# Non-polarizing Cube Half Mirrors

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Reference number: OSE-NPCH-10-2660

Half mirrors have a uniform 1:1 ratio of reflection and transmission for both linearly polarized light and normal light source.

Reference number: OSE-NPCH-10-2660

Half mirrors have a uniform 1:1 ratio of reflection and transmission for both linearly polarized light and normal light source.

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Description

**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coating Four surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions (Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions (Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions (Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

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**Wavelength Range [nm]:**266**A=B=C [mm]:**10**Material:**Synthetic fused sillica**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**266**A=B=C [mm]:**15**Material:**Synthetic fused sillica**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**266**A=B=C [mm]:**20**Material:**Synthetic fused sillica**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**5**A=B=C [mm]:**10**Material:**Synthetic fused sillica**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

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**Wavelength Range [nm]:**405**A=B=C [mm]:**10**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

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**Wavelength Range [nm]:**514.5**A=B=C [mm]:**10**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

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**Wavelength Range [nm]:**532**A=B=C [mm]:**10**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**532**A=B=C [mm]:**15**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

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**Wavelength Range [nm]:**632.8**A=B=C [mm]:**5**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**632.8**A=B=C [mm]:**10**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

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**Wavelength Range [nm]:**670**A=B=C [mm]:**15**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**670**A=B=C [mm]:**20**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**780**A=B=C [mm]:**10**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**780**A=B=C [mm]:**15**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**780**A=B=C [mm]:**20**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**830**A=B=C [mm]:**10**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**830**A=B=C [mm]:**15**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**830**A=B=C [mm]:**20**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**1064**A=B=C [mm]:**10**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**1064**A=B=C [mm]:**15**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**1064**A=B=C [mm]:**20**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**1300**A=B=C [mm]:**10**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**1300**A=B=C [mm]:**15**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**1300**A=B=C [mm]:**20**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**1550**A=B=C [mm]:**10**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**1550**A=B=C [mm]:**15**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)

**Wavelength Range [nm]:**1550**A=B=C [mm]:**20**Material:**BK7**Surface flatness of substrate:**λ/4**Beam Deviation:**5**Coating:**Hypotenuse surface ; Dielectric multilayer coatingFour surfaces ; Multilayer antireflection coating**Incident angle [°]:**0**Divergence ratio (reflectance : transmittance):**1:1**Laser Damage Threshold [J/cm2] :**0,3**Surface Quality (Scratch-Dig):**20-10**Clear aperture:**Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm) Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)Circle that inscribed in a square of 85% of the dimensions(Circle inscribed in a square of 80% of the dimensions , in case of 5 and 7mm)