87-946 25mm Dia. x 40mm FL; Coated; Ge Plano-Convex Lens BBAR 3-12µm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 40 mm
- BFL
- 39.25 mm
- R1
- 120.16 mm
Material
- Name
- Germanium
- Dispersion Equation
- Sellmeier
- n (λ)
- 4.00355628065046
- λ
- 10600 nm
- B1
- 0.4886331
- C1
- 1.393959 μm2
- B2
- 14.5142535
- C2
- 0.1626427 μm2
- B3
- 0.0091224
- C3
- 752.19 μm2
87-946 25mm Dia. x 40mm FL; Coated; Ge Plano-Convex Lens BBAR 3-12µm
The 87-946 is a 25mm diameter, 40mm focal length plano-convex lens, manufactured by Edmund Optics. This lens is made of Germanium burnett, a material known for its excellent transmission properties in the infrared spectrum, making it ideal for applications in this range.
The lens features a broadband anti-reflection (BBAR) coating on both the front and back surfaces, which significantly reduces surface reflections and increases transmission. The coating is specifically designed for the 3-12µm wavelength range, further enhancing its performance in infrared applications.
The geometry of the lens includes a 2.35mm edge thickness and a 3mm center thickness. The inner and outer radii are both zero, indicating a plano surface on one side and a curved surface on the other. The radius of curvature of the curved surface is 120.16mm, and the back focal length is 39.25mm.
This lens is a great option for those seeking a high-performance, infrared-transmitting lens for their optical system. Its plano-convex design, combined with its high-quality coating and Germanium construction, make it a reliable and efficient component for a wide range of applications.
