LoginContactCountry Selection
  • Eyewear Lexicon

    Eyewear Lexicon

 Eyewear Lexicon

Mono Block Hinge

A hinge piece with an integrated rim lock piece.

Mineral Lens

A lens made of glass. While heavier than plastic lenses, it is more scratch-resistant.

Mirror Coating

A lens coating which makes the lens reflective like a mirror.  By reducing the amount of sunlight that passes through the lens, glare is limited; as such this coating is often used for sport sunglasses.

Nickel Titanium (Nt)

A highly elastic memory titanium alloy. It is comprised of 50% nickel and 50% titanium.

Nose Pad

Used as a pair, they rest on either side of the nose and help to support glasses.

Nose-Pad Arm

The arm piece connecting the front piece and the nose pad.  It can be adjusted to position the frame.

Pure Titanium

A titanium material that is made of 99% genuine titanium. Excluding the screws and washers, CHARMANT's Pure Titanium frames are completely made of titanium. It is lightweight, corrosion-resistant, and hypoallergenic.

Precision Laser Welding

A welding technique which utilizes laser energy. Far more precise than conventional welding, it joins parts without damaging the material.  It provides a much stronger weld; and allows for the most delicate of pieces to be connected.  LineArt CHARMANT utilizes precision laser welding.


A latter production process in which frames are smoothed with wood chips and walnut shells in a tumbling barrel for several hours.



A traditional and classic lens shape, reminiscent of a rounded upside down triangle. Traditional and classic.


The distance between the center of a person’s pupils.  

This pupillary distance measurement is used when creating lenses to ensure the optical center of each lens is lined up to the wearer’s pupils for optimal visual clarity.

PC lens

A lens made of Polycarbonate. Polycarbonate lenses are thinner and lighter weight than traditional plastic lenses.  Its durability and scratch-resistance make these lenses ideal for sport style sunglasses and rimless styles.

Polarized Lens

A lens that eliminates horizontal glare, or reflected light, from surfaces such as water, sand, roads, and snow.  Great for driving and water-related activities.

Photochromic Lens

A lens that adjusts its darkness level based on the degree of light exposure.  The brighter the light, the darker the lens will be. 

Progressive Lens

A multifocal lens with gradual corrective powers changing from far- to nearsighted corrections. It offers a clean appearance without the borders of the different focal areas and the most natural visual correction of all multiple corrective lenses.