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N-BK7, BiConcave Lenses (AR 750-1550nm)

SLB-B-N-IR2

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N-BK7, BiConcave Lenses (AR 750-1550nm)
Out of stock
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SLB-B-N-IR2
These biconcave lenses are Coated 750-1550nm.They are used when a very high negative power is required. They can be used in a multi-element system or alone to produce a diverging cone of virtual image.
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details
SLB-10B-15NIR2
10mm −14.7mm
6-12 weeks
€68.10
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ10mm
Focal length f −14.7mm
Edge thickness te 3.6mm
Center thickness tc 2mm
Back focal length fb −15.3mm
Radius of curvature r 15.57mm
Centration ＜1′
details
SLB-25.4B-40NIR2
25.4mm −39.7mm
6-12 weeks
€97.60
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25.4mm
Focal length f −39.7mm
Edge thickness te 6mm
Center thickness tc 2mm
Back focal length fb −40.4mm
Radius of curvature r 41.52mm
Centration ＜1′
details
SLB-10B-30NIR2
10mm −29.7mm
6-12 weeks
€65.20
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ10mm
Focal length f −29.7mm
Edge thickness te 2.8mm
Center thickness tc 2mm
Back focal length fb −30.3mm
Radius of curvature r 31.14mm
Centration ＜1′
details
SLB-25.4B-70NIR2
25.4mm −69.7mm
6-12 weeks
€89.30
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25.4mm
Focal length f −69.7mm
Edge thickness te 4.2mm
Center thickness tc 2mm
Back focal length fb −70.4mm
Radius of curvature r 72.66mm
Centration ＜1′
details
SLB-12.7B-10NIR2
12.7mm −9.7mm
6-12 weeks
€70.00
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ12.7mm
Focal length f −9.7mm
Edge thickness te 6.3mm
Center thickness tc 2mm
Back focal length fb −10.3mm
Radius of curvature r 10.38mm
Centration ＜1′
details
SLB-25.4B-150NIR2
25.4mm −149.7mm
6-12 weeks
€81.10
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25.4mm
Focal length f −149.7mm
Edge thickness te 3mm
Center thickness tc 2mm
Back focal length fb −150.4mm
Radius of curvature r 155.7mm
Centration ＜1′
details
SLB-12.7B-25NIR2
12.7mm −24.7mm
6-12 weeks
€66.20
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ12.7mm
Focal length f −24.7mm
Edge thickness te 3.6mm
Center thickness tc 2mm
Back focal length fb −25.3mm
Radius of curvature r 25.95mm
Centration ＜1′
details
SLB-30B-35NIR2
30mm −34.7mm
6-12 weeks
€109.50
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ30mm
Focal length f −34.7mm
Edge thickness te 8.5mm
Center thickness tc 2mm
Back focal length fb −35.3mm
Radius of curvature r 36.33mm
Centration ＜1′
details
SLB-15B-25NIR2
15mm −24.7mm
1 week
€73.40
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ15mm
Focal length f −24.7mm
Edge thickness te 4.2mm
Center thickness tc 2mm
Back focal length fb −25.3mm
Radius of curvature r 25.95mm
Centration ＜1′
details
SLB-30B-100NIR2
30mm −99.7mm
6-12 weeks
€83.70
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ30mm
Focal length f −99.7mm
Edge thickness te 4.2mm
Center thickness tc 2mm
Back focal length fb −100.3mm
Radius of curvature r 103.8mm
Centration ＜1′
details
SLB-15B-50NIR2
15mm −49.7mm
6-12 weeks
€70.90
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ15mm
Focal length f −49.7mm
Edge thickness te 3.1mm
Center thickness tc 2mm
Back focal length fb −50.3mm
Radius of curvature r 51.9mm
Centration ＜1′
details
SLB-40B-100NIR2
40mm −99.7mm
6-12 weeks
€113.90
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ40mm
Focal length f −99.7mm
Edge thickness te 5.9mm
Center thickness tc 2mm
Back focal length fb −100.3mm
Radius of curvature r 103.8mm
Centration ＜1′
details
SLB-20B-30NIR2
20mm −29.7mm
1 week
€76.20
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ20mm
Focal length f −29.7mm
Edge thickness te 5.3mm
Center thickness tc 2mm
Back focal length fb −30.3mm
Radius of curvature r 31.14mm
Centration ＜1′
details
SLB-50B-70NIR2
50mm −69.5mm
1 week
€136.20
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ50mm
Focal length f −69.5mm
Edge thickness te 11.9mm
Center thickness tc 3mm
Back focal length fb −70.5mm
Radius of curvature r 72.66mm
Centration ＜1′
details
SLB-25B-25NIR2
25mm −24.7mm
6-12 weeks
€102.90
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25mm
Focal length f −24.7mm
Edge thickness te 8.4mm
Center thickness tc 2mm
Back focal length fb −25.3mm
Radius of curvature r 25.95mm
Centration ＜1′
details
SLB-50.8B-60NIR2
50.8mm −59.5mm
6-12 weeks
€142.60
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ50.8mm
Focal length f −59.5mm
Edge thickness te 13.8mm
Center thickness tc 3mm
Back focal length fb −60.5mm
Radius of curvature r 62.28mm
Centration ＜1′
details
SLB-25B-40NIR2
25mm −39.7mm
6-12 weeks
€97.60
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25mm
Focal length f −39.7mm
Edge thickness te 5.9mm
Center thickness tc 2mm
Back focal length fb −40.3mm
Radius of curvature r 41.52mm
Centration ＜1′
details
SLB-50.8B-200NIR2
50.8mm −199.5mm
6-12 weeks
€129.40
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ50.8mm
Focal length f −199.5mm
Edge thickness te 6.1mm
Center thickness tc 3mm
Back focal length fb −200.5mm
Radius of curvature r 207.6mm
Centration ＜1′
details
SLB-25B-70NIR2
25mm −69.7mm
6-12 weeks
€89.30
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25mm
Focal length f −69.7mm
Edge thickness te 4.2mm
Center thickness tc 2mm
Back focal length fb −70.3mm
Radius of curvature r 72.66mm
Centration ＜1′
details
SLB-25.4B-25NIR2
25.4mm −24.7mm
6-12 weeks
€102.90
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25.4mm
Focal length f −24.7mm
Edge thickness te 8.6mm
Center thickness tc 2mm
Back focal length fb −25.4mm
Radius of curvature r 25.95mm
Centration ＜1′
details
SLB-10B-20NIR2
10mm −19.7mm
6-12 weeks
€66.20
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ10mm
Focal length f −19.7mm
Edge thickness te 3.2mm
Center thickness tc 2mm
Back focal length fb −20.3mm
Radius of curvature r 20.76mm
Centration ＜1′
details
SLB-25.4B-50NIR2
25.4mm −49.7mm
6-12 weeks
€95.50
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25.4mm
Focal length f −49.7mm
Edge thickness te 5.2mm
Center thickness tc 2mm
Back focal length fb −50.4mm
Radius of curvature r 51.9mm
Centration ＜1′
details
SLB-10B-40NIR2
10mm −39.7mm
6-12 weeks
€64.30
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ10mm
Focal length f −39.7mm
Edge thickness te 2.6mm
Center thickness tc 2mm
Back focal length fb −40.3mm
Radius of curvature r 41.52mm
Centration ＜1′
details
SLB-25.4B-80NIR2
25.4mm −79.7mm
6-12 weeks
€86.40
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25.4mm
Focal length f −79.7mm
Edge thickness te 4mm
Center thickness tc 2mm
Back focal length fb −80.4mm
Radius of curvature r 83.04mm
Centration ＜1′
details
SLB-12.7B-15NIR2
12.7mm −14.7mm
6-12 weeks
€68.10
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ12.7mm
Focal length f −14.7mm
Edge thickness te 4.7mm
Center thickness tc 2mm
Back focal length fb −15.3mm
Radius of curvature r 15.57mm
Centration ＜1′
details
SLB-25.4B-200NIR2
25.4mm −199.7mm
6-12 weeks
€81.10
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25.4mm
Focal length f −199.7mm
Edge thickness te 2.8mm
Center thickness tc 2mm
Back focal length fb −200.4mm
Radius of curvature r 207.6mm
Centration ＜1′
details
SLB-15B-15NIR2
15mm −14.7mm
6-12 weeks
€75.20
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ15mm
Focal length f −14.7mm
Edge thickness te 5.9mm
Center thickness tc 2mm
Back focal length fb −15.3mm
Radius of curvature r 15.57mm
Centration ＜1′
details
SLB-30B-40NIR2
30mm −39.7mm
6-12 weeks
€106.70
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ30mm
Focal length f −39.7mm
Edge thickness te 7.6mm
Center thickness tc 2mm
Back focal length fb −40.3mm
Radius of curvature r 41.52mm
Centration ＜1′
details
SLB-15B-30NIR2
15mm −29.7mm
6-12 weeks
€73.00
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ15mm
Focal length f −29.7mm
Edge thickness te 3.8mm
Center thickness tc 2mm
Back focal length fb −30.3mm
Radius of curvature r 31.14mm
Centration ＜1′
details
SLB-40B-40NIR2
40mm −39.7mm
6-12 weeks
€132.30
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ40mm
Focal length f −39.7mm
Edge thickness te 12.3mm
Center thickness tc 2mm
Back focal length fb −40.3mm
Radius of curvature r 41.52mm
Centration ＜1′
details
SLB-20B-20NIR2
20mm −19.7mm
6-12 weeks
€77.30
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ20mm
Focal length f −19.7mm
Edge thickness te 7.1mm
Center thickness tc 2mm
Back focal length fb −20.3mm
Radius of curvature r 20.76mm
Centration ＜1′
details
SLB-50B-50NIR2
50mm −49.5mm
6-12 weeks
€148.80
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ50mm
Focal length f −49.5mm
Edge thickness te 15.8mm
Center thickness tc 3mm
Back focal length fb −50.5mm
Radius of curvature r 51.9mm
Centration ＜1′
details
SLB-20B-40NIR2
20mm −39.7mm
6-12 weeks
€76.20
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ20mm
Focal length f −39.7mm
Edge thickness te 4.4mm
Center thickness tc 2mm
Back focal length fb −40.3mm
Radius of curvature r 41.52mm
Centration ＜1′
details
SLB-50B-100NIR2
50mm −99.5mm
6-12 weeks
€129.40
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ50mm
Focal length f −99.5mm
Edge thickness te 9.1mm
Center thickness tc 3mm
Back focal length fb −100.5mm
Radius of curvature r 103.8mm
Centration ＜1′
details
SLB-25B-30NIR2
25mm −29.7mm
6-12 weeks
€102.00
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25mm
Focal length f −29.7mm
Edge thickness te 7.2mm
Center thickness tc 2mm
Back focal length fb −30.3mm
Radius of curvature r 31.14mm
Centration ＜1′
details
SLB-50.8B-100NIR2
50.8mm −99.5mm
6-12 weeks
€129.40
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ50.8mm
Focal length f −99.5mm
Edge thickness te 9.3mm
Center thickness tc 3mm
Back focal length fb −100.5mm
Radius of curvature r 103.8mm
Centration ＜1′
details
SLB-25B-50NIR2
25mm −49.7mm
6-12 weeks
€95.50
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25mm
Focal length f −49.7mm
Edge thickness te 5.1mm
Center thickness tc 2mm
Back focal length fb −50.3mm
Radius of curvature r 51.9mm
Centration ＜1′
details
SLB-50.8B-250NIR2
50.8mm −249.5mm
6-12 weeks
€129.40
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ50.8mm
Focal length f −249.5mm
Edge thickness te 5.5mm
Center thickness tc 3mm
Back focal length fb −250.5mm
Radius of curvature r 259.5mm
Centration ＜1′
details
SLB-25B-80NIR2
25mm −79.7mm
6-12 weeks
€86.40
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25mm
Focal length f −79.7mm
Edge thickness te 4mm
Center thickness tc 2mm
Back focal length fb −80.3mm
Radius of curvature r 83.04mm
Centration ＜1′
details
SLB-10B-10NIR2
10mm −9.7mm
6-12 weeks
€70.00
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ10mm
Focal length f −9.7mm
Edge thickness te 4.6mm
Center thickness tc 2mm
Back focal length fb −10.3mm
Radius of curvature r 10.38mm
Centration ＜1′
details
SLB-25.4B-30NIR2
25.4mm −29.7mm
6-12 weeks
€102.00
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25.4mm
Focal length f −29.7mm
Edge thickness te 7.4mm
Center thickness tc 2mm
Back focal length fb −30.4mm
Radius of curvature r 31.14mm
Centration ＜1′
details
SLB-10B-25NIR2
10mm −24.7mm
6-12 weeks
€66.20
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ10mm
Focal length f −24.7mm
Edge thickness te 3mm
Center thickness tc 2mm
Back focal length fb −25.3mm
Radius of curvature r 25.95mm
Centration ＜1′
details
SLB-25.4B-60NIR2
25.4mm −59.7mm
6-12 weeks
€91.80
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25.4mm
Focal length f −59.7mm
Edge thickness te 4.6mm
Center thickness tc 2mm
Back focal length fb −60.4mm
Radius of curvature r 62.28mm
Centration ＜1′
details
SLB-10B-50NIR2
10mm −49.7mm
6-12 weeks
€62.80
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ10mm
Focal length f −49.7mm
Edge thickness te 2.5mm
Center thickness tc 2mm
Back focal length fb −50.3mm
Radius of curvature r 51.9mm
Centration ＜1′
details
SLB-25.4B-100NIR2
25.4mm −99.7mm
6-12 weeks
€81.10
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25.4mm
Focal length f −99.7mm
Edge thickness te 3.6mm
Center thickness tc 2mm
Back focal length fb −100.4mm
Radius of curvature r 103.8mm
Centration ＜1′
details
SLB-12.7B-20NIR2
12.7mm −19.7mm
6-12 weeks
€66.20
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ12.7mm
Focal length f −19.7mm
Edge thickness te 4mm
Center thickness tc 2mm
Back focal length fb −20.3mm
Radius of curvature r 20.76mm
Centration ＜1′
details
SLB-30B-30NIR2
30mm −29.7mm
6-12 weeks
€116.00
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ30mm
Focal length f −29.7mm
Edge thickness te 9.7mm
Center thickness tc 2mm
Back focal length fb −30.3mm
Radius of curvature r 31.14mm
Centration ＜1′
details
SLB-15B-20NIR2
15mm −19.7mm
6-12 weeks
€74.30
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ15mm
Focal length f −19.7mm
Edge thickness te 4.8mm
Center thickness tc 2mm
Back focal length fb −20.3mm
Radius of curvature r 20.76mm
Centration ＜1′
details
SLB-30B-50NIR2
30mm −49.7mm
6-12 weeks
€102.90
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ30mm
Focal length f −49.7mm
Edge thickness te 6.4mm
Center thickness tc 2mm
Back focal length fb −50.3mm
Radius of curvature r 51.9mm
Centration ＜1′
details
SLB-15B-40NIR2
15mm −39.7mm
6-12 weeks
€71.80
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ15mm
Focal length f −39.7mm
Edge thickness te 3.4mm
Center thickness tc 2mm
Back focal length fb −40.3mm
Radius of curvature r 41.52mm
Centration ＜1′
details
SLB-40B-50NIR2
40mm −49.7mm
6-12 weeks
€123.20
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ40mm
Focal length f −49.7mm
Edge thickness te 10mm
Center thickness tc 2mm
Back focal length fb −50.3mm
Radius of curvature r 51.9mm
Centration ＜1′
details
SLB-20B-25NIR2
20mm −24.7mm
6-12 weeks
€77.30
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ20mm
Focal length f −24.7mm
Edge thickness te 6mm
Center thickness tc 2mm
Back focal length fb −25.3mm
Radius of curvature r 25.95mm
Centration ＜1′
details
SLB-50B-60NIR2
50mm −59.5mm
6-12 weeks
€142.60
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ50mm
Focal length f −59.5mm
Edge thickness te 13.5mm
Center thickness tc 3mm
Back focal length fb −60.5mm
Radius of curvature r 62.28mm
Centration ＜1′
details
SLB-20B-50NIR2
20mm −49.7mm
6-12 weeks
€76.20
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ20mm
Focal length f −49.7mm
Edge thickness te 3.9mm
Center thickness tc 2mm
Back focal length fb −50.3mm
Radius of curvature r 51.9mm
Centration ＜1′
details
SLB-50.8B-50NIR2
50.8mm −49.5mm
6-12 weeks
€148.80
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ50.8mm
Focal length f −49.5mm
Edge thickness te 16.3mm
Center thickness tc 3mm
Back focal length fb −50.5mm
Radius of curvature r 51.9mm
Centration ＜1′
details
SLB-25B-35NIR2
25mm −34.7mm
6-12 weeks
€99.50
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25mm
Focal length f −34.7mm
Edge thickness te 6.4mm
Center thickness tc 2mm
Back focal length fb −35.3mm
Radius of curvature r 36.33mm
Centration ＜1′
details
SLB-50.8B-150NIR2
50.8mm −149.5mm
6-12 weeks
€129.40
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ50.8mm
Focal length f −149.5mm
Edge thickness te 7.2mm
Center thickness tc 3mm
Back focal length fb −150.5mm
Radius of curvature r 155.7mm
Centration ＜1′
details
SLB-25B-60NIR2
25mm −59.7mm
6-12 weeks
€91.80
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25mm
Focal length f −59.7mm
Edge thickness te 4.5mm
Center thickness tc 2mm
Back focal length fb −60.3mm
Radius of curvature r 62.28mm
Centration ＜1′
details
SLB-50.8B-300NIR2
50.8mm −299.5mm
6-12 weeks
€129.40
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ50.8mm
Focal length f −299.5mm
Edge thickness te 5.1mm
Center thickness tc 3mm
Back focal length fb −300.5mm
Radius of curvature r 311.4mm
Centration ＜1′
details
SLB-25B-100NIR2
25mm −99.7mm
6-12 weeks
€81.10
Material BK7
Design Wavelength 546.1nm
Refractive index n<sub>e</sub> 1.519
Coating Broadband Multilayer antireflection coating (750 - 1550nm)
Transmmittance > Average 98.5%
Laser Damage Threshold 4J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Clear aperture 85% of the diameter
Surface Quality (Scratch-Dig) 20-10
Wavelength range of Antireflection Coating 750 - 1550nm
Diameter φD φ25mm
Focal length f −99.7mm
Edge thickness te 3.5mm
Center thickness tc 2mm
Back focal length fb −100.3mm
Radius of curvature r 103.8mm
Centration ＜1′

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These biconcave lenses are Coated 750-1550nm.They are used when a very high negative power is required. They can be used in a multi-element system or alone to produce a diverging cone of virtual image.