LA1978-780 N-BK7 Plano-Convex Lens; Dia:1 in; f=750.0 mm 780nm V-Coat
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 750 mm
- BFL
- 746.06 mm
- R1
- 386.3 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
LA1978-780 N-BK7 Plano-Convex Lens; Dia:1 in; f=750.0 mm 780nm V-Coat
The LA1978-780 is a Plano-Convex lens, specifically designed for use in the optical spectrum around 780nm. Manufactured by Thorlabs, a leading vendor in the field of optical components, this lens boasts a high-quality N-BK7 Schott glass base material, renowned for its excellent optical properties.
The lens has a diameter of 1 inch (25.4mm) and a thickness of 2mm at the edge, while the center thickness measures 2.2mm. The effective focal length (EFL) of this lens is 750mm, making it suitable for a wide range of applications that require long focal lengths.
The curvature of the lens is defined by a radius of 386.3mm on the planar side and a back focal length of 746.06mm. The lens has no inner or outer radius, indicating a uniform curvature across the surface.
The LA1978-780 lens features a V-coat on both the front and back surfaces, specifically designed for 780nm. This coating enhances the lens's performance in its intended wavelength range, providing improved transmission and reduced reflection.
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