49-783 25.4 mm Dia. N-BAK1/N-SF15 Achromatic Doublet; EFL=101.6mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 101.6 mm
- R1
- 66.33 mm
- R2
- -47.95 mm
Material 1
- Name
- N-BAK1
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5746241031015316
- λ
- 550 nm
- B1
- 1.12365662
- C1
- 0.00644742752 μm2
- B2
- 0.309276848
- C2
- 0.0222284402 μm2
- B3
- 0.881511957
- C3
- 107.297751 μm2
Material 2
- Name
- N-SF15
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7038049870312608
- λ
- 550 nm
- B1
- 1.57055634
- C1
- 0.0116507014 μm2
- B2
- 0.218987094
- C2
- 0.0597856897 μm2
- B3
- 1.50824017
- C3
- 132.709339 μm2
49-783 25.4 mm Dia. N-BAK1/N-SF15 Achromatic Doublet; EFL=101.6mm VIS 0° 425-675nm
The 49-783 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 25.4 mm, is designed for use in the visible light spectrum, specifically between 425 and 675 nanometers. The lens boasts an effective focal length (EFL) of 101.6 mm, making it suitable for a wide range of optical applications.
The lens is composed of two elements, made from N-BAK1 and N-SF15 Schott glass. These materials are known for their excellent optical properties, contributing to the lens' high-performance capabilities. The lens features a standard coating on both the front and back surfaces, specifically the EDM VIS-0 standard curve coating, which enhances its light transmission and reduces unwanted reflections.
The lens geometry is carefully designed, with an edge thickness of 6.32 mm and a center thickness of 5 mm. The lens also features a concave-convex-concave curvature, with radii of 66.33 mm, -47.95 mm, and -178.05 mm, respectively. This unique geometry contributes to the lens' ability to correct chromatic aberration, a common issue in optical systems.
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