Limo (now Focuslight) Fast Axis Correction (or Collimator) lens for 10mm wide laser diode emitter assemblies.

Model FAC 910,  0.91mm EFL, 0.09mm BFL (back focal length) this is how far you want the lens to be from the laser emitter. For 790-990nm laser diodes mostly 808nm.

Supplied with the first 125 orders is a min. 1cm long piece of  glass light pipe that is perfectly square. I will just score and snap off a piece. the light pipe is slightly larger than the lens so you can adjust the BFL and apply UV adhesive and expose it to UV or sunlight. And then apply the adhesive to the laser diode and adjust the lens ideally while observing with an IR scope while laser is under low power and cure the adhesive. I would recommend Norland # 60 UV adhesive.

See my items for sale for FAC lenses for other wavelengths.

Hard to find these individual lenses for sale. The only place I could find to buy one unit is Edmunds.

And they get a rather steep $165.00 each.

Sale is for one lens. I have 148 of these available. First 125 sold come with the attaching block.