Miniaturized wide-range laser range finder

A miniaturized wide-range laser range finder, comprising a monocular telescopic system, a laser emitting system and a laser receiving system, wherein the monocular telescopic system comprises an objective lens system, a focus adjusting system, a cemented prism, a roof half penta prism, a transparent liquid crystal display unit and an eyepiece system through which visible light passes in sequence;

• the laser emitting system comprises a laser light source and an emitting lens;
• the laser receiving system comprises the objective lens system, the focus adjusting system, the cemented prism, a receiving lens, a light filter and a laser receiver through which a laser reflection light signal passes in sequence,
• wherein the cemented prism and the roof half penta prism constitute a beam splitting prism group,
• the cemented prism comprises an isosceles prism and a compensating prism, and the isosceles prism comprises a laser input surface, a reflection and output surface, and a first beam splitting surface which are connected in sequence;
• the compensating prism comprises a second beam splitting surface, a laser reflection surface and a laser output surface which are connected in sequence;
• and the first beam splitting surface of the isosceles prism is overlapped with the second beam splitting surface of the compensating prism;
• the roof half penta prism comprises a roof light input and reflection surface, a roof top surface and a roof light output surface;
• and
• the laser input surface of the isosceles prism is arranged in parallel with the roof light output surface of the roof half penta prism.