... исследований при освещенностях 55000 лк, 45000 лк, 10000 лк, 5500 лк, 2000 лк, 550лк и 300лк на расстоянии до 20м и в телесном угле до 60°. The results of experimental researches of perceived textual information quality from explosion-proof luminous displays by several manufacturers in dependence of lighting conditions, distances and sight level are given. Materials and methods Testing was conducted by two methods: the method ...

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