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Three piece mount
| Глоссарий терминов и сокращений по оптическим линзам |
A rimless frame style with frame parts that attach to each lens with screws or some other type of mounting device. in essence, when not held together by lenses, the frame chassis is in three pieces: right endpiece temple, left endpiece temple and bridge.
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Tint density, английский
Tints may be a variety of different hues with the same coloration density which determines how much opacity of color is present.
Thin film coating, английский
Generally refers to the ultra thin ar coating produced in a vacuum chamber.
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