KBC019AR.18 12.7 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
- 12.7 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
KBC019AR.18 12.7 mm Dia. x -75 mm FL; IR coated; Double-Concave Lens 1000-1550nm
The KBC019AR.18 is a high-quality double-concave lens, designed and manufactured by MKS/Newport, a renowned vendor in the optical industry. This lens is specifically engineered for use within the infrared spectrum, between 1000 and 1550 nanometers, making it ideal for a wide range of IR applications.
The lens features a base shape of a circle, with a diameter of 12.7 millimeters. It has a center thickness of 2.5 millimeters and an edge thickness of 2.92 millimeters, providing a robust and durable structure. The effective focal length (EFL) of this lens is -75 millimeters, and it has a back focal length (BFL) of -75.82 millimeters, ensuring precise focusing capabilities.
The KBC019AR.18 is made from N-BK7 Schott, a high-grade optical glass known for its excellent optical properties and chemical resistance. This material ensures high transmission and low absorption across the IR spectrum.
The lens is coated with a new AR-18 coating on both the front and back surfaces. This anti-reflective coating is specifically designed to minimize surface reflections and increase transmission in the infrared region, further enhancing the lens's performance in its intended application.
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