67-625 12mm Dia. x 30mm 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
- 12 mm
- EFL
- 30 mm
- BFL
- 28.75 mm
- R1
- 30.36 mm
- R2
- -30.36 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
67-625 12mm Dia. x 30mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
This is a 12mm diameter by 30mm focal length double-convex lens, specifically designed for use in the near-infrared (NIR) spectrum. The lens is sourced from Edmund Optics and is currently in stock. It is made from N-BK7 Schott glass, a material well-known for its excellent optical properties and versatility.
The lens features a standard curve coating on both the front and back surfaces, specifically the EDM NIR-II std curve. This coating is designed to optimize the lens' performance in the NIR II range, which spans from 750nm to 1550nm.
The geometry of the lens includes a center thickness of 3.7mm and an edge thickness of 2.5mm. The front and back radii are 30.36mm and -30.36mm respectively, resulting in a back focal length of 28.75mm. The lens is spherical in shape, a common design choice for its simplicity and wide range of applications.