Beam splitting prism and starlight night vision lens comprising same

The invention relates to a beam splitter prism and starlight night vision goggles comprising the same, the beam splitter prism comprises a pentagonal prism, a wedge angle sheet, a visible infrared beam splitting film and a glue layer, the pentagonal prism is composed of an incident right-angle surface and an emergent right-angle surface which are perpendicular to each other, and a first inclined surface, a second inclined surface and a third inclined surface which form an angle of 112.5 degrees with each other, the first inclined face is connected with the emergent right-angle face, the third inclined face is connected with the incident right-angle face, the second inclined face is connected between the first inclined face and the third inclined face, and the wedge angle piece is composed of a fourth inclined face, a first right-angle face forming an angle of 22.5 degrees with the inclined face and a second right-angle face forming an angle of 67.5 degrees with the inclined face. According to the invention, a