89-432 25mm Dia. N-BK7 Hyperbolic Aspheric Lens; EFL=50mm; NA=0.25 Laser V-Coat 532nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 50 mm
- BFL
- 50 mm
- R1
- 25.97 mm
- R2
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5194725830654814
- λ
- 532 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
89-432 25mm Dia. N-BK7 Hyperbolic Aspheric Lens; EFL=50mm; NA=0.25 Laser V-Coat 532nm
The 89-432 is a high-quality aspheric lens from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 25mm, is designed for use with a wavelength of 532nm and features a laser V-coat, ensuring optimal performance in laser applications.
The lens's geometry is intricately designed, with an inner radius of 0mm and an outer radius of 0mm. The thickness at the edge is 1.49mm, and the effective focal length (EFL) is 50mm. The lens's front surface is defined by a hyperbolic curve with a radius of 25.969998937827043mm, while the back surface is planar. The thickness at the center of the lens is 4.3mm.
The lens's numerical aperture (NA) is 0.25, indicating a wide acceptance angle and high light-gathering capability. The lens is made from N-BK7 Schott glass, a popular material for its high refractive index and low dispersion.
The lens features a laser V-coat on both the front and back surfaces, specifically designed for 532nm. This coating enhances the lens's performance in laser applications by reducing reflections and improving transmission.
