I was always wondering, why don't we have periscope windows?<p>What I imagine is a "light intake" on a roof, from which the light is concentrated into a straight long NARROW tube that takes it to an underground flat where the light is dispersed into a fake window.<p>Is such design not possible mathematically or just very expensive?<p>Maybe it could use Fresnel lenses to save on cost and weight. That way we would not get a clear picture of the outside world but at least lot of natural daylight.
I achieved a presumably similar effect several years ago by viewing my 3D TV (remember those?) with the 3D glasses on upside down. It is definitely very strange having “near” and “far” effectively reversed, yet with all the other depth cues in place.
> A pseudoscope is an optical instrument made with two prisms. As seen in the drawing, the mirrors reverse the image in each eye causing some items viewed through it to look quite unusual: convex objects become concave, things pointing towards you may look like they are pointing away and vice versa.<p>— <a href="https://pseudoscope.blogspot.com/2005/06/pseudoscope-is-optical-instrument-made.html" rel="nofollow">https://pseudoscope.blogspot.com/2005/06/pseudoscope-is-opti...</a>
What's the name of an optical device like this that merely magnifies the stereo separation without crossing the images? I see examples of photographs taken this way but not real-time viewing instruments
<a href="https://en.wikipedia.org/wiki/Stereo_photography_techniques#Longer_base_line_for_distant_objects_–_"Hyper_Stereo"" rel="nofollow">https://en.wikipedia.org/wiki/Stereo_photography_techniques#...</a>