L-BCC008 12.7 mm Dia. Double-Concave Lens; EFL=-25mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Ross Optical
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- -25 mm
- R1
- -26.46 mm
- R2
- 26.46 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-BCC008 12.7 mm Dia. Double-Concave Lens; EFL=-25mm Uncoated
The L-BCC008 is a 12.7 mm diameter Double-Concave Spherical Lens, sourced from the renowned optical vendor, Ross Optical. This lens is designed for use in systems where a negative focal length is required, with an Effective Focal Length (EFL) of -25mm.
The lens features a base shape of Circular geometry, with a thickness of 3.75mm at the edge and 2.5mm at the center. The double-concave design is characterized by two radii of curvature, R1 and R2, which are -26.46378652mm and 26.46378652mm respectively. These radii determine the curvature of the lens surfaces and contribute to its negative focal length.
The L-BCC008 is made from N-BK7 Schott, a popular optical glass known for its excellent optical properties and versatility. The wavelength for this lens is 587.6nm, which is within the visible light spectrum.
Notably, this lens is uncoated. Coatings are often applied to lenses to enhance their performance by reducing reflections, increasing transmission, or providing other desirable optical properties. However, the absence of a coating in this lens suggests that it may be intended for specific applications where a coating is not necessary or desirable.
For more information and availability, please refer to the vendor's website link provided: http://catalog.rossoptical.com/catalog/simple-lenses/bi-concave/