HO-BVL50-04C 50mm Dia. N-BK7 Double-Concave Lens; EFL=-200mm Single Layer MgF2
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Holmarc Opto-Mechatronics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- -200 mm
- R1
- -209.58 mm
- R2
- 209.58 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-BVL50-04C 50mm Dia. N-BK7 Double-Concave Lens; EFL=-200mm Single Layer MgF2
This HO-BVL50-04C lens is a high-quality optical component manufactured by Holmarc Opto-Mechatronics. It is a double-concave spherical lens, characterized by its concave-concave base shape and circular geometry. The lens has a diameter of 50mm and a center thickness of 2.5mm, making it suitable for a wide range of optical applications.
The lens's effective focal length (EFL) is -200mm, indicating that it is a diverging lens, which spreads out light rays. This property is crucial in applications such as beam expansion, image reduction, and other scenarios where light needs to be spread out.
The lens is made of N-BK7, a popular optical glass from Schott, known for its excellent optical properties and wide transparency range. This material is particularly suitable for applications in the visible spectrum, as demonstrated by the wavelength of 587.6nm specified in the item data.
The lens features a single layer of MgF2 coating on both the front and back surfaces. This coating is designed to reduce reflection and increase transmission, enhancing the lens's performance in its intended application. The coating is applied at 0 degrees angle of incidence (AOI), ensuring uniform coverage and optimal performance.
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