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 354280 is an unmounted, uncoated aspheric lens released on November 25, 2020, with an effective focal length of 18.4 mm, a numerical aperture of 0.15, a working distance of 15.9 mm, and a design wavelength of 780 nm. Each unit features a package weight of 0.04 lbs, and its current lifecycle status is detailed in the manufacturer documentation. 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 354280. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.