What is redirected?

Some articles on redirected:

Nonimaging Optics - Kohler Integration
... Therefore, ray r1 incident on the first lens at an angle θ will be redirected towards L3 ... the second lens, it is coming from point L1 and it is redirected by the second lens to R2 ... On the other hand, ray r2 also incident on the first lens at an angle θ will also be redirected towards L3 ...
URL Redirection
... When a web browser attempts to open a URL that has been redirected, a page with a different URL is opened ... For example, www.example.com is redirected to www.iana.org/domains/example/ ... Similarly, Domain redirection or domain forwarding is when all pages in a URL domain are redirected to a different domain, as when wikipedia.com and ...
Roaming User Profile - 2000/XP and Vista/Win7 Compatibility - Redirected Folder Sharing
... Redirected network folders are able to override the separation between 2000/XP and Vista/Win7 ... For example, both types of profiles can be redirected to use a single Documents folder, and a single Desktop folder, so that the user's account documents are consistent between the two ... Redirected sharing of folders such as Application Data may lead to data corruption, since Microsoft did not intend this for their application data to be shared between the different OS versions ...
Standard Streams - Standard Error (stderr)
... It is a stream independent of standard output and can be redirected separately ... started the program to provide the best chance of being seen even if standard output is redirected (so not readily observed) ... For example, output of a program in a pipeline is redirected to input of the next program, but errors from each program still go directly to the text terminal ...
Nonimaging Optics - Theory - Edge Ray Principle
... that if the light rays coming from the edges of the source are redirected towards the edges of the receiver, this will ensure that all light rays coming from the inner points in the source will end up on the ... the SMS design method) so that the light rays coming from the edge S1 of the source are redirected towards edge R1 of the receiver, as indicated by the blue rays ... By symmetry, the rays coming from edge S2 of the source are redirected towards edge R2 of the receiver, as indicated by the red rays ...