• Ø25.4 mm Plano-Convex Lens
• Material: Vacuum-Grade UV Magnesium Fluoride
• Wavelength Range: 200 nm – 6.0 µm Wavelength Range
• Focal Length: 100 mm
• Surface Quality: 40-20 Scratch-Dig

The LA6005 Magnesium Fluoride (MgF₂) Plano-Convex Lens is a popular choice for applications in the 200.0 nm – 6.0 µm spectral range. Magnesium Fluoride is extremely durable in comparison to other materials that reach this far down into the UV or out into the IR. The C-axis is oriented to minimize birefringence. See graph below for transmission percentages within the wavelength range.

Plano-convex lenses focus a collimated beam to the back focus and collimate light from a point source. To minimize the introduction of spherical aberration, a collimated light source should be incident on the curved surface of the lens when being focused and a point light source should be incident on the planar surface when being collimated. This lens has a positive focal length and near-best-form shape for infinite and finite conjugate applications.

• Lens Shape: Plano / Convex
• Material: Vacuum-Grade UV Magnesium Fluoride
• Wavelength Range: 200 nm – 6 µm
• Index of Refraction at 630 nm: 1.377
• Surface Quality: 40-20 Scratch-Dig
• Surface Flatness (Plano Side): ?/2
• Spherical Surface Power (Convex side): 3?/2
• Surface Irregularity: ?/4
• Centration: =3 arcmin
• Clear Aperture: >90% of Diameter
• Thickness Tolerance: ±0.2 mm
• Diameter Tolerance: +0.00/-0.10 mm
• Focal Length Tolerance: ±2% at 633 nm
• Diameter: 25.4 mm
• f: 100 mm
• R: 37.8 mm
• t_c: 4.3 mm
• t_e: 2.1 mm
• f_b: 97.1 mm
• Suggested Fixed Lens Mount: LMR1 and SM1L05