LB5247 25.4 mm Dia. CaF2 Double-Convex Lens; EFL=75mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 75 mm
- R1
- 64.4 mm
- R2
- -64.4 mm
Material
- Name
- CaF2
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4338389315589535
- λ
- 588 nm
- B1
- 0.5675888
- C1
- 0.00252643 μm2
- B2
- 0.4710914
- C2
- 0.010078333 μm2
- B3
- 3.8484723
- C3
- 1200.555973 μm2
LB5247 25.4 mm Dia. CaF2 Double-Convex Lens; EFL=75mm Uncoated
The LB5247 is a high-quality spherical lens offered by Thorlabs, featuring a double-convex design and a diameter of 25.4 mm. This lens is made from Calcium Fluoride (CaF2) material, specifically identified as "caf2 mal-1963" in the material database. The lens's geometry includes a thickness of 2 mm at the edge and 4.5 mm at the center, with a 75 mm effective focal length (EFL).
The lens's base shape is circular, and its surface is uncoated. The first radius of curvature (R1) is 64.4 mm, while the second radius (R2) is -64.4 mm, indicating a convex-convex design. The lens's inner and outer radii are both 0, suggesting a symmetrical design.
This lens is designed to operate at a wavelength of 588 nm. The provided weblink indicates that the lens is currently in stock, making it an ideal choice for immediate use in various applications.