SLB-25.4B-150NIR2 25.4 mm Dia. x -149.7 mm FL; Coated; Double-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -149.7 mm
- BFL
- -150.4 mm
- R1
- -155.7 mm
- R2
- 155.7 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-25.4B-150NIR2 25.4 mm Dia. x -149.7 mm FL; Coated; Double-Concave Lens 750-1550nm
The SLB-25.4B-150NIR2 is a high-quality double-concave lens, 25.4 mm in diameter, designed for use within the wavelength range of 750-1550nm. This lens is sourced from the reputable vendor OptoSigma, and it is currently in stock with a valid web link provided for easy access to additional information.
The lens is made from the high-grade material n-bk7 schott, a borosilicate crown glass known for its excellent optical properties. The base shape of the lens is circular, and it features a spherical geometry with a center thickness of 2mm and an edge thickness of 3mm. The effective focal length (EFL) of the lens is -149.7mm, and the back focal length (BFL) is -150.4mm. The radii of curvature for the first and second surfaces are -155.7mm and 155.7mm, respectively.
The lens comes with a coating of opt ir2 on both the front and back surfaces, providing enhanced performance within the specified wavelength range. This coating is designed to optimize the lens's performance in the near-infrared spectrum, making it ideal for a wide range of applications in this region.