49-545 9mm Dia. x -18mm FL; NIR I Coated; Double-Concave Lens 600-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 9 mm
- EFL
- -18 mm
- BFL
- -12.33 mm
- R1
- -18.86 mm
- R2
- 18.86 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
49-545 9mm Dia. x -18mm FL; NIR I Coated; Double-Concave Lens 600-1050nm
The 49-545 is a double-concave lens with a 9mm diameter and a focal length of -18mm, making it a negatively powered lens. This lens is sourced from Edmund Optics, a reputable vendor known for its high-quality optical components. The lens is designed for use within the near-infrared (NIR) spectrum, specifically between 600-1050nm, making it suitable for a variety of applications within this range.
The lens is made from N-BK7 Schott glass, a popular material for optical components due to its excellent optical properties and versatility. The lens features a standard curve coating on both the front and back surfaces, specifically the EDM NIR-I coating. This coating is designed to enhance the lens' performance within the NIR spectrum, improving transmission and reducing reflection.
The lens has a center thickness of 1.5mm and an edge thickness of 2.45mm, providing a robust and durable design. The inner and outer radii are both 0mm, indicating a symmetrical design. The lens' base shape is circular, contributing to its wide range of potential applications.