KBC085AR.18 50.8 mm Dia. x -75 mm FL; IR coated; Double-Concave Lens 1000-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- MKS/Newport
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- -75 mm
- BFL
- -75.82 mm
- R1
- -77.94 mm
- R2
- 77.94 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167401204613524
- λ
- 589 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
KBC085AR.18 50.8 mm Dia. x -75 mm FL; IR coated; Double-Concave Lens 1000-1550nm
The KBC085AR.18 is a high-quality double-concave lens, designed and manufactured by MKS/Newport. This lens, with a diameter of 50.8 mm, is specifically engineered for use within the infrared spectrum, between 1000 and 1550 nanometers.
The lens features a significant focal length of -75 mm, making it ideal for a wide range of applications that require precise focusing of infrared light. The KBC085AR.18 is constructed from N-BK7 Schott glass, a material well-known for its excellent optical properties and versatility.
The lens geometry is characterized by its concave-concave shape, with a central thickness of 2.5 mm and an edge thickness of 9.36 mm. This design ensures efficient light transmission and minimal distortion. The lens also boasts an inner radius of 0 mm and an outer radius of 0 mm, further enhancing its optical performance.
The KBC085AR.18 is equipped with a New AR-18 coating on both the front and back surfaces. This anti-reflective coating is specifically designed to reduce surface reflections and increase transmission within the infrared spectrum, further enhancing the lens's performance and utility.