Request Info4D Technology CorporationTUCSON, Ariz., March 5, 2015 — The AccuFiz Fizeau compact laser interferometer from 4D Technology Corp. allows accurate, repeatable measurement of surface shape and transmitted wavefront quality. Designed for use in production environments and metrology labs, the device features long-range wireless remote control, motorized tip-tilt and a variable-sensitivity alignment system. It offers wavelengths from 355 nm to 10.6 mu;m, apertures from 33 to 800 mm and horizontal and vertical mounting configurations. The device can be used to optimize for test conditions and reduce artifacts from dust, defects and stray...See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 8/31/2021Laser InterferometerThe PhaseCam 6110 Laser Interferometer from 4D Technology Corp. is designed for qualifying optical surfaces. 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SCHOTT MINIFAB (formerly...PHOTONICS HANDBOOK ARTICLESPhotonics HandbookInterferometry: Measuring with Light: Long applied to optical shop testing, interferometry is now used to measure many different types of parts in a variety of applications, such as optical system performance, surface roughness, surface form, and displacement of moving surfaces.An interferometer is an instrument that compares the position or surface structure of two objects. The basic two-beam division of amplitude interferometer components consists of a light source, a...Photonics HandbookMeasuring Aspheres: Selecting the Best Technique: The metrology method should match the nature of the part and the inspection constraints.The benefits of aspheric lenses are numerous: They allow for a reduction in spherical aberrations and are ideal for focusing or collimating light, as they can achieve a low ƒ-number. Aspheres...Photonics HandbookAspheric Lenses: Optimizing the Design: This second of two articles discusses the tools optical designers need to tailor their designs to the appropriate manufacturing process, optimizing the cost of component fabrication.With the understanding of aspheric lens manufacturing provided in part one of this article, designers have the tools to optimize their aspheres; the next step is to understand how to specify and...Photonics HandbookAspheric Lenses: Design Considerations: This first of two articles will cover design and manufacturing options for aspheres; the second will include more detail on manufacturing and testing processes. 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The virtual event will comprise four technology tracks — Lasers, Optics, Sensors and Detectors, and Imaging...Photonics.com 1/11/2022Computer-Generated Hologram Metrology Alignment: Challenges and SolutionsComputer Generated Hologram (CGH) metrology has several benefits, such as 1/100th wave accuracy and snapshot measurement time. However, alignment of aspheric and freeform parts in CGH setups can be...Photonics.com 1/11/2023Minimizing Interferometric Measurement Variations During Optical ManufacturingOptical manufacturing has become increasingly challenging as specifications tighten for wavefronts, form, slopes, and mid-spatial frequency features. Interferometers are essential tools to control...Photonics.com 9/2/2021Quantum Sensing in Atomic and Solid-State SystemsThe discrete electronic energy levels in atoms and atom-like systems and the ability to probe and control them using their interactions with electromagnetic fields have enabled a host of applications...PHOTONICS DICTIONARY+ TERMSEDU.photonics.com 3/11/2016interferometerAn instrument that employs the interference of lightwaves to measure the accuracy of optical surfaces; it can measure a length in terms of the length of a wave of light by using interference...EDU.photonics.com 9/8/2009phase-modulated sensorA type of sensor used in interferometers to compare the phase of light detected by a sensing fiber with that of a reference fiber. The two single-mode fibers are illuminated by the same coherent...EDU.photonics.com 9/8/2009Fabry-Perot interferometerA multiple-beam interferometer, usually consisting of two flat plates, with high reflective ability. The plates are set parallel to one another by spacers so that lightwaves may bounce back and forth...EDU.photonics.com 9/8/2009lens testing equipmentDevices such as spherometers, lensometers, lens benches, knife-edge devices, interferometers and MTF equipment for testing the single elements of a lens and the completed lens assembly.VIDEOSPhotonics.com 12/6/2022Telecentric Lenses - Shanghai OpticsTelecentric Lenses are widely used in metrology instruments, laser marking systems, and AOI (Automatic Optical Inspection) machines. Here’s a 360 view of one of our custom Telecentric Lenses which...Photonics.com 10/27/2022Introduction to Verifire Asphere+ - Zygo CorporationThe next era of fast, noncontact, high-resolution 3D metrology of aspheric optics is here! VFA+ pushes the boundaries of what is possible in the design and production of precise aspheric surfaces....Photonics.com 3/4/2022CTL - Continuous - Toptica PhotonicsThe CTL is the ultimate choice when looking for a laser that is widely and continuously tunable without any mode-hops. It has high power, a narrow linewidth, and low drift. Scans can be performed...Photonics.com 10/27/2022Zygo Management Re-Brand PodcastHear first-hand from our management team about the thought process behind Zygo's rebrand and how it went down.PHOTONICS BUYERS' GUIDE CATEGORIESLUPI InterferometersOptical Testing InstrumentsFizeau InterferometersA fizeau interferometer is a type of interferometer noted for producing narrow multiple-beam interference fringes. As a result, when compared with the Twyman-Green, the Fizeau interferometer has...Mach Zehnder InterferometersA Mach Zehnder interferometer is an interferometer derived from the Twyman-Green interferometer. Light passing through a sample region in one direction recombines with a second leg without traversing...COMPANIESPhotonics Buyers' Guide4D Technology Corporation4D Technology designs and manufactures laser interferometers, surface roughness profilers, snapshot micropolarizer cameras, and handheld surface gauges, for accurate measurement of optics, optical...Photonics Buyers' GuideLaCroix Precision OpticsOptics that Defend, Build, Cure and Discover The LaCroix name is synonymous with quality precision optics. Since 1947, three generations of family leadership have placed LaCroix Precision Optics...Photonics Buyers' GuideFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...Photonics Buyers' GuideOZ Optics LimitedEstablished in 1985, OZ Optics is a leading worldwide supplier of fiber optic components, test equipment and sensors. OZ Optics manufactures its products in three locations, Ottawa (Canada),...