48-693 6mm Dia. x -12mm FL; VIS 0deg Coated; Double-Concave Lens 425-675nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 6 mm
- EFL
- -12 mm
- BFL
- -12.33 mm
- R1
- -12.57 mm
- R2
- 12.57 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
48-693 6mm Dia. x -12mm FL; VIS 0deg Coated; Double-Concave Lens 425-675nm
The 48-693 is a spherical lens with a base shape of a circle, sourced from the reputable vendor, Edmund Optics. This lens falls under the category of a Spherical Lens (Concave-Concave) and is designed for use in the visible light spectrum, specifically between 425-675nm.
The lens has a diameter of 6mm and a center thickness of 1mm, with an edge thickness of 1.59mm. It boasts an effective focal length (EFL) of -12mm, making it a double-concave lens. The front and back surfaces of the lens are coated with the EDM VIS-0 STD CURVE coating, which is designed for use in the visible light spectrum.
The lens's first radius of curvature (R1) is -12.57mm, while the second radius of curvature (R2) is 12.57mm. The back focal length (BFL) is -12.33mm. The lens does not have an inner or outer radius.
The lens is made of n-BK7 Schott material, a high-quality optical glass known for its excellent transparency and low dispersion. This material is widely used in various optical applications due to its superior optical properties.