AC254-050-C-ML In Stock

The AC254-050-C-ML by ThorLabs is a high-quality achromatic doublet that boasts a diameter of Ø1". This lens is designed to control chromatic aberration, making it a popular choice when aiming for a diffraction-limited spot with a monochromatic source, such as a laser. The AC254-050-C-ML can be easily identified with an engraving of the focal length, part number, and surface antireflection coating.

The AC254-050-C-ML also boasts an engraved arrow that points from the larger radius of curvature to the smaller one. This arrow indicates the recommended direction of light propagation for collimating a point source. If you're focusing a collimated beam instead, simply point the arrow in the opposite direction of light propagation. Furthermore, this lens features an infinity symbol denoting its infinite conjugate ratio. The light rays emerging from the curved side will be collimated if a diverging light source is placed away form the lens’ flatter side by one focal length. This makes the AC254-050-C-ML an ideal choice for the IR spectral range, and it has been computer optimized for infinite conjugate ratios. Its design wavelengths are 1016 nm, 1330 nm, and 1550 nm.