EYEPIECE Meaning and
Definition
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An eyepiece refers to a device, typically part of an optical instrument, used for observing or viewing objects. It is specifically designed to be looked into by the eye, enabling the viewer to perceive the magnified image or the detailed features of the object being observed. Eyepieces are commonly found in various optical instruments, such as microscopes, telescopes, binoculars, cameras, and surveying tools.
The eyepiece is positioned at the opposite end of the instrument from the objective lens or mirror. It functions by receiving the light that has passed through the objective and further magnifying it, thus delivering an enlarged and clearer view to the viewer's eye. Eyepieces are equipped with lenses or lens systems that ensure proper focus and resolution of the image.
Eyepieces come in different shapes, sizes, and optical designs, including Huygens, Ramsden, Kellner, Plössl, and wide-angle designs. They often possess adjustable features like focal length, diopter adjustment, and eye relief to accommodate various viewing preferences and compensate for individual eyesight variations.
The quality and characteristics of an eyepiece significantly impact the overall viewing experience and precision of the optical instrument. Factors to consider when selecting an eyepiece include its field of view, magnification power, image brightness, color rendition, and distortion rate. Different eyepieces may be interchangeable to allow for customized observations or different levels of magnification. Ultimately, the eyepiece plays a crucial role in enabling detailed visual exploration and analysis of objects across a wide range of optical instruments.
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The compound lens at the end of the microscope-tube nearest the eye; it magnifies the image made by the lens at the other end, or the objective; see cut under microscope.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for EYEPIECE
Etymology of EYEPIECE
The word "eyepiece" has a straightforward etymology. It is derived from the combination of two words: "eye" and "piece".
The word "eye" comes from the Old English word "ēage", which has Germanic roots. It has remained relatively unchanged in both form and meaning throughout the centuries, referring to the organ of sight in humans and some animals.
The word "piece" comes from the Old French word "piece", which means a part or fragment. It has origins in Latin, where "pĭecĕus" means a piece or a part.
When combined, "eyepiece" refers to the part of an optical instrument, such as a microscope or a telescope, that is viewed through with the eye.
Similar spelling word for EYEPIECE
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