45-826 15 mm Dia. N-LAK22/N-SF6 Achromatic Doublet; EFL=25mm NIR II 750-1550nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 15 mm
- EFL
- 25 mm
- R1
- 14.94 mm
- R2
- -14.94 mm
Material 1
- Name
- N-LAK22
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6536179449828925
- λ
- 550 nm
- B1
- 1.14229781
- C1
- 0.00585778594 μm2
- B2
- 0.535138441
- C2
- 0.0198546147 μm2
- B3
- 1.04088385
- C3
- 100.834017 μm2
Material 2
- Name
- N-SF6
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.811866267147773
- λ
- 550 nm
- B1
- 1.77931763
- C1
- 0.0133714182 μm2
- B2
- 0.338149866
- C2
- 0.0617533621 μm2
- B3
- 2.08734474
- C3
- 174.01759 μm2
45-826 15 mm Dia. N-LAK22/N-SF6 Achromatic Doublet; EFL=25mm NIR II 750-1550nm
The 45-826 is a high-quality Achromatic Doublet Lens, boasting a 15 mm diameter and effective focal length (EFL) of 25mm, specifically designed for use within the Near-Infrared II (NIR II) spectrum of 750-1550nm. This lens is sourced from the reputable optical vendor, Edmund Optics, and is available for purchase directly from their website.
The lens is constructed from two distinct materials, N-LAK22 and N-SF6, both from Schott, ensuring excellent optical performance. The lens features a multiplet geometry, with a thickness edge of 7.1mm, and a center thickness of 5.65mm. The inner and outer radii are both zero, and the lens has a base shape of a circle. The first radius of curvature (r1) is 14.94mm, while the second radius (r2) is -14.94mm, and the third radius (r3) is -120.18mm.
The 45-826 is equipped with a standard coating on both the front and back, specifically the EDN NIR-II STD curve. This coating enhances the lens's performance within the NIR II spectrum, making it an ideal choice for applications that require superior optical performance in this range.
More Lens
