Anti visual fatigue glasses
The invention is anti visual fatigue glasses, and relates to the glasses used for work, study and life. By changing hue of the glasses, reflected lights of objects and external world are changed, thereby facilitating improvement of visual environment and obtaining effects of anti-vision fatigue and...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention is anti visual fatigue glasses, and relates to the glasses used for work, study and life. By changing hue of the glasses, reflected lights of objects and external world are changed, thereby facilitating improvement of visual environment and obtaining effects of anti-vision fatigue and myopia prevention. Technical indicators of the colored light are that a main wavelength range is 540 to 570 nm, a lightness L* is 90 +/- 5, and chromaticity indexes a* is -4.0 to -12.0, and b* is 8.0 to 20.0. The anti visual fatigue glasses are advantageous in that a white light and a reflected light of the white light are filtered by the anti-visual fatigue glasses and the filtered light (transmitted light) is green and yellow phases; the spectral luminous efficiency of the?anti-visual fatigue glasses is more than or equal to 0.9520; the anti-visual fatigue glasses overcome influences of white light that is strong in light and weak in color on vision, and facilitate the normal development of visual functions. The |
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