LASER BINOCULAR RANGE FINDER Russian patent published in 2010 - IPC G01C3/08 

FIELD: measuring technology.

SUBSTANCE: invention refers to laser technology, namely to laser ranging equipment. A laser binocular range finder, comprises a radiator channel including a laser radiator with a transmitting objective, a reception channel including a photodetector with a reception objective, a display for measurement results and data of the device status, at least one spectral dividing element and a binocular viewfinder consisting of two sight channels in the form of parallel visual tubes, each comprising an objective, an inverting system and an eyepiece. And the objective of one sight channel is an objective of the reception channel, and one eyepiece has a grid with an aiming mark. Two parallel inclined mirrors are introduced into each sight channel between the objective and inverting system. The first inclined mirror in each sight channel represents the spectral diving element reflecting visible radiation towards the second inclined mirror and passing radiation with wave length of laser radiator. The second inclined mirror is displaced relative to the first one horizontally and reflects visible radiation towards the eyepiece. And the objective of the second sight channel is an objective of the radiator channel. The second inclined mirror represents the spectral dividing element transmitting radiation with wave length of the radiating elements of the display. Both inclined mirrors are applied on plane-parallel plates or on active sides of a rhombic prism. The first inclined mirror is applied on a plane-parallel plate, and the second inclined mirror - on a hypotenuse side of a spectral dividing cube. A lens inverting system is used as an inverting system. There can be introduced the second display, e.g. to form a mobile aiming mark connected with the second sight channel. The display is located in sight of the eyepiece behind the second inclined mirror. The electron-optical converter with its photocathode combined with a focal plane of the objective, and a screen - with a focal plane of the eyepiece can be introduced. The laser radiator consists of a laser and a negative lens. The laser is arranged so that its optical axis is focused in a direction opposite to the objective, and between the laser and the negative lens, an inverse reflector is introduced. In front of the photodetector, there is an optical component that together with the reception objective forms telephoto lens. Two opposite reflecting surfaces can be added. Between the reflecting surfaces, there is the objective. Between the second inclined mirror and the display, there is a deflector introduced.

EFFECT: improved range of the binocular range finder at simultaneous downsizing thereof.

15 cl, 4 dwg