49-349 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 20 mm Dia. S-BAH11/N-SF10 Achromatic Doublet; EFL=35mm VIS-NIR 400-1000nm
The 49-349 is a high-quality achromatic doublet lens, boasting a 20 mm diameter and an effective focal length of 35mm. This lens is designed for use in the visible to near-infrared spectrum, spanning 400-1000nm, making it a versatile choice 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 is coated with EDm VIS-NIR 0SP2002000 on both the front and back surfaces, further enhancing its capabilities.
The geometry of the lens is meticulously designed, with an inner radius of 0 and an outer radius of 0. The center thickness is 7.33mm, while the edge thickness is 6.57mm. The lens also features a first radius (r1) of 24.24mm and a second radius (r2) of -15.96mm. These specifications contribute to the lens's excellent optical performance.
This lens is available from Edmund Optics and is currently in stock, making it a readily accessible option for your optical needs. For more information, please refer to the vendor's website at https://www.edmundoptics.com/p/20mm-dia-x-35mm-fl-vis-nir-coated-achromatic-lens/9741/.
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