JP2003028679A - Emission pointer and measuring instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To move a mixture in a liquid-like fluid to travel in the fluid, or to provide an emission pointer effectively utilizing the characteristics of a liquid crystal and a measuring instrument using the emission pointer. SOLUTION: A pointer body 50c in the emission pointer 50 comprises a vessel 53, liquid 54 that is sealed into the vessel 53, and a number of granular light dispersion materials 55 that are mixed into the liquid 54. Each light dispersion material 55 flows in the liquid 54 according to the rotation of the pointer body 50c, and scatters light that enters from a rear end face 53b of the vessel 53 and at the same time emits from the surface of the vessel 53.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument suitable for use in, for example, an automobile and a light emitting pointer thereof.

[0002]

2. Description of the Related Art Conventionally, in a passenger car instrument, an actual flattening
There is one provided with a light emitting pointer as disclosed in Japanese Patent No. 3928. The light emitting pointer includes a pointer main body and a light emitting diode, and the pointer main body is formed by mixing a light dispersion material in a transparent resin material. Further, the light emitting diode is built in the rear portion of the pointer main body. As a result, the light emitting pointer causes the light of the light emitting diode to be guided inside the pointer main body toward the tip portion thereof, thereby causing the pointer main body to emit light.

[0003]

By the way, in the light emitting pointer of the above instrument, since the transparent resin material constituting the pointer main body is solid as described above, the light dispersion material does not move in the pointer main body. . Therefore, even if the main body of the pointer emits light uniformly over the entire length based on the light of the light emitting diode, it is too simple and uninteresting to simply emit light in this way, and the user's taste has become more diverse in recent years. It causes a problem that it cannot respond to.

For this, as disclosed in Japanese Patent Laid-Open No. 5-40050, it is conceivable to use a light emitting pointer composed of a discharge tube filled with a gas such as xenon or neon. However, even with such a light emitting pointer, merely discharging the discharge tube causes uniform light emission as a light emitting pointer, and the above problem cannot be solved.

In view of the above, according to the present invention, the contaminants in the liquid fluid can move in the fluid, or the emission guideline and the emission that effectively utilize the characteristics of the liquid crystal. The purpose is to provide an instrument using a guide.

[0006]

In order to solve the above-mentioned problems, in the luminous pointer according to the invention described in claim 1, a long transparent container (53) and a liquid fluid (54) sealed in this container are provided. And a pointer body (50c) having a large number of granular optical action materials (55) mixed in this fluid,
Light incident on the rear end surface (53b) of the container is guided by a fluid toward the front end of the container, and the light thus guided is guided by the optical action of each optical working material to the surface (53c) of the container. ) To emit light from the pointer body.

As described above, since the liquid fluid is enclosed in the container and a large number of granular optical acting materials are mixed in the fluid, each optical acting material flows in the liquid according to the rotation of the pointer main body. However, the light emission position from the surface of the container also moves. As a result, the light emitting portion of the pointer body moves, and a light emitting pointer having a novel appearance can be provided.

According to a second aspect of the invention, in the first aspect of the invention, the large number of granular optical action materials are a large number of granular light dispersion materials or granular fluorescent materials. As a result, the function and effect of the invention described in claim 1 can be achieved more reliably.

Further, in the light emitting pointer according to the invention described in claim 3, the elongated transparent container (53), the liquid fluid (54) enclosed in the container, and at least one of the fluids mixed in the fluid are provided. A pointer body (50 having a sphere (57)
c), and the light incident from the rear end face (53b) into the container is guided by the fluid toward the tip of the container, and the light thus guided is guided to the surface of the container by the optical action of the sphere. The light is emitted from (53c) to cause the pointer body to emit light.

As a result, in response to the rotation of the pointer body, the sphere moves in the liquid while giving an optical effect to the light in the liquid, and the light emission position from the surface of the container also moves. Therefore, the light emitting portion of the main body of the pointer moves to provide a light emitting pointer having a novel appearance.

Further, in the invention described in claim 4, the sphere is formed of a magnetic material, and the sphere moves in the fluid in the container by an external magnetic field. The optical action causes the light guided in the fluid to be emitted from the surface of the container to cause the pointer body to emit light.

As a result, the sphere is placed at a position different from the position in the container due to the rotation of the pointer main body according to its own weight.
Since it moves under the action of an external magnetic field, the action and effect of the invention described in claim 3 can be improved to a novel level.

Further, in the light emitting pointer according to the invention described in claim 5, the transparent container (53) having an elongated shape, the liquid fluid (54) enclosed in the container, and at least one of the fluids mixed with the fluid are provided. A pointer body (50) having a bubble (58)
c), and the light incident from the rear end face (53b) into the container is guided by the fluid toward the front end of the container, and the light thus guided is directed to the surface of the container by the optical action of the bubbles. The light is emitted from (53c) to cause the pointer body to emit light.

As a result, when the pointer body rotates, the brightest portion of the pointer body emits light in response to the rotation.
Since the bubbles move according to the movement along the longitudinal direction of the pointer main body, the indication of the light emitting pointer gives novel visibility.

The light emitting pointer according to the invention of claim 6 is provided with a pointer main body (50c) having an elongated transparent container (53) and a liquid crystal enclosed in the container,
Light incident from the rear end face (53b) into the container is incident on the liquid crystal, and the light distribution direction of the liquid crystal is controlled so that the light from the liquid crystal is emitted from the surface (53c) of the container to cause the pointer body to emit light. .

As a result, the light emission state of the pointer main body is changed by the light distribution control of the liquid crystal, so that novel visibility can be provided for the light emission pointer.

According to the seventh aspect of the present invention, there is provided an instrument according to any one of the first to sixth aspects, wherein the scale plate (30) is supported in an inclined shape and the scale plate is rotated along the surface of the scale plate. And the light emitting pointer described in.

As a result, it is possible to provide an instrument equipped with a light emitting pointer capable of achieving the action and effect according to any one of claims 1 to 6.

The reference numerals in parentheses of the above-mentioned means indicate the correspondence with the concrete means described in the embodiments described later.

[0020]

DETAILED DESCRIPTION OF THE INVENTION Each embodiment of the present invention will be described below with reference to the drawings.

(First Embodiment) FIGS. 1 and 2 show a first embodiment in which the present invention is applied to a passenger car instrument. This instrument is provided as a speedometer in a portion of the instrument panel provided in the passenger compartment of the passenger car, which is located in front of the driver's seat in the passenger compartment (hereinafter referred to as a front portion).

The instrument is provided with a casing 10, an annular dial plate 20, and a scale plate 30. The dial plate 20 is attached to the opening of the casing 10 at the outer peripheral portion of the bottom wall 21 thereof. There is. The scale plate 30 is the casing 1
In the opening 0, the bottom wall 21 of the dial plate 20 is mounted from the back side so as to face the opening 21a. In addition, in the first embodiment, in order that an occupant seated in the driver's seat can visually recognize the surface of the scale board 30, the instrument has a scale corresponding to the upper portion of the scale panel 30 shown in FIG. The scale plate 30 is tilted so as to be positioned on the front side and the upper side of the passenger vehicle, and is arranged in the front portion of the instrument panel.

Further, the instrument is provided with a rotating internal unit 40 and a light emitting pointer 50. The rotating inner unit 40 includes an inner unit body 41.
And a pointer shaft 42, and the inner unit main body 41 is mounted on the bottom wall 11 of the casing 10. The pointer shaft 42 extends from the rotary inner unit 41 to the through hole portion 3 of the scale plate 30.
It is rotatably extended into the inside of 1.

As shown in FIG. 2, the light emitting pointer 50 includes a support member 50a, a cap 50b, and a pointer main body 50c.
And a light emitting diode 50d. The support member 50a includes a support plate 51a and a tubular boss 51b extending in a T-shape from the center of the back surface of the support plate 51a. The support member 50a uses the boss 51b to rotate the pointer shaft 42a. Is coaxially supported at the tip of the. Thereby, the support plate 51a is located in parallel along the surface of the scale plate 30.

The cap 50b is made of a light-shielding material and has a substantially U-shaped cross section, and the cap 50b is fitted to the support plate 51a at its opening end 52a.

The pointer main body 50c has an elongated container 53. The container 53 is made of a transparent material and has a U-shaped cross section. The container 53 has a rear end portion 53a.
At the thick wall portion 5 formed on a part of the peripheral wall of the cap 50b.
2b, and extends in parallel from the rear end portion 53a along the surface of the scale plate 30. The transparent material that forms the container 53 may be glass, acrylic resin, or polycarbonate.

A transparent liquid 54 such as water or oil is enclosed in the container 53, and a large number of granular light dispersion materials 55 are mixed in the liquid 54. As a result, light that enters the liquid 54 from the rear end surface 53 b of the container 53 as described below is dispersed by the respective light dispersion materials 55, and the liquid 5 is dispersed.
The light is guided by 4 and emitted from the surface 53c of the container 53. This means that the pointer main body 50c, and thus the light emitting pointer 50, emits light on the surface 53c of the container 53.

The light emitting diode 50d includes a supporting member 50a.
The light emitting portion 56 of the light emitting diode 50d faces the rear end surface 53b of the container 53. Thereby, the light emitting diode 50d
Causes the light emitted from the light emitting portion 56 to enter the container 53 from the rear end face 53b.

In the first embodiment thus constructed, as described above, the graduation plate 30 is arranged such that the upper portion in the figure in FIG. 1 is located on the front side and the upper side of the passenger car than the lower portion in the figure. , The pointer main body 50c of the light emitting pointer 50 is supported in parallel along the surface of the graduation plate 30.

Therefore, when the light emitting pointer 50 is at the position shown in FIG. 1, the pointer main body 50c is inclined downward to the left in the drawing with reference to the cap 50b. Therefore, each light dispersion material 55 in the pointer main body 50c moves in the liquid 54 in the container 53 based on its own weight, and gathers on the container 53, and thus on the tip end side of the pointer main body 50c.

In this state, when the light from the light emitting diode 50d enters the pointer main body 50c from the rear end surface 53b of the container 53, the light is reflected by the liquid 54 in the container 53 and reaches the tip of the container 53. Guided toward. At this time, since the respective light dispersion materials 55 are gathered on the tip end side of the pointer main body 50c as described above, the light guided by the liquid 54 becomes closer to the rear end side of the container 53 than the respective light dispersion materials 55. The frequency of dispersion by the light dispersion materials 55 is low, and the frequency of dispersion by the respective light dispersion materials 55 is high toward the tip end side of the container 53. Therefore, the emission brightness of the surface 53c of the pointer main body 50c is lower on the rear end side of the container 53 and higher on the front end side of the container 53. Therefore, the light emitting pointer 50 emits brighter light as it goes to the tip end side of the pointer main body 50c.

In such a state, when the light emitting pointer 50 is rotated by the rotating internal unit 40 with the start of the engine of the passenger car, the pointer main body 50c moves from the position shown in FIG. 1 to the clockwise direction in the drawing. Rotate. Then, the pointer body 50c
Is located so as to extend upward in the drawing with respect to the cap 50b. In this process, the container 5
Each light dispersion material 55 in 3 flows in the liquid 54 toward the rear end portion 53a of the container 53. Therefore, the light guided by the liquid 54 is more frequently dispersed by the respective light dispersion materials 55 toward the rear end side of the container 53, and is dispersed by the respective light dispersion materials 55 toward the front end side of the container 53. Less frequently. Therefore, the emission brightness of the surface 53c of the pointer main body 50c is higher on the rear end side of the container 53 and lower on the front end side of the container 53. Therefore, the brightest part of the light emitting pointer 50 moves from the front end side to the rear end side of the container 53 in accordance with the clockwise rotation of the pointer main body 50c.

After that, when the light emitting pointer 50 is further rotated clockwise, the pointer main body 50c is positioned so as to be inclined downward to the right in the figure with respect to the cap 50b. Along with this, each light dispersion material 55 in the container 53 flows again in the liquid 54 toward the tip end side of the container 53. Therefore, the light guided by the liquid 54 is less frequently dispersed by the respective light dispersion materials 55 toward the rear end side of the container 53,
The frequency of dispersion by the respective light dispersion materials 55 becomes higher toward the tip end side of the container 53. Therefore, the surface 53 of the pointer main body 50c
The emission brightness of c is lower toward the rear end of the container 53,
Becomes higher on the tip side of. Therefore, the brightest light emitting portion of the light emitting pointer 50 moves from the rear end side to the front end side of the container 53 in accordance with the further clockwise rotation of the pointer main body 50c.

As described above, the light emitting pointer 50 is shown in FIG.
When rotated clockwise in the figure, the brightest light emitting portion of the light emitting pointer 50 moves in response to this rotation.
Since it moves along the longitudinal direction of c, the indication of the light emitting pointer 50 gives novel visibility. Moreover, even if the light emitting pointer 50 rotates counterclockwise in FIG.
It can be achieved as well.

(Second Embodiment) FIG. 3 shows a second embodiment of the present invention. In the second embodiment, the first
In the liquid 54 enclosed in the container 53 of the pointer main body 50c described in the embodiment, a single sphere 57 is mixed in place of each fluorescent material 55. Here, the sphere 57 is formed of a colorless transparent resin material. Other configurations are the same as those in the first embodiment.

In the second embodiment constructed as described above, as in the case described in the first embodiment, when the light emitting pointer 50 is at the position shown in FIG. 1, the pointer main body 50c.
Is inclined to the lower left in the drawing with reference to the cap 50b. Therefore, the sphere 57 in the pointer main body 50c moves in the liquid 54 in the container 53 based on its own weight,
As shown by the solid line in FIG. 3, it is located within the tip of the container 53.

In this state, as in the first embodiment, the light of the light emitting diode 50d enters the pointer main body 50c from the rear end surface 53b of the container 53, and the liquid 54 in the container 53 causes the container 54 to receive the light. When the light is guided toward the front end of the container 53, the light is emitted from the spherical body 5 located inside the front end of the container 53.
It is incident on 7 and scattered, and is emitted from the tip of the surface 53 c of the container 53. Therefore, the light emitting pointer 50 emits bright light at the tip of the pointer main body 50c.

In this state, the pointer body 50c of the light emitting pointer 50 is the same as that described in the first embodiment.
However, when it is rotated clockwise from the position shown in FIG.
Along with this, the sphere 57 in the container 53, due to its own weight, in the liquid 54, as shown by the broken line in FIG.
The container 53 moves to the rear end portion 53a side. With this movement, the position in the container 53 where the light guided by the liquid 54 enters the sphere 57 and is scattered moves to the rear end portion 53a side of the container 53 according to the movement of the sphere 57. To go.
Therefore, the brightly emitting portion of the surface 53c of the pointer main body 50c moves toward the rear end portion 53a of the container 53 in response to the movement of the sphere 57.

After that, as in the first embodiment, the pointer body 50 is further rotated by further rotating the light emitting pointer 50.
When c is positioned so as to be inclined downward in the right side in FIG. 1 with reference to the cap 50b, the sphere 57 in the container 53 moves to the tip end side of the container 53 in the liquid 54 again. To go. Therefore, according to this movement, the pointer main body 50
The brightly emitting part of the surface 53c of c is the container 53
Move to the tip side of.

As described above, in the second embodiment, when the light emitting pointer 50 rotates in the clockwise direction shown in FIG. 1, the brightest light emitting portion of the light emitting pointer 50 responds to this rotation. Since the sphere 57 moves in accordance with the movement along the longitudinal direction of the pointer main body 50c, the indication of the light emitting pointer 50 gives novel visibility. In addition, the above-mentioned effects
Even if the light emitting pointer 50 rotates counterclockwise in FIG. 1, the same effect can be achieved.

(Third Embodiment) FIG. 4 shows a third embodiment of the present invention. In the third embodiment, the first
In the liquid 54 enclosed in the container 53 of the pointer main body 50c described in the embodiment, a single colorless and transparent bubble 58 is mixed in place of each fluorescent material 55. Other configurations are the same as those in the first embodiment.

In the third embodiment thus constructed, as in the case described in the first embodiment, when the light emitting pointer 50 is at the position shown in FIG. 1, the pointer main body 50c.
Is inclined to the lower left in the drawing with reference to the cap 50b. Therefore, the bubbles 58 in the pointer main body 50c move in the liquid 54 in the container 53 based on the buoyancy,
As shown by the solid line in FIG. 3, it is located on the rear end portion 53a side in the container 53.

In this state, when the light from the light emitting diode 50d enters from the rear end surface 53b of the container 53 into the pointer main body 50c in the same manner as in the first embodiment, this light is
The air bubbles 58 located on the rear end side of the container 53 are incident, scattered, and emitted from the rear end of the surface 53c of the container 53. Therefore, the light emitting pointer 50 emits bright light at the rear end portion of the pointer main body 50c.

In such a state, the pointer body 50c of the light emitting pointer 50 is the same as that described in the first embodiment.
However, when it is rotated clockwise from the position shown in FIG.
Along with this, the bubbles 58 in the container 53, due to the buoyancy, in the liquid 54, as shown by the broken line in FIG.
It moves to the tip side of the container 53. With this move,
The position in the container 53 where the light of the light emitting diode 50d guided by the liquid 54 enters the bubble 58 and is scattered is
In accordance with the above movement of the bubbles 58, the bubbles 58 move to the tip end side of the container 53. Therefore, the brightly emitting portion of the surface 53c of the pointer main body 50c moves toward the tip of the container 53 in response to the movement of the bubble 58.

After that, as described in the first embodiment, the pointer body 50 is further rotated by further rotating the light emitting pointer 50.
When c is positioned so as to be inclined downward in the right side in FIG. 1 with respect to the cap 50b, the bubbles 58 in the container 53 are again buoyant in the container 54 in the liquid 54.
3 Move to the rear end side. Therefore, in accordance with this movement, the brightly emitting portion of the surface 53c of the pointer main body 50c moves to the rear end side of the container 53.

As described above, in the third embodiment, when the light emitting pointer 50 rotates clockwise in FIG. 1, the brightest light emitting portion of the light emitting pointer 50 responds to the rotation. Since the bubble 58 moves in accordance with the movement along the longitudinal direction of the pointer main body 50c, the indication of the light emitting pointer 50 gives novel visibility. In addition, the above-mentioned effects
Even if the light emitting pointer 50 rotates counterclockwise in FIG. 1, the same effect can be achieved.

In implementing the present invention, the liquid 54 in the container 53 of the pointer main body 50c described in the first embodiment.
Even if a large number of granular fluorescent materials are mixed therein instead of the respective light dispersion materials 55, the fluorescent materials exhibit a fluorescent effect, so that each of the fluorescent materials can rotate the light emission pointer 50. Depending on,
The liquid 54 flows through the inside of the liquid 54 in the same manner as each of the light dispersion materials 55, and the same effect as that of the first embodiment can be achieved.

Further, in implementing the present invention, even if a paint such as blue or red is mixed in the liquid 54 described in the first embodiment, instead of each light dispersion material 55,
Since the coating material receives light and emits blue or red light, the coating material is liquid 5 according to the rotation of the light emitting pointer 50.
The inside of 4 flows like each light dispersion material 55, and the same operation effect as the above-mentioned 1st embodiment can be achieved.

In carrying out the present invention, instead of the liquid 54 described in each of the above embodiments, a highly viscous pasty fluid or other liquid fluid may be enclosed in the container 53.

Further, in carrying out the present invention, the sphere 57 described in the second embodiment is not limited to a colorless transparent resin material, and may be formed of a colorless transparent glass material, for example. It may be formed of a resin material, a glass material, or an opaque reflective material. Further, the number of the spheres 57 mixed in the liquid 54 is not limited to one and may be plural.

In implementing the present invention, the sphere 57 described in the second embodiment may be made of a magnetic material. In this case, the sphere 57 may be formed on the inner peripheral surface of the opening 21a of the dial plate 20. If a large number of coils are arranged along the circumferential direction of the coils and the magnetic force generated when these coils are excited is generated in the radial direction of the opening 21a, the tip of the pointer main body 50c of these coils will be located. By controlling the direction in which the magnetic force of the opposing coil (hereinafter referred to as the opposing coil) is generated, the sphere 5 that receives the action of the magnetic force that changes in this way.
7 moves to a position different from the position in the liquid 54 due to the rotation of the pointer main body 50c according to its own weight. As a result, the novel visibility described in the second embodiment can be further improved. Also, unlike the inner peripheral surface of the opening 21a, the coils are arranged along the outer peripheral portion of the surface of the graduation plate 30 so that the magnetic force of each coil is applied to the tip of the container 53 from the rear surface to the front surface. Even if it occurs toward the side or in the opposite direction, the same effect can be achieved. Also,
There may be a plurality of spheres 57 formed of a magnetic material.

Further, in implementing the present invention, the sphere 57 described in the second embodiment may be made of a metallic non-transparent sphere. In this case, the non-translucent sphere moves inside the liquid 57 like the sphere 57 and reflects the light of the light emitting diode 50 d entering the container 53 to reflect the light in the container 5.
Since the light is emitted from the surface of No. 3, it is possible to achieve substantially the same effect as that of the second embodiment.

In each of the above embodiments, the light emitting pointer 50
Although an example in which the light emitting diode 50d itself is provided has been described, instead of this, a light source is arranged above the pointer main body 50c so that the light source makes the light incident on the surface of the container 53 of the pointer main body 50c. , Light emitting diode 5
You may abolish 0d. In addition, the entire scale plate 30 is made transparent, and the scale plate 30 is illuminated by a light source from the back side thereof to emit light, and the light of the scale plate 30 is made incident into the container 53 from the back side. The light emitting diode 50d may be eliminated.

In implementing the present invention, unlike the above embodiments, a light source is arranged on the back side of the through hole 31 of the graduation plate 30 and the light of this light source is passed through the through hole 31 into the container 53. Alternatively, the light emitting diode 50d may be eliminated by introducing it from the rear end thereof.

In implementing the present invention, a light source such as a lamp may be adopted instead of the light emitting diode 50d.

Further, in carrying out the present invention, liquid crystal is sealed in the container 53 in place of the sealed liquid 54 in the container 53 of the pointer main body 50c and its mixture described in the above embodiments, and A plurality of electrodes for driving the liquid crystal are provided on the peripheral wall of the container 53, and the light of the light emitting diode 50d is made incident from the rear end face 53b of the container 53 into the liquid crystal, and the liquid crystal is arranged through the electrodes. Even if the light direction is controlled, it is possible to secure the novel visibility of the instruction by the light emitting pointer 50.

Further, in carrying out the present invention, the present invention is not limited to passenger car measuring instruments, and the present invention may be applied to light emitting pointers of various vehicle measuring instruments and other various measuring instruments.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of main parts taken along line 2-2 in FIG.

FIG. 3 is a cross-sectional view of essential parts showing a second embodiment of the present invention.

FIG. 4 is a cross-sectional view of essential parts showing a third embodiment of the present invention.

[Explanation of symbols]

30 ... Scale board, 50c ... Main body of pointer, 53 ... Container, 53
b ... rear end face, 53c ... surface, 54 ... liquid, 55 ... light dispersion material, 57 ... sphere, 58 ... air bubble.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme coat (reference) G09F 13/24 G09F 13/24 Z F term (reference) 2F074 AA04 BB06 DD02 EE02 FF02 FF10 2H088 EA23 HA01 MA01 3D044 BC07 BD13 5C096 AA01 AA11 BA01 BB48 CD06 CD53 EA03 EA10 FA11

Claims (7)

[Claims] 1. A pointer body (1) having an elongated transparent container (53), a liquid fluid (54) enclosed in the container, and a large number of granular optical action materials (55) mixed in the fluid. 50c), the rear end face (53
Light incident from b) is guided by the fluid toward the tip of the container, and the light guided in this way is caused by the optical action of each of the optical acting materials to the surface (53c) of the container.
A light emitting pointer that emits light from the light source to cause the pointer body to emit light. 2. The light emitting pointer according to claim 1, wherein the plurality of granular optical acting materials are a plurality of granular light dispersion materials or granular fluorescent materials. 3. A pointer main body (50c) having an elongated transparent container (53), a liquid fluid (54) enclosed in the container, and at least one sphere (57) mixed in the fluid. In order to provide the rear end face (53
The light incident from b) is guided by the fluid toward the tip of the container, and the light guided in this way is emitted from the surface (53c) of the container by the optical action of the sphere, and A luminous pointer that illuminates the pointer body. 4. The sphere is made of a magnetic material,
The sphere is configured to move in the fluid in the container by an external magnetic field, and the sphere emits light guided into the fluid from the surface of the container by its optical action. The luminous pointer according to claim 3, wherein the pointer main body is caused to emit light. 5. A pointer body (50c) having an elongated transparent container (53), a liquid fluid (54) enclosed in the container, and at least one bubble (58) mixed in the fluid. In order to provide the rear end face (53
The light incident from b) is guided by the fluid toward the tip portion of the container, and the light guided in this way is emitted from the surface (53c) of the container by the optical action of the bubbles, and A luminous pointer that illuminates the pointer body. 6. A pointer main body (50c) having an elongated transparent container (53) and a liquid crystal sealed in the container, wherein light incident from the rear end face (53b) into the container is provided. The light from the liquid crystal is incident on the liquid crystal and the light distribution direction of the liquid crystal is controlled to allow the light from the liquid crystal to enter the surface (53) of the container.
A luminous pointer that is emitted from c) to cause the pointer body to emit light. 7. A graduation plate (30) supported in an inclined manner.
An instrument comprising: and a light emitting pointer according to any one of claims 1 to 6, which rotates along the surface of the scale board.