Double-exit-pupil eyepiece optical system

The utility model discloses a double-exit-pupil eyepiece optical system, which comprises a first lens, a second lens, a third lens and a micro display screen which are sequentially arranged from eyes to the micro display screen along an optical axis, the first lens is a cemented positive lens, the second lens is a plastic aspheric negative lens, and the third lens is a glass positive lens. First, the lens is made of a glass material, so that the environmental adaptability of the eyepiece is improved; secondly, the lens adopts an aspheric plastic lens, so that the imaging quality of the eyepiece is improved, the weight of the whole eyepiece is reduced, and the batch mould pressing cost is far lower than that of a glass lens; thirdly, the eyepiece has two exit pupil distances, the first exit pupil distance is larger than 20mm, the exit pupil diameter is larger than 12mm, and the eyepiece can be used for positioning and aiming the eyepiece under the condition; the second exit pupil distance is greater than 40mm,