POCKET LENS Meaning and
Definition
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A pocket lens refers to a small magnifying device that is typically lightweight, compact, and easily stored in one's pocket, hence its name. It consists of a convex lens, which is a curved piece of transparent material, usually made of glass, that bulges outward in the middle and is thicker at the center than at the edges. This shape allows the lens to converge light rays, producing a magnified image of an object when viewed through it.
Pocket lenses are particularly useful for assisting in visual tasks that require enhanced magnification, such as reading fine print, examining small details, or inspecting minuscule objects. The convenient size and portability of pocket lenses make them fitting for on-the-go use and situations where carrying a larger magnifying tool would be impractical.
These lenses are often utilized by individuals with visual impairments, hobbyists, professionals in various fields, such as jewelers or watchmakers, and nature enthusiasts for observing intricate plant or insect details. To achieve optimum functionality, pocket lenses are designed to have a certain focal length, typically measured in millimeters, which indicates the distance at which the lens can form a sharp image.
Overall, pocket lenses serve as valuable tools for close-up observation and magnification, providing users with improved visibility of minute subjects in a conveniently portable form factor.
Common Misspellings for POCKET LENS
- oocket lens
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- p9cket lens
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- pocjet lens
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Etymology of POCKET LENS
The etymology of the word "pocket lens" can be understood by analyzing the origin of its individual components:
1. Pocket: The English word "pocket" originated in the Middle English period, specifically around the 13th century. It derives from the Old North French word "pouque" or "poke", meaning a small bag or pouch. This word can be traced back to the Frankish word "pohha", which also referred to a small bag. Over time, "pocket" came to describe a small fabric container typically sewn into clothing to hold small items.
2. Lens: The word "lens" has a different origin. It comes from the Latin word "lentilis", which means "lentil". This is because early magnifying lenses were shaped like lentil seeds.
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