👉 Sharpness refers to the ability of an object or image to be clearly seen at a certain distance. It is often measured in terms of the minimum distance between the object and the eye, which is typically defined as 20-25 centimeters (8-10 inches). Sharpness can vary depending on factors such as the type of material used for the lens or eyeglass, the refractive index of the glass, and the thickness of the lenses.
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What is the definition of Sharpness? 🙋
👉 The word "sharpness" in English is typically used to describe something that cuts or tears easily, often associated with blades, knives, tools, etc. The concept is closely related to the word "dismis," which means 'not smooth'. In both cases, "sharpness" refers to the quality of something being perfectly round and flat, without any cracks or imperfections.
