23-862 25mm Dia. Fused Silica Precision Laser Aspheric Lens; EFL=75mm; NA=0.16 Laser V-Coat 1064nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 75 mm
- BFL
- 70.9 mm
- R1
- 35.71 mm
- R2
Material
- Name
- Fused Silica
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4760718803801622
- λ
- 355 nm
- B1
- 0.6961663
- C1
- 0.00467914825849 μm2
- B2
- 0.4079426
- C2
- 0.013512063073959999 μm2
- B3
- 0.8974794
- C3
- 97.934002537921 μm2
23-862 25mm Dia. Fused Silica Precision Laser Aspheric Lens; EFL=75mm; NA=0.16 Laser V-Coat 1064nm
This is the 23-862 model from Edmund Optics, a 25mm diameter Fused Silica Precision Laser Aspheric Lens, specifically designed for use with a 1064nm wavelength and featuring a Laser V-Coat. The lens boasts an effective focal length (EFL) of 75mm and a numerical aperture (NA) of 0.16, making it suitable for a variety of applications.
The lens is made from fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock. The aspheric design of the lens helps to reduce spherical aberration, which is particularly beneficial in high-precision applications.
The Laser V-Coat on both the front and back of the lens is specifically designed for use with a 1064nm wavelength. This coating helps to increase the lens's durability and resistance to laser damage, while also reducing reflection and improving transmission.
The lens has a center thickness of 5.5mm and an edge thickness of 3.78mm. The front and back radii are 35.707mm and 0mm respectively, and the lens has a back focal length (BFL) of 70.9mm. The lens's shape is defined as aspheric, and it has a conic constant of -0.668.
