FR3118209B1 - Method for adjusting an optical device and diffraction plate - Google Patents

Method for adjusting an optical device and diffraction plate Download PDF

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Publication number
FR3118209B1
FR3118209B1 FR2013973A FR2013973A FR3118209B1 FR 3118209 B1 FR3118209 B1 FR 3118209B1 FR 2013973 A FR2013973 A FR 2013973A FR 2013973 A FR2013973 A FR 2013973A FR 3118209 B1 FR3118209 B1 FR 3118209B1
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FR
France
Prior art keywords
adjusting
diffraction plate
optical device
optical
diffraction
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.)
Active
Application number
FR2013973A
Other languages
French (fr)
Other versions
FR3118209A1 (en
Inventor
Miguel Boutonne
Geoffrey Balle
François Riguet
Rémi Ducos
Mathieu Balmadier
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.)
Safran Electronics and Defense SAS
Original Assignee
Safran Electronics and Defense SAS
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 Safran Electronics and Defense SAS filed Critical Safran Electronics and Defense SAS
Priority to FR2013973A priority Critical patent/FR3118209B1/en
Publication of FR3118209A1 publication Critical patent/FR3118209A1/en
Application granted granted Critical
Publication of FR3118209B1 publication Critical patent/FR3118209B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
    • G02B5/1819—Plural gratings positioned on the same surface, e.g. array of gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
    • G02B27/4255—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application for alignment or positioning purposes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/003—Alignment of optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B2005/1804—Transmission gratings

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)

Abstract

L’invention concerne un procédé de réglage d’un dispositif optique  comportant les étapes suivantes :- montage (100) d’une plaque de diffraction sur une monture; - émission (102) d’un faisceau lumineux ;- acquisition (104) d’une image par un ensemble de capteurs, ladite image comportant une première, une deuxième, une troisième et une quatrième lignes droites de diffraction ;- déplacement (106) de l’ensemble de capteurs le long de l’axe optique jusqu’à ce que la deuxième, la troisième et la quatrième lignes droites se coupent en un point  ;- rotation (108) de l’ensemble de capteurs autour de l’axe optique ;- rotation (112) de l’ensemble de capteurs autour d’un axe vertical. L’invention concerne également un procédé d’harmonisation une plaque de diffraction et un système optique. Figure à publier avec l’abrégé : Figure 3The invention relates to a method for adjusting an optical device comprising the following steps:- mounting (100) of a diffraction plate on a mount; - emission (102) of a light beam; - acquisition (104) of an image by a set of sensors, said image comprising a first, a second, a third and a fourth straight diffraction lines; - movement (106) of the sensor assembly along the optical axis until the second, third and fourth straight lines intersect at a point; - rotation (108) of the sensor assembly around the axis optical;- rotation (112) of the set of sensors around a vertical axis. The invention also relates to a method for harmonizing a diffraction plate and an optical system. Figure to be published with the abstract: Figure 3

FR2013973A 2020-12-22 2020-12-22 Method for adjusting an optical device and diffraction plate Active FR3118209B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2013973A FR3118209B1 (en) 2020-12-22 2020-12-22 Method for adjusting an optical device and diffraction plate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2013973 2020-12-22
FR2013973A FR3118209B1 (en) 2020-12-22 2020-12-22 Method for adjusting an optical device and diffraction plate

Publications (2)

Publication Number Publication Date
FR3118209A1 FR3118209A1 (en) 2022-06-24
FR3118209B1 true FR3118209B1 (en) 2023-10-20

Family

ID=76375100

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2013973A Active FR3118209B1 (en) 2020-12-22 2020-12-22 Method for adjusting an optical device and diffraction plate

Country Status (1)

Country Link
FR (1) FR3118209B1 (en)

Also Published As

Publication number Publication date
FR3118209A1 (en) 2022-06-24

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