OCR Text |
Show The mombors of the Illumlnntins Engineering Society of England recently re-cently appointed a committee to investigate in-vestigate the subject of eye-stralr caused by watching moving pictures. This committee found that the chiel strain on the eyes comes from the pictures being shown too high up, sc that the eyes of the spectators in the front rows have to be raised. It recommends that the height of a picture on the screen is such that the angle formed by lines from the center of the top and the center of the hot-, hot-, torn to the eye of a spectator in the j front row be not greater than 85 de-Igroes. |