LB4140-B UV Fused Silica Bi-Convex Lens; Dia:2 in; f=150.0 mm ARC 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 150 mm
- BFL
- 147.3 mm
- R1
- 136.8 mm
- R2
- -136.8 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
LB4140-B UV Fused Silica Bi-Convex Lens; Dia:2 in; f=150.0 mm ARC 650-1050nm
The LB4140-B is a high-quality bi-convex lens, designed and manufactured by Thorlabs, a leading vendor in the optical industry. This lens boasts a diameter of 2 inches, or 50.8 millimeters, and a focal length of 150 millimeters, making it suitable for a wide range of optical applications.
The lens is made from UV fused silica, a material known for its excellent optical properties, including high transparency across a broad spectrum, from 190 to 2000 nanometers. This makes the LB4140-B particularly suitable for applications involving ultraviolet light.
The lens features a double-sided broadband anti-reflection coating, designed for the 650-1050 nanometer range. This coating reduces surface reflections, thereby increasing the amount of light transmitted through the lens. The coating also helps to protect the lens from environmental contaminants and damage.
The lens has a center thickness of 7.8 millimeters and an edge thickness of 3 millimeters. The radii of curvature for the front and back surfaces are 136.8 millimeters and -136.8 millimeters, respectively. The back focal length is 147.3 millimeters, and the lens has no inner or outer radius.
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