Request InfoBristol Instruments Inc.Bristol Instruments has introduced the 157 Series optical thickness gauge for manufacturers whose development and production processes require precise thickness information about materials such as specialty plastic films, medical membranes and ophthalmic products. The device measures absolute thickness of single or multiple layers to an accuracy of ±0.1 µm and with a repeatability of ±0.05 µm. The measurements are continuously referenced to a built-in standard of length.See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 2/19/2024Laser Wavelength MetersThe 872A-VIS and 872A-NIR from Bristol Instruments are laser wavelength meters that support laser measurements from 375 to 1700 nm. 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