33-921-INK 75 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=100mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 75 mm
- EFL
- 100 mm
- R1
- 66.67 mm
- R2
- -66.67 mm
Material 1
- Name
- N-BAF10
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6730569473646495
- λ
- 550 nm
- B1
- 1.5851495
- C1
- 0.00926681282 μm2
- B2
- 0.143559385
- C2
- 0.0424489805 μm2
- B3
- 1.08521269
- C3
- 105.613573 μm2
Material 2
- Name
- N-SF57
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.854148364121864
- λ
- 550 nm
- B1
- 1.87543831
- C1
- 0.0141749518 μm2
- B2
- 0.37375749
- C2
- 0.0640509927 μm2
- B3
- 2.30001797
- C3
- 177.389795 μm2
33-921-INK 75 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=100mm VIS 0° 425-675nm
The 33-921-INK is a high-quality achromatic doublet lens, boasting a 75 mm diameter and an effective focal length (EFL) of 100 mm, specifically designed for the visible light spectrum ranging from 425 to 675 nm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available for purchase through their official website.
This achromatic doublet lens is constructed from two types of Schott glass, N-BAF10 and N-SF57, which are carefully selected to minimize chromatic aberration, a common issue in optical systems. The lens features a front and back coating of EDMM Vis-0 std curve, further enhancing its performance by reducing surface reflections and increasing transmission.
The lens geometry is meticulously designed, with an inner radius of 0 mm, an outer radius of 0 mm, and a thickness at the edge of 24.66 mm. The center thickness is 26 mm, while the center a thickness is 12.7 mm. The lens's base shape is circular, and its multiplet shape ensures optimal optical performance.
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