JP3509972B2 - Cat's eye type reflector for surveying - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflecting mirror device, and more particularly to a surveying cat's eye type reflecting mirror device using a cat's eye as a reflecting mirror device used together with a total station.

[0002]

2. Description of the Related Art Conventionally, as a reflecting mirror device, a reflecting mirror device using a prism called a corner cube, which is used for long distance measurement over several kilometers, and a short distance measurement within a range of several tens of meters are used. A reflecting mirror device using a reflecting sheet is known. The reflecting mirror device using a prism has a problem that the corner cube is made of glass, is bulky and heavy, and is difficult to handle, and the cost is high.

A reflecting mirror device using a reflecting sheet is composed of a transparent flexible sheet having a micro-prism group on the back surface of which the reflecting sheet is formed, and the reflecting sheet is a set of small corner cubes. Since it is difficult to make accurately, the reflected light has a large loss. Therefore, it has the advantages of being lightweight, not bulky, and inexpensive.
Due to poor reflection angle and finish of the reflection surface, there is a limitation of short distance measurement. Therefore, a reflecting mirror device using a corner cube is used at a measuring distance that is difficult to measure with a reflecting mirror device using a reflecting sheet.

However, since the corner cube is heavy and bulky and inconvenient to handle as described above, a lightweight and easy-to-use reflecting mirror device that can be used for medium-distance measurement has been desired. As a reflecting mirror device that can be used for this medium distance measurement (about 20 m to 150 m), a reflecting mirror device using a cat's eye has been proposed.

As shown in FIGS. 3 to 5, the cat's eye body 100 has a back surface 101 on which a series of minute corner cube prisms are continuously formed. The cat's eye body 100 is integrated as a reflecting mirror device (target) S of about 5 cm square by being surrounded by a case 102 from the back surface 101 to the side edge portion.

On the surface of the cat's eye body 100, an index composed of a crosshair 103 and a circle 104 is silk-printed, and a triangular indicator 105 is printed on a corresponding position of the case 102 on the extension of the crosshair 103. As described above, when the cat's eye body 100 is used for the reflecting mirror device S, when it is directly facing the surveying instrument side, it can sufficiently function as a reflecting mirror device (target).

[0007]

However, if silk printing is simply performed, as shown in FIG.
The back surface (that is, the prism joint surface side) of the prism is reflected by the reflection surface of the prism, and a reflection line 103a is generated at a position deviated from the original index position 103, which is double visually recognized as shown in FIG. The index of Cat's Eye surface which is the index of 10
3 and the reflection line 103a are indistinguishable. For this reason, there is a disadvantage that a collimation shift occurs, an accurate collimation cannot be performed, and an error is likely to occur.

An object of the present invention is to provide a cat's-eye type catoptric device for surveying which is capable of easily discriminating an index reflected from a reflecting surface of a corner cube from an original index with a simple structure and facilitating collimation work. To provide.

[0009]

According to another aspect of the present invention, there is provided a surveying cat's-eye type reflecting mirror device in which a reflecting surface formed on the back side of a cat's eye body where light is reflected from the front side is surrounded by a case. In an integrated flat cat-eye surveying device for a surveying instrument, an index is formed on the surface side of the cat's eye body, and the index is a surface in contact with the cat's eye body surface and the cat's eye body. It is characterized in that the surface not in contact with the surface is formed in a different color.

The above-mentioned index is constituted by two-color overlay printing, or a colored adhesive tape and a color different from the color of the adhesive tape are printed on the adhesive tape, or adhesive tapes of different colors are overlaid. It can be configured by sticking together, or can be configured from an adhesive tape having different colors on the front and back.

[0011]

In the present invention, an index is formed on the surface side of the cat's eye body, and this index is formed by a different color on the surface contacting the cat's eye body surface and the surface not contacting the cat's eye body surface. Therefore, the color of the surface that comes into contact with the surface of the cat's eye body is reflected and visually recognized as a color different from the color of the surface that does not come into contact with the surface of the cat's eye body that shows the original index. For this reason, if the original color of the index is known, it is possible to collimate without being lost.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The members, arrangements, and the like described below do not limit the present invention and can be variously modified within the scope of the gist of the present invention.

FIGS. 1 and 2 show an embodiment according to the present invention. FIG. 1 is a front view of a reflecting mirror device, and FIG. 2 is an explanatory view showing a reflection state of an index on a micro prism.

As shown in FIGS. 1 and 2, the reflecting mirror device S of this embodiment is composed of a cat's eye body 10 and a case 12. The cat's eye body 10 has a micro corner cube-shaped micro prism 11 on its back surface. The group is formed continuously. The cat's eye body 10 has a back surface and an outer circumference surrounded by a case 12, so that the reflecting mirror device S
It is integrated as a (target).

The surface 10a of the cat's eye body 10 of this example.
A cross line 13 and a circle 14 are formed as an index.

And this index (cross line 13 and circle 14)
Is a surface 1 that contacts the surface 10a of the cat's eye body 10.
3a, 14a side and the surface 10a of the cat's eye body 10
The surfaces 13b and 14b that do not come into contact with are formed in different colors.

More specifically, for example, two-color overlay printing is used. That is, first, the colors of the surfaces 13a and 14a that contact the surface 10a of the cat's eye body 10 are printed. The surfaces 13a and 14a contacting the surface 10a of the cat's eye body 10 are colored with the color reflected by the microprisms 11 constituting the cat's eye.
Color on the side 13b, 14b that does not contact a (for example, black)
And a different color, for example, white.

The surfaces 13b and 14b that do not contact the surface 10a of the cat's eye body 10 are for visual recognition by a collimating operator, and the surfaces 13a and 14a that contact the surface 10a of the cat's eye body 10 side. Is printed in a color different from white, which is the color of, for example, black.

With this structure, the color of the index (13, 14) to be collimated (in this example, the cat's eye body 10).
Of the surfaces 13b and 14b which are not in contact with the surface 10a of the black) and the white which is the reflection line 15 (the colors of the surfaces 13a and 14a which contact the surface 10a of the cat's eye body 10 are reflected) are collimated. The person can clearly and easily make a distinction.

Next, the surface 10a of the cat's eye body 10
Surfaces 13a and 14a contacting with the cat's eye body 1
Various means can be adopted for the constitution in which the surface 10a of 0 and the surfaces 13b, 14b which do not contact each other are colored differently, and representative examples thereof will be exemplified below.

As the surfaces 13a and 14a which come into contact with the surface 10a of the cat's eye body 10, a colored adhesive tape is used, and a color different from the color of the adhesive tape is printed on the adhesive tape. Surface 10
It can also be configured as the surfaces 13b and 14b that do not contact a.

The surfaces 13a and 14a which contact the surface 10a of the cat's eye body 10 and the surfaces 13b and 14b which do not contact the surface 10a of the cat's eye body 10 have different colors. For example, adhesive tapes of different colors are used. Stack and paste.

In other words, it is also possible that the white adhesive tape is first applied to the surface 10a of the cat's eye body 10 and then the black adhesive tape is applied from above the white adhesive tape.

Similar effects can be obtained by using as adhesive only adhesive tapes having different colors on the front and back sides.

As described above, the surface which comes into contact with the surface of the cat's eye body and the surface which does not come into contact with the surface of the cat's eye body, which form the index, are formed in different colors. The technique of forming the different colors can be easily solved, and the technique of the above embodiments can be used in combination, and in addition to the above embodiments, transfer paper can be used. It is possible to employ the technical means of coloring application. For example, as the coloring, the surface that does not contact the cat's eye body surface of the index (that is, the surface that is collimated from the telescope) is fluorescent color, and the surface that contacts the cat's eye body surface is black, or vice versa. If the contact surface is fluorescent,
One of the colors can be made more prominent, and work in cloudy weather or dusk can be made suitable.

In this example, four triangular indices 20 are formed at corresponding positions of the case 12 on the extension of the cross hairs 13, that is, at the top, bottom, left and right. The vertices of the index 20 facing the cat's eye body 10 side are formed so as to coincide with the extension of the cross hairs 13.

Next, the operation of the reflecting mirror device having the above structure will be described. The reflection mirror device S is arranged at the measurement point by embedding a permanent magnet in the back surface of the reflection mirror device S so as to be integrated so that it can be adsorbed and fixed to a magnetic body as the measurement point, or a leaf spring or a mounting screw is attached to the support base. The structure can be fixed to the measurement point by other methods.

The reflecting mirror device S arranged at the measuring point
Is collimated by the telescope of the surveying instrument. At this time, the crosshairs 13 and the circles 14 as the indices printed on the surface 10a of the cat's eye body 10 are the surface 10 of the cat's eye body 10.
Since the surfaces 13a, 14a contacting the surface a and the surfaces 13b, 14b not contacting the surface 10a of the cat's eye body 10 are formed in different colors, the surface 13a contacting the surface 10a of the cat's eye body 10, The color of 14a is reflected to become a reflection line 15, and this reflection line 15 is visually recognized as a color different from the colors on the surfaces 13b and 14b that do not come into contact with the surface 10a of the cat's eye body 10 that shows the original index. Therefore, the index is reflected and the original index and the reflection line are
Even if they are visually recognized with being shifted, if the original color of the index is known, it is possible to collimate without being confused.

[0029]

As described above, according to the present invention, since the color of the reflected index is different from the color of the original index, the original index and the reflection line can be easily distinguished and correctly collimated. As described above, according to the cat's-eye type reflection mirror device for surveying of the present invention, the index (reflection line) reflected by the reflection surface of the corner cube can be easily distinguished from the original index by a simple configuration, and collimation can be performed. It is easy to work with, and its practical value is extremely large.

[Brief description of drawings]

FIG. 1 is a front view of a reflecting mirror device according to the present invention.

FIG. 2 is an explanatory diagram showing a reflection state of an index on a micro prism.

FIG. 3 is a front view of a conventional reflecting mirror device.

FIG. 4 is an explanatory diagram showing a reflection state of an index on a micro prism.

5 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

10 Cat's eye body 10a surface 11 micro prisms 12 cases 13 Crosshairs (index) 13a, 14a Surface that contacts the surface 13b, 14b Surfaces that do not contact the surface 14 yen (index) 15 Reflection line S reflector device

Front page continued (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01C 15/00-15/14 G02B 5/00-5/136 G01B 9/00-9/10 G01B 11/00-11 / 30

Claims (5)

(57) [Claims] 1. A flat cat's-eye type catalyzing mirror device for a surveying instrument, wherein a reflecting surface formed on the back side of a cat's eye body on which light is incident and reflected from the front side is surrounded and integrated by a case, An index is formed on the surface side of the cat's eye body, and the index has a surface in contact with the cat's eye body surface and a surface not in contact with the cat's eye body surface formed in different colors. Cat's eye type reflector device for surveying. 2. The cat's eye type reflecting mirror device for surveying according to claim 1, wherein the index is formed by overlay printing of two colors. 3. The cat's-eye type reflecting mirror for surveying according to claim 1, wherein the index is formed by printing a colored adhesive tape and a color different from the color of the adhesive tape on the adhesive tape. apparatus. 4. The cat's eye type reflecting mirror device for surveying according to claim 1, wherein the indicators are formed by adhering adhesive tapes of different colors in an overlapping manner. 5. The cat's eye type reflector apparatus for surveying according to claim 1, wherein the index is made of an adhesive tape whose front and back sides are formed in different colors.