在"英语"词典里focometer}的意思

在英语中FOCOMETER的发音

focometer  [fəʊˈkɒmɪtə]

FOCOMETER在英语中的意思是什么？

Focometer

Focometer

焦点仪是一种测量屈光不正的仪器，旨在为农村或经济弱势群体提供球形眼镜处方，而无需复杂的协议，昂贵的设备或电力。 焦点仪是单眼和手持式的，通常用于自然采光。 患者旋转焦点上的颈圈，直到达到最佳对焦。 然后将个体的屈光度读出线性屈光度。 焦点仪是由Drs开发的。 得克萨斯州休斯敦休斯顿视光学院的Ian Berger和Larry Spitzberg，为人类视觉中的屈光不正提供了一种简便而廉价的方法。 便携式手持式仪器非常适用于偏远和贫困地区。 测心仪测量球面屈光不正。 散光也可以使用设备的“时钟目标”进行测量。 然而，一项研究发现，焦点仪比自动折射仪识别散光效率较低，其轴精度限制在15°。

A focometer is an instrument that measures refractive errors and is intended to provide rural or economically disadvantaged populations spherical eyeglass prescriptions without the need for complicated protocols, expensive equipment, or electricity. The focometer is monocular and hand-held, and is normally used in natural lighting. Patients rotate a collar on the focometer until the best focus is achieved. The individual's refractive power is then read off a linear dioptre scale. The focometer was developed by Drs. Ian Berger and Larry Spitzberg at the University of Houston College of Optometry in Houston, Texas, to provide a simple, inexpensive means for measuring refractive error in human vision. The portable, hand-held instrument is highly appropriate for use in remote and poor areas. Focometers measure spherical refractive errors. Astigmatism can also be measured using a "clock target" with the device. A study has found, however, that the focometer is less effective for identifying astigmatism than an autorefractor, and that its axis accuracy is limited to 15°.

在英语 词典里focometer的定义

字典中的focometer的定义是用于测量镜头焦距的工具。

FOCOMETER的翻译

通过我们的英语多语言翻译器,找到focometer的25种语言翻译

该章节所呈现的将focometer由 英语向其他语言的翻译是通过自动统计翻译获得的；在英语中基本的翻译单位是单词«focometer»。

• 翻译者英语 - 中文: focometer
• 翻译者英语 - 西班牙语: focómetro
• 英语: focometer
• 翻译者英语 - 印地语: focometer
• 翻译者英语 - 阿拉伯语: focometer
• 翻译者英语 - 俄语: focometer
• 翻译者英语 - 葡萄牙语: focometer
• 翻译者英语 - 孟加拉语: focometer
• 翻译者英语 - 法语: focomètre
• 翻译者英语 - 马来语: Focometer
• 翻译者英语 - 德语: focometer
• 翻译者英语 - 日语: 焦点距離測定器
• 翻译者英语 - 韩语: focometer
• 翻译者英语 - 印尼爪哇语: Focometer
• 翻译者英语 - 越南语: focometer
• 翻译者英语 - 泰米尔语: focometer
• 翻译者英语 - 马拉地语: केंद्रबिंदू
• 翻译者英语 - 土耳其语: focometer
• 翻译者英语 - 意大利语: focometer
• 翻译者英语 - 波兰语: focometer
• 翻译者英语 - 乌克兰语: focometer
• 翻译者英语 - 罗马尼亚语: focometer
• 翻译者英语 - 希腊语: focometer
• 翻译者英语 - 布尔语(南非荷兰语): focometer
• 翻译者英语 - 瑞典语: focometer
• 翻译者英语 - 挪威语: focometer

与 «FOCOMETER»相关的英语书籍

在以下的参考文献中发现focometer的用法。与focometer相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。

Eye Diseases: Advances in Research and Treatment: 2011 Edition

from Boston, MA (mean age, 24.3 y +/- 1.5) and 50 from Nicaragua (mean age, 40 y +/- 13.7) were recruited. (performed on right eye only) included (1) AdSpecs, adjustable spectacles; ( 2) Focometer, focusable telescope; (3) Predetermined ...

‎2012

The Rotarian

—A.R. PARSONS, Rotarian, and MARJORIE PARSONS Monticello, Illinois, U.S.A. "Focometer" a real find Volunteers of Vision in Mexico [May] really produced results for our 3-H (Health, Hunger, and Humanity program) project. We received ...

‎

Step by Step Innovations in Presbyopia Management with ...

Subjective Focometer-induced Accommodation — A focometer is a monocular Badal optometer similar to a handheld telescope. A manual focusing ring allows the spherical optical power to be increased or decreased; but unlike the stepwise  ...

Garg, 2006

Mastering the Techniques of Presbyopia Surgery

Problems with this method include difference in blur interpretation or task interpretation by subject from one occasion to the next.10 3. Subjective Focometer — Induced Accommodation — A focometer is a monocular Badal optometer similar to ...

‎2006

Encyclopedia of Nineteenth-Century Photography

The origins of this third 'Focimeter' can be traced back to Thomas R Dallmeyer's ' Focometer' which was an optical test bench designed to ascertain lens focal length and check the extent to which aberrations had been corrected. It is unclear  ...

John Hannavy, 2013

Soviet Journal of Optical Technology

INSTRUMENTS The F-1 focometer M. V. Dorofeeva, O. A. Klochkova, Yu. G. Kozhevnikov, Yu. P. Kontievskii, and A. A. Kholopova (Submitted August 15, 1978) Opt. Mekh. Promst. 46, 17-18 (July 1979) An instrument is described for measuring ...

Low vision care

Where the lens power to be measured is beyond the range of the focometer, the lens to be measured is placed in the instrument and the auxiliary concave lenses placed in contact with the exposed surface. A simple method of determining the ...

Edwin B. Mehr, Allan N. Freid, 1975

Royal Society of London Cataloogue of Scienctific Papers ...

C. B. 42 (1856) 960-. focometer, universal. Weiss, G. Par. S. Ps. Se. (1895) 35-. Fraunhofer. Merz, S. von. Munch. Ak. Sb. 28 (1899) 75-. microscope, measurement of magnifying power. Marshall, W. P. Midi. Ntlist. 10 (1887) 226-. of precision, ...

Scientific Credibility and Technical Standards in 19th and ...

Schematic diagram of Abbe's focometer. His method used images of two different objects, scales ruled on glass, at PI and P2 and a determination of the magnification produced by the system of those two objects to determine the focal length ...

Jed Z. Buchwald, 1996

Wilson's Photographic Magazine

(a) If it is not possible, the absolute focal length of the combination is too long to be measured by a focometer of this length. (6) If the image is smaller or larger than the scale, then we can determine the absolute focal length. In this case we ...