89-025 20.0mm Dia. x 50.0mm FL; Plano-Convex Lens Laser V-Coat 785nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 50 mm
- BFL
- 47.87 mm
- R1
- 25.84 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5110795649082278
- λ
- 785 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
89-025 20.0mm Dia. x 50.0mm FL; Plano-Convex Lens Laser V-Coat 785nm
The 89-025 is a Plano-Convex spherical lens, characterized by its circular base shape and a diameter of 20.0mm. This lens is designed with a long focal length of 50.0mm, making it suitable for a variety of applications that require precise focusing. The lens has a thickness of 1.22mm at the edge and 3.23mm at the center, providing a robust structure while maintaining a sleek profile.
The lens is made from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low auto-fluorescence. This material is particularly suitable for applications in the near-infrared region, such as laser systems and optical communication. The lens's design includes an inner radius of 0mm and an outer radius of 0mm, ensuring a smooth light path and minimal distortion.
The 89-025 is coated with Edmund Optics Laser V-Coat 785nm on both the front and back surfaces. This coating enhances the lens's performance in the 785nm wavelength range, improving transmission and reducing reflection. The coating also provides excellent environmental resistance, ensuring the lens maintains its performance even in challenging conditions.