JPS61212710A - Distance measuring apparatus - Google Patents

Abstract

PURPOSE:To enable accurate measurement of distance to a target point, by arranging two lines indicating corresponding distance with the positioning of the top and bottom point and a display means adapted to move one of the line s detecting the inclination of the apparatus. CONSTITUTION:An angle of inclination sensor 20 has a pendulum 23 for detecting the inclination of a golf rangefinder and a displacement detector 24 adapted to convert mechanical displacement of the pendulum 23 into an electronical displacement. An arithmetic unit 21 converts the output of the sensor 20 into a digital signal and a line pattern is determined corresponding to the signal from the inclination of the rangefinder to be fed to a display 22. The display 22 makes an LED emit light at the position corresponding to the line pattern to be fed to a halfmirror 25 with a linear light 26 as reference upper line and the light is emitted form a finder 10 together with the light 28 from an object. Looking into the finder 10, a player sets the upper end of a flag to a reference upper line and the lower end thereof to a reference lower end thereof. The distance to the flag can be determined accurately from the value graduated on the lower line.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a distance measuring device suitable for use as a golf distance meter or the like.

<Summary of the Invention> The distance measuring device according to the present invention detects two lines provided in the finder to align the top and bottom points of an object and express the corresponding distances, and the inclination of the device. , and a display means for moving one of the two lines according to the detection result, and based on the positions of these lines and the apex position and bottom point position of the object, the display device is provided with a display device that moves one of the two lines diagonally upward or diagonally downward based on the positions of these lines and the apex position and bottom point position of the object. This makes it possible to accurately determine the actual distance to an object.

<Conventional technology> At golf courses, etc., the distance from the position where the player (competitor) is standing to the green is known, and the distance is determined based on this distance.
This player has selected a club to use.

FIG. 4 is a sectional view showing an example of a golf distance meter used to measure this type of distance. A golf rangefinder 1 shown in this figure includes a cylindrical casing 2 of a size and shape that can be held in the hand, an objective window 3 provided at one end of the casing 2, and the casing. 2, and a finder (eyepiece window) 4 provided at the other end of the flag 6, and as shown in FIG.
By aligning the apex) 6a and the lower end (bottom point) 6b of the flag 6 with the reference underline 7, the distance from the place where the player is standing to the flag 6 can be determined by the scale on the reference underline 7. It has become.

<Problems to be Solved by the Invention> By the way, in the conventional golf rangefinder 1, the housing 2 is approximately horizontal, that is, the center of the flag 6 is on the line connecting the center of the finder 4 and the center of the objective window 3. In some cases, the distance from the player to the flag 6t can be accurately determined, but as shown in Figure 6, if the green is higher or lower than the player's position, the distance from the player to the flag 6t can be determined accurately. The target falling point is at position P. The conventional golf rangefinder 1 can only measure distance when the housing 2 is approximately horizontal because it has to change from the position p to the position p, ,p.
In this case, it was not possible to accurately determine the distance from the player to the positions p, , p,.

In view of the above circumstances, the present invention accurately measures the distance from the player to the target landing point on the horizontal line corresponding to the flag position, regardless of whether the green is higher or lower than the player's position. The purpose of the present invention is to provide a distance measuring device that can perform the following tasks.

Means for Solving the Problems> In order to solve the above problems, the distance measuring device according to the present invention is a distance measuring device that measures the distance to an object of a predetermined length, and has a method of aligning the top and bottom points of the object. two lines provided in the finder to indicate the corresponding distance, and a display means that detects the inclination of the device and moves one of the two lines according to the detection result. It is characterized by the fact that it is equipped with

<Embodiment> FIG. 1 is a diagram showing an embodiment in which a distance measuring device according to the present invention is applied to a golf range finder. As shown in this figure, in this golf rangefinder 29 (see Figure 3), the finder 1
0, you can see a reference upper line 11, a reference lower line 12, and an object in front of you, such as a flag 6. The reference line 11 moves up and down (the diagonal K also moves up and down) and curves depending on the inclination of the golf rangefinder 29, and when the player looks through the finder 10, the player points the reference line 11 in the finder 10 to 7. If the upper ends 6a of the lugs 6 are aligned and the lower ends 6b of the seven lugs 6 are aligned with the reference underline 12, then the flag 6
The distance to the target falling point on the horizon corresponding to the vertical position and distance of can be accurately determined.

FIG. 2 is a circuit diagram showing an example in which the reference line 11 shown in FIG. 1 is electrically moved. The circuit shown in this figure is built into the golf distance meter 29 and includes an inclination angle sensor 20, a calculator 21, and a display 22. The inclination angle sensor 20 has a pendulum 23 for detecting the inclination of the golf distance meter 29, and a displacement detector 24 for converting the mechanical displacement of the pendulum 23 into an electrical displacement. The inclination of the golf distance meter 29 detected by the angle sensor 20 can be supplied to the calculator 21. The calculator 21 converts the output (analog output) of the inclination angle sensor 20 into a digital signal, determines the inclination of the golf distance meter 29 from this conversion result, and determines the line putter corresponding to this inclination. A signal indicating the line pattern is supplied to a display 22. The display device 22 has a large number of LEDs (or other dot matrix display elements) arranged in a matrix, and when the line pattern signal is supplied, the display device 22 corresponds to the line pattern indicated by the line pattern signal. The LED at the position K is made to emit light, and the line-shaped light 26 obtained thereby is supplied to the half mirror 25 as the reference line 11, and is emitted from the finder 10 together with the light 28 from the object. In other words, in this golf rangefinder, the upper and lower positions of the reference line 11,
The tilt and curvature change.

FIG. 3 is a sectional view showing an example of mechanically moving the reference @11 shown in FIG. The reference linear drive unit shown in this figure includes a shaft 30, an L-shaped member 31 rotatably attached to the shaft 30, a weight 32 attached to one end of the L-shaped member 31, and a weight 32 attached to one end of the L-shaped member 31. Support part 1 attached to the other end and clamping one end of the reference line 11
5, and when the golf distance meter 29 is tilted, the weight 32 moves to the shaft 3 accordingly.
The L-shaped member 31 is rotated so as to be directly below the reference line 11, and the reference line 11 is moved up and down or tilted.

In each of the embodiments described above, when the golf distance meter 29 is tilted, the reference upper line 11 moves accordingly, so that the lower end 6b of the flag 6 is moved to the reference lower line 12.
If you look at the scale of the standard underline 12 at the position where the upper end 6a of the flag 6 and IIJ11 on the standard match while moving the golf distance meter 29 laterally, it will correspond to the vertical position and distance of the flag 6. The distance to the target falling point on the horizontal line can be accurately determined.

Further, in each of the above-described embodiments, the reference line 11 is moved in accordance with the inclination of the golf rangefinder 29, but a start button is provided on the outside of the golf rangefinder 29, and a flag is set when looking into the finder 1o. Upper line 1 based on the upper end of 6
1, and also align the lower ends of the flags 6 with the reference underline 12 to read the value (distance) on the scale of the reference underline 12, then press the start button and move the reference underline 12 up and down according to the inclination of the golf distance meter 29. The distance to the target falling point on the horizon may be determined by multiplying the value (correction coefficient) marked next to the reference underline by the value indicating the distance.

<Effects of the Invention> As explained above, in the present invention, the target falling point on the horizontal line corresponding to the position 7 lags from the player can be set regardless of whether the green is at a higher or lower position than the player's position. Accurately find the distance to .

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the distance measuring device according to the present invention, FIG. 2 is a circuit diagram showing an example of electrically moving the reference line 11 shown in FIG. 4th sectional view showing an example of mechanically moving the reference line 13 shown in the figure.
The figure is a sectional view showing an example of a conventional golf rangefinder, and Figure 5 is a perspective view when looking through the finder of this golf rangefinder.
FIG. 6 is an explanatory diagram of the measurement error of this golf distance meter. 6...Object (flag), 1o...Finder, 11
...Reference upper line, 12...Reference underline.

Claims (1)

[Claims] In a distance measuring device that measures the distance to an object of a predetermined length,
two lines provided in the finder to align the apex and bottom points of the object and represent corresponding distances;
A distance measuring device comprising: a display means for detecting the inclination of the device and moving one of the two lines according to the detection result.