SLB-25.4B-60NM 25.4 mm Dia. x -59.7 mm FL; Coated; Double-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -59.7 mm
- BFL
- -60.4 mm
- R1
- -62.28 mm
- R2
- 62.28 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-60NM 25.4 mm Dia. x -59.7 mm FL; Coated; Double-Concave Lens 400-700nm
This is a high-quality double-concave lens, the SLB-25.4B-60NM, sourced from OptoSigma. It is specifically designed for use within the wavelength range of 400-700nm, making it suitable for a wide range of optical applications.
The lens has a base shape of a circle and is made from the material n-bk7 schott. The geometry of the lens includes a diameter of 25.4mm, a thickness at the edge of 4.6mm, and a thickness at the center of 2mm. The effective focal length (EFL) is -59.7mm, and the back focal length (BFL) is -60.4mm. The radii of curvature for the first and second surfaces are -62.28mm and 62.28mm, respectively.
The SLB-25.4B-60NM lens features a coating on both the front and back surfaces. This coating, identified as 'opt m', enhances the lens' performance within its specified wavelength range.
Please note that the lens is spherical in shape, a characteristic that can affect the quality of the optical image in certain applications. However, this is a common feature in many optical lenses and can be effectively managed with proper design and alignment.
The lens is currently in stock and available for immediate use. For more information, including detailed specifications and purchasing options, please refer to the provided weblink.
