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Windows

Optical windows are optical glass composed of relatively parallel ground and polished surfaces. It is used to isolate two physical environments and allow light to pass through.
Projection Imaging Measuring

Product introduction

  • Optical windows are optical glass composed of relatively parallel ground and polished surfaces. It is used to isolate two physical environments and allow light to pass through. It is often used in projection systems, imaging systems, and optical measurement systems. Dayoptics provides various types of windows, and customized windows.

    Specification BK7 Windows Fused Silica Windows Sapphire
    Diameter Tolerance +0.0,-0.1mm +0.0,-0.1mm +0.0,-0.2mm
    Thickness Tolerance +/-0.2mm +/-0.2mm +/-0.2mm
    Clear Aperture >80% >80% >85%
    Parallelism

    1′(Standard)

    10″(High Precision)

    1′(Standard)

    10″(High Precision

    1′
    Surface Quality

    60/40(Standard)

    20/10(High Precision

    60/40(Standard) 60/40(Standard)

    Wavefront

    Distortion

    λ/ 4(Standard)

    λ/10(High Precision)per 25mm@633nm

    λ/ 4(Standard)

    λ/10(High Precision)per 25mm@633nm


    λ@633nm

    Bevel 0.25mm*45° 0.25mm*45° 0.25mm*45°
    Coating Uncoated Uncoated Uncoated



    BK7 Windows

    Part No. Diameter(mm) Thickness(mm)
    WIN0101 10.0 3.0
    WIN0102 12.7 3.0
    WIN0103 25.4 3.0
    WIN0104 10.0 6.35
    WIN0105 12.7 6.35
    WIN0106 25.4 6.35


    Fused Silica Windows

    Part No. Diameter(mm) Thickness(mm)
    WIN0201 10.0 3.0
    WIN0202 12.7 3.0
    WIN0203 25.4 3.0
    WIN0204 10.0 6.35
    WIN0205 12.7 6.35
    WIN0206 25.4 6.35



    Sapphire Windows

    Part No. Diameter(mm) Thickness(mm)
    WIN0301 5.5 0.5
    WIN0302 8.5 0.5
    WIN0303 9.5 0.5
    WIN0304 10 1
    WIN0305 12.7 1
    WIN0306 25.4 1


    BK7 windows
    Fused silica windows
    Sapphire windows

    Dimensional Tolerance

    +0.0 ,-0.1mm

    +0.0 ,-0.1mm

     

    Thickness Tolerance

    +/-0.2mm

    +/-0.2mm

     

    Effective Caliber

    >80%

    >80%

    >85%

    Parallelism

    1’(Standard)10"

    High PrecisionX )

    1’(Standard)10"

    High PrecisionX )

    1’

    Smoothness

    60/40(   Standard)(20/10(HighPrecision)

    60/40( Standard)

    60/40( Standard)

    Wavefront Distortion

    λ/4(Standard) λ/10 ( High Precision )

    per  25mm@633nm

    λ/4(Standard)λ/10 ( High Precision ) 

     per  25mm@633nm

    λ@633nm

    Chamfer

    <0.25mm*45°

    <0.25mm*45°

    <0.25mm*45°

    Coating

    Uncoated 

    Uncoated 

    Uncoated 


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+86 731 8705 1588

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