ACL1815U-A ø18 mm Aspheric Condenser Lens; f=15 mm, NA=0.57 AR 350-700nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 18 mm
- EFL
- 15 mm
- BFL
- 10 mm
- R1
- 7.82 mm
- R2
Material
- Name
- B270
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5211287259304818
- λ
- 633 nm
- B1
- 1.03620383
- C1
- 0.00636947962 μm2
- B2
- 0.249213863
- C2
- 0.0225584069 μm2
- B3
- 0.860667704
- C3
- 108.489755 μm2
ACL1815U-A 18 mm Aspheric Condenser Lens; f=15 mm, NA=0.57 AR 350-700nm
The ACL1815U-A is an 18 mm Aspheric Condenser Lens offered by Thorlabs. This lens is designed with a focal length of 15 mm and a numerical aperture of 0.57, making it suitable for a wide range of applications. The lens is made from b270 Schott, a high-quality optical glass, and features a standard anti-reflection coating for the wavelength range of 350-700nm.
The lens has a circular base shape with an outer radius of 0 mm and an inner radius of 0 mm. The diameter of the lens is 18 mm, and it has a thickness of 2 mm at the edge and 8.2 mm at the center. The front and back surfaces of the lens are coated with a broadband anti-reflection coating, denoted as 'tho a bbar'. This coating helps to reduce surface reflections, thereby increasing the amount of light transmitted through the lens.
The lens also features an aspheric surface, which helps to reduce spherical aberration and improve the overall image quality. The aspheric surface is defined by the following parameters: r1=7.818, r2=0, a2 front=0, a4 front=0.000293, a6 front=0, a8 front=0, a10 front=0, and a12 front=0. The back focal length of the lens is 10 mm.
