eyepiece
Quick Summary
An eyepiece is the lens or combination of lenses found at the end of an optical instrument, where the user looks. In instruments like microscopes and telescopes, the eyepiece works with another lens (the objective lens) to magnify an image. The objective lens forms an initial image, which the eyepiece then enlarges into a virtual image that the observer can see. The magnification of the entire instrument is the product of the objective lens's magnification and the eyepiece's magnification. The eyepiece is selected for comfortable viewing, and the point where the eye is placed to see the full image is called the exit pupil or eyepoint.1234
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microscopeThe compound microscope…of the second lens, the eyepiece or ocular. The eyepiece forms an enlarged virtual image that can be viewed by the observer. The magnifying power of the compound microscope is the product of the magnification of the objective lens and that of the eyepiece.
Read More…of the second lens, the eyepiece or ocular. The eyepiece forms an enlarged virtual image that can be viewed by the observer. The magnifying power of the compound microscope is the product of the magnification of the objective lens and that of the eyepiece.
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The eyepiece is selected to examine the relayed image under conditions that are comfortable for the viewer. The magnifying power of the eyepiece generally does not exceed 10×. The field of view is then about 40° total, a convenient value for a relatively…
Read MoreThe eyepiece is selected to examine the relayed image under conditions that are comfortable for the viewer. The magnifying power of the eyepiece generally does not exceed 10×. The field of view is then about 40° total, a convenient value for a relatively…
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