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 350570-A is an unmounted Geltech aspheric lens featuring a focal length of 2.84 mm and a numerical aperture of 0.67, released on December 13, 2005. This component includes an antireflective coating specified for the 400 to 600 nm wavelength range and has a lifecycle status of discontinued. Submit the exact part number, quantity, and application requirements for a quote on this discontinued item based on its last web presentation.
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 350570-A. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.