1. to make (rays of light or other radiation) parallel
Usage: technical; optics
2. to adjust the line of sight of (an optical instrument)
Usage: technical; optics

Examples

• The telescope collimates starlight to produce clear images.
• The laser system collimates the beam before transmission.
• She collimates the microscope before each experiment.
• The engineer collimates the optical equipment daily.
• This lens collimates the scattered light rays.
• The technician collimates the instrument using precise adjustments.