HO-BVL25-1.2C 25mm Dia. N-BK7 Double-Concave Lens; EFL=-30mm Single Layer MgF2
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Holmarc Opto-Mechatronics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -30 mm
- R1
- -32.53 mm
- R2
- 32.53 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
HO-BVL25-1.2C 25mm Dia. N-BK7 Double-Concave Lens; EFL=-30mm Single Layer MgF2
This is the HO-BVL25-1.2C 25mm Dia. N-BK7 Double-Concave Lens, a high-quality optical component sourced from Holmarc Opto-Mechatronics. The lens is characterized by its double-concave design, which features two concave surfaces that converge towards the center. This design is particularly useful in applications where beam divergence is required.
The lens has a diameter of 25mm and a center thickness of 2.5mm, making it suitable for use in compact optical systems. The effective focal length (EFL) of this lens is -30mm, indicating that it will cause incoming light to diverge. This makes it ideal for use in applications such as beam expansion or collimation.
The lens is made from N-BK7, a type of borosilicate glass that is known for its excellent optical properties. This material has a refractive index of 1.5168 at a wavelength of 587.6nm, making it suitable for use in a wide range of optical applications.
The lens is coated with a single layer of MgF2, which is applied to both the front and back surfaces. This coating is designed to reduce surface reflections, improving the overall transmission of the lens. The coating has a 0-degree angle of incidence (AOI), ensuring high performance across a wide range of incident angles.
More Lens
