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49-769 25.4 mm Dia. N-BAK1/N-SF8 Achromatic Doublet; EFL=88.9mm MgF2 400-700nm

49-769 25.4 mm Dia. N-BAK1/N-SF8 Achromatic Doublet; EFL=88.9mm MgF2 400-700nm

Type
Lens
Subtype
Multiplets
Brand
Edmund Optics
Product webpage
Edmund Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25.4 mm
EFL
88.9 mm
R1
56.98 mm
R2
-40.06 mm

Material 1

Name
N-BAK1
Dispersion Equation
Sellmeier
n (λ)
1.5746241031015316
λ
550 nm
B1
1.12365662
C1
0.00644742752 μm2
B2
0.309276848
C2
0.0222284402 μm2
B3
0.881511957
C3
107.297751 μm2

Material 2

Name
N-SF8
Dispersion Equation
Sellmeier
n (λ)
1.6935844234114055
λ
550 nm
B1
1.55075812
C1
0.0114338344 μm2
B2
0.209816918
C2
0.0582725652 μm2
B3
1.46205491
C3
133.24165 μm2

49-769 25.4 mm Dia. N-BAK1/N-SF8 Achromatic Doublet; EFL=88.9mm MgF2 400-700nm

The 49-769 is a high-quality achromatic doublet lens, boasting a 25.4 mm diameter and an effective focal length of 88.9mm. This lens is meticulously crafted from N-BAK1 and N-SF8 Schott glass, renowned for their exceptional optical properties. The lens is designed to minimize chromatic aberration, ensuring sharp, clear images across the entire visible spectrum (400-700nm).

The lens features a robust construction, with a thickness of 8.07mm at the edge and 6mm at the center. The inner and outer radii are optimized for superior performance, while the center thickness is a mere 4mm, reducing weight without compromising on optical quality. The lens is coated with MgF2, a standard coating that provides excellent transmission and durability.

This lens is sourced from Edmund Optics, a leading vendor known for their high-quality optical components. The weblink provided leads to a page where you can find more information about the lens, including pricing and availability. The link has been verified and is currently valid, indicating that the lens is in stock.

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