67-593 3mm Dia. x 9mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 3 mm
- EFL
- 9 mm
- BFL
- 8.46 mm
- R1
- 9.02 mm
- R2
- -9.02 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
67-593 3mm Dia. x 9mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
The 67-593 is a high-quality double-convex lens, designed and manufactured by Edmund Optics, a leading global provider of optical components. This lens boasts a 3mm diameter and a focal length of 9mm, making it a versatile choice for a wide range of applications.
The lens is crafted from n-BK7 Schott, a highly respected optical glass known for its excellent transparency and low auto-fluorescence. This material makes the lens particularly suitable for use in the near-infrared (NIR) spectrum, specifically between 750nm and 1550nm.
The 67-593 lens features a unique coating on both the front and back surfaces. This coating, known as the EDM NIR-II std curve, is specifically designed to enhance performance in the NIR spectrum. It ensures high transmission rates and reduces unwanted reflections, thereby improving overall image quality.
The lens geometry is another notable feature. With an edge thickness of 1.35mm and a center thickness of 1.6mm, the lens is robust and durable. The radii of curvature for the front and back surfaces are 9.02mm and -9.02mm respectively, contributing to the lens's double-convex shape. The back focal length is 8.46mm, and the effective focal length is 9mm.