JPH0416901Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a three-dimensional display meter that three-dimensionally displays two or more types of meter displays within the same visual field.

2. Description of the Related Art For example, various meters such as a speedometer and a tachometer are arranged on the instrument panel of an automobile.

The above-mentioned meters are generally mechanical types with a dial and pointer, and in recent years, electronic meters using light-emitting diodes, transmissive liquid crystal display elements, etc. have been adopted in place of the above-mentioned mechanical meters. ing.

Furthermore, recently, in consideration of design and the like, three-dimensional display meters that display two or more types of meter displays three-dimensionally within the same field of view have also begun to be adopted. The above three-dimensional display meter uses a half mirror as a reflector,
A half mirror reflects light from the electronic meter's light emitting diode, transmissive liquid crystal display element, etc.
A virtual image of the display of the electronic meter is displayed in front of the mechanical meter disposed on the instrument panel so that it can be viewed three-dimensionally.

For example, the 3D display meter mentioned above includes
There are some disclosed in Japanese Utility Model Application Publication No. 129842, Japanese Utility Model Application Publication No. 60-99131, Japanese Utility Model Application Publication No. 60-144533, etc.

Problems that the invention aims to solve By the way, in the above-mentioned three-dimensional display meter, the half mirror, which is a reflector, is all fixed, so if the viewpoint position differs depending on the driver's posture and physique, the half mirror may cause problems. As a result, the position of the virtual image of the electronic meter shifts upward or downward, and overlaps with the display of the mechanical meter, making it difficult to see the displays of both meters.

Means for Solving the Problems The present invention uses a half mirror that is inclined at a predetermined angle between a first meter that is approximately vertical and a second meter that is inclined at a predetermined angle. , a three-dimensional display meter that allows a first meter display that can be viewed directly and a second meter display that is a virtual image reflected on a half mirror to be viewed within the same field of view, and that can be viewed directly with the eye in accordance with the direction of the line of sight. The three-dimensional display meter is arranged such that the inclination angle of the half mirror is adjustable so that the first meter display and the virtual second meter display can be viewed substantially concentrically.

Function The three-dimensional display meter of the present invention changes the virtual image position of the second meter display with respect to the first meter display, which is directly visible, by adjusting the inclination of the half mirror so that it can be viewed approximately concentrically. and can be adjusted to the optimal display position.

Embodiment FIGS. 1 to 5 show an embodiment of a three-dimensional display meter according to the present invention.

In the drawing, 1 is a first meter, 2 is a second meter, 3 is a half mirror, 4 is a step motor, and 5
indicates a housing that houses the first meter 1, second meter 2, half mirror 3, and step motor 4.

As shown in FIG. 3, the first meter 1 is a mechanical tachometer, has a dial 6 and a pointer 7, and is installed in the inner part of the housing 5 in a substantially vertical position.

The second meter 2 is an electronic speedometer using light emitting diodes as shown in FIG. It is installed on the inner bottom surface of the housing 5 at a predetermined angle. As will be described later, the second meter 2 displays a virtual image (indicated by a dotted arrow in FIG. 1), so it is formed in a vertically mirror image relationship with the visible display.

The half mirror 3 is installed between the first meter 1 and the second meter 2 so as to be inclined at a predetermined angle, and a step motor 4 is disposed at its base end.

The step motor 4 is a motor whose axis can rotate in proportion to the number of input pulses, and its body side is fixed to the housing 5, and its rotating shaft is fixed to the base end of the half mirror 3. be.

The three-dimensional display meter having the above configuration is installed in an instrument panel of an automobile or the like via the housing 5.

The functions and operations of the three-dimensional display meter will be explained below.

In the situation shown in Figure 1, the driver's viewpoint is
Then, from this viewpoint E, the first meter 1 can be directly viewed through the half mirror 3, and the virtual image of the second meter 2 created by the half mirror 3 can be viewed approximately concentrically with the first meter 1. See Figure 2].

The position of the virtual image of the second meter 2 is on the front side of the first meter 1, as shown by the dotted arrow in FIG.
It is recognized that the second meter 2 is in front of the meter.

Next, a case will be described in which the driver changes and the position of the viewpoint changes, for example, upward.

In this case, the position of the virtual image of the second meter 2 generated by the half mirror 3 changes downward, and the driver sees the first meter 1 and the second meter 2 as shown in FIG.
The display surface of the first meter 1 and the display section of the second meter 2 overlap, instead of being concentric with the meter 2.

Therefore, the step motor 4 is operated by a predetermined amount, and the half mirror 3 is rotated counterclockwise by a predetermined angle, as shown by the two-dot chain line in FIG.

Then, the position of the virtual image of the second meter 2 generated by the half mirror 3 moves upward in FIG. 2 and becomes approximately concentric with the first meter 1.

Therefore, the three-dimensional display meter according to the present invention adjusts the inclination of the half mirror using a step motor in accordance with the deviation of the viewpoint position caused by the physical difference of the driver, etc. 2 meters can always be visually recognized concentrically.

In addition, in the above explanation, the first meter is a mechanical meter and the second meter is an electronic meter, but in the present invention, the first meter may be an electronic meter and the second meter may be a mechanical meter. Furthermore, both the first meter and the second meter may be mechanical meters or electronic meters.

Further, the electronic meter is not limited to one using a light emitting element such as a light emitting diode, but may also be one using a transmission type liquid crystal display element.

Furthermore, the second meter is not limited to instruments such as a tachometer, but may be a warning display device that displays various warnings.

Further, in the above embodiment, a step motor is provided on the lower base end side of the half mirror, and the tilt of the half mirror is adjusted by rotating the half mirror around the lower base end. However, it is also possible to arrange the step motor on the upper base end side of the half mirror and rotate the half mirror around this upper base end to adjust the inclination.
Furthermore, the half mirror may be rotated manually without using a step motor.

Effects of the Invention As explained above, the three-dimensional display meter according to the present invention allows the virtual image position of the second meter display to be approximately concentric with respect to the directly visible first meter display by adjusting the inclination of the half mirror. Since the display position can be adjusted to the optimal display position, the shift in the virtual image position caused by the half mirror can be corrected by adjusting the tilt of the half mirror. It is possible to provide a three-dimensional meter that can be corrected by , and can be displayed three-dimensionally at an appropriate position at all times, which is extremely excellent in terms of practical use and design.

[Brief explanation of the drawing]

1 to 5 are drawings showing an embodiment of the three-dimensional display meter according to the present invention, in which FIG. 1 is a schematic vertical side view of the three-dimensional display meter, and FIG. 2 shows the display state from viewpoint E. 3 is a diagram showing the display surface of the first meter, FIG. 4 is a diagram showing the display surface of the second meter, and FIG. 5 is a diagram showing a state in which the position of the virtual image of the second meter is shifted. be. 1...First meter [display], 2...Second meter [display], 3...Half mirror.

Claims (1)

[Claims for Utility Model Registration] A half mirror arranged at a predetermined angle between a first meter in a substantially vertical state and a second meter arranged at a predetermined angle incline enables direct visual observation. A three-dimensional display meter that allows a first meter display that is a virtual image reflected on a half mirror and a second meter display that is a virtual image reflected on a half mirror to be viewed within the same field of view, the first meter display that is directly visible in accordance with the line of sight direction. A three-dimensional display meter, characterized in that the inclination angle of the half mirror is arranged so as to be adjustable so that the virtual image of the second meter display can be viewed substantially concentrically.