49-288-INK 50 mm Dia. N-BAK4/N-SF10 Achromatic Doublet; EFL=300mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 300 mm
- R1
- 173.11 mm
- R2
- -164.03 mm
Material 1
- Name
- N-BAK4
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5709961571059783
- λ
- 550 nm
- B1
- 1.28834642
- C1
- 0.00779980626 μm2
- B2
- 0.132817724
- C2
- 0.0315631177 μm2
- B3
- 0.945395373
- C3
- 105.965875 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
49-288-INK 50 mm Dia. N-BAK4/N-SF10 Achromatic Doublet; EFL=300mm VIS 0° 425-675nm
The 49-288-INK is a high-quality achromatic doublet lens, boasting a 50 mm diameter and an effective focal length (EFL) of 300 mm, specifically designed for the visible light spectrum ranging from 425 to 675 nm. This lens is sourced from the reputable optical vendor, Edmund Optics, and is available for purchase through their website, currently listed as in stock.
This achromatic doublet lens is meticulously crafted from two distinct materials, N-BAK4 and N-SF10, both from the esteemed Schott glass catalog. The lens features a sophisticated geometry, with an edge thickness of 10.24 mm, a center thickness of 9 mm, and a center a thickness of 3.5 mm. The inner and outer radii are optimized for superior performance.
The lens is coated with the EDM VIS-0 standard curve on both the front and back surfaces, ensuring optimal light transmission and reducing unwanted reflections. The lens shape is a multiplet, further enhancing its optical capabilities.
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