SPACE TELESCOPE Russian patent published in 2014 - IPC G02B23/00 G01J3/12 

FIELD: physics, optics.

SUBSTANCE: telescope can be used in electro-optical space telescopes for remote probing of the Earth. The telescope comprises a lens and, mounted in the focal plane, electro-optical image sensors and a spectrometer having an entrance slit in the focal plane of the lens, as well as a focusing dispersion system. The spectrometer further includes a second entrance slit lying in parallel to the main slit with a height T. The focusing dispersion system is in the form of n mini-focusing dispersion systems mounted along the slits in a chequered manner with a step of $$\frac{T}{2n}.$$ Each mini-focusing dispersion system may include a set of lenses mounted near the slit and a concave diffraction grating. The telescope lens can be made from a concave main mirror, a convex secondary mirror and a pre-focal lens field aberration corrector.

EFFECT: larger field of view of the space telescope with small size of images of pixels of optoelectronic converters on the surface of the Earth and small size of hyper-spectral equipment.

3 cl, 2 dwg, 2 ex