89-242 12mm Dia. x 30mm 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
- 12 mm
- EFL
- 30 mm
- BFL
- 28.75 mm
- R1
- 30.36 mm
- R2
- -30.36 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
89-242 12mm Dia. x 30mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm
The 89-242 is a high-quality double-convex lens, boasting a diameter of 12mm and a focal length of 30mm. This lens is sourced from the reputable optical vendor, Edmund Optics, and is currently in stock, as indicated by its weblink status.
The lens is constructed from the high-grade material, n-BK7 Schott, a borosilicate crown glass known for its excellent optical properties. The lens features a front and back coating of EDM YAGBBAR 500-1100, a broadband anti-reflection coating designed for use in the 500-1100nm wavelength range. This coating enhances the lens's performance by reducing surface reflections and increasing transmission, thereby improving overall image quality.
The lens's geometry is characterized by a thickness edge of 2.5mm and a thickness center of 3.7mm. The lens's effective focal length (EFL) is 30mm, while the back focal length (BFL) is 28.75mm. The first and second radii of curvature (R1 and R2) are 30.36mm and -30.36mm, respectively. The lens's inner and outer radii are both zero, indicating a circular shape.