- Home
- About Us
-
Products & Services
产品中心Product Center
- Dichoric filter coatings (LWPF,SWPF)
- Broadband polarization beamspllitter coatings on cube(BPBS)
- V type anti-reflective coatings (SVAR)
- Broadband beamspllitter coatings on cube(BCBS)
- All-dielectrich hight reflective coatings(DHRM)
- Broadband beamspllitter coatings on plate(BFBS)
- Dual band anti-reflective coatings(DBAR)
- high efficient broadband anti-reflective coatings(BBAR)
- Contact Us
- Company News
Search
- Standard products
- BK7 Lenses Fused Silica Lenses Infrared Lenses Achromatic Lenses Laser Optics Windows Mirrors Magnifier
- Precision optical compoments
- Spherical Lens Achromatic Lens Ball Lens IR Lens Aspheric Lens Prism Mirror Optical Filter Window Cylindrical Lens Lens Assembly Rod Lens Test Plates
- Coatings
- Dichoric filter coatings (LWPF,SWPF)Broadband polarization beamspllitter coatings on cube(BPBS)V type anti-reflective coatings (SVAR)Broadband beamspllitter coatings on cube(BCBS)All-dielectrich hight reflective coatings(DHRM)Broadband beamspllitter coatings on plate(BFBS)Dual band anti-reflective coatings(DBAR)high efficient broadband anti-reflective coatings(BBAR)
BK7 WindowsPrecision optical compoments
Optical windows are used to allow optical radiation to pass from one environment to another without allowing other elements of these environments to mix. And it does not change the wavelength distribution of the beam, the transmitted wavefront, nor does it scatter any light away from the beam.
Alpha Optics’ BK 7 parallel windows feature low distortion, low scatter, and excellent parallelism for laser and non-laser applications.
Specifications:
Material: BK7 grade A optical glass
Diametre Tolerance: +0.0, -0.15mm
Thinkness Tolerance: +/-0.2mm
Clear Aperture: >85% of diametre
Parallelism: <1 arc minute(Standard), <10 arc seconds(Precision)Surface Quality: 60-40 scratch and dig(Standard), 10-5scratch and dig(Precision)
Flatness: λ/4 @632.8nm(Standard), λ/10 @632.8nm(Precision)
Wavefront Distortion: λ/4 @632.8nm(Standard), λ/10 @632.8nm(Precision)
Bevel.: 0.25mmx45deg
