87-921 5.0mm Dia. x 25.0mm 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
- 5 mm
- EFL
- 25 mm
- BFL
- 23.95 mm
- R1
- 12.92 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
87-921 5.0mm Dia. x 25.0mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm
This is a Plano-Convex lens, type 87-921, with a 5.0mm diameter and a focal length of 25.0mm, specifically designed for use in the near-infrared (NIR) spectrum. The lens is sourced from Edmund Optics, a leading vendor in the optical industry.
The lens is made of N-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. It has a refractive index of 1.5168 at 587.6nm, making it suitable for a wide range of optical applications.
The lens features a standard curve coating on both the front and back surfaces, specifically the EDM NIR-II std curve. This coating enhances the lens's performance in the NIR spectrum, particularly in the 750-1550nm range, by reducing surface reflections and increasing transmission.
The lens's geometry includes a thickness of 1.36mm at the edge and 1.6mm at the center. The radius of curvature (R1) is 12.92mm, and the back focal length (BFL) is 23.95mm. The lens does not have an inner or outer radius.
According to the vendor's website, the lens is currently in stock, making it readily available for immediate use.
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