49-475 12mm Dia. x 18mm 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
- 12 mm
- EFL
- 18 mm
- BFL
- 16.81 mm
- R1
- 18.01 mm
- R2
- -18.01 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
49-475 12mm Dia. x 18mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm
This is a 12mm diameter, double-convex lens with a focal length of 18mm, designed for use in the near-infrared spectrum. The lens is sourced from Edmund Optics and is currently in stock. It is made from N-BK7 Schott glass, a common material for optical elements due to its excellent optical properties and chemical durability.
The lens features a double-convex geometry, meaning it has two spherical surfaces that curve outwards. This design is often used to achieve a high level of refraction, making it suitable for applications that require the concentration or divergence of light. The lens has a center thickness of 3.48mm and an edge thickness of 1.42mm, providing a robust structure while maintaining a sleek profile.
The lens is coated with EDM NIR-I std curve on both the front and back surfaces. This coating is specifically designed for use in the near-infrared spectrum, enhancing the lens's performance in this range (600-1050nm). The coating helps to reduce surface reflections, improving light transmission and enhancing the overall efficiency of the optical system.