Request Info4D Technology CorporationThe PhaseCam® 6100 is an extremely compact, lightweight interferometer for measuring flats, spheres, aspheres and optical systems. With an internal source, 4-MP sensor and motorized controls, the PhaseCam is ideal for measurements in challenging locations — without vibration isolation — including on the factory floor, in measurement towers and in cleanrooms. 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However, characterizing ultrathin films provides a challenge for mainstream metrology tools such as...Photonics HandbookInterferometry: Measuring with LightAn 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 HandbookDynamic Interferometry: Getting Rid of the JittersConditions on the factory floor and in industrial cleanrooms with high-capacity air filtration systems can hamper the use of interferometry. Another problem is the testing of large-aperture mirrors...Photonics HandbookMeasuring Aspheres: Selecting the Best TechniqueThe 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. 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