Request InfoBristol Instruments Inc.The 137 series of interferometric thickness gauges from Bristol Instruments Inc. measures absolute thickness to an accuracy of ±1 μm with a repeatability of ±0.05 μm. The gauges' noncontact technique enables measurement of both hard and soft materials without damage or deformation. All material layers are measured simultaneously. Applications include measurement of plastic films, medical membranes, glass tubing and ophthalmic products. The gauges can measure top-wall and bottom-wall thickness, outer and inner diameters, and center thicknesses and sagittal...See full productRelated content from Photonics MediaPRODUCTSVision Spectra Summer 2023 IssueTelecentric LensesThe TC4MHRP and TC4MHRP CORE high-resolution telecentric lenses from Opto Engineering are designed for sensors up to 4/3-in. 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In a television picture tube, the crossing of the...EDU.photonics.com 9/8/2009visually coupled airborne systems simulator (VCASS)A visual system including a tiny television tube and imaging optics, all contained in a helmet to be worn by pilots in flight simulator training.PHOTONICS BUYERS' GUIDE CATEGORIESCCTV LensesMachine Vision LensesBeam Focusing EquipmentTelevision LensesCOMPANIESPhotonics 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' GuideShanghai Optics Inc.ISO 9001 & ISO 13485 certified and D&B DUNS # 113515303 Shanghai Optics is an unparalleled custom system solution provider offering advance precision custom optical design, engineering,...Photonics Buyers' GuideFresnel Technologies Inc.Fresnel Technologies Inc. is an expert manufacturer of molded plastic optics, including Fresnel lenses and related optical components, as well as infrared transmitting materials and optics made from...Photonics Buyers' GuideLambda Research Optics Inc. (USA)Lambda Research Optics, Inc. is a leading manufacturer of laser optics with high power thin-film coatings and high precision fabrications. Lambda serves a wide range of industries, such as Biotech,...