED CONTROL BENCH OF SELF-CONTROLLED TELESCOPES AND TELESCOPES

Publications (1)

Publication Number Publication Date
IN2012DE00519A true IN2012DE00519A (en) 2015-06-05

Family

ID=45569531

Family Applications (1)

Application Number Title Priority Date Filing Date
IN519DE2012 IN2012DE00519A (en) 2011-02-24 2012-02-23

Country Status (6)

Country Link
US (1) US8670113B2 (en)
EP (1) EP2492659B1 (en)
JP (1) JP6117473B2 (en)
CA (1) CA2768414C (en)
FR (1) FR2972051B1 (en)
IN (1) IN2012DE00519A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3011089B1 (en) * 2013-09-20 2016-12-02 Thales Sa TELESCOPE HAVING INTERNAL FOCAL ADJUSTMENT MEANS
FR3074306B1 (en) * 2017-11-28 2020-06-12 Thales OBSERVATION INSTRUMENT COMPRISING A MIRROR SENSOR MOUNTED ON A STAR VIEWFINDER

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5410408A (en) * 1993-12-22 1995-04-25 Hughes Aircraft Company Optical arrangement for performing null testing of aspheric surfaces including reflective/diffractive optics
FR2722571B1 (en) * 1994-07-12 1996-10-04 Aerospatiale METHOD FOR CHARACTERIZING AN OPTICAL INSTRUMENT BY SELF-COLLIMATION AND AN INSTRUMENT FOR IMPLEMENTING IT
JP4140684B2 (en) * 2000-11-28 2008-08-27 三菱電機株式会社 Optical system deviation estimation apparatus, optical system deviation adjustment apparatus, optical system deviation estimation method, and optical system deviation adjustment method
US6924899B2 (en) * 2002-05-31 2005-08-02 Optical Physics Company System for measuring wavefront tilt in optical systems and method of calibrating wavefront sensors
CA2424023C (en) * 2003-03-28 2008-10-14 Institut National D'optique Method and system for characterizing aspheric surfaces of optical elements
JP2007085788A (en) * 2005-09-20 2007-04-05 Nikon Corp Hartmann sensor
CN100449260C (en) * 2007-01-17 2009-01-07 哈尔滨工业大学 Method for precision measuring space offset of telephotolens and eyepiece using interferometer
FR2920536B1 (en) * 2007-08-29 2010-03-12 Thales Sa DEVICE FOR MEASURING THE MODULATION TRANSFER FUNCTION OF LARGE DIMENSIONAL OPTIC INSTRUMENTS
CN101251436A (en) * 2008-03-28 2008-08-27 中国科学院上海技术物理研究所 On-line verification method for processing cassegrain two-mirror optics system
FR2938933B1 (en) 2008-11-25 2011-02-11 Thales Sa SPACE OPTICAL SYSTEM COMPRISING MEANS OF ACTIVE CONTROL OF OPTICS
JP5402011B2 (en) * 2009-01-20 2014-01-29 株式会社ニコン Optical performance evaluation device
US8511842B1 (en) * 2010-03-15 2013-08-20 Exelis, Inc. Eddy current based mirror wavefront control

Also Published As

Publication number Publication date
US20130057851A1 (en) 2013-03-07
EP2492659A1 (en) 2012-08-29
FR2972051A1 (en) 2012-08-31
CN102680209A (en) 2012-09-19
JP6117473B2 (en) 2017-04-19
US8670113B2 (en) 2014-03-11
EP2492659B1 (en) 2019-12-25
FR2972051B1 (en) 2013-08-16
CA2768414A1 (en) 2012-08-24
JP2012177920A (en) 2012-09-13
CA2768414C (en) 2019-04-02

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