SLB-50.8B-150NIR2 50.8 mm Dia. x -149.5 mm FL; Coated; Double-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- -149.5 mm
- BFL
- -150.5 mm
- R1
- -155.7 mm
- R2
- 155.7 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.518720636186463
- λ
- 546.1 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
SLB-50.8B-150NIR2 50.8 mm Dia. x -149.5 mm FL; Coated; Double-Concave Lens 750-1550nm
The SLB-50.8B-150NIR2 is a high-quality double-concave lens, 50.8 mm in diameter, and featuring a focal length of -149.5 mm. This lens is sourced from OptoSigma, a renowned vendor known for their precision optical components.
The lens is made from n-bk7 schott, a popular material in the optical industry due to its excellent optical properties. It is designed to operate within the wavelength range of 546.1 nm, making it suitable for a wide range of applications.
The lens features a unique spherical geometry, with a center thickness of 3 mm and an edge thickness of 7.2 mm. The radii of curvature for the first and second surfaces are -155.7 mm and 155.7 mm, respectively. The back focal length of the lens is -150.5 mm, and it has no inner or outer radius.
The SLB-50.8B-150NIR2 is coated with opt ir2 on both the front and back surfaces. This coating enhances the lens's performance within the infrared spectrum, specifically between 750 nm and 1550 nm. The coating ensures high transmission and low reflection, making it ideal for use in IR applications.