HOLOGRAPHIC COLLIMATING SIGHT WITH OFF-AXIS HOLOGRAM OF LEITH Russian patent published in 2020 - IPC F41G1/00 

FIELD: sighting devices.

SUBSTANCE: invention relates to holographic collimation sights and can be used in small arms. Holographic collimator sight comprises laser diode (1), during radiation of which there is collimating lens (2) successively arranged and optically connected to each other, forming a parallel beam of rays on an off-axis Leith hologram, diffraction grating (3) compensating temperature drift of laser diode (1) wavelength, off-axis Leith hologram with image of sighting sign (4), telescopic system (5), expanding the laser beam to the size of the exit pupil of the sight, consisting of eyepiece (6) and a second collimation lens (7), flat mirror (8) located in front of the second collimation lens (7) at angle of 45° to eyepiece (6) optical axis, beam-splitting element (9), which provides combination of images of sighting sign and target in exit pupil of sight. In particular cases of implementation of the invention, off-axis Leith hologram and diffraction grating can be made with both reflecting relief-phase and transparent phase diffraction structures.

EFFECT: simplified design of holographic collimation sight.

5 cl, 2 dwg