65-435 9 mm Dia. N-LAK14/N-SF66 Achromatic Doublet; EFL=12mm NIR II 750-1550nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 9 mm
- EFL
- 12 mm
- R1
- 6.7 mm
- R2
- -6.04 mm
Material 1
- Name
- N-LAK14
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6994860724588354
- λ
- 550 nm
- B1
- 1.50781212
- C1
- 0.00746098727 μm2
- B2
- 0.318866829
- C2
- 0.0242024834 μm2
- B3
- 1.14287213
- C3
- 80.9565165 μm2
Material 2
- Name
- N-SF66
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.9321208113933757
- λ
- 550 nm
- B1
- 2.0245976
- C1
- 0.0147053225 μm2
- B2
- 0.470187196
- C2
- 0.0692998276 μm2
- B3
- 2.59970433
- C3
- 161.817601 μm2
65-435 9 mm Dia. N-LAK14/N-SF66 Achromatic Doublet; EFL=12mm NIR II 750-1550nm
The 65-435 is a high-quality achromatic doublet lens, boasting a 9 mm diameter and a focal length of 12 mm, specifically designed for use within the near-infrared spectrum of 750-1550 nm. This lens is sourced from the esteemed optical vendor, Edmund Optics, and is available directly from their website with a valid "in stock" status.
The lens is constructed from two distinct materials, N-LAK14 and N-SF66, both from the reputable Schott glass manufacturer. This combination ensures superior optical performance and minimal chromatic aberration. The lens features a curvature with three radii (r1, r2, and r3) and a central thickness of 6 mm, with an additional 0.21 mm at the edge. The inner and outer radii are 0, indicating a circular shape.
The 65-435 lens is coated with Edmund Optics' standard NIR-II coating on both the front and back surfaces, ensuring optimal performance within its specified wavelength range. This coating is part of the lens's standard curve, providing reliable and consistent results.
