89-292 50mm Dia. x 200mm 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
- 200 mm
- BFL
- 198.33 mm
- R1
- 205.86 mm
- R2
- -205.86 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
89-292 50mm Dia. x 200mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
This is a high-quality double-convex lens from the renowned optical components manufacturer, Edmund Optics. The lens, identified as item number 89-292, boasts a diameter of 50mm and a focal length of 200mm, making it suitable for a wide range of applications.
The lens is made from the high-grade material n-BK7 Schott, a borosilicate glass known for its excellent optical properties and durability. The lens's geometry features a thickness of 2mm at the edge and 5.05mm at the center, with radii of curvature of 205.86mm for the first surface and -205.86mm for the second surface. The back focal length is 198.33mm, and the lens has no inner or outer radius.
The lens is coated with YAG-BBAR, a highly durable and efficient coating that enhances its performance in the wavelength range of 500-1100nm. This coating reduces reflection and increases transmission, making the lens ideal for use in lasers, beam expanders, and other applications where high transmission and low loss are critical.