HO-BVL50-20C 50mm Dia. N-BK7 Double-Concave Lens; EFL=-1000mm Single Layer MgF2
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Holmarc Opto-Mechatronics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- -1000 mm
- R1
- -1043.76 mm
- R2
- 1043.76 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-BVL50-20C 50mm Dia. N-BK7 Double-Concave Lens; EFL=-1000mm Single Layer MgF2
This is a HO-BVL50-20C 50mm diameter N-BK7 double-concave lens, featuring an effective focal length (EFL) of -1000mm and a single layer MgF2 coating on both the front and back surfaces. The lens is sourced from Holmarc Opto-Mechatronics, a reputable vendor in the optical industry.
The lens is designed with a base shape of a circle and has a spherical geometry. The diameter of the lens measures 50mm, and the center thickness is 2.5mm. The first radius of curvature (R1) is -1043.762884, while the second radius of curvature (R2) is 1043.762884. The lens does not have an inner or outer radius.
The lens is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties. The wavelength for this lens is 587.6nm. The lens features a single layer MgF2 coating on both the front and back surfaces, which is indicated by "hol mgf2 0 aoi". This coating helps to reduce reflection and increase transmission, enhancing the overall performance of the lens.
The lens is currently in stock and available for purchase. For more information, please refer to the vendor's website at https://www.holmarc.com/bi_concave_lenses.php.