LC1439-B N-BK7 Plano-Concave Lens; Dia:0.5 in; f=-50.0 mm ARC 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- -50 mm
- BFL
- -52.3 mm
- R1
- -25.7 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
LC1439-B N-BK7 Plano-Concave Lens; Dia:0.5 in; f=-50.0 mm ARC 650-1050nm
The LC1439-B is a plano-concave lens with a diameter of 0.5 inches and a focal length of -50.0 mm. This lens is sourced from Thorlabs, a reputable vendor known for its high-quality optical components. The lens is made of N-BK7, a popular glass type in the optical industry due to its excellent optical properties.
The lens's geometry includes a thickness edge of 4.3 mm and a thickness center of 3.5 mm. The effective focal length (EFL) is -50 mm, and the radius of curvature (R1) is -25.7 mm. The back focal length (BFL) is -52.3 mm. The lens's inner and outer radii are both 0, indicating a flat surface on one side and a curved surface on the other.
This lens is coated with a broadband anti-reflection coating (ARC) suitable for wavelengths between 650 and 1050 nm, enhancing its transmission capabilities within this spectral range. The coating is applied to both the front and back surfaces of the lens, ensuring optimal performance.
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