L-BCC023 12.5 mm Dia. Double-Concave Lens; EFL=-150mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Ross Optical
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- -150 mm
- R1
- -155.33 mm
- R2
- 155.33 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
L-BCC023 12.5 mm Dia. Double-Concave Lens; EFL=-150mm Uncoated
The L-BCC023 is a spherical lens with a base shape of circular, sourced from the renowned optical vendor, Ross Optical. This lens falls under the category of a bi-concave lens, characterized by its double-concave structure. The lens has a diameter of 12.5 mm and a thickness at the edge of 1.7 mm, while the center thickness measures 1.5 mm.
The effective focal length (EFL) of this lens is -150mm, indicating that it is a diverging lens, causing incoming light rays to spread out. This property makes it suitable for applications such as beam expansion or divergence. The lens's first radius of curvature (R1) is -155.3290707, and the second radius (R2) is 155.3290707, both measured in millimeters.
The L-BCC023 lens is made of N-BK7 Schott, a popular optical glass due to its excellent optical properties and high Abbe number. The wavelength for this lens is 587.6 nm. Notably, this lens does not come with any coating, which may affect its performance in certain applications. However, its uncoated state could be advantageous in applications where coating might introduce unwanted reflections or alter the lens's optical properties.