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HO-BVL25-12B 25mm Dia. N-BK7 Double-Concave Lens; EFL=-300mm BBAR 400-700nm

HO-BVL25-12B 25mm Dia. N-BK7 Double-Concave Lens; EFL=-300mm BBAR 400-700nm

Type
Lens
Subtype
Spherical Lens (Concave-Concave)
Brand
Holmarc Opto-Mechatronics
Product webpage
Holmarc Opto-Mechatronics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25 mm
EFL
-300 mm
R1
-313.48 mm
R2
313.48 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-BVL25-12B 25mm Dia. N-BK7 Double-Concave Lens; EFL=-300mm BBAR 400-700nm

This is a HO-BVL25-12B 25mm diameter N-BK7 double-concave lens, featuring an effective focal length (EFL) of -300mm and broadband anti-reflection (BBAR) coating optimized for the 400-700nm wavelength range. The lens is sourced from Holmarc Opto-Mechatronics, a reputable vendor known for its high-quality optical components.

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 circular, with radii of curvature R1 and R2 specified as -313.48273mm and 313.48273mm, respectively. The lens does not have an inner or outer radius.

The lens is made of N-BK7 Schott glass, a popular material for optical applications due to its excellent homogeneity, low optical dispersion, and high transmittance in the visible spectrum. The lens features BBAR coating on both the front and back surfaces, which significantly reduces reflection losses and improves overall transmission within the specified wavelength range.

The item data indicates that this lens is in stock and available for immediate purchase. Users can access the vendor's website through the provided weblink for more information or to place an order.

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