Request Info4D Technology CorporationA dynamic, on-axis Fizeau interferometer for measuring optical-quality surfaces. Surface-separation technology lets you test plane parallel flats, concentric domes, spheres, or isolate surfaces in optical systems. Short coherence distinguishes surfaces as close as 200 μm. Beam expanders up to 600 mm, 636 nm (visible), or 1053 nm (IR) for measuring at operating wavelength.See full productRelated content from Photonics MediaPRODUCTSBioPhotonics Jan/Feb 2022 IssueDeep-UV Raman SystemThe uvPro deep-UV Raman system from Spectralence Corp. is a portable device featuring an integrated, 261-nm laser source. The system’s high-performance spectrometer features an...Photonics Spectra March 2023 IssueInertial Measurement UnitsTAC-450 Inertial Measurement Units from Emcore Corp. feature a compact design, robust performance, and survivability to meet the needs of commercial and military platforms. 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