Projection of still pictures and motion-pictures; reflection and transmittance characteristics of screens; characteristic values, screen types, measurement— 12 стр.
Slide projectors and slides -Slides with scientific and technical content - Original drawings and slides, production, testing, projection conditions— 9 стр.
Projection of still pictures and motion-pictures; reflection and transmittance characteristics of screens; characteristic values, screen types, measurement— 12 стр.