That part of the electromagnetic spectrum covering the shorter infrared wavelengths, but with no well-defined limit at the longer-wavelength end. Broadly, the near infrared extends from the red end of the visible spectrum (approximately 0.7 μ‎m, or 700 nm) to about 35 μ‎m. In practice, the term is often used to describe the infrared windows in the atmosphere between 1 and 5 μ‎m. The 0.7–1.0 μ‎m region is sometimes known as the photographic infrared.