SU118057A1 - Kipregel - Google Patents

Description

For geodetic measurements, koperegels are used that carry a telescope with a variable focal length and a vertical circle on which radial graduation and three nomographic curves are plotted. Images of these curves are transmitted by the optical system in the field of view of the telescope.

The proposed bobber differs from the known devices in that its transmitting optical system is equipped with a prism unit made in the form of two glued prisms, one of which is coated with a silver layer in the form of an index reflecting the rays falling on it into the eyepieces of the optical tube.

This embodiment of the optical system provides the smallest closed field of view of the telescope and increase the accuracy of reference.

FIG. 1 is a schematic diagram of the optical system of the proposed kipregel; in fig. 2-device of its prism block; in fig. 3-view of the tool, imposed on the rail.

The Kipregel optical system contains a lens f, a negative lens 2 moving along the optical axis to focus the tube at different points, a prism block made of two glued prisms 3 and 4 with applied distance measuring lines in the central zone of their gluing together, and an eyepiece 5. Optical circle The kipregel is a glass disk 6, on the same plane of which there are divisions with a price of 10, the initial circle and nomographic curves (horizontal distances and elevations).

The optical circle is illuminated by means of a mirror 7 and frosted glass 5; It serves to transmit divisions and nomographic curves in the visual field of the telescope.

Using the prism block 9, the image of the curves and divisions is rotated 90 ° to the plane of the circle 5 and relative to the sighting axis of the tube. Next, the lens 10 transmits the image through the prism 11 into a prism block of two prisms 3 and 4. On one side of the prism block there is a layer of silver 12 in the form of an index (Fig. 2), which reflects the no. 118057-2 -

The rays incident on it and directs them into the eye of the telescope.

Thus, in the zone of the silver layer located in the central part of the field of view of the pipe, divisions and nomographic curves of the circle will be visible. With the help of graphs deposited on the silver layer, you can count the number of degrees, as well as tens and units of minutes.

Visible picture of the floor of the pipe view, induced on the rail, is shown in FIG. 3. At the same time, the entire field of view, the pipe, remains open, with the exception of a small platform in the form of an index, located in the central part, which is used to take readings along the rail.

Subject invention

A variable-focal-length cypregel carrying a telescope and a vertical circle with nomographic curves, the images of which are transmitted by the optical system to the telescope's visual field, characterized in that the optical system is equipped with the aim of minimizing the telescope's visual field and increasing the accuracy of the reference. a prism block, made in the form of two glued prisms, on the verge of one of which is deposited in the form of an index a silver layer reflecting the rays falling on it into the eyes of the telescope.

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