SU1312389A1 - Two-way optical device for vertical projecting with self-adjusting line of sight - Google Patents

Abstract

The invention relates to optomechanical instrumentation and improves the accuracy and production of | X X frequency measurement. Between the lenses 1 is placed a separation unit 2, made in the form of connected rhombus-prisms and a rectangular prism, the dividing line between which has a mirror coating. Compensators 3 in the form of flat mirrors 8 suspended symmetrically with the sighting axis on cardan joints 9 can move along the optical axis in order to focus separately on each direction of sight. The luminous flux transmitted through the lens 1 and reflected from the separation unit 2 and the compensator mirror 8 is directed by the prism 7 onto the grid of 4 threads. The switching device 5 allows the image of an upper or lower point of sight to be viewed through the eye-piece 6. 1 hp . f-ly, 1 ill. S (L oo ND OO 00 CO

Description

The invention relates to optomechanical instrument making, in particular to devices of vertical design with a self-aligning line of sight.

The purpose of the invention is to improve the accuracy and performance of measurements.

The drawing shows a diagram of a two-way optical device.

The device contains two lenses 1, a separation unit 2, two compacters 3, two grids of 4 threads, a switching device 5, an eyepiece 6, two prisms 7. The separation unit is made, for example, in the form of a rhombus-prism glued together and a rectangular prisms between which a reflective coating is applied. Compensators 3 are made in the form of flat mirrors 8 suspended on cardanic joints 9, and have the possibility of moving along the optical axis to focus separately on each of the directions. The compensators 3 are located symmetrically with respect to the instrument's sighting axis passing through the main points of the lenses 1.

The device works as follows

When sighting at the upper point (zenith), the luminous flux passes through the lens 1 and, reflected from the edge of the separation unit 2, is directed to the mirror 8 of the compensator 3, reflecting from which it returns to the separation unit and prism 7 is directed to the grid 4. In this case, the switching device 5 is in the position shown in the drawing and allows

Editor V. Petrash Order 1960/38

Compiled by G. Tatarnikova

Tehred A. Kravchuk Proofreader A. Vorovich

Circulation 678 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

view through the eye of the image of the top point.

When sighting at the lowest point, the switching device 5 is shifted to the position indicated on the drawing by a dotted line.

Claims (2)

1. A two-sided vertical-design optical device with a self-aligning line of sight, containing two lenses, a compensator made in the form of a flat mirror suspended on a hinge that rotates the mirror in two mutually perpendicular planes, two grids of threads, switching the device and the eyepiece, which differs from the fact that, in order to improve the accuracy and performance of the measurements, a separation block is inserted into it, located between the object willows, and the second equalizer identical to the first one, while the compensators are located symmetrically with respect to the sighting axis and can move along the optical axis independently of each other. 2. The device POP.1, characterized in that the separation 35 block is made in the form of connected between a rhombus prism and a rectangular prism, the dividing line between which has a mirror coating.