49-487 20mm Dia. x 30mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 30 mm
- BFL
- 28.2 mm
- R1
- 30.08 mm
- R2
- -30.08 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
49-487 20mm Dia. x 30mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm
The 49-487 is a high-quality double-convex lens, boasting a 20mm diameter and a 30mm focal length. This lens is sourced from the renowned optical vendor, Edmund Optics, and is readily available for your optical system requirements.
The lens is fabricated from the esteemed N-BK7 glass from Schott, a material renowned for its excellent optical properties, including low dispersion and high homogeneity. This ensures that the lens delivers sharp and clear images, free from chromatic aberrations.
The 49-487 features a double-convex geometry, with radii of curvature of 30.08mm for the front surface and -30.08mm for the rear surface. This geometry provides a high refractive power, making it suitable for use in various applications, such as beam shaping, collimation, and imaging.
The lens is coated with the EDM NIR-I standard curve coating on both the front and rear surfaces. This coating is specifically designed for the near-infrared (NIR) region, covering the wavelength range of 600-1050nm. It enhances the lens's performance by reducing surface reflections and increasing transmission, thereby improving the overall efficiency and quality of your optical system.
The lens has an effective focal length (EFL) of 30mm, providing a moderate magnification and field of view. The edge thickness is 1.88mm, while the center thickness is 5.3mm, ensuring robustness and durability.
