luminous intensity

简明释义

发光度

英英释义

例句

1.When designing a workspace, consider the luminous intensity to reduce eye strain.

在设计工作空间时，考虑光强度以减少眼睛疲劳。

2.Different light sources emit varying luminous intensity, affecting how we perceive colors.

不同的光源发出不同的光强度，影响我们对颜色的感知。

3.In photography, understanding luminous intensity can help achieve better exposure in your shots.

在摄影中，理解光强度可以帮助你在拍摄中获得更好的曝光效果。

4.The luminous intensity of the new LED bulbs is significantly higher than that of traditional incandescent bulbs.

新款LED灯泡的光强度明显高于传统白炽灯泡。

5.The luminous intensity of street lights plays a crucial role in ensuring safety at night.

街道灯的光强度在确保夜间安全方面起着至关重要的作用。

作文

Light is an essential aspect of our daily lives, influencing everything from our mood to our productivity. One of the fundamental concepts related to light is luminous intensity, which refers to the amount of light emitted by a source in a particular direction per unit solid angle. This concept is crucial in fields such as physics, photography, and even interior design, where understanding how light behaves can significantly impact the effectiveness of lighting in various environments.To grasp the significance of luminous intensity, it is important to differentiate it from other related terms like luminous flux and illuminance. While luminous flux measures the total amount of light emitted by a source, luminous intensity focuses on the directional output of that light. This means that a light bulb may have a high luminous flux, but if it emits light equally in all directions, its luminous intensity in any given direction might be relatively low. Conversely, a spotlight designed to focus light in a specific direction will have a high luminous intensity, making it effective for highlighting particular areas or objects.The measurement of luminous intensity is expressed in candelas (cd), which is defined based on the light emitted by a source that radiates monochromatic light at a frequency of 540 terahertz and has a radiant intensity of 1/683 watt per steradian. This technical definition underscores the precision required in lighting design and analysis, as professionals must consider how luminous intensity affects visibility and aesthetics within a space.In practical applications, understanding luminous intensity can lead to more efficient lighting solutions. For instance, in photography, knowing how to manipulate the luminous intensity of different light sources can help photographers achieve the desired mood and effect in their images. Similarly, in interior design, selecting fixtures with appropriate luminous intensity ensures that spaces are well-lit without being overwhelming or harsh.Moreover, the concept of luminous intensity is not only limited to artificial lighting. Natural light sources, such as the sun, also exhibit varying luminous intensity throughout the day and across different weather conditions. For example, during sunrise and sunset, the luminous intensity is lower, creating softer and warmer light, whereas midday sunlight has a much higher luminous intensity, resulting in stark shadows and bright illumination.In conclusion, luminous intensity is a vital parameter in understanding how light functions in our environment. Whether in artistic pursuits like photography or practical applications in architecture and design, recognizing the importance of luminous intensity allows us to harness light more effectively. As we continue to explore and innovate in the field of lighting, a solid grasp of this concept will undoubtedly enhance our ability to create beautiful, functional, and sustainable spaces that cater to our needs and preferences.

光是我们日常生活中不可或缺的一个方面，影响着我们的情绪和生产力。与光相关的基本概念之一是光强度，它指的是光源在特定方向上每单位立体角发出的光量。这个概念在物理学、摄影甚至室内设计等领域中至关重要，因为理解光的行为可以显著影响各种环境中照明的有效性。要理解光强度的重要性，首先需要将其与其他相关术语如光通量和照度区分开来。光通量测量的是光源发出的总光量，而光强度则关注该光的方向输出。这意味着，一个灯泡可能具有很高的光通量，但如果它均匀地向各个方向发出光，其在任何给定方向上的光强度可能相对较低。相反，设计用于将光聚焦在特定方向的聚光灯将具有高光强度，使其能够有效地突出特定区域或物体。光强度的测量以坎德拉（cd）为单位，定义为发射单色光频率为540太赫兹且辐射强度为1/683瓦特/立体弧度的光源所发出的光。这个技术定义强调了照明设计和分析中所需的精确性，因为专业人员必须考虑光强度如何影响空间的可见性和美感。在实际应用中，理解光强度可以导致更高效的照明解决方案。例如，在摄影中，知道如何操控不同光源的光强度可以帮助摄影师在图像中实现所需的情绪和效果。类似地，在室内设计中，选择适当光强度的灯具可以确保空间光线充足而不显得压迫或刺眼。此外，光强度的概念不仅限于人工照明。自然光源，如太阳，也会在一天的不同时间和不同天气条件下表现出不同的光强度。例如，在日出和日落时，光强度较低，产生柔和温暖的光线，而正午阳光的光强度则高得多，导致阴影鲜明且亮度刺眼。总之，光强度是理解光在我们环境中如何运作的重要参数。无论是在摄影等艺术追求中，还是在建筑和设计等实际应用中，认识到光强度的重要性使我们能够更有效地利用光。随着我们在照明领域的持续探索和创新，对这一概念的深入理解无疑将增强我们创造美丽、功能齐全且可持续的空间的能力，以满足我们的需求和偏好。