focimeter

简明释义

英[fəʊˈsɪmɪtə(r)]美[foʊˈsɪmɪtər]

n. 焦点计

英英释义

单词用法

同义词

反义词

例句

1.Automatic focimeter is used to measure the optical parameters of the lens apparatus.

自动焦度计是用于测量镜片光学参数的仪器，是眼镜行业所必备的仪器之一。

2.Automatic focimeter is used to measure the optical parameters of the lens apparatus.

自动焦度计是用于测量镜片光学参数的仪器，是眼镜行业所必备的仪器之一。

3.The focimeter displayed the exact measurements needed for the new prescription.

焦距计显示了新处方所需的确切测量值。

4.In the lab, the focimeter is essential for checking the curvature of the lenses.

在实验室中，焦距计对于检查镜片的曲率至关重要。

5.Using a focimeter helps ensure that the optical prescriptions are precise.

使用焦距计有助于确保光学处方的准确性。

6.The optometrist used a focimeter to measure the lens power of the patient's glasses.

验光师使用焦距计来测量病人眼镜的镜片度数。

7.Before prescribing new lenses, the technician calibrated the focimeter for accuracy.

在开处方新镜片之前，技术员校准了焦距计以确保准确性。

作文

In the field of optics, precision is paramount. One of the essential tools that help in achieving this precision is the focimeter. A focimeter (焦距仪) is an instrument used to measure the focal length of lenses and other optical components. This device plays a crucial role in various applications, including photography, microscopy, and even in the production of corrective lenses for eyeglasses.The basic principle behind a focimeter is relatively straightforward. It utilizes a light source, usually a collimated beam, which passes through the lens being tested. The focimeter then measures the distance from the lens to the point where the light converges, which is known as the focal point. By determining this distance, the focal length can be accurately calculated. This measurement is vital for ensuring that lenses perform as intended, whether they are used in cameras, telescopes, or eyeglasses.One of the most significant advantages of using a focimeter is its ability to provide precise measurements quickly. In a world where time is often of the essence, having a reliable tool that can deliver accurate results in a short amount of time is invaluable. For instance, in the manufacturing of eyeglasses, opticians rely on focimeters to ensure that the lenses prescribed match the specifications required for optimal vision correction. Any deviation in the focal length can lead to discomfort or visual impairment for the wearer.Moreover, the focimeter is not just limited to measuring focal lengths; it can also be utilized to assess other optical properties. For example, it can help determine the curvature of a lens, which is another critical factor in lens design. Understanding the curvature allows manufacturers to create lenses that not only focus light correctly but also fit comfortably in frames.In addition to its practical applications, the focimeter also serves as an educational tool. Students studying optics can use this device to gain hands-on experience with fundamental concepts such as light propagation, refraction, and focal length. By engaging with a focimeter, learners can deepen their understanding of how lenses work and the principles that govern optical systems.Despite the advancements in technology, the focimeter remains a relevant and essential instrument in both professional and educational settings. Its ability to provide precise measurements in a simple and efficient manner ensures that it will continue to be a staple in the toolkit of anyone working with optical devices. As technology evolves, we may see more sophisticated versions of the focimeter, perhaps integrated with digital displays and automated measurement capabilities. However, the fundamental principles behind this instrument will likely remain unchanged.In conclusion, the focimeter (焦距仪) is a vital tool in the realm of optics, allowing for the accurate measurement of focal lengths and other optical characteristics. Its importance spans across various fields, from manufacturing to education, highlighting the necessity of precision in optical measurements. As we continue to explore the world of optics, the role of the focimeter will undoubtedly remain significant, helping us to refine our understanding and application of this fascinating science.