67-438 2.5mm Dia. x 5.0mm 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
- 2.5 mm
- EFL
- 5 mm
- BFL
- 4.57 mm
- R1
- 4.25 mm
Material
- Name
- N-LASF9
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.8502442055719617
- λ
- 587.6 nm
- B1
- 2.00029547
- C1
- 0.0121426017 μm2
- B2
- 0.298926886
- C2
- 0.0538736236 μm2
- B3
- 1.80691843
- C3
- 156.530829 μm2
67-438 2.5mm Dia. x 5.0mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm
The 67-438 is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a diameter of 2.5mm and a focal length of 5.0mm, making it a compact yet powerful optical component. The lens is made from the material n-lasf9 schott, a detail that could be crucial for users looking for specific material properties.
The lens features a front and back coating of edm nir-ii std curve, which is particularly noteworthy as it enhances the lens' performance in the near-infrared spectrum, specifically between 750nm and 1550nm. This coating makes the lens ideal for applications that require high transmission in the NIR-II range.
The geometry of the lens is also worth noting. It has a thickness of 0.61mm at the edge and 0.8mm at the center. The inner and outer radii are both 0, indicating a flat surface on one side and a curved surface on the other. The radius of curvature (r1) is 4.25mm, and the back focal length (bfl) is 4.57mm. The effective focal length (efl) is 5mm.
