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2. Anti-scratch coating - Wikipedia

   en.wikipedia.org/wiki/Anti-scratch_coating

   Anti-scratch coating is a type of protective coating or film applied to an object's surface for mitigation against scratches. Scratches are small surface-level cuts left on a surface following interaction with a sharper object. Anti-scratch coatings provide scratch resistances by containing tiny microscopic materials with scratch-resistant ...

3. Surface imperfections (optics) - Wikipedia

   en.wikipedia.org/wiki/Surface_imperfections_(optics)

   This is a very basic surface characterization and is easy to achieve. It describes a scratch whose brightness is less than that of a scratch at visibility grade 80 and a dig with a diameter of up to 0.5 mm (50 hundredths = 50/100=0.5). 60-40 is considered "commercial" quality, while for demanding laser applications 20-10 or even 10-5 are used. [6]

4. Optical manufacturing and testing - Wikipedia

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

   Free-abrasive grinding is a technique to grind down the surface of a material before polishing. 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.

5. Precision glass moulding - Wikipedia

   en.wikipedia.org/wiki/Precision_glass_moulding

   Precision glass moulding is a replicative process that allows the production of high precision optical components from glass without grinding and polishing. The process is also known as ultra-precision glass pressing. It is used to manufacture precision glass lenses for consumer products such as digital cameras, and high-end products like ...

6. These 20 cult-favorite cleaning products have thousands of ...

   www.aol.com/lifestyle/cult-favorite-cleaning...

   Use the scrub pad holder and reusable scraper to removed burnt food to leave behind a streak-free polish and shine. "I use it with the hand sponge thing and that alone gets most of the stuff off ...

7. Self-cleaning glass - Wikipedia

   en.wikipedia.org/wiki/Self-cleaning_glass

   Self-cleaning glass is a specific type of glass with a surface that keeps itself free of dirt and grime. The field of self-cleaning coatings on glass is divided into two categories: hydrophobic and hydrophilic. These two types of coating both clean themselves through the action of water, the former by rolling droplets and the latter by sheeting ...

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