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69-679 25mm Dia. x 100mm FL; Uncoated; Si Plano-Convex Lens

69-679 25mm Dia. x 100mm FL; Uncoated; Si Plano-Convex Lens

Type
Lens
Subtype
Spherical Lens (Plano-Convex)
Brand
Edmund Optics
Product webpage
Edmund Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25 mm
EFL
100 mm
BFL
99.12 mm
R1
241.76 mm

Material

Name
Silicon
Dispersion Equation
Sellmeier
n (λ)
3.4176022196178844
λ
10600 nm
B1
10.6684293
C1
0.090912191 μm2
B2
0.003043475
C2
1.287660172 μm2
B3
1.54133408
C3
1218816 μm2

69-679 25mm Dia. x 100mm FL; Uncoated; Si Plano-Convex Lens

The 69-679 is a 25mm diameter, 100mm focal length plano-convex lens, sourced from Edmund Optics. This lens is made of silicon, specifically silicon sal vil 1957, and does not have any coating.

The lens's geometry is characterized by a 2.68mm thickness at the edge, increasing slightly to 3mm at the center. The effective focal length (EFL) is 100mm, and the radius of curvature (R1) is 241.76mm. The back focal length (BFL) is 99.12mm, and both the inner and outer radii are 0mm, indicating a flat surface on the opposite side of the convex curve.

This lens is designed for use with a wavelength of 10600nm, making it suitable for various applications in this spectrum range. Its spherical shape allows for a wide range of uses, and its uncoated surface can be advantageous in certain applications where coating might introduce unwanted reflections or interfere with the desired wavelength.

Please note that the lens's uncoated surface may be more susceptible to environmental factors such as dust and moisture, and may require more careful handling and cleaning. Always refer to the vendor's specifications and guidelines for optimal use and maintenance.

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