JPH0720386A - Scale display telescope - Google Patents

Abstract

PURPOSE:To provide a scale display telescope capable of measuring the size of a target object by displaying a variable scale in the visual field of a telescope. CONSTITUTION:Diopter adjustment is performed by a diopter adjustment ring 11 while peeping at the target object 2, and a diopter position is detected by a diopter adjusting position detection part 13. Then, the scale having a size corresponding to the diopter position is selected by a scale selection part (CPU) 15, and the image data of the scale is displayed on a scale display part 23 through a driving circuit 22. Time counting data from a stopwatch 20 is also displayed on the display part 23 through the CPU 15 and the driving circuit 22. The displayed scale is moved to the vicinity of the position of the target object 2 by a scale position adjusting part 21 and the size of the target object 2 is measured by comparison with the scale. Time is counted by using the stopwatch 20 while peeping through the telescope.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scale display telescope, for example, to a scale display telescope for displaying a scale for measuring the size of an object to be viewed with binoculars in the field of view.

[0002]

2. Description of the Related Art Types of telescopes include, for example, a refraction type astronomical telescope, a reflection type astronomical telescope, an erecting lens type ground telescope,
There is an erecting prism type ground telescope, Galileo type binoculars, or prism type binoculars. These telescopes optically magnify a distant object that is difficult to see with the naked eye of a human and observe it.

Usually, in the field of view of the above-mentioned telescope, only an image of an object magnified by a predetermined magnification is displayed, and no other line or character is displayed.

As a special application, a thin line is crossed in the field of view of the astronomical telescope at the center, and the telescope is continuously moved while moving the telescope so that the star to be observed always comes to the intersection position. There is a reference position. Further, in some military binoculars, a horizontal line is displayed within the field of view, and a fixed scale that is a measure of the distance between objects on the horizon is displayed in a state where the horizon is aligned with this line.

[0005]

However, in such a conventional telescope, since the size of the object seen in the field of view is different when the magnifying power is different, the size of the object seen through the telescope is accurately determined. It is very difficult to judge.

[0006] Further, when viewing a magnified object with a telescope, even if the object is the same size, the far object and the near object appear to have different sizes. For this reason, when trying to judge the size of an object while looking through a telescope, it is sufficient if there is a comparable object (for example, a person or a post whose size is fixed to some extent) in the vicinity. However, there is a problem that the size of the object cannot be judged without it.

Therefore, the present invention has been made in view of the above problems, and it is possible to display a scale, which is a measure of the size of an object, in the field of view of the telescope according to the situation even when looking through the telescope. Therefore, it is an object of the present invention to provide a scale display telescope capable of grasping the approximate size of an object.

[0008]

The invention according to claim 1 is
Diopter adjusting means for adjusting the focus of a distant object, diopter position detecting means for detecting the adjusted diopter position, and size of the object in the field of view of the telescope according to the diopter position. By providing a scale selecting means for selecting the scale shown, a scale displaying means for displaying the selected scale, and an image synthesizing means for superimposing the scale display image on the target image incident from the objective lens of the telescope, It has achieved the above objectives.

In this case, for example, in the invention according to claim 2, the diopter adjustment detecting means sets a diopter adjustment position which is adjusted to the diopter of the user's eye in advance as a reference position, and relative to the reference position. The above-mentioned object is achieved by detecting the appropriate adjustment position.

In this case, for example, the invention according to claim 3 achieves the above object by providing scale moving means for moving and displaying the scale displayed by the scale displaying means to an arbitrary position in the field of view of the telescope. is doing.

In this case, for example, the invention according to claim 4 is selected by the zoom means for changing the magnification of the telescope, the magnification detecting means for detecting the magnification changed by the zoom means, and the scale selecting means. The above-described object is achieved by including a scale conversion unit that converts the scale to a scale according to the detected magnification.

In this case, for example, in the invention according to claim 5, the scale displayed by the scale display means is a horizontal scale which is aligned with the horizontal line or the horizon position displayed in the field of view of the telescope, and the horizontal scale. And a vertical scale that is orthogonal to the horizontal scale and at least two radial scales that extend downward in the left and right directions at a predetermined angle from the intersection of the horizontal scale and the vertical scale, and that have the same length indicating the size of the object at the vertical position in the field of view. The above object is achieved by including a scale auxiliary line and a plurality of same-length scales that are provided at predetermined intervals on the vertical scale and horizontally connect the same-length scale auxiliary lines.

In this case, for example, the invention according to claim 6 achieves the above object by changing the predetermined angle formed by the same-length scale auxiliary line extending from the intersection point according to the scale length to be displayed. ing.

In this case, for example, the invention according to claim 7 achieves the above object by further performing a stopwatch display on the scale display means.

[0015]

According to the first aspect of the invention, the diopter adjusting means adjusts the focus of the distant object, the diopter position detecting means detects the adjusted diopter position, and the telescope according to the diopter position. The scale indicating the size of the object within the field of view is selected by the scale selecting means, the selected scale is displayed by the scale displaying means, and the scale is displayed on the target image incident from the objective lens of the telescope by the image synthesizing means. Since the images were overlapped, the distance to the target object by diopter adjustment was known, and the scale size was changed based on this distance.Therefore, the target object was displayed on the scale displayed within the field of view of the telescope. By measuring the size, it is possible to know the approximate size of the object.

According to the second aspect of the invention, the diopter adjustment detection means uses the diopter adjustment position that matches the diopter of the user's eye in advance as the reference position, and detects the relative adjustment position from the reference position. Therefore, it is possible to correct the distance error to the object due to the deviation of the diopter position due to the visual acuity of the user of the telescope, and it is possible to display a more accurate scale.

According to the third aspect of the present invention, since the scale displayed by the scale display means is moved and displayed by the scale moving means at an arbitrary position in the field of view of the telescope, the scale is superimposed on an arbitrary position of the object. You can accurately measure the size.

According to the fourth aspect of the present invention, when the magnification of the telescope is changed by the zoom means, the changed magnification is detected by the magnification detecting means and converted into a scale corresponding to the magnification detected by the scale converting means. Therefore, even a zoomable telescope can display an appropriate scale according to the magnification, and the size of the object can be known by comparing with the displayed scale.

According to a fifth aspect of the present invention, the scale displayed by the scale display means has the same length scale auxiliary lines radially extending downward in the left and right directions at a predetermined angle from the intersection of the horizontal scale and the vertical scale. Long scale Since it consists of multiple same length scales that connect auxiliary lines horizontally, with the horizontal scale aligned with the horizon or horizon, the same length scale is in the same horizontal position as the object whose size you want to measure. The size of the object can be known by comparing with the object using.

In the invention described in claim 6, since the formation angle of the same length scale auxiliary line extending from the intersection described in claim 5 is changed according to the magnification of the telescope, any scale length can be displayed. It is possible to measure the size of an object using this same length scale.

According to the seventh aspect of the invention, since the stopwatch function is additionally displayed on the scale display means, the size of the object can be known while looking through the telescope, and the object can be seen, for example, in a car race. You can measure laps at the same time.

[0022]

EXAMPLES The present invention will be described below based on examples.

1 to 8 are views for explaining the scale display telescope of the present invention. In this embodiment, prism binoculars using Porro prisms are used.

FIG. 1 is a partially cutaway sectional view showing the structure of the scale display telescope according to this embodiment.

As shown in FIG. 1, the scale display telescope 1
When the objective lens 3 is directed to the target object 2 which is far away, the image of the target object 2 passes through the objective lens 3, the incident light is refracted by the prisms 4 and 5, and the transmission type liquid crystal provided in the optical path. It passes through the panel 6, passes through the eyepieces 7 and 8, and is imaged on the eyes 9, 10 of the viewer, respectively.

The eyepieces 7 and 8 are finely moved back and forth by rotating the diopter adjusting ring 11 to adjust the diopter. A diopter scale (not shown) is cut at a predetermined interval at a position adjacent to the diopter adjustment ring 11, and when the diopter adjustment ring 11 is rotationally moved, the position of the diopter adjustment ring 11 is changed to a diopter scale. It is detected by a diopter adjustment position detection unit (not shown) provided under the ridge.

FIG. 2 is a block diagram showing the configuration of the scale display telescope according to this embodiment. In FIG. 2, the diopter adjustment ring 11 is turned while looking at the target object 2, and the diopter adjustment unit 12 adjusts the diopter. Diopter adjustment position detection unit 13
Detects the adjusted diopter adjustment position and outputs the detection signal to the scale selecting unit (CPU) 15 described later. Since the diopter adjustment position is affected by the visual acuity of the person who looks into the telescope, the reference position setting unit 14 adjusts the diopter position while looking at the sky or a blank sheet in advance, and adjusts the diopter position so that the contour portion becomes clear. The diopter adjustment position is adjusted and set as the reference position. Thereby, the reference diopter can be set according to the eyesight of the viewer.
The diopter adjustment position detection unit 13 calculates an accurate distance to the target object 2 by relatively measuring the moving distance from the reference position to the adjustment position when the actual target object 2 is viewed. be able to. The scale selection unit 15 is composed of a central processing unit (CPU), and calculates the distance from the diopter adjustment position detected by the diopter adjustment position detection unit 13 to the target object 2. Then, select the scale of the size according to the distance,
The display data is created according to a program.

The magnification adjusting section 16 is a telescope having a zoom function for changing the magnification, and the magnification can be changed by using this zooming function.
The magnification detection unit 17 detects the magnification adjusted by the magnification adjustment unit 16 and outputs a detection signal corresponding to the magnification to the scale selection unit (CPU) 15. On the other hand, the scale selection unit 15 selects the scale according to the diopter adjustment position described above, additionally calculates the scale size according to the magnification, and creates the display data again according to the program. It is a thing. ROM18
Stores a program for the CPU 15 to control the operation of each unit shown in FIG. The RAM 19 stores various parameters.

The stopwatch 20 measures a predetermined time in units of hours / minutes / seconds by pressing a start switch and a stop switch (not shown). The measurement signal output from the stopwatch 20 is input to the CPU 15 and converted into digital display data here.

The scale position adjusting unit 21 adjusts the display position of the display data of the scale selected and created by the scale selecting unit (CPU) 15 to a desired position.

The drive circuit 22 in this embodiment drives the liquid crystal to display a predetermined image on the liquid crystal display panel 23. In this embodiment, the liquid crystal display panel 23 is configured by using a polymer-dispersed liquid crystal that does not require a polarizing plate and controls light transmission by the scattering intensity of liquid crystal molecules. In this polymer-dispersed liquid crystal, when a voltage is not applied between the electrodes arranged to face each other between the upper and lower substrates of the liquid crystal display panel 23, liquid crystal molecules are randomly oriented, and light is scattered at an interface having a different refractive index from the polymer. Cause When a voltage is applied between the electrodes, the liquid crystal molecules are oriented in the same direction, and the refractive indices of the liquid crystal molecules are the same, so that the liquid crystal molecules are in a transmissive state. In this way, the desired display can be performed by obtaining contrast by controlling ON / OFF of the voltage applied to the electrodes.

FIG. 3 is a block diagram showing the structure of the scale display section of FIG. As shown in FIG. 3, in the liquid crystal display panel 23 that constitutes the scale display unit, horizontal electrodes and vertical electrodes are arranged inside upper and lower glass substrates (not shown), and a driving circuit for driving each electrode to perform dot matrix display. 22a and 22b and the drive circuits 22a and 22b
It has a liquid crystal controller 24 for controlling the above, and a driving power supply 25 for supplying power to each part. Display data is sent from the CPU 15 to the liquid crystal controller.

Returning to FIG. 2 again, the scale display section 23 composed of the above-mentioned liquid crystal display panel displays the digital values of the scale and stopwatch selected by the scale selection section 15 in a dot matrix. In this embodiment, as shown in FIGS. 1 and 2, the scale display unit 23 (in FIG. 1, the transmissive liquid crystal display panel 6
(Corresponding to.) Is disposed in the optical path on one side of the binoculars, so while the image of the target object 2 passes through the objective lens 3 and enters the eyes 9, 10 of the viewer, the scale display unit 23 The displayed images are combined.

As described above, the scale display telescope of this embodiment is constructed, and its operation will be described below.

FIGS. 4 and 5 are views showing examples of the field of view through the scale display telescope according to this embodiment. As shown in FIG. 4, the target object 2 is reflected in a part of the field of view 26, and the visual field adjusting ring 1 of the binoculars while looking at the target object 2.
When the diopter is adjusted while turning 1, the scale 27 matching the diopter is displayed at a predetermined position in the field of view 26. A stopwatch display 28 is also shown in the field of view 26. In this stopwatch display 28, by pressing a start switch and a stop switch (not shown), a value obtained by digitally displaying the time between them is displayed there. For example, when it is desired to measure the time while looking through the binoculars in an athletics competition, an automobile race, a racetrack, etc., the time can be easily measured in this way and the result can be known.

Then, as shown in FIG. 5, the scale 27 is moved to a desired position in the field of view 26 (near the target object 2) by using the scale position adjusting section 21, whereby the target object 2 is moved. You can estimate the approximate size. Here, if one scale of the scale 27 indicates 2 m, the width of the target object 2 (palm tree) is about 6 m.
It turns out that there is a size of.

FIG. 6 is a flow chart for explaining the scale display operation of the scale display telescope according to this embodiment.

As shown in FIG. 6, the viewer rotates the diopter adjustment ring 11 to adjust the diopter (step S1), and the diopter adjusted position is detected by the diopter adjusted position detector 13. Here, for each viewer, the diopter adjustment is performed while looking into the sky or blank paper, the reference position is set by the reference position setting unit 14, and the diopter is adjusted by the relative movement distance from the reference position. The adjustment position is detected.

Next, in the scale selecting section 15, the size of the scale to be displayed on the liquid crystal panel is selected according to the diopter detected above (step S3), and the selected scale is displayed on the liquid crystal panel. (Step S4).
Here, in order to move the scale displayed in the field of view through the binoculars to the vicinity of the target object 2, the scale position adjustment button is pressed (step S5). By pressing the scale position adjustment button, the scale displayed in the field of view is configured to cyclically change its position here in a predetermined order, and the scale is displayed at the position closest to the target object 2. Stop (step S6). As a result, the size of the target object 2 can be calculated while comparing the target object 2 with the scale.

Further, when the line of sight is moved to another target object and the diopter adjustment is performed again (step S7), the process returns to step S2 and the above operation is repeated.

If the diopter adjustment is no longer performed, the above operation is terminated.

FIGS. 7 and 8 are views for explaining a scale according to another embodiment displayed in the field of view.

As shown in FIG. 7, in the field of view 26 of the binoculars, from a horizontal scale 29 aligned with the position of the horizon or the horizon, a vertical scale 30 orthogonal to the horizontal scale, and an intersection 31 thereof. Two same-length scale auxiliary lines 32, 32 that extend radially downward at a predetermined angle are displayed. The same-length scale auxiliary lines 32, 32 extend from the intersection point 31 toward the end, and a plurality of same-length scales 33 that horizontally connect the same-length scale auxiliary lines 32, 32 are formed.
The plurality of same length scales 33 are scales that serve as a reference for the same length at each position. That is, the intersection 31 corresponds to the vanishing point of the perspective in the painting. For example, roads and railroad tracks of the same width appear to be gathered at one point across the horizon, but just as the road width and railroad track width do not change, the same length scale 33 that indicates the lateral width is a scale that always indicates the same length. Can be used as

Therefore, as shown in FIG. 7, with respect to the target object 2 (tree in this case) in the field of view 26, the same length scale 33 at the horizontal position is horizontally moved in the direction of arrow B. . Accordingly, the size of the target object 2 can be compared with the same length scale 33 to measure the size.

Further, as shown in FIG. 7, the angle 34 formed by the same length scale auxiliary lines 32, 32 is determined by the size of the same length scale 33 to be displayed. In this embodiment, the same length scale 33 is displayed as indicating a length of 5 m.

Therefore, as shown in FIG. 8, the width of the target object 2 can be estimated to be about 4 m. Also,
Horizontal scale 29 and vertical scale 3 described above
0, the intersection point 31, the same length scale auxiliary line 32, and the unnecessary same length scale 33 are configured to be deleted from the field of view 26 after the required same length scale 33 is selected.

As described above, in the scale display telescope of this embodiment, the size of the target object can be easily measured while looking through the binoculars, and the stopwatch function can be utilized. .

In the present embodiment, the polymer dispersion type liquid crystal is used for the liquid crystal display panel, but the present invention is not limited to this, and depending on the driving method, nematic liquid crystal or twisted nematic (TN) liquid crystal is used. It is also possible to adopt a guest host (GH) liquid crystal or the like.

In this case, the use of the polarizing plate may lower the light transmittance, so that the liquid crystal display panel is
Instead of being permanently installed in the optical path of the telescope, it may be configured so that it can be attached and detached as needed, and only when measuring the size or time of the target object, the display may be made by inserting it in the optical path.

[0050]

According to the first aspect of the invention, the diopter adjusting means adjusts the focus of a distant object, and the diopter position detecting means detects the adjusted diopter position, The object indicating the size of the object in the field of view of the telescope according to the degree position is selected by the scale selecting means, the selected scale is displayed by the scale displaying means, and the object is incident from the objective lens of the telescope by the image synthesizing means. Since the scale display image is superimposed on the image, the distance to the target object can be found by adjusting the diopter, and the size of the scale can be changed based on this distance, and the target object can be displayed on the scale displayed in the field of view of the telescope. By measuring the size of, you can know the approximate size of the object while looking through the telescope.

According to the second aspect of the present invention, the diopter adjustment detecting means sets the diopter adjustment position which is adjusted to the diopter of the user's eye in advance as the reference position, and the relative adjustment position from the reference position is set. Since the detection is performed, it is possible to correct the distance error to the object due to the deviation of the diopter position due to the visual acuity of the user of the telescope, and it is possible to display a more accurate scale.

According to the third aspect of the present invention, the scale moving means moves and displays the scale displayed on the scale displaying means to an arbitrary position in the field of view of the telescope. Therefore, the scale is superimposed on the object. The size can be measured accurately.

According to the invention described in claim 4, when the magnification of the telescope is changed by the zoom means, the magnification detected by the magnification detection means is detected, and the scale corresponding to the magnification detected by the scale conversion means is detected. Since it is converted to, it is possible to display an appropriate scale according to the magnification even with a zoomable telescope, and it is possible to know the size of the object by comparing with this displayed scale. .

According to the fifth aspect of the present invention, the scale displayed by the scale display means has the same length scale auxiliary lines radially extending downward in the left and right directions at a predetermined angle from the intersection of the horizontal scale and the vertical scale, Because it is composed of multiple equal length scales that connect the same length scale auxiliary lines horizontally, with the horizontal scale aligned with the horizon or horizon, it is the same horizontal position as the object whose size you want to measure. The size of the object can be known by comparing with the object using the long scale.

According to the sixth aspect of the present invention, the formation angle of the same length scale auxiliary line is changed according to the length of the scale displayed in the field of view. The scale is selected so that the size of the target object can be easily measured.

According to the seventh aspect of the invention, since the stopwatch function is additionally displayed on the scale display means, it is possible to simultaneously measure the size of the object and the time while looking through the telescope.

[Brief description of drawings]

FIG. 1 is a partially cutaway sectional view showing a configuration of a scale display telescope according to an embodiment.

FIG. 2 is a block diagram showing a configuration of a scale display telescope according to the present embodiment.

FIG. 3 is a block diagram showing a configuration of a scale display unit in FIG.

FIG. 4 is a diagram showing an example of a field of view through the scale display telescope according to the present embodiment.

FIG. 5 is a diagram showing an example of a field of view through the scale display telescope according to the present embodiment.

FIG. 6 is a flowchart illustrating a scale display operation of the scale display telescope according to the present embodiment.

FIG. 7 is a diagram illustrating a scale according to another embodiment displayed in the field of view.

FIG. 8 is a diagram illustrating a scale according to another embodiment displayed in the field of view.

[Explanation of symbols]

 1 scale display telescope 2 target object 3 objective lens 12 diopter adjustment unit 13 diopter adjustment position detection unit 14 reference position setting unit 15 scale selection unit (CPU) 16 magnification adjustment unit 17 magnification detection unit 20 stopwatch 21 scale position adjustment 22 Drive circuit 23 Scale display (liquid crystal display panel)

Claims (7)

[Claims] 1. A diopter adjusting means for adjusting the focus of a distant object, a diopter position detecting means for detecting the adjusted diopter position, and an object in the field of view of a telescope according to the diopter position. Scale selecting means for selecting a scale indicating the size of the object; scale displaying means for displaying the selected scale; and image synthesizing means for superimposing the scale display image on the target image incident from the objective lens of the telescope. A scale-displaying telescope characterized by having it. 2. The diopter adjustment detection means uses a diopter adjustment position that matches the diopter of the user's eye in advance as a reference position, and detects a relative adjustment position from the reference position. The scale display telescope according to claim 1, wherein: 3. The scale display telescope according to claim 1, further comprising scale moving means for moving and displaying the scale displayed on the scale display means to an arbitrary position in the field of view of the telescope. 4. A zoom means for changing the magnification of the telescope, a magnification detecting means for detecting the magnification changed by the zoom means, and a scale selected by the scale selecting means according to the detected magnification. The scale display telescope according to claim 1, 2 or 3, further comprising: a scale conversion unit that converts into a scale. 5. The scale displayed by the scale display means includes a horizontal scale that is aligned with a horizontal line or a horizon position displayed in the field of view of the telescope, and a vertical scale that is orthogonal to the horizontal scale. At least two radial lines extending downward in the left and right directions at a predetermined angle from the intersection of the horizontal scale and the vertical scale, the same length scale auxiliary line indicating the size of the object at the vertical position within the field of view, and the predetermined scale on the vertical scale. 5. A plurality of same length scales, which are provided at intervals and horizontally connect the same length scale auxiliary lines, are formed.
The scale display telescope described. 6. The predetermined angle formed by the same-length scale auxiliary line extending from the intersection point is changed according to the scale length to be displayed, 1, 2, 3, 4 or 5. The scale display telescope described. 7. The scale display telescope according to claim 1, wherein stop scale display is performed in addition to the scale display means.