HO-PVL25-1.2B 25mm Dia. N-BK7 Plano-Concave Lens; EFL=-30mm BBAR 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Holmarc Opto-Mechatronics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -30 mm
- R1
- -15.65 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-PVL25-1.2B 25mm Dia. N-BK7 Plano-Concave Lens; EFL=-30mm BBAR 400-700nm
This is a Plano-Concave Spherical Lens, offered by Holmarc Opto-Mechatronics, with a diameter of 25mm and a center thickness of 2.5mm. The lens is designed with an Effective Focal Length (EFL) of -30mm, making it a negative or diverging lens. The inner radius is 0mm, and the outer radius is also 0mm, indicating a plano surface on one side and a concave surface on the other.
The lens is made of N-BK7, a popular optical glass from Schott, known for its excellent optical properties and wide transparency range. The lens is coated with BBAR (Broadband Anti-Reflection) coating, optimized for the wavelength range of 400-700nm, which provides low reflectance over a broad spectrum, enhancing the transmission of light.
The coating on both the front and back surfaces is "hol bbbar 0 aoi", suggesting a broadband anti-reflection coating with a 0-degree angle of incidence. This coating is designed to reduce surface reflections, thereby increasing the amount of light transmitted through the lens.