JPH0119047Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a light wave anidator for flat surveying.

The conventional light wave aridat has a light wave distance meter 11,
Eyepiece section 12, display section 13, power switch 1
4. The light wave distance meter is provided with a measurement start button 15, and is supported in a U-shaped frame 16 so as to be tiltable by shafts 17, 17, and the U-shaped frame 16 has a fine movement for tilting the light wave distance meter. A knob 18, a fixed knob 19, and a vernier protractor plate 20 are provided. Further, a reduction scale 23 is attached to the dovetail portion 21 to which the measuring needle 22 is attached so as to be slidable in the collimation direction and detachable. To measure the distance, turn on the power switch 14 and measurement start button 15,
A pole with a reflective prism (not shown) placed on the actual measurement point is sighted from the eyepiece part 12 of the light wave rangefinder 11, and when aiming, the fine movement knob 18 is adjusted to adjust the tilt of the light wave rangefinder. Then, it is fixed by the fixing knob 19 in the adjusted state. The actual measured distance value is displayed on the display section 13, and the scale scale 23 is removably provided on the dovetail dart section 21.
has several scales, e.g. 1/100, 1/25
Scales such as 0, 1/500, etc. are available, and you can use them by replacing the scale according to the scale.
The scale 23 moves a slide groove 24 along a guide 25 provided in the dovetail part 21 in the collimation direction according to the measurement, and the measurement point is marked on the drawing board by the measuring instrument 22.

The above-mentioned known light wave alidartes have the drawbacks of the complexity of having to prepare several types of scales and replacing them according to the relevant scale ratio, and the risk of losing a large number of scales.

In this invention, by attaching one millimeter scale to the dovetail part, the scale ratio can be changed using the scale switch, the scale distance value is displayed in millimeters on the display, and the measurement line is displayed on the drawing board. By configuring the scale as shown in the diagram, the work of replacing the scale according to the scale factor is eliminated, and the risk of losing the scale is eliminated. A light wave distance meter computer having a scale changeover switch and a scale calculation function electrically interlocked with the changeover switch;
The light wave allidator is characterized in that it is provided with a display section that is electrically linked to the computer and displays a scaled distance value, and that a millimeter scale is attached to the anthead section.

Next, an embodiment of the present invention shown in the drawings will be described as follows.

Similar to the above-mentioned known light wave alidator, a light wave rangefinder 11 is provided with an eyepiece portion 12, a display portion 13, a power switch 14, and a measurement start button 15.
A lens barrel 13 connected to the eyepiece portion 12 is formed in the optical distance meter 11 to form a predetermined optical system within the lens barrel 13, and a computer for the optical distance meter is provided. The above-mentioned light wave distance meter 11 is U
It is tiltably supported by shafts 17, 17 within the U-shaped frame 16, and the U-shaped frame 17 has a fine movement knob 18 and a fixed knob 1 for tilting the light wave distance meter.
9. The configuration in which the vernier protractor plate 20 is provided is also the same as that of the above-mentioned known light wave alidator. The present invention is based on the above-mentioned known light wave distance meter 1 of the light wave Alidart.
1, a scale changeover switch 30 that can be operated from the outside.
[The scale rate is, for example, 1/1, 1/100, 1/250, 1/500] and rewrites the ROM of the conventional light-wave distance meter computer installed in the light-wave distance meter 11. Along with calculating the distance value, the scale of the scale switched by the scale switch 30 is calculated, and the display unit 13 is configured to display the actual measured distance value and the scaled distance value, and the scale switch 30 and the light wave An electric circuit is formed in which the distance meter computer and the display unit 13 are electrically linked. The light wave emitted from the light emitting diode 41 passes through the prism 42 and the dichroic mirror 43 and is emitted as parallel light from the objective lens 44. The reflected light is again bent by 90 degrees by the objective lens 44 and the dichroic mirror 43 and guided to the light receiving diode 45. This light wave is amplified by a preamplifier circuit 46, passes through a phase meter, is calculated and controlled by a logic computer 47, and is displayed on a display 48. At this time, the distance value is displayed on the display 48 by adding prism constants, weather correction coefficients, etc. to the logic computer 47, so in the present invention, a scale changeover switch 30 is further provided, and the computer calculates the distance value.
This is to be displayed on the display 48. Further, a millimeter scale 23 is attached to the dovetail dart portion 21 of the lightwave rangefinder so as to be movable in the direction of the collimation axis of the lightwave distance meter. That is, the guide groove 24 provided on the millimeter scale 23 and the protruding guide portion 25 provided on the dovetail dart portion 21 are fitted together.

In the present invention, in order to measure distance, turn on the power switch 14 and measurement start button 15, change the scale changeover switch 30 to the desired scale, and then move the reflection prism placed over the actual measurement point from the eyepiece unit 12. The optical distance meter 11 is sighted at a pole (not shown), and after adjusting the fine movement knob 18 to adjust the inclination of the optical distance meter 11, it is fixed by the fixing knob 19. Since the actual measured distance value and the scaled distance value in millimeters corresponding to the scale are displayed on the display section 13, the scaled distance value is displayed in the alidart section 2.
The millimeter scale 23 provided at 1 is moved and the measuring point is marked on the drawing board with the measuring needle 22.

As mentioned above, the present invention uses only one millimeter scale, and the millimeter scale does not need to be replaced, and the scale is changed by operating the scale changeover switch and the scale is displayed on the display. This has the advantage of allowing quick measurements without the need for replacement or loss of powder.

[Brief explanation of the drawing]

FIG. 1 is a side view of the light wave alidator of the present invention, FIG. 2 is a front view of the same, and FIG. 3 is an optical path diagram of the light wave distance meter. 11...Light wave distance meter, 12...Eyepiece part,
13...display section, 14...power switch, 15...
...Measurement start button, 16...U-shaped frame, 17...
Axis, 18... fine movement knob, 19... fixed knob,
20... Vernier scale, 21... Dovetail part,
22... needle, 23... scale scale, 24...
Slide groove, 25...guide, 30...scale selection switch.

Claims (1)

[Scope of utility model registration request] A light-wave distance meter equipped with a light-wave rangefinder is equipped with a scale changeover switch, a lightwave rangefinder computer that has a scale calculation function that is electrically linked to the above-mentioned changeover switch, and is electrically linked to the above-mentioned computer to display scaled distance values. What is claimed is: 1. A light wave allidator, characterized in that a millimeter scale is movably attached to the dot part.