首页
登录
职称英语
A new high-performance contact lens under development at the department for
A new high-performance contact lens under development at the department for
游客
2024-03-31
13
管理
问题
A new high-performance contact lens under development at the department for applied physics at the University of Heidelberg will not only correct ordinary vision defects but will enhance normal night vision as much as five times, making people’s vision sharper than that of cats.
Bille and his team work with an optical instrument called an active mirror—a device used in astronomical telescopes to spot newly emerging stars and far distant galaxies. Connected to a wave-front sensor that tracks and measures the course of a laser beam into the eye and back, the aluminum mirror detects the deficiencies of the cornea, the transparent protective layer covering the lens of the human eye. The highly precise data from the two instruments—which, Bille hopes, will one day be found at the opticians(眼镜商)all over the world—serve as a basis for the production of completely individualized contact lenses that correct and enhance the wearer’s vision.
By day, Bille’s contact lenses will focus rays of light so accurately on the retina(视网膜)that the image of a small leaf or the outline of a far distant tree will be formed with a sharpness that surpasses that of conventional vision aids by almost half a diopter(屈光度). At night, the lenses have an even greater potential. "Because the new lens—in contrast to the already existing ones—also works when it’s dark and the pupil is wide open," says Bille, "lens wearers will be able to identify a face at a distance of 100 meters"—80 meters farther than they would normally be able to see. In his experiments night vision was enhanced by an even greater factor: in semi-darkness, test subjects could see up to 15 times better than without the lenses.
Bille’s lenses are expected to reach the market in the year 30, and one tentative plan is to use the Internet to transmit information on patients’ visual defects from the optician to the manufacturer, who will then produce and mail the contact lenses within a couple of days. The physicist expects the lenses to cost about a dollar a pair, about the same as conventional one-day disposable lenses. [br] Individualized contact lenses are lenses designed _____.
选项
A、to work like an astronomical telescope
B、to process extremely accurate data
C、to suit the wearer’s specific needs
D、to test the wearer’s eyesight
答案
C
解析
根据第2段最后一句“作为生产完全个性化的隐形眼镜的基础。这种眼镜矫正并提高佩戴者的视力”,可知不同的人有不同的具体需求,必须测量他们的精确数据来设计,答案是C。
转载请注明原文地址:https://tihaiku.com/zcyy/3534178.html
相关试题推荐
Anewhigh-performancecontactlensunderdevelopmentatthedepartmentfor
Anewhigh-performancecontactlensunderdevelopmentatthedepartmentfor
Anewhigh-performancecontactlensunderdevelopmentatthedepartmentfor
Indepartmentstoresandclosetsallovertheworld,theyarewaiting.Their
Indepartmentstoresandclosetsallovertheworld,theyarewaiting.Their
Indepartmentstoresandclosetsallovertheworld,theyarewaiting.Their
“西部大开发”(WesternDevelopment)是中国促进经济发展的一项重要政策。自从实行改革开放的政策以来,尤其是中国东南沿海城市的经济特区(
研发工程师researchanddevelopmentengineer
建立联系establishcontactwith…
可持续发展sustainabledevelopment
随机试题
______thehustleandbustleofthebigcity,hedecidedtomovetothecountrysi
[originaltext]W:I’mgladthatyouwinthesingingcontest.Theawardmoneymay
Anycatordogownerwilltellyouthattheirpethasanindividualpersonali
对
关于确定专利权的保护范围的问题,各国在专利保护实践中所采取的理论和做法很不相同,
申请注册建筑师初始注册应当具备的条件中,不包含以下哪项?( )A.依法取得执业
王女士,36岁,部门经理,身高160cm,体重65kg,血压146/92mmHg
男,32岁。发热3天,晕厥1次,心电图显示三度房室传导阻滞,心室率40次/分,下
《招标投标法》规定,对于依法必须进行招标的项目,招标人应给予投标人编制投标文件的
简述企业员工晋升管理。
最新回复
(
0
)