LA1560-D N-BK7 Plano-Convex Lens; Dia:0.5 in; f=25.0 mm ARC 1650-3000nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 24.9 mm
- BFL
- 22.6 mm
- R1
- 12.9 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
LA1560-D N-BK7 Plano-Convex Lens; Dia:0.5 in; f=25.0 mm ARC 1650-3000nm
The LA1560-D is a Plano-Convex lens, part of Thorlabs' extensive catalog of optical elements. This lens boasts a diameter of 0.5 inches and a focal length of 25.0 mm, making it suitable for a wide range of applications. The lens is made from N-BK7, a popular glass type known for its excellent optical properties, particularly its low dispersion.
The lens's geometry is characterized by a 12.7 mm diameter, a 1.8 mm edge thickness, and a 3.5 mm center thickness. The effective focal length (EFL) is 24.9 mm, and the radius of curvature (ROC) is 12.9 mm. The back focal length (BFL) is 22.6 mm. The lens's shape is spherical, which is a common choice due to its ease of manufacturing and good performance.
The LA1560-D is coated with ARC 1650-3000nm, a coating that reduces reflection and increases transmission in the 1650-3000nm wavelength range. This coating is applied to both the front and back surfaces of the lens.
The lens is currently in stock and can be purchased directly from Thorlabs via the provided weblink.
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