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 ACL5040U-DG15-A is an aspheric condenser lens featuring an integrated 1500 Grit diffuser, a diameter of 50 mm, and a focal length of 40 mm. This component provides a numerical aperture of 0.60 and includes an antireflection coating specified for the 350 nm to 700 nm wavelength range. Each unit has a package weight of 0.38 lbs and follows the lifecycle status provided in current manufacturer documentation released on July 16, 2015. Submit the exact part number, quantity, and application requirements to request a 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 ACL5040U-DG15-A. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.