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
2023-08-16
18
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/2932247.html
相关试题推荐
Anewhigh-performancecontactlensunderdevelopmentatthedepartmentfor
Anewhigh-performancecontactlensunderdevelopmentatthedepartmentfor
Anewhigh-performancecontactlensunderdevelopmentatthedepartmentfor
Indepartmentstoresandclosetsallovertheworld,theyarewaiting.Their
Indepartmentstoresandclosetsallovertheworld,theyarewaiting.Their
Indepartmentstoresandclosetsallovertheworld,theyarewaiting.Their
Internationalgovernments’inactionconcerningsustainabledevelopmentiscl
Internationalgovernments’inactionconcerningsustainabledevelopmentiscl
Internationalgovernments’inactionconcerningsustainabledevelopmentiscl
经过几千年的发展,这类戏曲艺术才逐渐变得完整。Itwasnotuntilseveralthousandyearsdevelopmentthat
随机试题
[originaltext]M:Isthistableinthecornerokay?W:Sure,wecansithere.Be
[originaltext]Mathewlivedinabigcity,andalwayshadhishaircutbythe
[originaltext]W:WearequiteinterestedinyournylonT-shirt.ButIamafraid
某桥梁桥台采用扩大基础,桥墩采用钻孔灌注桩基础。为确保基础施工质量符合设计要求,
诊断闭经的病因,需要做到:()A.闭经伴有更年期综合征的,要注意卵巢
美术演示教学的目的是()。A.直观讲解美术知识 B.激发学习者的探究欲望
下列表述正确的有()。 Ⅰ.总需求曲线是反映总需求与利率之间关系的曲线
患者男,50岁,频渴,多尿,近6个月体重减轻,视力下降,检测空腹血糖8.0mmo
国家电网公司变电检测管理规定中规定无法正常使用的仪器仪表应及时申请进行()。
其他β-内酰胺类抗生素的主作用靶位是A.细菌核蛋自体50S亚基 B.细菌胞浆
最新回复
(
0
)