SU152312A1 - Level with simultaneous sighting on two slats - Google Patents

Description

NIVELIR WITH SIMULTANEOUS VISIZING FOR TWO

It was filed on May 31, 1961, for .Nb 732816 / 26-10

to the Committee on Inventions and Discoveries at the Council of Ministers of the USSR Published in "Bulletin of inventions No. 24 for 1962

Levels are known with simultaneous sighting on two slats, including a telescope with two lenses and one ocular, a flat mirror and two prisms. The ocular axis of the ocular is perpendicular to the optical axis of the lenses. Also known are levels with a contact level observed in the lower part of the view of the pipe.

In comparison with the previously known, the proposed level with simultaneous sighting on two slats ensures the use of two slats, placed both in the alignment and outside the alignment. This is achieved by placing a prism level cube above the telescope, directing rays from the rear or side rail by means of two flat mirrors in the right half of the field of view of the pipe. The right half of the field of view of the pipe is separated from the left edge of the biprism, glued to the "grid of threads.

FIG. 1 shows a diagram of the optical system of the proposed level with simultaneous sighting on two slats; in fig. 2 schematically shows the field of view of the level.

The field of view of the pipe is divided into two halves. Consider the course of light rays in the left half of the floor. The rays of light that pass through the lenses / and 2 lenses of the tube (the first telescopic system) fall on the plane-parallel plate 5 and into the second telescopic system 4 (the second lens), which is the focusing component of the tube. Then the rays of light go to biprism 5, glued together with a "grid of filaments, and the image is viewed through the ocular p 6. In the right half

REIKI

From the point of view, the rays passing through the prism of the cube 7 are reflected from the mirror 8, fall and are reflected from the mirror 9, pass through the lenses / and 2; the further course of the light rays is similar to their course in the left half of the field of view.

In a level microscope, the rays of light reflected from a mirror (not shown in the drawing) refresh the 10 level ampule, and the rays of light from the opposite ends of the level bubble pass prisms 11 and 12 and fall onto the prism 13. From a prism 13, rays of light tripled reflected in the prism 14, go to the lens of the microscope 15 and through the prism 16 they give an image of the ends of the level bubble in the lower part of the field of view of the tube.

Subject invention

A level with simultaneous sighting on two slats containing a contact level observed in the lower part of the field of view of the pipe, characterized in that; that, in order to simultaneously use two rails, placed both in the alignment and outside the alignment with the level, a prism "cube" is placed above the telescope, directing rays from the rear or side rail through two flat mirrors to the right half of the field of view of the tube, which is separated from the left half by the edge of the biprism glued to the “net of threads.