SPECTROMETRE

摘要

The spectrometer for the remote examination of the earth's surface has high spectral and spatial resolution and is suitable for satellite use and has a field aperture (2) arranged behind the optical input system (1). This provides a spatial resolution of the image of a section of the earth's surface, which passes to a dispersive device in the form of a transparent holographic diffraction screen (3) and a two-dimensional solid-state image receiver (4). The latter converts the received radiation flow into an electrical signal, which is processed by a registering and processing system (5). Between the diffraction screen (3) and the image receiver (4), a fibre-optic element (10) is pref. arranged, so that an image of the spectrum is generated on its front surface (11) the dimensions of this image being adapted to those of the photo-sensitive surface of the image receiver. The processing system pref. has an operating store connected through an analogue/ digital converter to the output of the image receiver, with separate means of forming blocks of spectral and spatial information on the output-side of the operating store.