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  2. Optical manufacturing and testing - Wikipedia

    en.wikipedia.org/wiki/Optical_manufacturing_and...

    It involves the use of small particles of grit to grind away small chips of material from the surface of an optical workpiece. The grit particles are known as free abrasives. The particles are added to a liquid slurry, which goes between a grinding plate and the material. Sliding motions between the grinding plate and the material are used. [4]

  3. Automated optical inspection - Wikipedia

    en.wikipedia.org/wiki/Automated_optical_inspection

    Automated optical inspection (AOI) is an automated visual inspection of printed circuit board (PCB) (or LCD, transistor) manufacture where a camera autonomously scans the device under test for both catastrophic failure (e.g. missing component) and quality defects (e.g. fillet size or shape or component skew). It is commonly used in the ...

  4. List of ISO standards 12000–13999 - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_standards_12000...

    ISO 12179:2000 Geometrical Product Specifications (GPS) – Surface texture: Profile method – Calibration of contact (stylus) instruments; ISO 12180 Geometrical product specifications (GPS) - Cylindricity ISO 12180-1:2011 Part 1: Vocabulary and parameters of cylindrical form; ISO 12180-2:2011 Part 2: Specification operators

  5. Optical glass - Wikipedia

    en.wikipedia.org/wiki/Optical_glass

    Optical glass refers to a quality of glass suitable for the manufacture of optical systems such as optical lenses, prisms or mirrors.Unlike window glass or crystal, whose formula is adapted to the desired aesthetic effect, optical glass contains additives designed to modify certain optical or mechanical properties of the glass: refractive index, dispersion, transmittance, thermal expansion and ...

  6. Pinhole occluder - Wikipedia

    en.wikipedia.org/wiki/Pinhole_occluder

    An improvised pinhole has a similar but better effect. The same principle has also been applied as an alternative to corrective lenses: a screen of pinholes is mounted on an eyeglass frame and worn as pinhole glasses. Differential diagnosis: pinhole worsen vision: Macular diseases, [5] central lens opacities [6] Vision static with pinhole ...

  7. Borescope - Wikipedia

    en.wikipedia.org/wiki/Borescope

    Schematic view of a rigid borescope Borescope in use, showing typical view through the device. A borescope (occasionally called a boroscope, though this spelling is nonstandard) is an optical instrument designed to assist visual inspection of narrow, difficult-to-reach cavities, consisting of a rigid or flexible tube with an eyepiece or display on one end, an objective lens or camera on the ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Optical lens design - Wikipedia

    en.wikipedia.org/wiki/Optical_lens_design

    Optical lens design is the process of designing a lens to meet a set of performance requirements and constraints, including cost and manufacturing limitations. Parameters include surface profile types (spherical, aspheric, holographic, diffractive, etc.), as well as radius of curvature, distance to the next surface, material type and optionally tilt and decenter.

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