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 LJ1267RM-B is a mounted plano-convex round cylindrical lens featuring a focal length of 250.0 mm, a diameter of 1 inch, and an N-BK7 glass composition with an antireflective coating for the 650 to 1050 nm wavelength range. This component weighs 0.06 lbs and has a release date of November 19, 2009, with lifecycle status available in current manufacturer documentation. Currently in stock overseas, this part is ready for procurement. 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 LJ1267RM-B. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.