Optical comparators

Article Abstract:

Optical comparators have improved since their introduction in the early 20th century. Significant improvements in optical comparator design include the integration of automatic edge sensing features and microprocessor-controlled measurement systems. Recent designs are easy to use, require minimum operator training and are available in several models ranging from bench models with 14-inch screens to more complex floor models with 30-inch or larger screens.

Product development, Quality control equipment

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Know your optical comparator basics

Article Abstract:

Manufacturing industries must be aware of important factors to consider in purchasing quality-inspection equipment such as optical comparators. Managers must consider their specific application needs at present and in the near future before making decisions. The many factors to consider include lens magnification and screen size, choice of model, optics, worktable assembly type, and other features such as automatic edge detection.

Optical Comparators, Usage, Equipment and supplies, Process control

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Precise mirror optics

Article Abstract:

The extremely high resolution of the x-ray telescope of NASA's soon-to-be-launched Advanced X-ray Astrophysical Facility space observatory was achieved by assembling the High Resolution Mirror Assembly in ultraclean rooms. The assembly process utilized a centroid detector to detect misalignment of the mirrors to within 0.01-arc.sec tilt, 0.001-mm lateral displacement and 0.016 mm in axial position.

Research and Development in the Physical, Engineering, and Life Sciences, Space Sciences, Optical Astronomy Instruments, Methods, Production management, Orbiting astronomical observatories, Astronomical satellites, Optics, Astronomical instruments, X-ray telescope, X-ray telescopes, Space optics, Space optics (Instruments)

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