89-291 50mm Dia. x 150mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 150 mm
- BFL
- 147 mm
- R1
- 153.49 mm
- R2
- -153.49 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
89-291 50mm Dia. x 150mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
Discover the 89-291 Double-Convex Lens, a high-quality optical component designed and manufactured by Edmund Optics. This lens boasts a 50mm diameter and a focal length of 150mm, making it suitable for a wide range of applications.
The lens is constructed from Schott's renowned n-BK7 glass, known for its excellent optical properties and versatility. The base shape is circular, and the lens features a double-convex geometry, with radii of curvature of 153.49mm on both the front and back surfaces. This geometry ensures efficient light collection and focusing.
The 89-291 lens is coated with YAG-BBAR, a highly durable and efficient coating that enhances its performance in the 500-1100nm wavelength range. This coating reduces surface reflections, improving transmission and increasing the lens's overall efficiency.
The lens has a thickness of 4.9mm at the edge and 9mm at the center, providing robustness and stability. The inner and outer radii are 0mm, indicating a uniform curvature throughout the lens.