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HO-BVL25-06B 25mm Dia. N-BK7 Double-Concave Lens; EFL=-150mm BBAR 400-700nm

HO-BVL25-06B 25mm Dia. N-BK7 Double-Concave Lens; EFL=-150mm 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
-150 mm
R1
-157.08 mm
R2
157.08 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-BVL25-06B 25mm Dia. N-BK7 Double-Concave Lens; EFL=-150mm BBAR 400-700nm

This is the HO-BVL25-06B 25mm Dia. N-BK7 Double-Concave Lens, a high-quality optical component sourced from Holmarc Opto-Mechatronics. The lens is characterized by its spherical shape and concave-concave base design, making it suitable for a wide range of optical applications.

The lens has a diameter of 25mm and a center thickness of 2.5mm, providing a robust and compact design. The effective focal length (EFL) is -150mm, indicating that it is a diverging lens, which spreads out light rays. This can be useful in applications such as beam expansion or image reduction.

The lens is made from N-BK7, a popular optical glass known for its excellent optical properties. This material is characterized by a low refractive index and low dispersion, making it ideal for broadband applications. The lens is coated with BBAR (Broadband Anti-Reflection) coating, which reduces reflection and increases transmission across the 400-700nm wavelength range.

The coating on both the front and back surfaces of the lens is "hol bbbar 0 aoi", which is a type of BBAR coating specifically designed for Holmarc lenses. This coating provides high transmission and low reflectance, enhancing the performance of the lens in various applications.

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