HO-BVL25-20B 25mm Dia. N-BK7 Double-Concave Lens; EFL=-500mm BBAR 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Holmarc Opto-Mechatronics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -500 mm
- R1
- -522.1 mm
- R2
- 522.1 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-BVL25-20B 25mm Dia. N-BK7 Double-Concave Lens; EFL=-500mm BBAR 400-700nm
This is a HO-BVL25-20B 25mm diameter N-BK7 double-concave lens, featuring an effective focal length (EFL) of -500mm and broadband anti-reflection (BBAR) coating optimized for the 400-700nm wavelength range. The lens is sourced from Holmarc Opto-Mechatronics, a reputable vendor in the optical industry.
The lens is designed with a spherical geometry, having a diameter of 25mm and a center thickness of 2.5mm. Its concave-concave base shape is characterized by radii of curvature R1 (-522.095368) and R2 (522.095368), with no inner or outer radius specified.
The lens is made of N-BK7 glass, a popular material in the optical industry due to its excellent optical properties. The BBAR coating on both the front and back surfaces enhances transmission and reduces unwanted reflections, making it suitable for various applications within the specified wavelength range.
The item data indicates that this lens is in stock and available for purchase. To learn more about this product, visit the Holmarc Opto-Mechatronics website through the provided link: https://www.holmarc.com/bi_concave_lenses.php
