69-922-INK 12.7 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=125mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 125 mm
- R1
- 76.92 mm
- R2
- -55.48 mm
Material 1
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5185223876207927
- λ
- 550 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
Material 2
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6771143911586193
- λ
- 550 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
69-922-INK 12.7 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=125mm VIS 0° 425-675nm
The 69-922-INK is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 12.7 mm, is designed for use within the visible light spectrum, specifically between 425-675nm. The lens boasts an effective focal length (EFL) of 125mm, making it suitable for a wide range of optical applications.
The lens is composed of two elements, made from N-BK7 and N-SF5 Schott glass, respectively. These materials have been carefully selected to minimize chromatic aberration, a common issue in optical systems. The first element has a radius of curvature (R1) of 76.92, while the second element has an R2 of -55.48. The third surface (R3) has a radius of -162.59, contributing to the lens's overall optical performance.
The lens's geometry includes a thickness of 6.11mm at the edge and 4.5mm at the center, with an additional 2mm thickness at the center a. The lens's inner and outer radii are both zero, indicating a circular shape.
The lens is coated with EDM Vis-0 std curve on both the front and back surfaces, enhancing its light transmission capabilities and overall performance within its specified wavelength range. This lens is currently in stock and available for immediate use.
