diopter

简明释义

英[daɪˈɒptə(r)]美[daɪˈɑːptər]

n. [光] 屈光度；屈光率单位；瞄准器；测定器

英英释义

单词用法

同义词

反义词

例句

1.Results: The IOP level of myopic patients went up with diopter increasing.

结果：近视病人的眼压水平随屈光度增加而升高；

2.With the increase of the hyperopic diopter, the aberrations at all levels increased.

随着球镜值增大，各阶像差值亦增大。

3.Pearlescence pigment is a clear and high-diopter sheet.

珠光颜料是一种透明、折光率高的薄片状物质。

4.Methods: The diopter and choroidal thickness in 60 cases (120 eyes) with myopia were measured and analyzed.

方法：分析60例近视患者的屈光度和脉络膜厚度的变化。

5.Objective To evaluate diopter state and its distribution of children with subnormal vision at 4-6 years.

目的探索4 ~6岁视力低常儿童的屈光状态及其分布规律。

6.Larger early postoperative changes of se, spherical diopter, and HOA correlated with worse nocturnal visual quality and glare.

术后早期SE、球镜度、高阶像差的变化值越大，夜间视觉质量越差，夜间眩光越显著。

7.A higher diopter (屈光度) indicates a stronger lens for correcting vision.

更高的 diopter (屈光度) 表示用于矫正视力的镜片更强。

8.The optometrist measured my vision and said I need glasses with a prescription of -2.00 diopter (屈光度).

验光师测量了我的视力，说我需要配一副-2.00 diopter (屈光度) 的眼镜。

9.The diopter (屈光度) scale helps determine how much correction is needed for each eye.

diopter (屈光度) 标度帮助确定每只眼睛需要多少矫正。

10.My new contact lenses have a diopter (屈光度) of -1.50.

我新的隐形眼镜的 diopter (屈光度) 是-1.50。

11.When buying reading glasses, make sure to check the diopter (屈光度) rating.

购买阅读眼镜时，确保检查 diopter (屈光度) 等级。

作文

The term diopter refers to a unit of measurement used in optics, specifically to quantify the optical power of a lens. The concept of diopter is crucial in fields such as optometry and ophthalmology, where precise measurements are essential for diagnosing and correcting vision problems. A lens with a power of one diopter brings parallel rays of light to a focus at one meter. Therefore, the higher the number of diopter values, the stronger the lens. For instance, a lens with a power of +2 diopter can focus light at half a meter, while a lens with -2 diopter diverges light rays, making it suitable for individuals who are nearsighted.Understanding diopter is vital for anyone needing corrective lenses. When visiting an optometrist, patients often receive prescriptions that include diopter values for both distance and near vision. These values indicate how much correction is necessary to achieve optimal vision. For example, a prescription might read -3.00 diopter for the left eye and -2.50 diopter for the right eye, indicating differing levels of nearsightedness.The history of the diopter dates back to the early days of optics when scientists began to understand how light behaves when passing through various materials. The term itself is derived from the Greek word 'dioptra,' which means 'to see through.' This historical context highlights the importance of diopter in the evolution of vision correction technologies.In addition to its application in glasses, the concept of diopter extends to contact lenses and other optical devices. For contact lenses, the diopter value is equally significant, as it determines the strength needed to correct a person's vision effectively. As technology has advanced, the ability to produce lenses with precise diopter values has improved, allowing for customized solutions tailored to individual needs.Moreover, understanding diopter is not limited to those who require corrective lenses. Photographers, astronomers, and even hobbyists involved in optics benefit from knowing how to calculate diopter values. For instance, a camera lens's focal length can be expressed in diopter terms, helping photographers determine the best settings for capturing images.In conclusion, the diopter is more than just a technical term; it represents a critical aspect of our understanding of optics and vision. Whether one is seeking to correct their eyesight or simply exploring the fascinating world of lenses, grasping the concept of diopter is essential. As we continue to advance in technology and science, the significance of diopter will undoubtedly remain relevant, ensuring that individuals can enjoy clear and precise vision throughout their lives.

术语diopter指的是在光学中使用的测量单位，特别是用来量化镜头的光学功率。diopter的概念在验光和眼科等领域至关重要，在这些领域，精确的测量对于诊断和矫正视力问题至关重要。一个功率为1diopter的镜头可以将平行光线聚焦在一米处。因此，diopter值越高，镜头的强度就越大。例如，一个功率为+2diopter的镜头可以在半米处聚焦光线，而一个-2diopter的镜头则会使光线发散，适合近视患者。理解diopter对任何需要矫正镜片的人来说都是至关重要的。当患者去看验光师时，通常会收到包含diopter值的处方，分别对应远视和近视。这些值指示了实现最佳视力所需的矫正量。例如，处方上可能显示左眼为-3.00diopter，右眼为-2.50diopter，这表明近视程度不同。diopter的历史可以追溯到光学早期，当时科学家们开始理解光在通过各种材料时的行为。这个术语本身源自希腊词'dioptra'，意思是“透视”。这一历史背景突显了diopter在视觉矫正技术发展中的重要性。除了在眼镜中的应用，diopter的概念还扩展到隐形眼镜和其他光学设备中。对于隐形眼镜而言，diopter值同样重要，因为它决定了有效矫正个人视力所需的强度。随着技术的进步，生产具有精确diopter值的镜头的能力得到了改善，使得能够根据个人需求量身定制解决方案。此外，理解diopter并不仅限于需要矫正镜片的人。摄影师、天文学家甚至涉及光学的爱好者都能从了解如何计算diopter值中受益。例如，摄影镜头的焦距也可以用diopter表示，帮助摄影师确定拍摄图像的最佳设置。总之，diopter不仅仅是一个技术术语；它代表了我们对光学和视觉理解的关键方面。无论是寻求矫正视力，还是仅仅探索镜头的迷人世界，掌握diopter的概念都是必不可少的。随着我们在技术和科学上的不断进步，diopter的重要性无疑将继续保持相关性，确保人们能够在生活中享受清晰而精确的视力。