49-349-INK 20 mm Dia. S-BAH11/N-SF10 Achromatic Doublet; EFL=35mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 35 mm
- R1
- 24.24 mm
- R2
- -15.96 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
49-349-INK 20 mm Dia. S-BAH11/N-SF10 Achromatic Doublet; EFL=35mm VIS-NIR 400-1000nm
The 49-349-INK is a high-quality achromatic doublet lens, designed and manufactured by Edmund Optics. This lens, with a 20 mm diameter, is specifically engineered for use in the visible to near-infrared spectrum, spanning from 400 to 1000nm. The lens boasts an effective focal length (EFL) of 35mm, making it suitable for a wide range of optical applications.
The lens is composed of two elements: 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 sophisticated geometry, with a thickness of 6.57mm at the edge, gradually decreasing to 1.76mm at the center a. The curvature of the lens is also precisely controlled, with radii of 24.24mm, -15.96mm, and -139.78mm for the first, second, and third surfaces, respectively.
The 49-349-INK lens is coated with Edmund Optics' proprietary VIS-NIR coating (EDM VisNIR 0SP2002000) on both the front and back surfaces. This coating enhances the lens's transmission capabilities and reduces unwanted reflections, thereby improving the overall system performance.
More Lens
