49-769 25.4 mm Dia. N-BAK1/N-SF8 Achromatic Doublet; EFL=88.9mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 88.9 mm
- R1
- 56.98 mm
- R2
- -40.06 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-SF8
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6935844234114055
- λ
- 550 nm
- B1
- 1.55075812
- C1
- 0.0114338344 μm2
- B2
- 0.209816918
- C2
- 0.0582725652 μm2
- B3
- 1.46205491
- C3
- 133.24165 μm2
49-769 25.4 mm Dia. N-BAK1/N-SF8 Achromatic Doublet; EFL=88.9mm MgF2 400-700nm
The 49-769 is a high-quality achromatic doublet lens, boasting a 25.4 mm diameter and an effective focal length of 88.9mm. This lens is meticulously crafted from N-BAK1 and N-SF8 Schott glass, renowned for their exceptional optical properties. The lens is designed to minimize chromatic aberration, ensuring sharp, clear images across the entire visible spectrum (400-700nm).
The lens features a robust construction, with a thickness of 8.07mm at the edge and 6mm at the center. The inner and outer radii are optimized for superior performance, while the center thickness is a mere 4mm, reducing weight without compromising on optical quality. The lens is coated with MgF2, a standard coating that provides excellent transmission and durability.
This lens is sourced from Edmund Optics, a leading vendor known for their high-quality optical components. The weblink provided leads to a page where you can find more information about the lens, including pricing and availability. The link has been verified and is currently valid, indicating that the lens is in stock.
