User:Joannicius/Sandbox

REFLECTOSCOPE
A devise that has been in use since before the turn of entering the 18th century and has been patented under many types of uses. The reflectoscope was invented by Claude Lorrain, a 17th Century French landscape painter. It appears, on the surface, to be simply a mirror. The main difference is that the function is fixed and has other than the user in the reflected image in use as a reflectoscope. In the 19th century the definition was limited to specific devices and after the turn of the century a slide projector was patented under the name ''Reflectoscope

Many instances of use and many patents are available to a researcher of reflectoscopes in use and being produced currently. Here are some of the links to begin with:
 * Grand Canyon
 * The use of ultrasonic reflectoscope for the continuous recording of the movements of heart walls