45-789 6 mm Dia. N-LAK22/N-SF6 Achromatic Doublet; EFL=35mm NIR II 750-1550nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 6 mm
- EFL
- 35 mm
- R1
- 19.39 mm
- R2
- -19 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
45-789 6 mm Dia. N-LAK22/N-SF6 Achromatic Doublet; EFL=35mm NIR II 750-1550nm
The 45-789 is a high-quality achromatic doublet lens, boasting a 6 mm diameter and an effective focal length (EFL) of 35mm, specifically designed for use in the near-infrared (NIR) spectrum, covering the wavelength range of 750-1550nm. This lens is sourced from the renowned optical vendor, Edmund Optics.
The lens is constructed from two types of Schott glass, N-LAK22 and N-SF6, which are renowned for their excellent optical properties in the NIR range. The lens is designed with a base shape of a circle, ensuring uniform light distribution and minimal distortion.
The geometry of the lens is meticulously crafted, with a thickness of 4.05mm at the edge, 3mm at the center, and 1.3mm at the center a. The inner and outer radii are 0, and the lens features a first radius (r1) of 19.39mm and a second radius (r2) of -19mm. The third radius (r3) is -297.39mm, indicating a complex and precise design.
The lens is coated with Edmund Optics' standard NIR-II coating on both the front and back surfaces, ensuring optimal performance and longevity in the NIR range. The lens is classified as a multiplet, indicating a compound lens made up of multiple elements.
The lens is currently in stock and available for immediate purchase. For more information, including pricing and detailed specifications, please refer to the provided weblink.
