One-way mirror

[Cherryman]

Those space blankets are a little see true from the dark side and very reflective.


I had a silver (color ) only one.


So i do not know if the silver/gold ones have the same properties.


https://en.wikipedia.org/wiki/Space_blanket

[franco malgarini]

Thanks for all!

J  have this to experiment:

[Zephir]

/* I need a one-way mirror, as shown */

Retroreflectors behave in this way http://kim.oyhus.no/SunValve/

[Vladokv]

https://en.wikipedia.org/wiki/Optical_isolator


it is widely used in laser data transmision.
I am sure that you searched for this