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ILX Lightwave > Product Accessories

Collimating Lenses
Collimating Lenses


Many applications require collimation of the high divergence light from laser diodes. ILX currently offers a choice of five laser diode collimating lenses for this purpose. ILX's lenses feature multiple glass elements and are corrected for low wavefront distortion at wavelengths from 5141550nm. The lenses vary primarily in their numerical aperture and working distance. All lenses have a barrel diameter of 14.25mm and length of 15.0mm.

All lenses are either single or multi-layer antireflection coated. The AR coatings have a nominal damage threshold of 500MW/cm². The damage resistance of all lenses is wavelength, pulsewidth, and pulse rate dependent. Therefore, this value is provided as a guideline and no warranty is implied.
Model Number of Elements Nominal Focal Length Numerical Aperture Wavelength Range Field of View Diameter Collimated Beam Diameter Working Distance Window Thickness Correction Lens Diameter Lens Length Wavefront Distortion (at 633nm)

LDM-4014 3 5.0mm 0.50 514-830nm 0.14mm 5.0mm 2.37mm 0.30mm 7.5mm 7.0mm <λ/20
LDM-4015 3 5.0mm 0.50 600-1020nm 0.14mm 5.0mm 2.37mm 0.30mm 9.0mm 9.0mm <λ/20
LDM-4017 3 7.5mm 0.30 780-890nm 0.12mm 4.5mm 2.89mm 0.17mm 9.0mm 10.0mm <λ/20
LDM-4018 3 5.0mm 0.50 1300-1550nm 0.13mm 5.0mm 2.42mm 0.30mm 9.0mm 9.0mm <λ/20
LDM-4019 3 9.0mm 0.25 780-880nm 0.20mm 4.5mm 3.10mm 0.17mm 10.0mm 12.5mm <λ/20




Last updated: April 22, 2005