| 摘要 |
The spectacle has colored eyepieces provided with optical power of 0.15-0.30 diopter, and presenting a tint whose transmission coefficient for a wavelength lower than 430 nanometers is reduced to 60 percentages and total transmission factor in a visible spectrum is around 74 percentages. The eyepieces are made of polycarbonate using a three layer anti-reflecting treatment, and covered by an anti-scratch silicone based varnish. The transmission coefficient of the tint is around 105 percentages for red, 102 percentages for green and 100 percentages for blue.
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