47-712-INK 18 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=125mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 18 mm
- EFL
- 125 mm
- R1
- 76.92 mm
- R2
- -55.48 mm
Material 1
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5185223876207927
- λ
- 550 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
Material 2
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6771143911586193
- λ
- 550 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
47-712-INK 18 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=125mm VIS 0° 425-675nm
The 47-712-INK is an 18 mm diameter achromatic doublet lens, designed and manufactured by Edmund Optics. This lens is specifically engineered for visible light applications, with a wavelength range of 425-675nm. The lens boasts an effective focal length (EFL) of 125mm, making it suitable for a wide range of optical systems.
The lens is composed of two elements, made from N-BK7 and N-SF5 Schott glass. These materials are chosen for their excellent optical properties, contributing to the lens' high-performance capabilities. The lens features a standard anti-reflection coating on both the front and back surfaces, further enhancing its performance by reducing unwanted reflections and increasing transmission.
The lens geometry is carefully designed, with a center thickness of 4.5mm and edge thickness of 5.72mm. The radii of curvature for the three surfaces are r1=76.92mm, r2=-55.48mm, and r3=-162.59mm. This configuration ensures optimal image quality and minimal aberrations.
The 47-712-INK is currently in stock and available for immediate purchase through the Edmund Optics website. With its high-quality materials, precise geometry, and wide wavelength range, this lens is an excellent choice for a variety of optical applications.
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