Line laser

A line laser is a device that employs a laser and an optical lens to project the laser[1] beam as a line rather than a point (e.g. laser pointer). This may be achieved by passing the beam through a cylindrical lens or a Powell lens.[2]

Line laser with interchangeable lenses

Depending on the application, independent line lasers may be used to generate lines, or multiple line lasers may be used together to produce crosses[3] or other composite patterns. In civil engineering and interior design, line lasers are used to assist in levelling building sites and structures.[4] Multiple lines may be generated for use with image processing.

Applications
Laser alignment crosshairs projected by a ring light which is mounted to a stereo microscope; the crosshairs facilitate rapid component location when transitioning between microscope and direct viewing

Media related to Line lasers at Wikimedia Commons

References
  1. "Kreuzlinienlaser Test". Bautomatik.de (in German). Retrieved 2020-11-28.
  2. "Powell Lens Buyer's Guide". Laserline Optics Canada. Retrieved 16 April 2020.
  3. "Use cases". redbacklasers.
  4. "Construction Laser Levels Explained". EngineerSupply. Retrieved 2019-09-28.
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