LD5788-E 12.7 mm Dia. CaF2 Double-Concave Lens; EFL=-25mm 3-5µm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- -25 mm
- R1
- -22.1 mm
- R2
- 22.1 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
LD5788-E 12.7 mm Dia. CaF2 Double-Concave Lens; EFL=-25mm 3-5µm
The LD5788-E is a high-quality double-concave lens from Thorlabs, featuring a 12.7 mm diameter and a center thickness of 3 µm. This lens is designed for use with a wavelength of 588 nm and is made from Calcium Fluoride (CaF2) material, identified as mal-1963 in the material database.
The lens boasts an effective focal length (EFL) of -25 mm, making it suitable for a variety of applications that require concave-concave lenses. The double-concave design features radii of curvature of -22.1 mm and 22.1 mm for the front and back surfaces, respectively. The inner and outer radii are both 0 mm, indicating a uniform curvature across the lens surface.
The LD5788-E is coated with ARC20005000 on both the front and back surfaces, providing excellent anti-reflection properties. This coating is specifically designed for use with Calcium Fluoride lenses and a 500-1100 nm wavelength range, ensuring optimal performance and minimal light loss.
