VIS Achromatic Doublets

DLB

VIS Achromatic Doublets
In stock
SKU
DLB
Achromatic doublets are cemented achromats made of two different lenses (Low dispersion positive from crown glass and high dispersion negative from flint glass). The difference of dispersion and shape of both lenses are designed to minimize the chromatic aberrations in blue (486.1nm), green (546.1nm) and red (656.3nm). Therefore, these lenses are able to support the entire visible wavelength spectrum.
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Name Diameter φD Focal length Delivery Price Add to cart
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Achromatic Doublet 50.8mm Diameter 120.2mm Focal Length
DLB-50.8-120PM
50.8mm 120.2mm
6-12 weeks
$176.00
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Material BK7, SF2
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ50.8mm
Focal length f 120.2mm
Edge Thickness te 11.2mm
Center Thickness tc 17.7mm
Back focal length fb 111mm
Centration <1′
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Achromatic Doublet 15mm Diameter 30.1mm Focal Length
DLB-15-30PM
15mm 30.1mm
2 weeks
$111.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ15mm
Focal length f 30.1mm
Edge Thickness te 5.7mm
Center Thickness tc 8mm
Back focal length fb 26mm
Centration <1′
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Achromatic Doublet 25mm Diameter 250.8mm Focal Length
DLB-25-250PM
25mm 250.8mm
in stock
$102.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ25mm
Focal length f 250.8mm
Edge Thickness te 5.1mm
Center Thickness tc 5.8mm
Back focal length fb 247.7mm
Centration <1′
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Achromatic Doublet 40mm Diameter 70.3mm Focal Length
DLB-40-70PM
40mm 70.3mm
2 weeks
$185.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ40mm
Focal length f 70.3mm
Edge Thickness te 10.2mm
Center Thickness tc 17.2mm
Back focal length fb 61.7mm
Centration <1′
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Achromatic Doublet 50.8mm Diameter 249.4mm Focal Length
DLB-50.8-250PM
50.8mm 249.4mm
in stock
$148.00
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Material BK7, SF2
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ50.8mm
Focal length f 249.4mm
Edge Thickness te 9mm
Center Thickness tc 12.1mm
Back focal length fb 243.4mm
Centration <1′
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Achromatic Doublet 15mm Diameter 59.9mm Focal Length
DLB-15-60PM
15mm 59.9mm
in stock
$92.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ15mm
Focal length f 59.9mm
Edge Thickness te 4.8mm
Center Thickness tc 5.9mm
Back focal length fb 57mm
Centration <1′
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Achromatic Doublet 25.4mm Diameter 50.1mm Focal Length
DLB-25.4-50PM
25.4mm 50.1mm
in stock
$139.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ25.4mm
Focal length f 50.1mm
Edge Thickness te 7mm
Center Thickness tc 10.9mm
Back focal length fb 44.9mm
Centration <1′
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Achromatic Doublet 40mm Diameter 120mm Focal Length
DLB-40-120PM
40mm 120mm
2 weeks
$139.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ40mm
Focal length f 120mm
Edge Thickness te 8.3mm
Center Thickness tc 12.3mm
Back focal length fb 113.7mm
Centration <1′
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Achromatic Doublet 50.8mm Diameter 500.3mm Focal Length
DLB-50.8-500PM
50.8mm 500.3mm
6-12 weeks
$148.00
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Material BK7, SF2
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ50.8mm
Focal length f 500.3mm
Edge Thickness te 8.1mm
Center Thickness tc 9.6mm
Back focal length fb 495.2mm
Centration <1′
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Achromatic Doublet 15mm Diameter 100mm Focal Length
DLB-15-100PM
15mm 100mm
2 weeks
$74.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ15mm
Focal length f 100mm
Edge Thickness te 4.5mm
Center Thickness tc 5.2mm
Back focal length fb 97.3mm
Centration <1′
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Achromatic Doublet 25.4mm Diameter 80mm Focal Length
DLB-25.4-80PM
25.4mm 80mm
in stock
$111.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ25.4mm
Focal length f 80mm
Edge Thickness te 6.1mm
Center Thickness tc 8.5mm
Back focal length fb 75.9mm
Centration <1′
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Achromatic Doublet 40mm Diameter 199.7mm Focal Length
DLB-40-200PM
40mm −199.7mm
in stock
$130.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ40mm
Focal length f 199.7mm
Edge Thickness te 7.2mm
Center Thickness tc 9.6mm
Back focal length fb 194.8mm
Centration <1′
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Achromatic Doublet 60mm Diameter 170.8mm Focal Length
DLB-60-170PM
60mm 170.8mm
6-12 weeks
-
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Material BK7, SF2
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ60mm
Focal length f 170.8mm
Edge Thickness te 11.4mm
Center Thickness tc 17.7mm
Back focal length fb 161.9mm
Centration <1′
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Achromatic Doublet 20mm Diameter 50.2mm Focal Length
DLB-20-50PM
20mm 50.2mm
in stock
$121.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ20mm
Focal length f 50.2mm
Edge Thickness te 5.7mm
Center Thickness tc 8.1mm
Back focal length fb 46mm
Centration <1′
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Achromatic Doublet 25.4mm Diameter 149.6mm Focal Length
DLB-25.4-150PM
25.4mm 149.6mm
in stock
$102.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ25.4mm
Focal length f 149.6mm
Edge Thickness te 5.4mm
Center Thickness tc 6.7mm
Back focal length fb 146.2mm
Centration <1′
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Achromatic Doublet 40mm Diameter 300.5mm Focal Length
DLB-40-300PM
40mm 300.5mm
in stock
$130.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ40mm
Focal length f 300.5mm
Edge Thickness te 6.7mm
Center Thickness tc 8.3mm
Back focal length fb 296.1mm
Centration <1′
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Achromatic Doublet 60mm Diameter 499.1mm Focal Length
DLB-60-500PM
60mm 499.1mm
6-12 weeks
-
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Material BK7, SF2
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ60mm
Focal length f 499.1mm
Edge Thickness te 8.6mm
Center Thickness tc 10.7mm
Back focal length fb 493.5mm
Centration <1′
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Achromatic Doublet 20mm Diameter 79.9mm Focal Length
DLB-20-80PM
20mm 79.9mm
in stock
$92.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ20mm
Focal length f 79.9mm
Edge Thickness te 5.1mm
Center Thickness tc 6.6mm
Back focal length fb 76.6mm
Centration <1′
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Achromatic Doublet 25.4mm Diameter 222mm Focal Length
DLB-25.4-220PM
25.4mm 222mm
in stock
$102.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ25.4mm
Focal length f 222mm
Edge Thickness te 5.1mm
Center Thickness tc 6mm
Back focal length fb 218.9mm
Centration <1′
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Achromatic Doublet 40mm Diameter 450mm Focal Length
DLB-40-450PM
40mm 450mm
2 weeks
$130.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ40mm
Focal length f 450mm
Edge Thickness te 6.3mm
Center Thickness tc 7.4mm
Back focal length fb 445.5mm
Centration <3′
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Achromatic Doublet 80mm Diameter 200.8mm Focal Length
DLB-80-200PM
80mm 200.8mm
6-12 weeks
-
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Material BK7, SF2
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ80mm
Focal length f 200.8mm
Edge Thickness te 14.7mm
Center Thickness tc 24.3mm
Back focal length fb 188.2mm
Centration <1′
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Achromatic Doublet 10mm Diameter 25mm Focal Length
DLB-10-25PM
10mm 25mm
in stock
$83.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ10mm
Focal length f 25mm
Edge Thickness te 4.9mm
Center Thickness tc 6.1mm
Back focal length fb 22.1mm
Centration <1′
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Achromatic Doublet 20mm Diameter 149.8mm Focal Length
DLB-20-150PM
20mm 149.8mm
2 weeks
$83.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ20mm
Focal length f 149.8mm
Edge Thickness te 4.6mm
Center Thickness tc 5.4mm
Back focal length fb 147mm
Centration <1′
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Achromatic Doublet 30mm Diameter 50.3mm Focal Length
DLB-30-50PM
30mm 50.3mm
in stock
$167.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ30mm
Focal length f 50.3mm
Edge Thickness te 8.6mm
Center Thickness tc 14.1mm
Back focal length fb 43.5mm
Centration <1′
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Achromatic Doublet 50mm Diameter 100.5mm Focal Length
DLB-50-100PM
50mm 100.5mm
6-12 weeks
$185.00
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Material BK7, SF2
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ50mm
Focal length f 100.5mm
Edge Thickness te 12.3mm
Center Thickness tc 19.9mm
Back focal length fb 90mm
Centration <1′
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Achromatic Doublet 80mm Diameter 800.6mm Focal Length
DLB-80-800PM
80mm 800.6mm
6-12 weeks
-
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Material BK7, SF2
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ80mm
Focal length f 800.6mm
Edge Thickness te 9.7mm
Center Thickness tc 12.1mm
Back focal length fb 794.2mm
Centration <1′
i
Achromatic Doublet 10mm Diameter 50mm Focal Length
DLB-10-50PM
10mm 50mm
in stock
$69.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ10mm
Focal length f 50mm
Edge Thickness te 4.4mm
Center Thickness tc 5mm
Back focal length fb 47.5mm
Centration <1′
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Achromatic Doublet 20mm Diameter 220mm Focal Length
DLB-20-220PM
20mm 220mm
in stock
$83.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ20mm
Focal length f 220mm
Edge Thickness te 4.5mm
Center Thickness tc 5mm
Back focal length fb 216.9mm
Centration <3′
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Achromatic Doublet 30mm Diameter 80.3mm Focal Length
DLB-30-80PM
30mm 80.3mm
2 weeks
$130.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ30mm
Focal length f 80.3mm
Edge Thickness te 7.4mm
Center Thickness tc 10.7mm
Back focal length fb 75mm
Centration <1′
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Achromatic Doublet 50mm Diameter 169.8mm Focal Length
DLB-50-170PM
50mm 169.8mm
2 weeks
$157.00
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Material BK7, SF2
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ50mm
Focal length f 169.8mm
Edge Thickness te 10.1mm
Center Thickness tc 14.5mm
Back focal length fb 162.5mm
Centration <1′
i
Achromatic Doublet 100mm Diameter 499.6mm Focal Length
DLB-100-500PM
100mm 499.6mm
6-12 weeks
-
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Material BK7, SF2
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ100mm
Focal length f 499.6mm
Edge Thickness te 15.2mm
Center Thickness tc 21.1mm
Back focal length fb 488.8mm
Centration <1′
i
Achromatic Doublet 10mm Diameter 80.1mm Focal Length
DLB-10-80PM
10mm 80.1mm
in stock
$65.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ10mm
Focal length f 80.1mm
Edge Thickness te 4.2mm
Center Thickness tc 4.6mm
Back focal length fb 77.8mm
Centration <1′
i
Achromatic Doublet 25mm Diameter 40.9mm Focal Length
DLB-25-40PM
25mm 40.9mm
6-12 weeks
$144.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ25mm
Focal length f 40.9mm
Edge Thickness te 7.7mm
Center Thickness tc 12.5mm
Back focal length fb 34.2mm
Centration <1′
i
Achromatic Doublet 30mm Diameter 150mm Focal Length
DLB-30-150PM
30mm 150mm
2 weeks
$111.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ30mm
Focal length f 150mm
Edge Thickness te 6.3mm
Center Thickness tc 8.1mm
Back focal length fb 146mm
Centration <1′
i
Achromatic Doublet 50mm Diameter 249.4mm Focal Length
DLB-50-250PM
50mm 249.4mm
2 weeks
$148.00
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Material BK7, SF2
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ50mm
Focal length f 249.4mm
Edge Thickness te 9.1mm
Center Thickness tc 12.1mm
Back focal length fb 243.4mm
Centration <1′
i
Achromatic Doublet 50mm Diameter 400mm Focal Length
DLB-50-400PM
50mm 400mm
in stock
$148.00
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Material BK7, SF2
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ50mm
Focal length f 400mm
Edge Thickness te 8.3mm
Center Thickness tc 10.2mm
Back focal length fb 394.7mm
Centration <1′
i
Achromatic Doublet 12.7mm Diameter 30mm Focal Length
DLB-12.7-30PM
12.7mm 30mm
in stock
$102.00
Material BK7, SF2
Design wavelength Blue: 486.1nm, Green: 546.1nm, Red: 656.3nm
Coating Broadband Multilayer Antireflection Coating for the Visible
Cement Ultraviolet Hardened Adhesive
Laser Damage Threshold 0.3J/cm2 
(Laser pulse width 10ns, repetition frequency 20Hz)
Surface Quality (Scratch-Dig) 40-20
Diameter φD φ12.7mm
Focal length f 30mm
Edge Thickness te 5.2mm
Center Thickness tc 6.8mm
Back focal length fb 26.7mm
Centration <1′
i
Achromatic Doublet 25mm Diameter 69.9mm Focal Length
DLB-25-70PM