SLB-25.4-40NIR1 25.4 mm Dia. x -40.0 mm FL; Coated; Plano-Concave Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -40 mm
- BFL
- -41.3 mm
- R1
- -20.76 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.518720636186463
- λ
- 546.1 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
SLB-25.4-40NIR1 25.4 mm Dia. x -40.0 mm FL; Coated; Plano-Concave Lens 633-1064nm
The SLB-25.4-40NIR1 is a Plano-Concave Spherical Lens, 25.4 mm in diameter, with a focal length of -40.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made of n-bk7 schott material, a popular choice for its high refractive index and low dispersion.
The lens features a concave shape on both sides, with an inner radius of 0 mm and an outer radius of 0 mm. The edge thickness measures 6.3 mm, while the center thickness is 2 mm. The back focal length is -41.3 mm, and the effective focal length is -40 mm.
The SLB-25.4-40NIR1 is coated with opt ir1 on both the front and back surfaces, providing excellent anti-reflective properties in the 633-1064nm wavelength range. This coating enhances the lens's performance in infrared applications, making it suitable for use in various fields such as spectroscopy, laser technology, and optical imaging.
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