LB4842-C UV Fused Silica Bi-Convex Lens; Dia:2 in; f=200.0 mm ARC 1050-1700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 200 mm
- BFL
- 197.7 mm
- R1
- 183 mm
- R2
- -183 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
LB4842-C UV Fused Silica Bi-Convex Lens; Dia:2 in; f=200.0 mm ARC 1050-1700nm
The LB4842-C is a UV Fused Silica Bi-Convex Lens, boasting a diameter of 2 inches and a focal length of 200.0 mm. This lens is sourced from Thorlabs, a reputable vendor known for its high-quality optical components.
The lens is designed with a Spherical shape, featuring a Base Shape of Circular. The geometry of the lens includes a thickness edge of 3 and a thickness center of 6.5, providing a robust structure. The effective focal length (EFL) is 200.0 mm, and the back focal length (BFL) is 197.7 mm, offering a balanced optical performance.
The lens is made from UV Fused Silica, a material with the Material ID "uvfs mal- 1965". This material is known for its excellent transparency in the UV range, making it ideal for applications that require high-performance in this spectrum.
The lens is coated with a broadband anti-reflection coating, specifically designed for the wavelength range of 1050-1700nm. This coating, denoted as "tho c bbar" for both the front and back surfaces, reduces surface reflections and increases transmission, thereby enhancing the overall performance of the lens.