JPH06213664A - Plumbing device of survey equipment - Google Patents

Abstract

PURPOSE:To perform a plumbing work correctly and simply by providing a transparent member in which a reflection part to reflect the light from a laser beam source in the direction of a survey point and a transparent part to be a light passage of a plumbing telescope are provided, and the like. CONSTITUTION:Laser beam from a laser beam source is formed into nearly parallel light or converging light flux by an optical system, a transparent member 6 is formed on the vertical axis of a survey equipment 1, the light emitted from the optical system is reflected to the downward of the survey equipment 1 by means of the reflection part 61 formed in the transparent member 6, and the light is transmitted by means of the transparent part 62 formed in the transparent member 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a centripetal device for setting the instrument center (vertical axis center) of a surveying instrument on the vertical line of a measuring point, and in particular for reflecting light from a laser light source in the measuring point direction. The present invention relates to a centripetal device of a surveying instrument, which is provided with a transparent member having a reflecting portion and a transparent portion for forming an optical path of a centripetal telescope, and which can perform centripetal work accurately and simply.

[0002]

2. Description of the Related Art In the case of surveying by transit, theodolite, etc., it is necessary to first set the instrument center (vertical axis center) of the surveying instrument on the vertical line of the survey point, and this positioning work is important for surveying accuracy. It had an effect.

A centripetal telescope has conventionally been used to perform this task. That is, as shown in FIG. 6, the measuring point 1200 is collimated by the centripetal telescope 1100 of the surveying instrument 1000 attached to the tripod, and the measuring point 1200 and the centripetal telescope 1
Check that the crosshairs on the 100 reticle match. When the measuring point 1200 and the crosshair of the centripetal telescope 1100 do not match, the mounting position of the surveying instrument 1000 is moved while collimating the centripetal telescope 1100, and the measuring point 1200 and the crosshair of the centripetal telescope 1100 are By repeating until the coincidence, the instrument center (vertical axis center) of the surveying instrument 1000 can be set on the vertical line of the measuring point. The surveying instrument 1000 is provided with a prism 1300 so that a measuring point 1200 located vertically below can be collimated.

There has also been a method of irradiating a ray below the surveying instrument 1000 without using the centripetal telescope 1100 and adjusting the ray so as to match the measuring point position.

[0005]

However, the centripetal device using the conventional centripetal telescope 1100 is the same as the centripetal telescope 1.
The 100 has a problem that the aperture is small and the field of view is dark due to the limitation of the mounting place. Especially in the early morning and the evening, the measuring point 120
There was a serious problem that the collimation of 0 was extremely difficult.

Further, in the method of irradiating a light beam below the surveying instrument 1000 without using the centripetal telescope 1100, it becomes extremely difficult to collimate the measuring point 1200 in a bright place such as daytime. From the ground to the underground 120
When collimating toward 0, the distance from the surveying instrument 1000 to the measuring point 1200 increases, so that the spot diameter becomes large, making the measurement difficult and reducing the measurement accuracy. Therefore, instead of the centripetal telescope 11,
There was a situation where 00 was easier to use.

[0007]

The present invention constructed as described above is, in a surveying instrument, a laser light source, and an optical system for converting the laser light from the laser light source into substantially parallel light or a condensed light beam. , A transparent member formed on the vertical axis of the surveying instrument, and this transparent member transmits a light and a reflecting portion for reflecting the light emitted from the optical system downward of the surveying instrument. It is characterized in that a transparent portion is formed to allow it.

Further, the present invention comprises a laser light source, an optical system for converting the laser light from the laser light source into substantially parallel light or a condensed light flux, and a prism formed on the vertical axis of the surveying instrument. The prism is characterized in that a reflecting portion for reflecting the light emitted from the optical system below the surveying instrument and a transparent portion for transmitting the light are formed.

The present invention further comprises a laser light source, an optical system for converting the laser light from the laser light source into substantially parallel light or a condensed light flux, and formed on the vertical axis of the surveying instrument,
It is composed of a reflection means for reflecting the light emitted from the optical system downward of the surveying instrument.

[0010]

According to the present invention constructed as described above, the optical system forms the laser light from the laser light source into substantially parallel light or a condensed light flux, and forms the transparent member on the vertical axis of the surveying instrument. The reflecting portion formed on the transparent member reflects the light emitted from the optical system downward of the surveying instrument, and the transparent portion formed on the transparent member transmits the light.

A prism portion may be used instead of the transparent member.

Further, according to the present invention, the reflecting means formed on the vertical axis of the surveying instrument can reflect the light emitted from the optical system to the lower side of the surveying instrument.

[0013]

【Example】

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a surveying instrument 1 of the present embodiment. The surveying instrument 1 includes a surveying instrument body 2, a laser light source 3, a collimating optical system 4, a centripetal telephoto optical system 5, a transparent member 6,
It is composed of a prism 7.

The surveying instrument main body 2 is a surveying instrument such as a transit or theodolite, which is provided with a leveling device at its lower portion, and is fixed to a tripod 100 as shown in FIG.

The laser light source 3 is for generating a laser beam, and a semiconductor laser is used in this embodiment, but any light source means can be used as long as it can generate a laser beam. .

The collimating optical system 4 corresponds to an optical system, and is for making the laser light from the laser light source 3 substantially parallel light.

The centripetal telescope optical system 5 functions as a centripetal telescope, and is used by the user to look through the eyepiece section 51 to perform centripetal work.

The transparent member 6 is formed on the vertical axis of the surveying instrument main body 2, and has a reflecting portion 61 and a transparent portion 62 as shown in FIG. The reflecting portion 61 is for reflecting the laser light emitted from the collimating optical system 4 to the lower side of the surveying instrument body 2, and the transparent portion 62 allows the light to pass therethrough to form the optical path of the centripetal telescopic optical system 5. It has become like.

That is, as shown in FIG. 1, the transparent member 6 has a reflecting portion 61 formed in the center thereof, and the reflecting portion 61 is positioned on the vertical axis of the surveying instrument body 2. This reflection part 6
1 may have any structure as long as it can reflect the laser light emitted from the collimating optical system 4 to the lower side of the surveying instrument body 2, but in this embodiment, it is formed by vapor deposition of a metal film.

The transparent portion 62 is the portion of the transparent member 6 excluding the reflecting portion 61, forms the optical path of the centripetal telephoto optical system 5, and is capable of collimating the measuring point 10.

The transparent member 6 of this embodiment is attached at an angle of about 45 degrees, and the substantially parallel laser light emitted from the laser light source 3 is reflected vertically downward by the reflecting portion 61 of the transparent member 6. It has become like.

A mask member 41 is formed between the collimating optical system 4 and the transparent member 6. The mask member 41 is for cutting light rays other than the light rays incident on the reflecting portion 61 of the transparent member 6.

The prism 7 is for vertically directing the optical path of the centripetal telephoto optical system 5, and is positioned so that the measuring point 10 can be collimated by passing through the transparent portion 62 of the transparent member 6. .

The operation of this embodiment configured as described above will be described.

First, as shown in FIG. 2, the tripod 100 is installed at the position of the measuring point 10, and the surveying instrument main body 2 is mounted on the tripod 100.
Is mounted, the leveling device 21 is used to make horizontal adjustment while looking at the bubble tube, and then the surveying device main body 2 is fixed by the mounting fixing screw. Next, laser light is generated from the laser light source 3,
This laser light becomes substantially parallel light by the collimating optical system 4 and enters the reflecting portion 61 of the transparent member 6. Transparent member 6
The laser light incident on the reflecting portion 61 is reflected vertically downward.

At this time, it is confirmed whether the laser beam reflected vertically downward is incident on the measuring point 10.

When the laser beam reflected vertically downward is not incident on the measuring point 10, the fixing screw is loosened and the surveying instrument main body 2 is moved horizontally. Then, while making a horizontal adjustment while looking at the bubble tube, it is confirmed whether the laser light reflected vertically downward is incident on the measuring point 10. Even if the laser beam reflected vertically downward is not incident on the measuring point 10 as well, this operation is repeated until it is incident on the measuring point 10.

When the surroundings are bright, the user repeats the above adjustment until the user looks into the eyepiece 51 of the centripetal telescope 5 and the measuring point 10 and the crosshair of the centripetal coincide. The optical path of the centripetal / telescopic optical system 5 is directed vertically downward by the prism 7, is configured to pass through the transparent portion 62 of the transparent member 6 and reach the measuring point 10, without performing optical path switching work or the like. Both can perform centripetal work with a centripetal telescope.

Therefore, this embodiment has an effect that the centripetal work by the laser beam can be performed when the surroundings are dark, and the centripetal work by the centripetal telescope can be performed when the surroundings are bright.

Next, a modification of this embodiment will be described.

The first modification shown in FIG. 3 uses two prism means 81, 82 instead of the transparent member 6 of this embodiment. These two prism means 81, 82
Are adhered to each other, and a reflective surface 83 corresponding to the reflective portion 61 of the transparent member 6 is formed on the adhered surface.

In the first modification constructed as described above, the substantially parallel laser light emitted from the collimating optical system 4 is reflected vertically downward by the reflecting surface 83, and the prism Since the surfaces of the means 81 and 82 other than the portion where the reflecting surface 83 exists are transparent portions, the optical path of the centripetal telescope optical system 5 passes through the transparent portions of the prism means 81 and 82 and reaches the measuring point 10. It has become like.

Since the other construction is the same as that of the present embodiment, its explanation is omitted.

Next, a second modification shown in FIG. 4 uses a reflecting means 9 instead of the transparent member 6 of this embodiment. The reflecting means 9 is a reflecting member having a metal film deposited thereon, and is fixed by a holding means 91 such as an appropriate arm. The reflection means 9 is not limited to a reflection member having a metal film deposited thereon, and any reflection means that reflects laser light can be used.

In the second modified example constructed as described above, the substantially parallel laser beam emitted from the collimating optical system 4 is reflected vertically downward by the reflecting means 9. The space where the means 9 does not exist becomes a transparent part,
The optical path of the centripetal telephoto optical system 5 reaches the measuring point 10.

Since the other construction is the same as that of the present embodiment, its explanation is omitted.

The first and second modifications constructed as described above have a simple structure and therefore have an advantage of low cost.

Next, a third modification will be described with reference to FIG. In the third modification, instead of the reflecting means 9 of the second modification,
The small prism 95 is adopted. The laser light of substantially parallel light emitted from the collimating optical system 4 is reflected vertically downward by the small prism 95, and the space where the small prism 95 does not exist becomes a transparent portion.
The optical path of the centripetal telephoto optical system 5 reaches the measuring point 10.

The rest of the configuration is the same as that of the second modified example, and therefore its explanation is omitted.

Further, in the present embodiment and this modification, the laser light emitted from the light source is configured to be substantially parallel light, but it is possible to use not only substantially parallel light but also condensed light flux. is there.

Since the present embodiment and this modification are constructed so that the laser light from the collimating optical system 4 is transmitted, the reflecting means installed at the light projecting point and the laser light source are modulated. By providing the modulating means, the light receiving means for receiving the transmitted laser light, and the arithmetic processing means for calculating the distance from the phase of the modulated laser light, from the instrument center of the surveying device main body 2 to the light projecting point. The distance can also be measured.

Since the reflecting means installed at the light projecting point has a short distance, it is not necessary to use one having extremely high directivity, and particularly when the output of the laser light source is large, the reflecting means may be omitted. it can.

[0044]

[Effect] According to the present invention configured as described above, a laser light source, an optical system for converting the laser light from the laser light source into substantially parallel light or a condensed light flux, and formed on the vertical axis of the surveying instrument. The transparent member is
Since a reflecting portion for reflecting the light emitted from the optical system to the lower side of the surveying instrument and a transparent portion for transmitting the light are formed, a centripetal work by a laser when the surroundings are dark It has an outstanding effect that a centripetal telescope having an optical path through the transparent portion of the transparent member can be used when the surroundings are bright.

[0045]

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an exemplary embodiment of the present invention.

FIG. 2 is a perspective view showing a method of using this embodiment.

FIG. 3 is a diagram showing a first modification of the present invention.

FIG. 4 is a diagram showing a second modification of the present invention.

FIG. 5 is a diagram showing a third modification of the present invention.

FIG. 6 is a diagram illustrating a conventional technique.

[Explanation of symbols]

 1 surveying instrument 2 surveying instrument main body 21 leveling device 3 laser light source 4 collimating optical system 41 mask member 5 centripetal telephoto optical system 51 eyepiece 6 transparent member 61 reflecting portion 62 transparent portion 7 prism 81, 82 prism means 83 reflecting surface 9 Reflecting means 91 Holding means 95 Small prism 10 Measuring points 100 3 legs

Claims (3)

[Claims] 1. A surveying instrument, comprising: a laser light source; an optical system for converting a laser beam from the laser light source into a substantially parallel light beam or a condensed light beam; and a transparent member formed on a vertical axis of the surveying instrument. The transparent member is formed with a reflecting portion for reflecting the light emitted from the optical system below the surveying instrument and a transparent portion for transmitting the light. Centripetal device for surveying equipment. 2. A surveying instrument comprising a laser light source, an optical system for converting the laser light from the laser light source into a substantially parallel light beam or a condensed light beam, and a prism formed on the vertical axis of the surveying instrument. In this surveying, the prism is provided with a reflecting portion for reflecting the light emitted from the optical system downward of the surveying instrument and a transparent portion for transmitting the light. Centripetal device. 3. In a surveying instrument, a laser light source, an optical system for converting a laser beam from this laser light source into a substantially parallel light beam or a condensed light flux, and an optical system formed on the vertical axis of said surveying instrument. A centripetal device for a surveying instrument, comprising: a reflection means for reflecting the light emitted from the lower part of the surveying instrument.