89-228 9mm Dia. x 45mm 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
- 9 mm
- EFL
- 45 mm
- BFL
- 44.17 mm
- R1
- 46.08 mm
- R2
- -46.08 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
89-228 9mm Dia. x 45mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
The 89-228 is a high-quality Double-Convex Lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 9mm and a focal length of 45mm, is designed for use in a wide range of optical applications, particularly those requiring precise focusing and imaging.
The lens is constructed from Schott's n-BK7 glass, a material well-known for its excellent optical properties, including a high refractive index and low dispersion. This ensures superior image quality and minimizes optical aberrations.
The 89-228 features a YAG-BBAR coating on both the front and back surfaces. This advanced coating, designed for the wavelength range of 500-1100nm, enhances the lens's performance by reducing surface reflections and increasing transmission. The coating also provides excellent environmental stability, making the lens suitable for use in various conditions.
The lens's geometry is meticulously designed, with a central thickness of 2.5mm and an edge thickness of 2.06mm. The radii of curvature for the front and back surfaces are 46.08mm and -46.08mm, respectively, contributing to the lens's double-convex shape. The back focal length is 44.17mm, and the lens has no inner or outer radius, indicating a uniform thickness.
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