JPH061204B2 - Instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an instrument suitable for an automobile.

[Conventional technology]

Conventionally, in order to three-dimensionally display scale numbers and the like, it is considered that the thickness of the transparent plate is changed and printing is performed, or that the scale and numbers are printed by using two transparent plates. (For example, JP-A-59-203919).

[Problems to be Solved by the Invention] However, in the above-mentioned conventional one, a three-dimensional effect is provided at a physical position mainly for the purpose of design effect,
It did not contribute to the ease of adjusting the viewpoint when the driver who is the user alternately looks at the distant view outside and the display of the instrument.

Therefore, the present invention makes it possible to easily adjust the viewpoint even when the user alternately sees the distant view and the display on the instrument.

[Means for solving problems]

Therefore, according to the present invention, the case, the instrument main body housed in the case, the indicator information so that when rotated by the instrument main body and illuminated by the light source, an image of the indicator is formed on the rear portion of the hologram surface. The recorded pointer hologram and the scale information so that a scale image is formed on the front surface of the instrument body at a depth position substantially the same as the pointer image at the rear of the hologram surface when illuminated by a light source. And a hologram for a scale plate on which is recorded.

[Action]

As a result, when illuminated by the light source, the image of the rotating pointer and the image of the scale are produced at substantially the same depth position in the rear portion of the hologram surface.

〔Example〕

The present invention will be described below with reference to embodiments shown in the drawings. In FIGS. 1 to 3, reference numeral 10 denotes a case in which the speed indicator main body 4 is housed. Reference numeral 9 is a dial plate arranged on the open end side of the case 1, and 11 is a transparent protective plate, which covers the open end of the case 10 from above the dial plate 9. Reference numeral 1 denotes a scale plate hologram, which is fixed to the front surface of the instrument main body 4 by a bracket 3. Reference numeral 5 is a pointer shaft which is rotated by the instrument main body 4 and is provided so as to penetrate substantially the center of the scale plate hologram 1. Reference numeral 2 is a pointer hologram made of a transparent disk, which is fixed to the pointer shaft 5 through a disk-shaped transparent plate 6 and covers the central portion of the dial 1 for hologram 1 and the hologram 1 for dial.
Is located in front of. A black print is applied to the center of the front surface of the transparent plate 6 so that the pointer shaft 5 and its periphery cannot be seen from the outside. Reference numeral 7 denotes a light source fixed below the front part of the dial plate 9 via a printed wiring board 8 for illuminating the pointer hologram 2 and the scale plate hologram 1 from the lower oblique front side. When the scale plate hologram 1 is illuminated by the light source 7, the scale 13 and the speed number 1 are placed at a position about 1 m behind the hologram surface.
Information such as scale 13, numbers 15 and unit symbols 16 is recorded to create an image of the display such as 5 and speed unit symbols 16. Further, in the pointer hologram 2, information of the pointer 14 is recorded so that when illuminated by the light source 7, the image of the pointer 14 is formed at a depth position which is substantially the same as the image of the scale 13 in the rear part of the hologram surface. . here,
Since the pointer hologram 2 is illuminated by the light source 7 obliquely downward and forward, the rotation trajectory of the image of the pointer 14 due to the rotation of the pointer hologram 2 is not completely centered on one point. It is preferable to record the information of the scale 13 on the scale plate hologram 1 so that an image of the scale 13 is created along the rotation trajectory of 14.

In the above structure, when the light source 7 is not turned on, no display appears on the scale plate hologram 1 and the pointer hologram 2 as shown in FIG.

Therefore, when the light source 7 is turned on to illuminate the hologram 1 for the scale plate and the hologram 2 for the pointer, as shown in FIGS. 1 and 3, the images of the scale 13, the pointer 14, the numeral 15, and the unit signal 16 are displayed on the hologram surface. It is created at almost the same depth position about 1 m in the rear part. In addition, the pointer hologram 2 is passed by the instrument body 4 via the pointer shaft 5 and the transparent plate 6.
By rotating, the image of the pointer 14 rotates at its depth position to display the speed.

Also, by covering the central part of the front surface of the hologram 1 for a scale plate,
Since the pointer hologram 2 and the transparent plate 6 made of a transparent disk are arranged, even when the user looks at the scale plate 1 obliquely from the front, the scale hologram plate 2 is transmitted through the pointer hologram 2 and the transparent plate 6. Scale 1 for hologram 1
The image of 3, numeral 15 and unit symbol 16 can be seen three-dimensionally.

FIG. 4 shows another embodiment of the present invention, in which the graduation plate hologram 1 is formed of a transparent plate, and the disc-shaped pointer hologram 2 and the disc-shaped hologram 2 are provided on the back surface of the graduation plate hologram 1. A plate 6 is arranged and the pointer hologram 2 is fixed to the pointer shaft 5 through the plate 6 so that the entire surface of the pointer hologram 2 is covered with the scale plate hologram 1 (the central portion and its periphery are covered. It is not necessary), and the pointer hologram 2 is illuminated by the light from the light source 7 that passes through the scale plate hologram 1.

In each of the above embodiments, both holograms 1,
Although the light source 7 is arranged on the front side of the two holograms,
It is also possible in some cases to arrange the light source 7 on the back surface side of both holograms 1 and 2 by forming a light-transmissive material.

Further, although the present invention is applied to the vehicle speedometer in the above-mentioned embodiments, it is needless to say that the present invention can also be applied to other vehicle instruments such as an engine tachometer, a water temperature gauge, and a hydraulic pressure gauge.

〔The invention's effect〕

As described above, in the present invention, the image of the rotating pointer and the image of the scale are formed at substantially the same depth position in the rear portion of the hologram surface, so that the user views the distant view and the display of the instrument mutually. At this time, not only the viewpoint can be easily adjusted, but also because the image of the pointer and the image of the scale are created at almost the same depth position, even if the angle at which the user's instrument display is viewed changes. There is an excellent effect that the instruction of the pointer can be read accurately.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment of the instrument of the present invention, and FIGS. 2 and 3 are front views showing the hologram display surface when the light source is not lit and when the light source is lit in the embodiment, respectively. FIG. 6 is a vertical sectional view showing another embodiment of the instrument of the present invention. 1 ... Scale plate hologram, 2 ... Pointer hologram, 4 ...
Instrument body, 7 ... Light source, 10 ... Case.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Suuma Matsui 1-1, Showa-cho, Kariya city, Aichi prefecture, Nihon Denso Co., Ltd. (72) Inventor Toru Mizuno 1-1-1-1, Showa town, Kariya city, Aichi prefecture, Nippon Denso Co., Ltd. Incorporated (72) Inventor, Tsukasa Goto 1-1, Showa-cho, Kariya city, Aichi Nihon Denso Co., Ltd. (56) Reference JP 61-169717 (JP, A)

Claims (3)

[Claims] 1. A case, an instrument main body housed in the case, and information of the pointer that is rotated by the instrument main body and creates an image of the pointer on the rear part of the hologram surface when illuminated by a light source. The recorded pointer hologram and the scale information so that a scale image is formed on the front surface of the instrument body at a depth position substantially the same as the pointer image at the rear of the hologram surface when illuminated by a light source. An instrument provided with a hologram for a scale plate on which is recorded. 2. The pointer hologram is made of a transparent disc, the pointer hologram is arranged so as to cover at least a part of the front surface of the scale plate hologram, and the light source is provided on the front surface side of both holograms. The instrument according to claim 1, which is arranged. 3. The scale plate needle hologram is made of a transparent plate, the pointer hologram is arranged on the back surface of the scale plate hologram, and at least a part of the pointer hologram is covered by the scale plate hologram. The instrument according to claim 1, wherein the light source is arranged on the front side of both holograms.