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  2. Sodium-vapor lamp - Wikipedia

    en.wikipedia.org/wiki/Sodium-vapor_lamp

    This construction led the General Electric Company to use the tradename "Lucalox" for its line of high-pressure sodium lamps. Xenon at a low pressure is used as a "starter gas" in the HPS lamp. It has the lowest thermal conductivity and lowest ionization potential of all the stable noble gases. As a noble gas, it does not interfere with the ...

  3. Metrologic Instruments - Wikipedia

    en.wikipedia.org/wiki/Metrologic_Instruments

    In 1975, after breakthroughs in bar coding technology, it developed the world's first hand-held helium–neon laser bar code scanner. These bar code scanners use a broad array of technologies including laser, holographic, vision-based, and radio-frequency identification (RFID). The scanners help merchants process bar-coded merchandise. [1]

  4. Structured-light 3D scanner - Wikipedia

    en.wikipedia.org/wiki/Structured-light_3D_scanner

    Compared to 3D laser scanning, structured-light scanners can offer advantages in speed and safety by using non-coherent light sources like LEDs or projectors instead of lasers. This approach allows for relatively quick data capture over large areas and reduces potential safety concerns associated with laser use.

  5. Laser scanning - Wikipedia

    en.wikipedia.org/wiki/Laser_scanning

    Laser scanning is the controlled deflection of laser beams, visible or invisible. [1] Scanned laser beams are used in some 3-D printers, in rapid prototyping, in machines for material processing, in laser engraving machines, in ophthalmological laser systems for the treatment of presbyopia, in confocal microscopy, in laser printers, in laser shows, in Laser TV, and in barcode scanners.

  6. Laser projector - Wikipedia

    en.wikipedia.org/wiki/Laser_projector

    A laser projector is a device that projects changing laser beams on a screen to create a moving image for entertainment or professional use. [1] It consists of a housing that contains lasers, mirrors , galvanometer scanners, and other optical components.

  7. White light scanner - Wikipedia

    en.wikipedia.org/wiki/White_light_scanner

    A white light scanner (WLS) is a device for performing surface height measurements of an object using coherence scanning interferometry with spectrally-broadband, "white light" illumination. Different configurations of scanning interferometer may be used to measure macroscopic objects with surface profiles measuring in the centimeter range, to ...

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