AL75150-B 75 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=150 mm; NA=0.23 AR 650-1050nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 75 mm
- EFL
- 150 mm
- R1
- 76.68 mm
- R2
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5111833144579327
- λ
- 780 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
AL75150-B 75 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=150 mm; NA=0.23 AR 650-1050nm
The AL75150-B is a high-precision aspheric lens, meticulously crafted by Thorlabs. This lens boasts a 75 mm diameter and is designed for use with a wavelength of 780 nm. It is constructed from n-BK7 Schott, a material renowned for its excellent optical properties.
The lens features an effective focal length (EFL) of 150 mm, making it suitable for a wide range of optical applications. The aspheric design, combined with CNC polishing, ensures high-precision performance. The lens's shape is defined by a series of radii (r1: 76.68, r2: 0), thicknesses (edge: 5.7 mm, center: 15 mm), and aspheric coefficients (k1: -0.675, a2 front: 0, a4 front: 2.7709219e-08, a6 front: 6.418186e-13, a8 front: -1.5724014e-17, a10 front: -2.7768768e-21, a12 front: -2.590162e-25, a14 front: 0, a16 front: 0).
The lens's numerical aperture (NA) is 0.23, indicating a wide acceptance angle and high light-gathering capability. The lens is coated with broadband anti-reflection (AR) coatings, optimized for the 650-1050 nm range, which minimizes surface reflections and enhances transmission.
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