JPH0538323Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] This invention relates to a reflector for a light wave range finder.

[Conventional technology]

The reflector of a light wave rangefinder is a prism with a diameter of 5
A length of ~15cm is used.

However, such a reflector is bulky and inconvenient to handle, and due to its shape and mechanism, it cannot be installed, for example, in the corner of a fence, making it difficult to accurately measure the distance to the corner. There was a drawback that I couldn't do it.

[Problem for invention]

Therefore, the problem of this invention is to provide a reflecting mirror that is small and very easy to handle, can be easily installed even in corners, and can accurately measure corners. It is.

[Means for solving problems]

In order to solve the above problem, in this invention, a rectangular prism plate with a large number of small prisms arranged in series has a vertical reference line along one side edge and a horizontal reference line perpendicular to this vertical reference line. set a line,
A configuration is adopted in which the prism plate is provided with a sharp support rod aligned with the vertical reference line.

[Effect]

Since the prism plate is composed of a large number of small prisms, no matter which surface is irradiated with light, the light is reflected in the direction of irradiation. Therefore, the reflecting mirror can be made smaller.

In addition, since the sharp support rod and the vertical reference line are aligned, the reference can be set simply by sticking the support rod into the area to be surveyed.Also, the vertical reference line is provided on one side edge of the rectangular prism plate. Therefore, for example, the reference line can be aligned with the corner of a fence, and accurate surveying can be performed even at the corner.

〔Example〕

As shown in FIG. 1, the reflecting mirror 1 has a support rod 20 fixed to one side edge of a prism plate 10, and the prism plate 10 is made of a rectangular transparent synthetic resin of about 15 mm x 55 mm. Figures 2 and 3
As shown in the figure, a large number of small prisms 11 are formed on the back surface. This small prism 11 has a shape in which a large number of triangular pyramids with square sides are successively formed.

A vertical reference line 12 along one side edge of the prism plate 10 and a horizontal reference line 13 perpendicular to the vertical reference line 12 are provided on the surface of the prism plate 10 . Therefore, the vertical reference line 12 coincides with the support rod 20.

Further, a flange 14 is provided on the periphery of the prism plate 10, and a back cover 15 is attached to this flange 14.
is inserted and fixed. In addition, back cover 15
Providing an adhesive layer 16 and a release paper 17 on the cover is convenient when attaching it to a wall or the like. Moreover, if the symbols 18 and 18' are attached to the surface of the prism plate 10,
This is convenient for distinguishing when a large number of reflecting mirrors 1 are installed.

The support rod 20 is used to install the reflector 1 at an appropriate location, and if its tip 21 is sharpened, it can support the reflector 1 by sticking it into wood, soil, etc., for example. can. If there is nothing to pierce, you may mound clay and pierce it on top for support. Furthermore, after peeling off the release paper 17 if necessary, a reflecting mirror can be adhered to an appropriate location.

FIG. 4 shows an example of use. As shown in the figure, when installing a reflector 1 at a corner C of a block wall B, first attach clay D to the corner C, and then align one side edge of the reflector 1 with a vertical line of the corner C. Support rod 2 to match
Stick 0 into clay D. In this way, since the vertical reference line 12 is provided on one side edge, the vertical reference line can be made to coincide with the corner of the block wall B.

Alternatively, the vertical reference line 12 can be aligned by sticking the support rod 20 into the ground E.

〔effect〕

According to this invention, as described above, the reflector is made into a small rectangle, and the vertical reference line and the sharp support rod are aligned, so that the reference can be set simply by sticking the support rod into the point to be measured. In addition, since a vertical reference line is provided on one side edge of the reflector, accurate surveying is possible even in corners.It is also easier to install, so multiple reflectors can be installed in advance at the locations where distance measurement is planned. If you carry out the survey after preparing the data, it will be possible for one person to do the survey, and it will also improve efficiency.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the reflecting mirror of this invention, Fig. 2 is a partial vertical sectional view of the same as above, Fig. 3 is a partially enlarged plan view showing a small prism, and Fig. 4 is the state in which the reflecting mirror is used. FIG. 1...Reflector, 10...Prism plate, 11...
Small prism, 12...Vertical reference line, 13...Horizontal reference line, 14...Flange, 15...Back cover, 16
... Adhesive layer, 17 ... Release paper, 20 ... Support rod,
21... Tip, B... Block wall, C... Corner, D... Clay, E... Ground.

Claims (1)

[Scope of utility model registration request] A rectangular prism plate with a large number of small prisms arranged in series, a vertical reference line along one edge of the plate,
A reflecting mirror for a light wave range finder, wherein a horizontal reference line is provided at right angles to the vertical reference line, and a sharp support rod is provided on the prism plate to coincide with the vertical reference line.