89-164 15mm Dia. x 60mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 15 mm
- EFL
- 60 mm
- BFL
- 59 mm
- R1
- 61.5 mm
- R2
- -61.5 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
89-164 15mm Dia. x 60mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
The 89-164 is a double-convex lens offered by Edmund Optics, boasting a diameter of 15mm and a focal length of 60mm. This lens is designed for use within the visible light spectrum, specifically between 350-700nm, making it suitable for a wide range of optical applications.
The lens is constructed from N-BK7 Schott, a popular optical glass due to its excellent optical properties and high Abbe number. This material ensures high transmittance and low dispersion, which are crucial for imaging and beam manipulation applications.
The 89-164 features a front and back coating of EDM VIS-EXT, a broadband anti-reflection coating designed for high transmission within the visible spectrum. This coating reduces surface reflections, enhancing the overall transmission and improving the lens' performance in bright environments or when dealing with high-power light sources.
The lens' geometry includes an inner radius of 0mm and an outer radius of 0mm, indicating a simple spherical design. The edge thickness measures 2.08mm, while the center thickness is 3mm. The back focal length is 59mm, slightly shorter than the focal length due to the double-convex design.
