Variable curvature mirror (VCM) can change its curvature radius dynamically and is usually used to correct the defocus and spherical aberration caused by thermal lens effect to improve the output beam quality of high power solid-state laser. Recently, the probable application of VCM in realizing non-moving element optical zoom imaging in visible band has been paid much attention. The basic requirement for VCM lies in that it should provide a large enough saggitus variation and still maintains a high enough surface figure at the same time. Therefore in this manuscript, by combing the pressurization based actuation with a variable thickness mirror design, the purpose of obtaining large saggitus variation and maintaining quite good surface figure accuracy at the same time could be achieved. A prototype zoom mirror with diameter of 120mm and central thickness of 8mm is designed, fabricated and tested. Experimental results demonstrate that the zoom mirror having an initial surface figure accuracy superior to 1/80λ could provide bigger than 36um saggitus variation and after finishing the curvature variation its surface figure accuracy could still be superior to 1/40λ with the spherical aberration removed, which proves that the effectiveness of the theoretical design.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Variable curvature mirror having variable thickness: design and fabrication


    Beteiligte:
    Zhao, Hui (Autor:in) / Xie, Xiaopeng (Autor:in) / Xu, Liang (Autor:in) / Ding, Jiaoteng (Autor:in) / Shen, Le (Autor:in) / Gong, Jie (Autor:in)

    Kongress:

    AOPC 2017: Space Optics and Earth Imaging and Space Navigation ; 2017 ; Beijing,China


    Erschienen in:

    Proc. SPIE ; 10463


    Erscheinungsdatum :

    2017-10-24





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Variable curvature wiper

    HOUCK THOMAS E / GOBART JAMES G | Europäisches Patentamt | 2021

    Freier Zugriff

    VARIABLE CURVATURE WIPER

    HOUCK THOMAS E / GOBART JAMES G | Europäisches Patentamt | 2020

    Freier Zugriff

    Vehicle seat tubing having variable wall thickness

    LE GARY TIEN / KRIKORIAN ARAM ARIS | Europäisches Patentamt | 2019

    Freier Zugriff

    Display device having a variable thickness covering

    MOELLER JOCHEN / KAEPPELER THOMAS / GONZALEZ HUMBERTO | Europäisches Patentamt | 2023

    Freier Zugriff