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Optical power of a lens

Optical power of a lens is a quantity that is inversely proportional to the focal length; therefore, it can be calculated in diopters. It is denoted by the letter D, and the unit of optical power is the diopter. 1 diopter is the optical power with a focal length of 1 meter. In the SI …

Focal length of the lens

The focal length of a lens is the distance from the center of the lens to the focal point, where parallel rays of light passing through the lens converge. This distance depends on the shape and material of the lens. Lenses are categorized as converging (which bring light rays together) when their focal length is …

DO-41

1N4004

DO-41 Вага: 0,340 грам (приблизно) Максимальна температура пайки +260°C протягом 30 секунд відповідно до JEDEC J-STD-020 Матеріал корпусу – формований пластик, рейтинг горючості UL 94V-0 Клеми: покриття – матові луджені виводи, які можна спаювати відповідно до MIL-STD-202, метод 208