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89-248 15mm Dia. x 22.5mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm

89-248 15mm Dia. x 22.5mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm

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

Properties

Shape
Circular
Diameter
15 mm
EFL
22.5 mm
BFL
21.29 mm
R1
34.36 mm
R2
-34.36 mm

Material

Name
N-SF11
Dispersion Equation
Sellmeier
n (λ)
1.7847141030246312
λ
587.6 nm
B1
1.73759695
C1
0.013188707 μm2
B2
0.313747346
C2
0.0623068142 μm2
B3
1.89878101
C3
155.23629 μm2

89-248 15mm Dia. x 22.5mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm

The 89-248 is a high-quality double-convex lens, sourced from the renowned optical components manufacturer, Edmund Optics. This lens boasts a diameter of 15mm and a focal length of 22.5mm, making it suitable for a wide range of optical applications.

The lens is crafted from n-sf11 Schott, a high-index glass material known for its excellent optical properties. This material ensures high dispersion and low auto-fluorescence, making it ideal for applications that require high precision and low background noise.

The 89-248 features a YAG-BBAR coating on both the front and back surfaces. This coating, which stands for Yttrium Aluminum Garnet - Broad Band Anti-Reflection, is designed to minimize reflection and maximize transmission across the 500-1100nm wavelength range. This makes the lens particularly suitable for use in systems that operate in the visible to near-infrared spectrum.

The lens geometry is characterized by its double-convex shape, with radii of curvature of 34.36mm for both the front and back surfaces. This shape provides a large acceptance angle and excellent image quality, making the lens ideal for use in imaging systems.

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