LB4700-A UV Fused Silica Bi-Convex Lens; Dia:0.5 in; f=40.0 mm ARC 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 40 mm
- BFL
- 39.9 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-A UV Fused Silica Bi-Convex Lens; Dia:0.5 in; f=40.0 mm ARC 350-700nm
The LB4700-A 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 0.5 inches and a focal length of 40.0 mm, making it a versatile choice for a wide range of optical applications.
The lens is crafted from UV fused silica, a material known for its exceptional transparency across a broad spectrum, from 350 to 700 nm. This makes the LB4700-A particularly suitable for applications that require high transmission in the ultraviolet range.
The lens features a spherical geometry, with radii of curvature of 36.3 mm for the first surface and -36.3 mm for the second surface. This bi-convex design helps to minimize spherical aberration, ensuring optimal image quality. The lens has an effective focal length (EFL) of 40 mm and a back focal length (BFL) of 39.9 mm.
The LB4700-A is equipped with anti-reflection coatings on both the front and back surfaces. These coatings, designated as 'tho a bbar', are specifically designed to reduce surface reflections and increase transmission in the 350-700 nm range.
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