N-BK7, Plano Concave Lenses (AR 400 - 1600nm)

SLB-N-BB

N-BK7, Plano Concave Lenses (AR 400 - 1600nm)
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SKU
SLB-N-BB
This is a N-BK7 lens with a multi-layer anti-reflection coating for the visible to near-infrared range (400-1600 nm).
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25.4mm BK7
4-6 weeks
77,77 €
Focal length f -50 mm
Lens Type Plano Concave Lens
Design wavelength 546.1 nm
Refractive index ne=1.519
Coating Broadband Multilayer antireflection coating ( 400 - 1600 nm )
Wavelength range of Antireflection Coating 400~1600 nm
Transmittance > Average 96.5%
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20−10
Edge thickness te 5.3 mm
Center thickness tc 2 mm
Back focal length fb -51.3 mm
Radius of curvature r 25.95 mm
Centration <1′
Laser Damage Threshold 3 J/cm2 ( Laser pulse width ; 10ns , Repetition frequency ; 20Hz )
12.7mm BK7
4-6 weeks
68,82 €
Focal length f -25 mm
Lens Type Plano Concave Lens
Design wavelength 546.1 nm
Refractive index ne=1.519
Coating Broadband Multilayer antireflection coating ( 400 - 1600 nm )
Wavelength range of Antireflection Coating 400~1600 nm
Transmittance > Average 96.5%
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20−10
Edge thickness te 3.7 mm
Center thickness tc 2 mm
Back focal length fb -26.3 mm
Radius of curvature r 12.98 mm
Centration <1′
Laser Damage Threshold 3 J/cm2 ( Laser pulse width ; 10ns , Repetition frequency ; 20Hz )
30mm BK7
4-6 weeks
74,01 €
Focal length f -100 mm
Lens Type Plano Concave Lens
Design wavelength 546.1 nm
Refractive index ne=1.519
Coating Broadband Multilayer antireflection coating ( 400 - 1600 nm )
Wavelength range of Antireflection Coating 400~1600 nm
Transmittance > Average 96.5%
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20−10
Edge thickness te 4.2 mm
Center thickness tc 2 mm
Back focal length fb -101.3 mm
Radius of curvature r 51.9 mm
Centration <1′
Laser Damage Threshold 3 J/cm2 ( Laser pulse width ; 10ns , Repetition frequency ; 20Hz )
25.4mm BK7
4-6 weeks
74,95 €
Focal length f -100 mm
Lens Type Plano Concave Lens
Design wavelength 546.1 nm
Refractive index ne=1.519
Coating Broadband Multilayer antireflection coating ( 400 - 1600 nm )
Wavelength range of Antireflection Coating 400~1600 nm
Transmittance > Average 96.5%
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20−10
Edge thickness te 3.6 mm
Center thickness tc 2 mm
Back focal length fb -101.3 mm
Radius of curvature r 51.9 mm
Centration <1′
Laser Damage Threshold 3 J/cm2 ( Laser pulse width ; 10ns , Repetition frequency ; 20Hz )
30mm BK7
4-6 weeks
79,20 €
Focal length f -50 mm
Lens Type Plano Concave Lens
Design wavelength 546.1 nm
Coating Broadband Multilayer antireflection coating ( 400 - 1600 nm )
Wavelength range of Antireflection Coating 400~1600 nm
Transmittance > Average 96.5%
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20−10
Edge thickness te 6.8 mm
Center thickness tc 2 mm
Back focal length fb -51.3 mm
Radius of curvature r 25.95 mm
Centration <1′
Laser Damage Threshold 3 J/cm2 ( Laser pulse width ; 10ns , Repetition frequency ; 20Hz )

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