47-661 12.5 mm Dia. S-BAH11/N-SF10 Achromatic Doublet; EFL=20mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- 20 mm
- R1
- 13.98 mm
- R2
- -9.35 mm
Material 1
- Name
- S-BAH11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6696557498333158
- λ
- 550 nm
- B1
- 1.5713886
- C1
- 0.00910807936 μm2
- B2
- 0.147869313
- C2
- 0.0402401684 μm2
- B3
- 1.28092846
- C3
- 130.399367 μm2
Material 2
- Name
- N-SF10
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7336618876174243
- λ
- 550 nm
- B1
- 1.62153902
- C1
- 0.0122241457 μm2
- B2
- 0.256287842
- C2
- 0.0595736775 μm2
- B3
- 1.64447552
- C3
- 147.468793 μm2
47-661 12.5 mm Dia. S-BAH11/N-SF10 Achromatic Doublet; EFL=20mm VIS 0° 425-675nm
The 47-661 is a high-quality achromatic doublet lens, boasting a 12.5 mm diameter and an effective focal length of 20mm. This lens is designed for use within the visible light spectrum, specifically between 425-675nm. Manufactured by Edmund Optics, this lens is part of their extensive catalog of optical elements, renowned for their precision and reliability.
The lens is constructed from two types of glass: S-BAH11 from Ohara and N-SF10 from Schott. These materials are carefully selected for their optical properties, contributing to the lens's overall performance. The lens features a standard anti-reflective coating on both the front and back surfaces, enhancing its light transmission capabilities.
The lens geometry is meticulously designed, with a center thickness of 5.25mm and an edge thickness of 4.62mm. The lens curvature is defined by three radii: r1 at 13.98mm, r2 at -9.35mm, and r3 at -76.14mm. These specifications contribute to the lens's excellent imaging capabilities.
More Lens
