SLB-30B-35NM 30.0 mm Dia. x -34.7 mm FL; Coated; Double-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 30 mm
- EFL
- -34.7 mm
- BFL
- -35.3 mm
- R1
- -36.33 mm
- R2
- 36.33 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-30B-35NM 30.0 mm Dia. x -34.7 mm FL; Coated; Double-Concave Lens 400-700nm
The SLB-30B-35NM is a high-quality double-concave lens, boasting a diameter of 30.0 mm and a focal length of -34.7 mm. This lens is sourced from OptoSigma, a renowned vendor known for their precision optical elements. The lens is made from n-bk7 schott, a material widely used in optical applications due to its excellent optical properties.
The lens features a double-concave geometry, with radii of curvature of -36.33 mm and 36.33 mm for the front and back surfaces, respectively. This geometry results in a back focal length of -35.3 mm. The lens has an edge thickness of 8.5 mm and a center thickness of 2 mm, providing robustness and durability.
The SLB-30B-35NM is coated with opt m on both the front and back surfaces. This coating enhances the lens's performance in the spectral range of 400-700 nm, making it suitable for a wide range of applications, including but not limited to, imaging systems, beam shaping, and laser applications.