HO-BVL25-02C 25mm Dia. N-BK7 Double-Concave Lens; EFL=-50mm Single Layer MgF2
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Holmarc Opto-Mechatronics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -50 mm
- R1
- -53.09 mm
- R2
- 53.09 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-BVL25-02C 25mm Dia. N-BK7 Double-Concave Lens; EFL=-50mm Single Layer MgF2
This HO-BVL25-02C optical lens, sourced from Holmarc Opto-Mechatronics, is a double-concave spherical lens with a base shape of a circle. The lens has a diameter of 25mm and a center thickness of 2.5mm. The effective focal length (EFL) of this lens is -50mm, making it a negative or concave lens. The first radius of curvature (R1) is -53.085436mm, and the second radius of curvature (R2) is 53.085436mm. The inner and outer radii are both zero.
The lens is made of N-BK7, a type of glass commonly used in optical applications due to its excellent optical properties. The wavelength for this lens is 587.6nm. The lens is coated with a single layer of MgF2 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 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.
