LB4700-UV 12.7 mm Dia. UVFS Double-Convex Lens; EFL=40mm 245-400nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 40 mm
- R1
- 36.3 mm
- R2
- -36.3 mm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.458448271212196
- λ
- 588 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
LB4700-UV 12.7 mm Dia. UVFS Double-Convex Lens; EFL=40mm 245-400nm
The LB4700-UV is a high-quality double-convex lens from Thorlabs, designed for use in ultraviolet (UV) applications. This lens, with a diameter of 12.7 mm, is made from UVFS, a material specifically engineered for UV light transmission. The lens has an effective focal length (EFL) of 40mm, making it suitable for a wide range of optical systems.
The lens features a double-convex geometry, with radii of curvature of 36.3mm for both the front and back surfaces. This geometry helps to minimize spherical aberration, ensuring optimal image quality. The lens has a thickness of 1.8mm at the edge and 2.9mm at the center, providing robustness and stability.
The LB4700-UV is coated with Thorlabs' UV-optimized BBAR coating on both the front and back surfaces. This coating enhances transmission in the UV range (245-400nm), making the lens ideal for UV applications. The coating also provides protection against environmental hazards, ensuring the longevity of the lens.