SLB-30B-30N 30.0 mm Dia. x -29.7 mm FL; Double-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 30 mm
- EFL
- -29.7 mm
- BFL
- -30.3 mm
- R1
- -31.14 mm
- R2
- 31.14 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-30N 30.0 mm Dia. x -29.7 mm FL; Double-Concave Lens Uncoated
The SLB-30B-30N is a high-quality double-concave lens, sourced from the reputable optical component manufacturer, OptoSigma. This lens is characterized by its 30.0 mm diameter and a focal length of -29.7 mm, making it suitable for a wide range of optical applications.
The lens is fabricated from the renowned material, n-BK7 Schott, a borosilicate crown glass known for its excellent optical properties, including a high refractive index and low dispersion. This makes the lens ideal for applications that require high image quality and color correction.
The lens geometry features a double-concave design, with radii of curvature of -31.14 mm for the first surface and 31.14 mm for the second surface. The edge thickness measures 9.7 mm, while the center thickness is 2 mm, providing robustness and durability.
The lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements. However, it's important to note that the uncoated version may have higher surface reflections, which could affect the overall transmission and image quality.
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