Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Thorlabs
The Thorlabs ACL2520U-DG6-B is an aspheric condenser lens featuring an integrated 600-grit diffuser, a diameter of 25 mm, a focal length of 20.1 mm, and a numerical aperture of 0.60. Released on July 16, 2015, this optical component includes an anti-reflective coating optimized for the 650 nm to 1050 nm wavelength range and weighs 0.07 lbs per unit. To receive pricing for this part, submit your exact part number, quantity, and application requirements for a formal quote.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Thorlabs references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Thorlabs ACL2520U-DG6-B. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.