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A real image is the collection of focus points made by converging rays, while a virtual image is the collection of focus points made by backward extensions of diverging rays. In other words, a virtual image is found by tracing real rays that emerge from an optical device ( lens , mirror , or some combination) backward to perceived or apparent ...
A real image is the collection of focus points actually made by converging/diverging rays, while a virtual image is the collection of focus points made by extensions of diverging or converging rays. In other words, a real image is an image which is located in the plane of convergence for the light rays that originate from a given object.
Another core meaning has been elicited by Denis Berthier, in his 2004 book Méditations sur le réel et le virtuel [6] ("Meditations on the real and the virtual"), based on uses in science (virtual image), technology (virtual world), and etymology (derivation from virtue—Latin virtus [7]).
The reality–virtuality continuum therefore encompasses all possible variations and compositions of real and virtual objects. It has been described as a concept in new media and computer science. The concept was first introduced by Paul Milgram. [1] The area between the two extremes, where both the real and the virtual are mixed, is called ...
For concave mirrors, whether the image is virtual or real depends on how large the object distance is compared to the focal length. If the 1 / f {\displaystyle 1/f} term is larger than the 1 / d o {\displaystyle 1/d_{\mathrm {o} }} term, then 1 / d i {\displaystyle 1/d_{\mathrm {i} }} is positive and the image is real.
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The image formed by a plane mirror is virtual (meaning that the light rays do not actually come from the image) it is not real image (meaning that the light rays do actually come from the image). it is always upright, and of the same shape and size as the object it is reflecting. A virtual image is a copy of an object formed at the location ...
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