achromatic threshold

简明释义

消色差阈值

英英释义

例句

1.The achromatic threshold 无色阈值 can vary significantly between individuals, affecting how each person sees the world.

每个人的无色阈值 achromatic threshold 可能有显著差异，影响每个人的世界观。

2.The study of the achromatic threshold 无色阈值 helps researchers understand how humans perceive brightness.

对无色阈值 achromatic threshold 的研究帮助研究人员理解人类如何感知亮度。

3.In clinical settings, measuring the achromatic threshold 无色阈值 can assist in diagnosing certain visual impairments.

在临床环境中，测量无色阈值 achromatic threshold 可以帮助诊断某些视觉障碍。

4.When designing displays, engineers must consider the achromatic threshold 无色阈值 to ensure optimal visibility in various lighting conditions.

在设计显示器时，工程师必须考虑无色阈值 achromatic threshold 以确保在各种光照条件下的最佳可见性。

5.In vision science, the achromatic threshold 无色阈值 is the minimum intensity of light required for a person to perceive it without color.

在视觉科学中，无色阈值 achromatic threshold 是一个人感知光线所需的最低强度，而不带有颜色。

作文

The concept of the achromatic threshold refers to the point at which a stimulus, such as light or color, can no longer be distinguished from a neutral gray. This phenomenon is particularly interesting in the field of vision science and psychology, as it helps us understand how humans perceive colors and shades. The achromatic threshold plays a crucial role in various applications, including art, design, and even technology. Understanding this threshold allows artists and designers to create works that effectively utilize colors without overwhelming the viewer's perception. When we think about color perception, it is essential to recognize that our eyes are equipped with photoreceptors known as cones, which are responsible for detecting different wavelengths of light. There are three types of cones, each sensitive to different parts of the light spectrum: short (blue), medium (green), and long (red) wavelengths. The combination of signals from these cones allows us to perceive a wide range of colors. However, when the intensity of light diminishes, our ability to discern colors becomes limited, leading us to the achromatic threshold. In practical terms, the achromatic threshold can be observed in low-light conditions, where colors become less distinguishable. For instance, during twilight or in dimly lit rooms, objects that are vibrant and colorful in daylight may appear grayish or indistinct. This change in perception is due to the way our visual system adapts to different lighting conditions, prioritizing contrast over color differentiation. Researchers have conducted numerous studies to measure the achromatic threshold under various conditions. These studies often involve presenting subjects with a series of colored stimuli and gradually decreasing their saturation or brightness until the subjects can no longer identify them as distinct colors. The results reveal that the achromatic threshold varies among individuals and can be influenced by factors such as age, lighting conditions, and even individual differences in color vision. The implications of understanding the achromatic threshold extend beyond scientific inquiry; they also affect practical applications in everyday life. For example, in graphic design, knowing how colors interact at different brightness levels can help designers create visually appealing images that maintain clarity and impact. Similarly, in the realm of safety and navigation, understanding the achromatic threshold can assist in designing signage that remains visible and recognizable under various lighting conditions. Moreover, the achromatic threshold has relevance in the digital age, where screens and displays play a significant role in our daily lives. As technology continues to evolve, the way we perceive colors on screens can be affected by factors such as screen brightness, contrast settings, and ambient lighting. Designers and engineers must consider the achromatic threshold when creating user interfaces to ensure that information is presented clearly and effectively, regardless of the viewing environment. In conclusion, the achromatic threshold is a fascinating aspect of human perception that highlights the complexities of how we experience color. By studying this threshold, we can gain insights into not only the science of vision but also its practical applications in art, design, and technology. As we continue to explore the intricacies of color perception, the achromatic threshold will undoubtedly remain a key area of interest for researchers and practitioners alike.

“无色阈”这个概念指的是一种刺激（如光或颜色）无法再与中性灰色区分的点。这一现象在视觉科学和心理学领域尤为有趣，因为它帮助我们理解人类如何感知颜色和色调。“无色阈”在艺术、设计甚至技术等多个应用领域发挥着重要作用。理解这一阈值使艺术家和设计师能够创作出有效利用颜色而不让观者的感知感到压倒的作品。当我们思考颜色感知时，重要的是要意识到我们的眼睛配备了称为锥体的光感受器，这些锥体负责检测不同波长的光。锥体有三种类型，每种类型对光谱的不同部分敏感：短波（蓝色）、中波（绿色）和长波（红色）。这些锥体信号的组合使我们能够感知广泛的颜色。然而，当光的强度减弱时，我们辨别颜色的能力受到限制，从而导致我们到达“无色阈”。在实际应用中，“无色阈”可以在低光条件下观察到，在这种情况下，颜色变得不那么容易区分。例如，在黄昏或光线昏暗的房间中，白天鲜艳多彩的物体可能看起来灰蒙蒙的或模糊的。这种感知的变化是由于我们的视觉系统如何适应不同的光照条件，优先考虑对比而非颜色区分。研究人员进行了大量研究，以测量在各种条件下的“无色阈”。这些研究通常涉及向受试者呈现一系列彩色刺激，并逐渐降低其饱和度或亮度，直到受试者无法再将其识别为不同的颜色。结果显示，“无色阈”因个体而异，并且可能受到年龄、光照条件甚至个体颜色视觉差异等因素的影响。理解“无色阈”的意义超越了科学探索，它还影响到日常生活中的实际应用。例如，在平面设计中，了解颜色在不同亮度水平下的相互作用可以帮助设计师创作出视觉上吸引人的图像，同时保持清晰度和冲击力。同样，在安全和导航领域，理解“无色阈”可以帮助设计标志，即使在各种光照条件下也能保持可见性和可识别性。此外，“无色阈”在数字时代也具有相关性，屏幕和显示器在我们日常生活中扮演着重要角色。随着技术的不断发展，我们在屏幕上感知颜色的方式可能会受到屏幕亮度、对比度设置和环境光等因素的影响。设计师和工程师在创建用户界面时必须考虑“无色阈”，以确保信息在各种观看环境下都能清晰有效地呈现。总之，“无色阈”是人类感知的一个迷人方面，突显了我们体验颜色的复杂性。通过研究这一阈值，我们不仅可以深入了解视觉科学，还可以了解其在艺术、设计和技术中的实际应用。随着我们继续探索颜色感知的复杂性，“无色阈”无疑将继续成为研究人员和从业者关注的重点领域。