LA1172-AB 25.4 mm Dia. N-BK7 Plano-Convex Lens; EFL=400mm 400-1100nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 398.7 mm
- R1
- 206 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
LA1172-AB 25.4 mm Dia. N-BK7 Plano-Convex Lens; EFL=400mm 400-1100nm
This is a Plano-Convex lens, type LA1172-AB, manufactured by Thorlabs. The lens has a diameter of 25.4 mm and a thickness of 2 mm at the edge, with a center thickness of 2.4 mm. The effective focal length (EFL) of this lens is 398.7 mm, making it suitable for applications requiring long focal lengths.
The lens is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties and versatility. The curvature of the lens is defined by a radius (R1) of 206 mm on the convex side. The inner and outer radii are both zero, indicating a plano surface on the other side.
The lens is coated with THo AB Bbar on both the front and back surfaces. This anti-reflection coating is designed to reduce surface reflections and increase transmission in the spectral range of 400-1100 nm.
The lens is spherical in shape, a common choice for many optical systems due to its ease of manufacturing and alignment. The lens is currently in stock, according to the vendor's website.
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