RU2696367C2 - Method of creating dynamic collimation grade - Google Patents

Abstract

FIELD: optics.

SUBSTANCE: invention relates to the field of optoelectronic instrumentation. Method of creating a dynamic collimation grade is characterized in that the grade is made in the form of a two-dimensional matrix of light sources built into the optical circuit of the collimator. Luminosity of matrix elements is controlled by a personal computer or other technical means having the possibility of transmitting information on luminosity of matrix elements.

EFFECT: technical result consists in creating an optoelectronic instrument with an arbitrary pattern of the grade, which can be varied during measurements and be optimal for both visual inspection and automated electronic means of measuring angles.

3 cl, 1 dwg

Description

The present invention relates to the field of optoelectronic instrumentation and can be used in high-precision angle measuring systems, such as auto-collimators and theodolites.

From the existing level of technology there is a known method of creating an image of a collimation mark using a illuminator, a diffuser and a pattern with a printed mark of the brand [GOST R 8.874-2014]. As a rule, the drawing is performed in the form of a dash-dot crosshair. The disadvantage of this technical solution is the fixed geometric shape of the brand, which is optimal for the operator to sight, but is not optimal for measuring the angle by electronic means.

The invention of an autocollimator for measuring flat angles is known (Pat. RF No. 2353960, IPC G02B 27/30, prior. 01/19/2007), including a illuminator, a condenser, a mark, a beam splitter, a lens, an autocollimation mirror located along the rays, and part of the mark’s field is made in the form of a slit raster, and part in the form of a dash. This invention improves the accuracy of measuring angles using electronic means, however, its disadvantage is the impractical primary aiming of the autocollimator on the sighted object and visual control of measurements.

A useful model of a digital autocollimator (Pat. RF No. 97835, IPC G02B 27/30) is known, consisting of a illuminator placed along the beam of a condenser, a brand, a beam splitter lens, an autocollimation mirror, an array photodetector with an information processing unit, the mark being made in the form of a circle and may further include one or more rings whose geometric centers coincide with the geometric center of the circle.

The invention is known for a two-coordinate photoelectric digital autocollimator (Pat. RF No. 2535526, IPC G02B 27/30, G01B 11/26), including an optical system for generating a self-collimating image of a brand from a radiation source, and the brand is made in the form of a set of continuous strokes forming three horizontal zones, the middle of which is made of at least one vertical stroke and at least one inclined side stroke, while the height of the strokes is equal to the height of the zone, and the horizontal sections of the mark in different zones p differ in the number of cross-sections of strokes or their relative position. Also, the middle zone of the brand can be made of one vertical and two parallel inclined side strokes, the centers of which are located symmetrically relative to the center of the vertical stroke, the upper zone of the brand is made of two vertical strokes, which are extensions of the upward vertical stroke and one of the side strokes of the middle zone, and the lower zone is made of one vertical stroke, which is a continuation of the downward vertical stroke of the middle zone. Also, strokes of the mark can be made so that with uniform movement of the horizontal line from the top to the bottom of the mark, the number of strokes crossed abruptly changes by no more than one.

The task to which the invention is directed is the creation of an optoelectronic measuring device with an arbitrary mark pattern, which can change during the measurement process and be optimal for both visual inspection and automated electronic angle measuring instruments.

This problem is solved due to the fact that the mark is made in the form of a miniature two-dimensional matrix of light sources built into the optical circuit of the collimator, the luminosity of the matrix elements is controlled using a personal computer or other technical means that can transmit information about the luminosity of the matrix elements.

The technical result provided by the given set of features is the formation of an arbitrary shape and brightness of the collimation mark and the possibility of its modification during the measurement using electronic control. In this case, the image of the brand can be chosen optimal depending on the method and object of sight.

The invention is illustrated in the drawing, which shows:

1 - technical means of controlling a miniature two-dimensional matrix of light sources;

2 - miniature two-dimensional matrix of light sources;

3 - beam splitting device;

4 - sight device;

5 - collimation device;

6 - object of observation.

Using the technical means of control 1, the required form of the collimation mark is formed and transmitted to the miniature two-dimensional matrix of light sources 2. A beam splitting device is used on the optical axis of the matrix 2 used in the optical design of auto-collimators. The luminous flux from the dynamic collimation mark 2, controlled by the control means 1, is redirected by the beam splitter 3 to the collimation device 5, after which the light flux reflected from the observation object 6, passing through the collimation device 5 in the opposite direction, is sent by the beam splitter 3 to the sighting device 4.

Claims (3)

1. The way to create a dynamic collimation mark, characterized in that the mark is made in the form of a two-dimensional matrix of light sources that is built into the optical circuit of the collimator, the luminosity of the matrix elements is controlled using a personal computer or other technical means that can transmit information about the luminosity of the matrix elements. 2. The method according to p. 1, characterized in that the two-dimensional matrix is made of micromirrors with a controlled installation angle, reflecting light from one or more sources. 3. The method according to p. 2, characterized in that for each element of the two-dimensional matrix, the transmission or reflection of light from one or more sources is controlled.

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