67-589 50.0mm Dia. x 500.0mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 175 mm
- BFL
- 169.05 mm
- R1
- 90.44 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
67-589 50.0mm Dia. x 500.0mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm
The 67-589 is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a 50.0mm diameter and a 500.0mm focal length, making it suitable for a wide range of applications. The lens is made from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low dispersion.
The lens features a standard curve coating on both the front and back surfaces, specifically the EDM NIR-II coating. This coating is designed to enhance the lens' performance in the near-infrared (NIR) spectrum, specifically between 750nm and 1550nm. This makes the lens ideal for applications that require high-quality imaging or light transmission in the NIR range, such as night vision, thermal imaging, or scientific research.
The lens has a center thickness of 9mm and an edge thickness of 5.48mm, providing a balance between durability and light transmission. The inner and outer radii are 0mm, indicating a uniform curvature. The effective focal length (EFL) of the lens is 175mm, and the back focal length (BFL) is 169.05mm.
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