49-111 15 mm Dia. L-BAL35 Precision Aspheric Lens; EFL=18.75mm; NA=0.4 BBAR 600-1050nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 15 mm
- EFL
- 18.75 mm
- BFL
- 15.92 mm
- R1
- 11.05 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
49-111 15 mm Dia. L-BAL35 Precision Aspheric Lens; EFL=18.75mm; NA=0.4 BBAR 600-1050nm
The 49-111 is a high-precision aspheric lens, boasting a 15 mm diameter and a numerical aperture (NA) of 0.4. This lens is sourced from Edmund Optics, a renowned vendor in the optical industry. The lens is made from L-BAL35, a material from Ohara, which is known for its excellent optical properties.
The lens is designed for use in the near-infrared (NIR) region, with a central wavelength of 587.6 nm. It features an effective focal length (EFL) of 18.75mm, making it suitable for a wide range of optical applications. The lens has a base shape of a circle, ensuring uniform light distribution.
The 49-111 lens comes with a broadband anti-reflection (BBAR) coating, which is applied to both the front and back surfaces. This coating is designed to operate within the 600-1050nm wavelength range, reducing surface reflections and improving transmission.
The lens has a thickness of 1.82mm at the edge and 4.5mm at the center. The front and back radii of curvature are 11.046mm and 0mm, respectively. The back focal length (BFL) is 15.92mm. The lens also features aspheric geometry, which helps to minimize spherical aberration and distortion, thereby improving image quality.
