Patent ID: 7554651

Claim:
A laser distance finder, comprising: a laser generating device; a collimating lens positioned in an emitting end direction of the laser generating device for converting a laser beam generated from the laser generating device into a collimating measuring beam; a receiving lens for receiving a reflected measuring beam from an object to be measured and focusing it into an image; an optoelectronic detector for receiving the image from the reflected measuring beam; a reflective member rotatably mounted on an optical path of the collimating measuring beam via a rotating shaft, the reflective being capable of rotating to a first position and a second position around the rotating shaft, the rotating shaft being connected to an output shaft of a motor; a spring having a first end and a second end, the first end connected to the reflective member and the second one end fixedly mounted in the distance finder; and, wherein the spring has a maximum deformation position between the first position and the second position.