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    • 4D Technology Corporation

    Tucson, AZ 85706

    COMPANY OVERVIEW

    About 4D Technology Corporation

    50

    Contact

    3280 E Hemisphere Loop
    Suite 146
     Tucson, AZ 85706
    United States
    http://www.4dtechnology.com
    520-294-5600
    520-294-5601

    More Info on 4D Technology Corporation

    4D Technology is a leader in innovative metrology products for measuring surface quality and surface defects on precision surfaces, as well as the surface and wavefront quality of optics. 4D’s patented Dynamic Interferometry®technology enables 4D’s laser interferometry products to measure in difficult environments, where vibration, air turbulence or rapid motion have traditionally prevented accurate measurement. 
    4D Technology is a subsidiary of Onto Innovation.  For more information visit www.4dtechnology.com.

    Products

    Videos

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    Home

    4D Technology: PhaseCam 6110 dynamic interferometer

    While at SPIE Optics + Photonics 2022, Erik Novak, vice president and general manager of 4D Technology, an Onto Innovation business, discusses the company’s PhaseCam 6110 dynamic...

    Articles

    (Image credit: 4D Technology)
    Test & Measurement

    Fizeau interferometer measures transparent surfaces down to 0.2 mm thick

    The AccuFiz Duo dynamic interferometer combines patented AccuFiz D short coherence capabilities with long coherence capabilities into a single system.
    FIGURE 1. Dynamic interferometry methods and configurations are shown.
    Test & Measurement

    The metrology story behind the James Webb Space Telescope

    James E. Millerd
    Producing NASA’s James Webb Space Telescope’s sophisticated optical system required new technology and methods to ensure its components can perform as designed—and it presented...
    4 D Technology
    Test & Measurement

    Laser interferometer and software combo features 4 Mpixel camera

    LFW Staff
    The PhaseCam 6110 interferometer features a new 4 Mpixel camera, with 0.0005 wv repeatability and 0.01 wv RMS precision.
    4d Technology Phasecam 6110
    Test & Measurement

    Laser interferometer for qualifying optical surfaces has compact form factor

    LFW Staff
    The PhaseCam 6110 laser interferometer features a lightweight, compact design to improve positioning, speed alignment, and lower installation costs.
    (Photo 88380469 © ibreakstock | Dreamstime.com)
    Dreamstime M 88380469
    Executive Forum

    4D Technology appoints new general manager

    LFW Staff
    Interferometry products developer 4D Technology has appointed Erik Novak, Ph.D., as its general manager.
    FIGURE 1. An optical profiler mounted on a robot provides roughness metrology for large or highly curved optics.
    Test & Measurement

    Robot-mounted optical profiler measures surface roughness

    Mike Zecchino
    A robot-mounted dynamic optical profiler provides automated roughness measurements for large and complex optics.
    A transparent dome mounted for measurement with a short coherence laser interferometer.
    Test & Measurement

    Short coherence laser interferometer measures transparent domes

    Mike Zecchino
    Combining a short coherence source with an adjustable path-match mechanism makes it possible to isolate and measure the front and back surfaces of transparent components as thin...
    FIGURE 1. In a Fizeau interferometer, the reflected beam from the reference surface and the reflection from the test surface combine and both reverse their direction, passing through the same optics on their way to the camera.
    Test & Measurement

    Interferometry: Tradeoffs in fixed vs. continuous-zoom interferometry factor into optics test optimization

    Digital-, discrete-, and continuous-zoom configurations can optimize testing of large and small optics with modern interferometers; however, each method has tradeoffs that users...
    (Courtesy of Blackmore)
    FIGURE 1. Four Blackmore lidar sensors are mounted atop a BMW X5 test vehicle on the road.
    Test & Measurement

    Photonics Products: Lidar Systems: Automotive lidar draws heavily on photonics industry

    John Wallace
    The overlap is large between automotive lidar and familiar names in the photonics industry.
    1804 Lfw Pro 3
    Detectors & Imaging

    4D Technology polarization camera uses CMOS sensors

    LFW Staff
    The PolarCam snapshot micropolarizer camera simultaneously captures four polarization states in each video frame.

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    Additional content from 4D Technology Corporation

    1801 Lfw Pro 2
    Test & Measurement

    4D Technology vertical digital radius slide uses laser interferometry

    LFW Staff
    The Vertical Digital Radius Slide (VDRS) allows precise radius of curvature (ROC) measurement of concave or convex optics.
    1509 Lfw Pro 9
    Test & Measurement

    Metrology module from 4D Technology provides sub-nanometer vertical resolution

    LFW Staff
    The FlexCam is a compact, high-resolution 3D metrology system for in situ roll-to-roll measurement of flexible electronics.
    4 D Technology
    Test & Measurement

    4D Technology introduces series of interferometer slides

    LFW Staff
    The digital radius slides provide accurate axial positioning for measuring the radius of curvature of concave or convex optics.
    10 Lfw 15 4dtech
    Test & Measurement

    4D Technology interferometer includes wavefront analysis software

    LFW Staff
    The AccuFiz interferometer is designed for surface shape and transmitted wavefront quality measurements at midspatial frequencies.
    04 Lfw 37 4dtech
    Test & Measurement

    4D Technology dynamic profiler measures surface roughness on large optics

    LFW Staff
    The NanoCam Sq dynamic profiler uses dynamic interferometry via a high-speed optical sensor.
    12 Lfw 1 4dtech
    Test & Measurement

    4D Technology laser interferometer uses dynamic interferometry

    LFW Staff
    The extended precision package for the PhaseCam 6000 more than doubles the laser interferometer’s precision in measuring the surfaces of optics.
    (Courtesy of John Hill/Large Binocular Telescope Observatory)
    FIGURE 1. Measurement of large optics, such as this 8 m primary mirror for the Large Binocular Telescope Observatory (see http://lbtwww.arcetri.astro.it/) require metrology systems that can function despite vibration, turbulence, and other challenges.
    Test & Measurement

    INTERFEROMETRY: Dynamic interferometry ensures quality of large telescope optics

    Mike Zecchino
    Meter-scale optical elements present a set of unique challenges, not just in fabrication but also to ensure conformance to specification. Dynamic interferometry offers speed and...
    Test & Measurement

    4D Technology introduces FizCam 2000

    LFW Staff
    Tucson, AZ--4D Technology is introducing of its latest Fizeau instrument, the FizCam 2000.
    FIGURE 1. The James Webb Space Telescope, for which the main contractor is Northrop Grumman Space Technology (Redondo Beach, CA), will have an 18-segment primary mirror with overall diameter of 6.5 m. This construction reflects the trend in segmentation of primary mirrors for terrestrial and space-based telescopes.
    Optics

    Test and Measurement: Multiple-wavelength interferometry measures large segmented mirrors

    Michael North-Morris
    Multiple-wavelength interferometry can provide a fast, high-quality alternative to contact profiling and scanning techniques.