49-790 12.7 mm Dia. N-BAK1/N-SF15 Achromatic Doublet; EFL=50.8mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 50.8 mm
- R1
- 33.17 mm
- R2
- -23.98 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
49-790 12.7 mm Dia. N-BAK1/N-SF15 Achromatic Doublet; EFL=50.8mm VIS-NIR 400-1000nm
The 49-790 is a high-quality achromatic doublet lens, boasting a 12.7 mm diameter and an effective focal length of 50.8mm. This lens is designed for use in the visible to near-infrared spectrum, spanning 400-1000nm, making it a versatile choice for a wide range of optical applications.
The lens is composed of two elements, made from N-BAK1 and N-SF15 materials, both sourced from Schott. These materials are known for their excellent optical properties, contributing to the lens's high performance. The lens is coated with EDm VIS-NIR 0SP2002000 on both the front and back surfaces, further enhancing its capabilities and ensuring durability.
The lens's geometry is carefully designed, with a thickness at the edge of 3.16mm and a center thickness of 2.5mm. The inner and outer radii are 0, and the lens features a first radius (r1) of 33.17mm and a second radius (r2) of -23.98mm. The lens also has a third radius (r3) of -89.03mm, contributing to its achromatic properties.
This lens is available from Edmund Optics and is currently in stock, according to the vendor's website. For more information, including pricing and availability, please refer to the provided weblink.
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