Large-diameter and large-base-curve resin lens
The invention discloses a large-diameter and large-base-curve resin lens. The diameter of the resin lens varies between 78cm and 90cm, and the base curve radian varies between 300 and 600. The resin lens disclosed by the invention can be used for producing sun glasses for the myopia, and wearers can...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a large-diameter and large-base-curve resin lens. The diameter of the resin lens varies between 78cm and 90cm, and the base curve radian varies between 300 and 600. The resin lens disclosed by the invention can be used for producing sun glasses for the myopia, and wearers cannot feel dizzy after use, so that effects in use of the lens are improved. Meanwhile, the resin lens with such structure can be conveniently mounted on all types of spectacle frames. |
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