1. a device that produces a parallel beam of light or other radiation
Usage: optics; physics
2. a device used in medical imaging to restrict and direct radiation beams
Usage: medical

Examples

• The telescope’s collimator ensures that light rays travel in parallel paths.
• Scientists adjusted the laser collimator to create a precise beam.
• The X-ray machine uses a collimator to focus radiation on the target area.
• Optical collimators are essential components in many scientific instruments.
• The radiotherapy equipment includes a multi-leaf collimator for precise treatment.
• Astronomers rely on collimators to improve telescope image quality.