KR100394963B1 - A Reflection Adjusting Device Using Plane Reflector Of Zero Prism Constant - Google Patents

Abstract

The present invention relates to a reflection adjusting device using a planar reflector having a prism constant of zero, and in particular, by installing a planar reflector on a surface passing through the center of a spherical housing for measuring a precise distance, the center axis of the housing and the reflecting surface of the reflector are perpendicular A reflection control device using a planar reflector whose prism constant is zero to precisely measure the mechanical constant and / or prism constant of an EDM (Electro-Optical Distance Meter) by a reflector having a prism constant of 0 will be. To this end, the housing has a fitting jaw formed on the inner circumference so as to have a fitting in a predetermined portion penetrated in the horizontal axial direction in the center of the sphere; A reflector configured to vertically mount a reflector that reflects light to the fitting jaw, and to include a disc-shaped lid in close contact with one surface of the reflector to fix the reflector to the inside of the housing; A lower end of the housing is fixedly coupled to an upper surface, and a lower end of the housing is coupled to one end of a plurality of supports spaced apart from the ground by a predetermined distance; One end of the tripod is wrapped around a circular rotating body, characterized in that it comprises a position adjusting portion protruding to the other surface by inserting a plurality of fixing screw parts on one surface of the position fixing stand vertically extended to one side of the rotating body. .

Description

A Reflection Adjusting Device Using Plane Reflector Of Zero Prism Constant}

The present invention relates to a reflection adjuster using a planar reflector having a prism constant of zero, and more particularly, a planar reflector is installed on a surface passing through the center of a spherical housing to measure a precise distance, and thus the center axis of the housing and the reflector are half of the reflector. By applying the slopes to be vertically aligned, reflection adjustment using a plane reflector with a prism constant of zero to precisely measure the mechanical constant and / or prism constant of an electro-optic distance meter (EDM) by a reflector having a prism constant of zero Relates to a device.

In general, a prism for a target used to measure the distance to be located is a corner cube prism having three optical planes, and the material is usually optical glass.

1 is a block diagram showing a conventional corner cube prism, Figure 2 is a block diagram showing a prism with another conventional prism constant is corrected. As shown in FIG. 1, the distance from the mechanical center of the housing 20 in which the prism 10 is installed to the EDM 500 is measured.

At this time, the prism 10 is installed inside the housing 20 so that the nodal point 30 of the prism 10 coincides with the mechanical center of the housing 20 (the prism constant at this time is -value). The distance from the EDM 500 to the machine center of the housing 20 of the prism 10 is smaller than the distance value measured by the EDM 500. This difference becomes the prism constant.),

Here, in order to make the value of the prism constant equal to zero, as shown in FIG. 2, the prism 10 is moved outside the position shown in FIG. 1 and installed inside the housing 20.

However, since the prism constant is a function of the refractive index of the optical material of the prism 10, the mechanical prism constant or the EDM 500 or the like for the purpose of causing the prism constant to be zero or measuring the value of the prism constant mechanically Problems arise that are difficult to measure.

In addition, when a certain distance L is measured using the EDM 500 and the prism 10, the distance value L 'measured by the actual EDM 500 is L ′ = L + Li + Lp.

Where Li and Lp are the mechanical constants of the EDM 500 (the difference between the EDM machine center and the actual EDM distance measurement reference point), and the prism constants (the machine center of the prism housing and the distance to the EDM, respectively) Difference value between the distance values measured up to the prism 10).

Therefore, the value of Li + Lp can be measured by measuring L 'and L, but the values of Li and Lp cannot be measured separately. Therefore, if there is a reflector whose prism constant Lp = 0, the mechanical constant Li of the EDM 500 can be measured from Li = L '-Lp in the above equation.

The present invention is to solve the above problems, an object of the present invention, by installing a planar reflector on the surface passing through the center of the spherical housing in order to measure the precise distance, the central axis of the housing and the reflecting surface of the reflector coincide The present invention provides a reflection control apparatus using a planar reflector having a prism constant of zero to precisely measure the mechanical constant and / or prism constant of an EDM (Electro-Optical Distance Meter) by a reflector having a prism constant of zero. .

A housing 100 having a fitting jaw 120 formed on an inner circumference thereof so as to have a fitting in a predetermined portion penetrated in a horizontal axial direction at the center of a spherical shape; A reflector 220 which is a reflector reflecting light is vertically mounted on the fitting jaw 120, and the disc-shaped lid 240 is closely attached to one surface of the reflector 220 to be fixed to the inside of the housing 100. Reflecting unit 200 is built in; A lower end of the housing 100 is fixedly coupled to an upper surface thereof, and a lower end of the housing 100 is coupled to one end of the plurality of supports 320 to be spaced apart from the ground by a predetermined distance; One end of the tripod 300 is wrapped in a circular rotating body 420 is passed through the center, a plurality of fixing screw portion 440 on one surface of the position fixing stand 460 extending vertically on one side of the rotating body 420 ) Is achieved by a reflection adjusting device using a planar reflector having a prism constant of zero, characterized in that it comprises a positioning unit 400 which is inserted and protrudes to the other surface.

Here, the fixing screw portion 440, a plurality of micrometer screws (470) to be fitted in one angular direction of the position fixing stand 460 to adjust the posture of the housing 100; It is preferable to include a position fixing screw 480 protruding through the inner position of the position fixing table 460 and the rotating body 420 of the other end.

In addition, the position fixing screw 480 is preferably in close contact with an outer circumference of the tripod 300 to fix the rotation body 420 not to rotate.

In addition, four micrometer screws 470 are provided at one end of the position fixing stand 460 at intervals of 90 °, respectively, to adjust the attitude of the housing 100 in each direction.

In addition, the housing 100 is preferably made of aluminum and / or stainless steel.

In addition, the reflector 220 may be a metal and / or a dielectric reflective coating material that is a reflector.

The reflector 220 may have a plan view of about lambda / 20 or more and a diameter of about 60 mm.

In addition, the three support 320 is coupled to the lower surface of the tripod 300 is most preferably installed at 120 ° intervals, respectively.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings.

1 is a block diagram showing a conventional corner cube prism,

2 is a configuration diagram showing a prism in which another conventional prism constant is corrected;

3 is a perspective view showing a reflection adjusting apparatus using a planar reflector having a prism constant of zero according to the present invention;

4 is a cross-sectional view showing a reflection adjusting apparatus using a planar reflector having a prism constant of zero according to the present invention;

FIG. 5 is a cross-sectional view illustrating the reflector illustrated in FIG. 4; FIG.

6 is a use state diagram showing a reflection adjusting apparatus using a planar reflector having a prism constant of zero according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: prism 20: housing

30: nodal point 100: housing

120: fitting jaw 200: reflecting unit

220: reflector 240: lid

300: tripod 320: support

400: position adjusting unit 420: rotating body

440: fixing screw unit 460: position fixing stand

470: micrometer screw 480: position fixing screw

500: EDM 600: Reflection Adjuster

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view showing a reflection adjusting apparatus using a planar reflector having a prism constant of zero according to the present invention, and FIG. 4 is a cross-sectional view showing a reflection adjusting apparatus using a planar reflecting mirror having a prism constant of zero according to the present invention. As shown in FIGS. 3 and 4, a planar reflector 220 is vertically installed inside the spherical housing 100, so that the reflector 220 having a prism constant of 0 has a mechanical constant of EDM 500. Each prism constant of the prism 10 can be measured.

Such, the present invention is the fitting jaw 120 having a fitting in a predetermined portion penetrated in the horizontal axial direction inside the housing 100 is formed, the material of the housing 100 is used as a resin material and a metal material, In particular, aluminum and stainless steel, which are metallic materials, are mainly used.

Here, the reflector 220 which is a reflector 220 which is a reflector is vertically mounted on the fitting jaw 120, and the reflector 220 is in close contact with the lid 240 so that the reflector 220 is fixed to the inside of the housing 100. It consists of 200.

The reflector 220 is a metal and / or dielectric reflective coating having a reflectance of at least about 98% and a plan view of at least λ / 20 and a diameter of about 60 mm.

The lower end of the housing 100 is fixedly coupled to the upper surface of the tripod 300, and is coupled to one end of the plurality of supports 320 on the lower surface and spaced apart from the ground by a predetermined distance. In addition, the outer circumference of the tripod 300 is wrapped around the center of the circular rotating body 420, a plurality of fixed to one surface of the position fixing stand 460 extending vertically on one side of the rotating body 420 Screw portion 440 is fitted is composed of a position adjusting portion 400 protruding to the other surface.

Here, the fixing screw 440 is inserted into four directions at one end of the position fixing stand 460 to adjust the posture of the housing 100 and the other end of the position fixing stand 460. It is composed of a position fixing screw 480 is inserted and protrudes into the inner circumference of the rotating body 420, fixed to the tripod 300 so as not to rotate.

According to the present invention, the reflector 220 is a reflector 220 which is a reflector inside the housing 100 penetrated in the horizontal axial direction at the center of the spherical shape. Match the slopes so that the value of the prism constant is zero.

This is to bias the reflective surface of the reflector 220 by any desired length or structure that matches the mechanical center of the housing 100.

In other words, by adjusting the micrometer screw 470 for adjusting the attitude of the housing 100 in which the reflector 220 is embedded, and the position fixing screw 480 for shifting the direction of the rotating body 420, The reflector 220 is exactly aligned with the time axis of the EDM 500. Accordingly, the distance between the EDM 500 and the reflector 220 may be measured using the reflector 220 having a prism constant of zero.

FIG. 5 is a cross-sectional view illustrating the reflector illustrated in FIG. 4. As shown in FIG. 5, a reflector 220 having a planar reflecting light is mounted perpendicularly to the fitting jaw 120 formed inside the spherical housing 100, so that the reflecting surface of the reflector 220 is disposed on the housing. Consistent with the mechanical center of (100) is the reflector 220 with a prism constant value of zero.

Unlike the prism 10 illustrated in FIGS. 1 and 2, the mechanical constant of the EDM 500 and the prism constant of the prism 10 are obtained through the reflector 220 embedded in the housing 100. First, the angle of the reflecting surface is adjusted by using the position fixing screw 480 and the micrometer screw 470 so that the laser light of the EDM 500 can accurately enter the reflecting surface of the reflector 220. Adjust

Here, the micrometer screw 470 is fitted in four directions to one end of the position fixing stand 460, it is possible to precisely adjust the direction of the housing 100 in which the reflector 220 is built.

That is, the light source of the EDM 500 can be precisely adjusted so that the angle of incidence of the reflector 220 is exactly perpendicular to the reflecting surface, as well as by the rotating body 420 of the position adjusting unit 400. The housing 100 may rotate in a horizontal or vertical direction, but rotates around the center of the housing 100.

In the present invention, when the distance L is measured using the EDM 500, the distance value L 'measured by the actual EDM 500 is L' = L + Li + Lp. Where Li and Lp are the mechanical constants of the EDM 500 (the difference between the EDM machine center and the actual distance measurement reference point) and the prism constant of the prism 10 (the difference between the prism machine center and the actual distance measurement reference point, respectively). Value).

Therefore, through the reflector 220 having a prism constant of 0 (Lp = 0), the value of Li and Lp can be found directly from the distance measurement value L 'from Li = L'-L.

6 is a use state diagram showing a reflection adjusting apparatus using a planar reflector having a prism constant of zero according to the present invention. As shown in FIG. 6, the reflecting mirror 220 reflecting light is embedded inside the spherical housing 100 so that the reflecting surface of the reflecting mirror 220 coincides with the mechanical center of the housing 100. The prism constant is zero.

When the distance measurement is performed using the reflector 220 embedded in the housing 100, the laser light of the EDM 500 is perpendicular to the reflector 220 of the reflection adjusting device 600 according to the present invention. The position fixing screw 480 and the micrometer screw 470 are adjusted to be incident. This is such that the angle at which the EDM 500 sees the reflector 220 is exactly perpendicular to the reflecting surface.

Therefore, the present invention may be able to correct the mechanical constants and / or prism constants of the EDM (500) used to measure the precision distance, it is possible to reduce the measurement error due to the mechanical error and prism constant value of the EDM (500) have.

As a result, the distance L1 between the EDM 500 and the reflector 220 having the prism constant of 0 as the reference target and the distance L2 between the EDM and the prism to be measured are respectively measured, and the prism constant Lp of the prism to be measured is determined from the difference. Can be obtained from Lp = L2-L1.

In addition, when measuring a certain distance L, the distance value L 'measured by the actual EDM 500 can be measured by separating the values of Li and Lp separately from L' = L + Li + Lp, and thus the distance measured value L From Li = L '-Lp (Lp uses the measured value in the stated method), we can find the mechanical constant Li directly.

As described above, according to the reflection adjusting apparatus using the planar reflector having the prism constant of zero according to the present invention, the reflecting surface of the reflecting portion is matched to the mechanical center of the housing to the surface passing through the center of the spherical housing so that the value of the prism constant is adjusted. Can be made zero.

Such a reflection adjusting device using a planar reflector having a prism constant of zero according to the present invention reduces the measurement error of the distance measured by a reflector having a prism constant value of zero, thereby reducing the mechanical constant of the EDM (Electro-Optical Distance Meter). And / or prism constants can be measured respectively.

In addition, the reflecting surface of the reflector can not only accurately match the measurement optical axis of the EDM, but also has the characteristic of rotating the attitude of the reflector about the center of the housing.

Although the invention has been described in connection with the preferred embodiments mentioned above, other various modifications and variations may be made without departing from the spirit and scope of the invention. Accordingly, it is intended that the appended claims cover such modifications and variations as fall within the true scope of the invention.

Claims (8)

A housing 100 in which a fitting jaw 120 is formed at an inner circumference thereof to have a fitting in a predetermined portion penetrated in the horizontal axial direction at the center of the sphere; A reflector 220 which is a reflector reflecting light is vertically mounted on the fitting jaw 120, and a disc-shaped lid 240 is closely attached to one surface of the reflector 220 so as to be fixed to the inside of the housing 100. Reflecting unit 200 is built in; A lower end of the housing 100 is fixedly coupled to an upper surface thereof, and a lower end of the housing 100 is coupled to one end of the plurality of supports 320 to be spaced apart from the ground by a predetermined distance; One end of the tripod 300 is wrapped in a circular rotating body 420 is passed through the center, a plurality of fixing screw portion 440 on one surface of the position fixing stand 460 extending vertically on one side of the rotating body 420 ) Is a reflection adjusting device using a planar reflector having a prism constant of zero, characterized in that it comprises a position adjustment unit 400 is inserted into and projected to the other surface. The method of claim 1, wherein the fixing screw portion 440, A plurality of micrometer screws 470 inserted into one end of the position fixing stand 460 to adjust the posture of the housing 100; And a position fixing screw 480 protruding through the inner circumference of the position fixing table 460 and the rotating body 420 of the other end, wherein the prism constant is zero. The plane of the prism constant of claim 2, wherein the position fixing screw 480 is in close contact with an outer circumference of the tripod 300 to fix the rotor 420 so as not to rotate. Reflection adjuster using a reflector. The method of claim 2, wherein the four micrometer screws 470 are provided at one end of the position fixing stand 460 at intervals of 90 °, respectively, to adjust the posture of the housing 100 in each direction. Reflection adjuster using a planar reflector with a prism constant of zero. The apparatus of claim 1, wherein a material of the housing (100) is aluminum and / or stainless steel. The apparatus of claim 1, wherein the reflector (220) is a metal and / or dielectric reflective coating that is a reflector. The reflector according to claim 1, wherein a plan view of the reflector (220) is about lambda / 20 or more and a diameter of about 60 mm. The apparatus of claim 1, wherein the three supports 320 coupled to the bottom surface of the tripod 300 are installed at 120 ° intervals, respectively.