TRH127-020-A-ML 12.7 mm Dia. N-SF5/N-K5 Mounted Hastings Achromatic Triplet; EFL=20mm 400-700nm

This is the TRH127-020-A-ML Hastings Achromatic Triplet Lens, a high-quality optical component sourced from Thorlabs. The lens is designed for use in the 400-700nm spectral range, making it suitable for a wide range of applications in the visible spectrum.

The lens is a mounted triplet, meaning it consists of three individual lenses mounted together to form a single optical element. This design helps to reduce chromatic aberration, a common issue in optical systems where different wavelengths of light are focused at different points. The Hastings configuration is a specific type of achromatic triplet that provides superior color correction.

The lens has a diameter of 12.7mm and a thickness of 9.3mm at the edge. The inner and outer radii are 0mm, and the radii of the three lens surfaces are r1=14.9mm, r2=8.3mm, r3=-8.3mm, and r4=-14.9mm. The thickness at the center of the first and third lenses is 2mm, and 8mm for the second lens.

The lens is made from N-SF5 and N-K5 Schott glass, which are known for their excellent optical properties. The front and back surfaces of the lens are coated with the THo TRH127-020-A coating to enhance its performance and durability.

This lens is a Muliplet type, which means it is a compound lens made up of several simple lenses arranged in a specific configuration. The multiplet design allows for more complex optical corrections than a single lens, making it a versatile tool for a wide range of optical applications.

The item data provided indicates that this lens is in stock and available for purchase from Thorlabs. For more information, including pricing and availability, please refer to the vendor's website using the provided weblink.