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
Manufactured by Thorlabs, the 352140-C is an unmounted Geltech aspheric lens featuring a focal length of 1.45 mm, a numerical aperture of 0.55, and an antireflection coating for 1050-1600 nm, released on August 12, 2008. Although this lifecycle-discontinued item has been officially replaced by model 354140-C, it remains available through special order. Submit the exact part number, quantity, and application requirements for a quote on pricing and lead times.
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 352140-C. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.