62-492 25 mm Dia. N-BAF10/N-SF10 Negative Achromatic Doublet; EFL=-50mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -50 mm
- R1
- -35.51 mm
- R2
- 24.58 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-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
62-492 25 mm Dia. N-BAF10/N-SF10 Negative Achromatic Doublet; EFL=-50mm VIS 0° 425-675nm
The 62-492 is a high-quality negative achromatic doublet lens, boasting a 25 mm diameter and a focal length of -50 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 on their official website.
The lens is constructed from two types of Schott glass, N-BAF10 and N-SF10, which are renowned for their excellent optical properties. The lens features a sophisticated multiplet geometry, with a thickness of 9.06 mm at the edge, and varying radii (r1=-35.51 mm, r2=24.58 mm, r3=217.99 mm) that ensure superior image quality and minimal chromatic aberration.
The lens's central thickness is 2.5 mm, while the thickness at the edge 'a' is 4.06 mm. This design allows for efficient light transmission and minimal distortion. The lens is coated with Edmund Optics' standard VIS-0 coating on both the front and back surfaces, which enhances its light transmission capabilities and durability.
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