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Sports eyewear
专利权人:
UK Optical Plastics Limited
发明人:
Antoine Yvon Messiou
申请号:
GB201721513
公开号:
GB2569596A
申请日:
2017.12.20
申请国别(地区):
GB
年份:
2019
代理人:
摘要:
An article of eyewear 1 comprises a shade 4. The shade 4 is shaped and positioned not to obscure the field of view of the wearer when looking straight ahead but to obscure the field of view of the wearer when looking either upwards or downwards, apart from in the areas of two unobscured apertures 5. The apertures have front and rear openings that define longitudinal axes which are aligned with the wearer’s eyes and converge at a fixation point F. The apertures may be slots extending from an edge of the shade and areas of transparent material in opaque material of the shade. The distance between the front and rear openings may be at least 20mm or at least twice the width of the rear aperture opening. The rear aperture opening width may be not less than 4mm. The longitudinal axes of the apertures may converge at an angle of between 1 and 5 degrees. The eyewear may further comprise an optical element over one of the apertures providing horizontal optical power such as a prismatic element. The eyewear is suited to sports such as tennis or skiing where it can reduce the effects of glare or sun blindness.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/
相关发明人
antoine yvon messiou
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