49-109 15 mm Dia. L-BAL35 Precision Aspheric Lens; EFL=11.25mm; NA=0.66 BBAR 600-1050nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 15 mm
- EFL
- 11.25 mm
- BFL
- 6.85 mm
- R1
- 6.63 mm
- R2
Material
- Name
- L-BAL35
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5891276536746055
- λ
- 587.6 nm
- B1
- 1.1626263
- C1
- 0.0125957437 μm2
- B2
- 0.325661051
- C2
- -0.0032691105 μm2
- B3
- 1.35132486
- C3
- 119.214596 μm2
49-109 15 mm Dia. L-BAL35 Precision Aspheric Lens; EFL=11.25mm; NA=0.66 BBAR 600-1050nm
This is the 49-109 model from Edmund Optics, a high-precision aspheric lens with a 15 mm diameter. The lens is made from L-BAL35, a material specifically designed for use in the near-infrared spectrum. The lens has a numerical aperture (NA) of 0.66, which is a measure of its ability to gather light and resolve fine details. The effective focal length (EFL) of this lens is 11.25mm, making it suitable for use in a variety of optical systems.
The lens features broadband anti-reflection (BBAR) coating, which is designed to reduce surface reflections and increase transmission in the 600-1050nm wavelength range. This coating helps to improve the overall efficiency and performance of the lens. The lens has a center thickness of 7mm and an edge thickness of 1.94mm, providing excellent structural integrity and durability.
The aspheric design of this lens helps to reduce spherical aberration, a common optical distortion that can degrade image quality. The lens has a front radius of curvature (R1) of 6.628mm and a back radius (R2) of 0mm, which contributes to its excellent optical performance. The lens also has a front surface (k1) of -1.076527, which further enhances its ability to focus light accurately.
