Do it
Create an experiment that models the situation where the observer looks at the LED lamp and the hand holding it through the mesh glasses. Use the lens in the test set as the eye lens, and the white screen as the retina.
View _exp_open not found
Aseta punktvalgusallikas, lääts ja ekraan tööalusele nii, et need oleksid ühel sihil. Läätse ja ekraani vaheline kaugus olgu u 4 sentimeetrit.
Try putting together the same experiment so that the fingers holding the LED lamp are also visible on the screen.