Фотография. Подвесные проекторы. Часть 1. Поверхности проецирования. Размеры
Название (англ.):
Photography; Overhead projectors; Part 1 : Projection stages; Dimensions
Описание (англ.):
The projectors described here are the types most commonly used for educational and training purposes. Specialized projection equipment is not dealt with. This part of the standard covers the dimensions of projection stages and location pins to ensure compatibility between the projectors and transparencies.