JPH1172574A - Timepiece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make recognizable the display time and enable the power saving even in the case where the circumference is dark, by providing a light guide member in the neighborhood of the edge of a pointer, disposing a plurality of illuminators in the peripheral part of a dial, and lighting one of the plurality of the illuminators in response to time. SOLUTION: One of a plurality of illumination means 5 disposed in the peripheral part of a dial 4 is lighted by a lighting control means 13 in response to time. Thereby, a pointer 10 and the dial 4 are illuminated. A part of illumination light is incident on a light guide member provided in the neighborhood of the edge of the pointer 10. Incident illumination light is reflected, and emitted as irregular reflection light from the surface of the member. As a result, an edge part is emitted, and a display time can be recognized even in darkness. The brightness of the periphery of a timepiece is detected with an optical detection means. In the case where it is darker than prescribed brightness, the positions of a minute pointer 12 and an hour pointer 11 are detected with a pointer position detection means, and the illumination means approaching each pointer 10 is lighted. Thereby the pointer 10 and the dial 4 are illuminated. Power saving is enabled by lighting of only the illumination approaching the pointer 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece device which illuminates a pointer or a dial when the surroundings become dark due to sunset or the like, thereby enhancing the visibility of a displayed time.

[0002]

2. Description of the Related Art Today, not only a digital display type clock device but also an analog timepiece device has a handset or a dial illuminated when the surroundings are dark or the like, thereby increasing the visibility of the displayed time from outside. Is used. Among them, the following clock devices have been known as illuminated clock devices that illuminate hands and a dial. One of them is to install a light source such as a light emitting diode inside the pointer shaft, form a through hole in the pointer and guide the light of the light source to the tip of the pointer so that the position of the pointer can be recognized. This is a clock device. There is also a timepiece device in which the visibility of the hands is enhanced in the same manner as described above by incorporating a light emitting diode for each hand.

As another timepiece device, a dial is made of a light guide plate, a light source is provided inside the case of the timepiece device, and the dial itself is illuminated so that the positions of the hour hand and minute hand can be recognized. There are also things. Regardless of the type of illuminated timepiece device, C is usually placed on the front face of the dial or the side face of the housing.
A photoelectric conversion element such as a dS cell is provided. In each of these, each light source is automatically activated by sensing the surrounding brightness, so that the displayed time can be easily known regardless of the surrounding brightness.

[0004]

Most timepieces with illumination are driven by batteries, and a power source for emitting light from the light source is generally taken from the same battery. In the above-mentioned timepiece device, for example, in the former case, it is necessary to transmit light to the tips of the hands through through holes formed in the hour hand and the minute hand, so a strong light source is required, and battery consumption is relatively quick. Also in the latter case, a strong light source is required because the dial itself is illuminated, and it is difficult to maintain a long battery life as in the former case.

The present invention has been made in view of the above-mentioned problems, and has as its object to provide a timepiece device which can easily recognize a display time even when the surroundings are dark and consumes very little power. Is to do.

[0006]

In order to achieve the above object, a timepiece apparatus according to the present invention is provided with a pointer provided with a light guide member at least in the vicinity of the front end, and a dial arranged around the dial, It has a plurality of lighting means for illuminating the panel, and a lighting control means for lighting any one of the plurality of lighting means according to time.

The timepiece device of the present invention preferably has a hand position detecting means for detecting the position of the hand, and a light detecting means for detecting the brightness around the timepiece device. The means, when the brightness detected by the light detection means is equal to or less than a predetermined brightness, according to the position of the hands detected by the hand position detection means, The lighting means is turned on, and when the brightness detected by the light detection means exceeds a predetermined brightness, the lighting means being turned on is turned off.

The light guide member of the timepiece device according to the present invention is preferably provided with a reflection film for returning the light emitted from the light guide member to the inside of the light guide member on a surface facing the dial. I have. The timepiece device of the present invention has a pointer provided with a light-collecting member at least in the vicinity of the distal end, and a plurality of illumination means arranged around the dial and illuminating the dial, and the light-collecting member Are arranged such that the emission surface of the light-collecting member faces the front side of the timepiece device.

According to the timepiece device of the present invention, one of the plurality of illuminating units arranged around the dial is turned on by the lighting control unit in accordance with the time. Thus, the hands and the dial are illuminated. Part of the illumination light enters a light guide member provided near the tip of the pointer. In the light guide member, the incident illumination light is reflected and emitted from the surface of the light guide member as irregularly reflected light. As a result, the tip of the pointer emits light, and the display time can be recognized even in darkness.

Further, according to the timepiece device of the present invention, the brightness around the timepiece device is detected by the light detecting means. When the detected result is darker than the predetermined brightness, the position of the minute hand and the hour hand are detected by the pointer position detecting means, and the lighting means closest to each hand is turned on. As a result, the hands and the dial are illuminated, and are emitted as diffusely reflected light from the surface of the light guide member, as described above. as a result,
The tip of the hands emits light, and the display time of the clock device can be easily recognized even in the dark. In addition, since the lighting control means only turns on the lighting means closest to each hand, power consumption is suppressed.

Further, according to the timepiece device of the present invention, a plurality of illuminating means arranged around the dial are turned on, and the hands and the dial are illuminated. Part of the illumination light is incident on a light collecting member provided near the tip of the pointer. In the light-collecting member, the incident illumination light is guided to the light-emitting surface of the light-collecting member facing the front side of the timepiece device and is emitted. As a result, the tip of the pointer emits light, and the display time can be recognized even in darkness.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment] A first embodiment of a timepiece apparatus with illumination according to the present invention will be described below with reference to FIGS. The clock device with illumination according to the present invention (hereinafter, “clock device”)
1), four corners of a space sandwiched between a glass surface of a front portion 3 of a housing 2 of the timepiece device 1 and a dial 4 inside the housing 2 as shown in FIGS. Four light-emitting diodes 5 as illumination means are arranged, and a CdS sensor 6 as light detection means is mounted on the surface of the dial 4 inside the housing 2. FIG. 1 is a front view showing a first embodiment of an illuminated analog timepiece device according to the present invention.
FIG. 2 is a partial cross-sectional view of the analog timepiece device with illumination shown in FIG.

As shown in FIG. 2, the dial 4 is provided with a partition plate 7.
The movement 8 is fixed to the back of the partition plate 7. The movement 8 rotates the rotating shaft 9 based on constant vibration generated by the crystal oscillator,
Further, a pointer 10 is supported on the rotating shaft 9. Guideline 1
Reference numeral 0 denotes an hour hand 11 and a minute hand 12, and an hour hand 1
1 is supported on the rotating shaft 9a, and the minute hand 12 is supported on the rotating shaft 9b. In addition, the rotating shaft 9a is formed of a hollow pipe, and the rotating shaft 9b is disposed therein. As a result, the hour hand 11 and the minute hand 12 can rotate at different periods without interfering with each other.

The hour hand 11 is, as shown in FIG.
a, and is provided so as to surround the tip of the needle portion 11a,
The light guide plate 11b emits light by receiving incident light from the light emitting diode 5, and a reflection film 11c provided on a surface of the light guide plate 11b facing the dial 4. Light guide plate 1
In 1b, a fluorescent dye is compounded so as to emit light in a secondary color and fluorescent color by incident light. In addition,
FIG. 3 is a diagram for explaining a state in which the hour hand of the present timepiece with illumination receives light. A method of emitting light when light enters the light guide plate 11b will be described later. Like the hour hand 11, the minute hand 12 also includes a hand 12a, a light guide plate 12b, and a reflective film 12c.

The light emitting diodes 5 are arranged at the four corners inside the housing 2 as described above, and the optical axes of the light emitting diodes 5 are respectively oriented in the direction of the center of the dial 4, that is, the rotation axis 9.
And fixed to the inner wall on the side surface of the housing 2. As shown in FIG. 2, the light emitting diodes 5 face the light guide plate 11b and the light guide plate 12b, respectively.
Light can be irradiated in the vertical direction on the light entrance surfaces of the light guide plates 11b and 12b. CdS sensor 6
As shown in FIG. 1, is installed between the rotating shaft 9 and the character “6” written on the dial 4, and the sensing unit of the CdS sensor 6 is disposed in the in-plane direction of the dial 4 surface. Fixed to exist.

The partition plate 7 is installed along the inner side wall of the housing 2 so as to divide the inside of the housing 2 of the timepiece device 1 into two parts. The movement 8, the control device 13, the battery box and the like are fixed to the back surface of the partition plate 7, and the dial 4 is fixed to the front surface of the partition plate 7. A hole is provided near the center of the partition plate 7 to allow the rotation shaft 9 to pass therethrough. The rotation of the movement 8 fixed to the back surface of the partition plate 7 is controlled by the hour hand 11 and the rotation hand 9 via the rotation shaft 9a and the rotation shaft 9b. It can be transmitted to the minute hand 12.

Next, a method of emitting light when the pointer 10 is illuminated by the light emitting diode 5 will be described with reference to FIG. 3 using the hour hand 11 as an example. In the timepiece device 1, the brightness around the timepiece device is detected by the CdS sensor 6. As a result, when it is determined that the brightness is lower than the predetermined brightness, the light emitting diode 5 closest to the hour hand 11 is turned on. Thereby, the hour hand 11 and the dial 4 are illuminated. Some of the illumination light B1, C1 and D1 are incident on a light guide plate 11b provided near the tip of the hour hand 11.

The incident light B1 enters the light guide plate 11b while repeating irregular reflection in the light guide plate 11b (arrow B2).
Thereafter, the light is reflected by the reflective film 11c provided on the surface of the light guide plate 11b facing the dial 4 (arrow B3), and further undergoes irregular reflection. Finally, the light is reflected from the exit surface 111b on the front side of the housing of the light guide plate 11b. Emitted as light (arrow B
4). The reflection film 11c prevents the incident light of the light emitting diode 5 that has entered the light guide plate 11b from being emitted to the dial 4 side, increases the light collection rate of the light guide plate 11b, and
The reflection film 11c is generally preferably a white film that totally reflects light.

The incident light C1 repeats diffuse reflection in the light guide plate 11b and further penetrates into the inside (arrow C2), and is finally emitted from the light exit surface 111b on the front side of the housing of the light guide plate 11b. (Arrow C3). Similarly, the incident light D1 also enters the interior of the light guide plate 11b while repeatedly undergoing irregular reflection (arrow D2), and is emitted from the end surface of the light guide plate 11b on the rotating shaft 9 side as irregular reflection light (arrow D3). . The light guide plate 11b provided at the tip of the hour hand 11 emits light by these emitted lights B4, C3, D3, and the like,
The dial 4 is illuminated so that the display time can be read even in darkness.

Next, wiring in the timepiece device 1 of the present embodiment will be described with reference to FIG. FIG. 4 is an internal connection diagram of the timepiece device with illumination. The control device 13 includes an hour input terminal 15 connected to an hour signal output terminal of the movement 8 (not shown) and a time code input terminal 16 connected to a time code output terminal of the movement 8 (not shown).
As shown in FIG. 4, the hour input terminal 15 is connected to the hour contact 17, and the time code input terminal 16 is connected to a plurality of time code contacts 18.

The control device 13 has a monitor input terminal 19 for monitoring the operation state of the timepiece device 1 and a reset terminal 20 for resetting the operation state of the timepiece device 1. The monitor input terminal 19 is connected to the monitor switch 21. The reset terminals 20 are connected to reset switches 22, respectively. The control device 13 has a detection input terminal 23 and a detection output terminal 24, and the detection input terminal 23 and the detection output terminal 2
4 through a detection resistor 25 disposed between the CdS
It is connected to the sensor 6.

Further, the control device 13 has four output terminals 2 for connecting the four light emitting diodes 5a to 5d and lighting them.
6a to 26d. The control device 13 has a lighting control device for the light emitting diode 5 therein, and the configuration and control method of the lighting control device will be described later.
Each of the output terminals 26 a to 26 d is connected to a first limiting resistor 27.
a to the fourth switching transistor 28a through the fourth limiting resistor 27d
d is connected to each base terminal.

Each emitter terminal of the first switching transistor 28a to the fourth switching transistor 28d is connected to the positive side of the power supply, and each collector terminal is connected via the first protection resistor 29a to the fourth protection resistor 29d. They are connected to light emitting diodes 5a to 5d. The other ends of the light emitting diodes 5a to 5d are connected to the negative side of the power supply. Thereby, the output terminal 26a
26d, a lighting signal is output from the light emitting diode 5
a to 5d will light up.

A control device for turning on the light emitting diode 5 of the timepiece device 1 according to the present embodiment will be described with reference to FIG. FIG. 5 is a block diagram for explaining a lighting control device of a light emitting diode of the timepiece device with illumination.
The lighting control device of the light emitting diode 5 includes a lighting control circuit 13a incorporated in the control device 13, pulse number counters 8a and 8b as pointer position detecting means forming an input portion of the lighting control device, and a light detecting device. And a light emitting diode 5 as illumination means forming an output section of the lighting control device.

The pulse number counters 8a and 8b are counters for counting output pulse signals from a step motor for driving the hour hand 11 and a step motor for driving the minute hand 12 provided inside the movement 8, and based on the count numbers. The positions of the hour hand 11 and the minute hand 12 can be detected.

However, there is also a timepiece device 1 in which the hour hand 11 and the minute hand 12 are rotationally driven by one driving step motor. In this case, as the position detecting means of the minute hand 12,
Similarly to the above, a method using the pulse number counter 8b is used, but as a position detecting means of the hour hand 11, a time code plate is incorporated in the movement 8 and a time code signal output from the movement 8 is read. , The position of the hour hand 11 is detected.

Next, a lighting control method of the light emitting diode 5 will be described with reference to FIG. FIG. 6 is a flowchart of a lighting control method of the light emitting diode of the present analog timepiece device with illumination. Before starting the operation of the timepiece device 1, first, an initial setting such as an accurate time adjustment is performed (S10).
1). After the initial setting, the CdS sensor 6 determines the surrounding brightness (S102). The light / dark judgment is made based on whether or not the predetermined minute voltage initially applied to the CdS sensor 6 increases with the amount of incident light.

The resistance value of the CdS sensor 6 decreases when the incident light amount is large, and the resistance value increases when the incident light amount is small. When the voltage applied to the CdS sensor 6 exceeds a predetermined minute voltage, the surroundings are bright. It is determined that the surroundings are dark if the voltage decreases.

If it is determined that the surroundings are bright based on the detection signal from the CdS sensor 6 ("Y" is selected in S102),
The light emitting diode 5 being turned on is turned off (S103), and the flow of the lighting control method of the light emitting diode 5 is all bypassed. When it is determined that the surroundings are dark at sunset or the like based on the detection signal from the CdS sensor 6 (“N” is selected in S102), the output setting of the lighting signal of the light emitting diodes 5 is performed, and the lighting of all the light emitting diodes 5 is OK. A signal wait state is entered (S104).

Next, the positions of the hour hand 11 and the minute hand 12 are detected by the pulse number counters 8a and 8b, respectively (S105). The pulse number counters 8a and 8b
It counts the number of pulses of a pulse signal output to the step motor for driving the 1 and minute hands 12, and the positions of the hands 11 and the minute hand 12 are detected based on the counted values.

After the positions of the hands 11 and the minute hand 12 have been detected, the CdS sensor 6 again determines the brightness (S106). If it is determined that the surroundings are bright at this stage ("Y" is selected in S106), the state of waiting for the lighting OK signal of the light emitting diode 5 is cleared (S103), and the flow of the lighting control method of the light emitting diode 5 is bypassed. .
If it is determined that the surroundings are dark at this stage (S10
6, "N" is selected), and based on the positions of the hands 10 detected by the pulse number counters 8a and 8b, which light emitting diode 5 is to be turned on is determined (S107).
With this determination, the light emitting diode 5 at the corresponding location is turned on.

With the passage of time, the pointer 11 and the minute hand 12
Moves, but at the same time, the lighting position of the light emitting diode 5 also changes. Therefore, for a given time,
For example, it is determined every one second whether or not the lighting position of the light emitting diode 5 needs to be changed over time (S10).
8). If it is not necessary to change the lighting position of the light emitting diode 5 ("N" is selected in S109), the process returns to the immediately preceding stage, and it is repeatedly determined whether the lighting position needs to be changed within a predetermined time (S108). To S109).

If it is necessary to change the lighting position of the light emitting diode 5 ("Y" is selected in S109), the pulse number counter 8
A new position of each pointer 10 is detected by a and 8b (S105). Three times at this stage, the CdS sensor determines the brightness (S106). According to the light / dark judgment, when it is determined that the image is “dark” at the time of the second light / dark judgment (“N” is selected in S102), a loop (S10) is entered.
5 to S109). That is, if the surroundings are bright at this point ("Y" in S106).
Selection), the state of waiting for the lighting OK signal of the light emitting diode 5 is cleared (S103), and the flow of the lighting control method of the light emitting diode 5 is bypassed. Therefore, the timepiece device 1 returns to the normal operation state such as the daytime.

At this stage, if the surroundings are still dark (S106)
In “N” selection, the lighting position of the light emitting diode 5 is determined based on the new position of each pointer 10 detected by the pulse number counters 8a and 8b (S107), and the light emission with the lapse of time is performed again. It is determined whether the lighting position of the diode 5 needs to be changed (S108 to S109).
The above-described series of flows (S105 to S109) is performed by using Cd
The process is continued until the surroundings are determined to be bright by the S sensor 6.

Next, the lighting position of the light emitting diode 5 moves in accordance with the elapse of time, that is, the movement of the positions of the hands 11 and the minute hand 12. 7, 8, and 9 show how the state changes from a minimum of one place to a maximum of four places in accordance with the movement of.
This will be described with reference to FIG.

FIGS. 7, 8 and 9 are front views for explaining the change of the lighting location of the light-emitting diode with time of the illuminated analog timepiece device, and FIG. 7 (a).
7 shows the light emitting diode lighting position at 12:00, FIG. 7B shows the light emitting diode lighting position at 12:10, and FIG. 8A shows the light emitting diode light at 12:30. 8 (b) shows a light emitting diode lighting position at 12:45. FIG. 9 shows the lighted portions of the light emitting diode at 6:00.

As shown in FIG. 7A, when the time is exactly 12:00, the hour hand 11 and the minute hand 12 overlap each other.
At this time, the light emitting diodes 5 closest to the hour hand 11 and the minute hand 12 are 5a and 5d. Therefore, at exactly 12:00, the light emitting diodes 5a and 5d are turned on by the lighting control means 13a.

As shown in FIG. 7 (b), after 12:00,
The hour hand 11 and the minute hand 12 move clockwise. In this case, only the light emitting diode 5a has the hour hand 11 and the minute hand 12
, The light emitting diode 5d is turned off by the lighting control means 13a. Therefore, from immediately after 12:00 to immediately before 12:15, the light emitting diode 5a
Only one location is lit.

After 12:15, the hour hand 11 is also closest to the light emitting diode 5a, but the minute hand 12 is closest to the light emitting diode 5b, so that the light emitting diode 5b is turned on by the lighting control means 13a. Is done. Therefore, from immediately after 12:15 to immediately before 12:30, the two light emitting diodes 5a and 5b are lit.

As shown in FIG. 8A, when the time is exactly 12:30, the hour hand 11 is the same, but the minute hand 12 is closest not only to the light emitting diode 5b but also to the light emitting diode 5c. The light emitting diode 5c is lit by the lighting control means 13a. Therefore, at 12:30
In the case of correctness, three of the light emitting diodes 5a, 5b and 5c
The location is lit.

After 12:30, the hour hand 11 remains the same, but the minute hand 12 comes closest to only the light emitting diode 5c, so that the light emitting diode 5b is turned off by the lighting control means 13a. Therefore, from immediately after 12:30 to immediately before 12:45, the light emitting diode 5a
And 5c are lit.

As shown in FIG. 8B, when the time is exactly 12:45, the hour hand 11 is the same, but the minute hand 12 is closest to the light emitting diode 5c as well as the light emitting diode 5d. The light emitting diode 5d is turned on by the lighting control means 13a. Therefore, 12: 4
In the case of just 5 minutes, the three light emitting diodes 5a, 5c and 5d are lit.

After 12:45, the hour hand 11 remains the same, but the minute hand 12 comes closest to the light emitting diode 5d, so that the light emitting diode 5c is turned off by the lighting control means 13a. Therefore, as in the case of 12:00, the two light emitting diodes 5a and 5d are lit from immediately after 12:45 to immediately before 1:15.

As shown in FIG. 9, when the time is exactly 6 o'clock, the hour hand 11 and the minute hand 12 are connected to all the light emitting diodes 5a and 5a.
Since the light emitting diodes 5 are equally close to b, 5c, and 5d, all four light emitting diodes 5 are turned on by the lighting control means 13a. As described above, the pointer 11 and the minute hand 1
The lighting position of the light-emitting diode 5 moves in accordance with the movement of the position 2, and the number of light-emitting diodes 5 changes from at least one location to at most four locations.

In the first embodiment, the light emitting diode 5 is used as the lighting means, but an electric light or the like may be used instead. In any case, it is desirable to use an object that consumes as little power as possible. Further, in the first embodiment, the light emitting diodes 5 are provided at the four corners of the so-called facing portion of the timepiece device 1. However, as shown in FIG. 10, the number of the light emitting diodes 5 may be further increased. FIG. 10 is a front view showing an embodiment of a timepiece device with illumination when the number of light emitting diodes is increased.

The timepiece device 1 shown in FIG. 10 uses a total of six light emitting diodes 5. In this case, each guideline 1
In the case of 0, the pointer 10 and the dial 4 emerge more clearly because the light from the light emitting diode 5 which is closer is received. As a result, the visibility of the display time from outside is further improved.

As described above, according to the first embodiment, when the surroundings are dark, only the light emitting diode 5 closest to each of the hour hand 11 and the minute hand 12 is turned on.
In the hour hand 11 and the minute hand 12, the light guide plate 11b and the light guide plate 12b are formed of a light guide member. Thereby, light from the light emitting diode 5 is received and the light guide plates 11b, 12b
Since the light is emitted, the display time can be easily read. Further, since the number of light-emitting diodes 5 to be lit is minimized, power consumption can be reduced.

[Second Embodiment] A second embodiment of the present invention will be described with reference to FIG. 3 used in the description of the first embodiment. As shown in FIG. 3, the hour hand 11 according to the present embodiment is provided so as to surround a needle 11 a pivotally supported by a rotating shaft 9 a (not shown) and a tip of the needle 11 a. A light collector 11b that emits light by receiving incident light from the light source 5;
And a reflection film 11c provided on the surface facing the surface.

Similarly, the minute hand 12 is provided so as to surround a needle portion 12a pivotally supported by a rotating shaft 9b (not shown) and a tip portion of the needle portion 12a, and receives incident light from the light emitting diode 5. Light-collecting plate 12b that emits light
b reflective film 12 provided on the surface facing dial 4
c. The configuration of the other parts of the present embodiment is the same as that of the first embodiment already described, and will not be described again.

In this embodiment, as described above, light collectors 11b and 12b are used in place of the light guide plates 11b and 12b in the first embodiment. The light collectors 11b and 12b
A special fluorescent dye is contained, and the surrounding light of the light emitting diode 5 and the like can be captured by the special fluorescent dye. The captured light is collected by the light collector 11b,
Inside the light collector 12b, the light is changed to a fluorescent color by a fluorescent dye and becomes new light having a longer wavelength and is emitted to the outside of the light collectors 11b and 12b.

However, the light collectors 11b and 12b
Since the structure is such that light cannot be emitted from surfaces other than the emission surfaces 111b and 121b, most (70 to 80%) of the long-wavelength light having the fluorescent color is reflected again according to the law of total reflection. Are returned to the inside of the light collectors 11b and 12b. The reflected light is transmitted to the exit surfaces 11 of the light collectors 11b and 12b.
1b and 121b are guided and gathered, and finally,
Light is emitted from the emission surfaces 111b, 121b of the light collectors 11b, 12b to the outside in a dense state. As a result, the tips of the hour hand 11 and the minute hand 12 emit light, and the dial 4
Is illuminated, and the display time can be read even in darkness.

As described above, according to the present embodiment, since the light collectors 11b and 12b are provided at the tips of the hour hand 11 and the minute hand 12, external light is more concentrated and the light is more dense. In this state, the light is emitted to the outside. Thereby, the visibility of the display time is further improved.

[0053]

According to the timepiece apparatus of the present invention, the tip of the pointer emits light by the light from the lighting means which lights up according to the time. Thus, the display time of the clock device can be easily read even in darkness.

Further, according to the timepiece device of the present invention, when the surroundings are dark, the lighting means closest to each hand is turned on.
The tip of the pointer emits light by the light from the illumination means.
Thus, the display time can be easily read even in darkness. Further, since the number of illuminating means is always kept to a minimum, power consumption can be reduced.

Further, according to the timepiece device of the present invention, the light-collecting member is provided at the tip of the pointer. Thereby, external light is further condensed, and the light is emitted to the outside in a dense state, so that the visibility at the display time is further improved.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a timepiece apparatus with illumination according to the present invention.

FIG. 2 is a partial cross-sectional view of the timepiece device with illumination shown in FIG. 1 along AA.

FIG. 3 is a view for explaining a state when the hour hand of the timepiece device with illumination receives light.

FIG. 4 is an internal connection diagram of the timepiece device with illumination.

FIG. 5 is a block diagram for explaining a lighting control device of a light emitting diode of the timepiece device with illumination.

FIG. 6 is a flowchart of a lighting control method of a light emitting diode of the timepiece device with illumination.

FIG. 7 is a diagram for explaining a change in a lighting location of a light emitting diode with time of the present timepiece device with illumination;
(A) is a front view showing a lighting location of the light emitting diode at 12:00, and (b) is a front view showing a lighting location of the light emitting diode at 12:10.

FIG. 8 is a diagram for explaining a change in a lighting position of a light emitting diode with time of the present timepiece device with illumination;
(A) is a front view showing a lighting location of the light emitting diode at 12:30, and (b) is a front view showing a lighting location of the light emitting diode at 12:45.

FIG. 9 is a front view showing a lighting position of a light emitting diode when the timepiece apparatus with illumination is 6:00.

FIG. 10 is a front view showing another embodiment of the timepiece device with illumination when the number of light emitting diodes is increased.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Clock device with illumination 2 ... Case 3 ... Front part of case 4 ... Dial 5 ... Light emitting diode 6 ... CdS sensor 7 ... Partition plate 8 ... Movement 8a, 8b ... Pulse counter for hour and minute hands 9 ... Rotation axis 9a, 9b: rotary shaft for hour hand and minute hand 10: pointer 11: hour hand 11a: needle portion 11b: light guide plate 111b: emission surface 11c: reflection film 12: minute hand 12a: needle portion 12b: light guide plate 121b: emission surface 12c: reflection Membrane 13 Control device 13a Lighting control circuit 15 Hour input terminal 16 Time code input terminal 17 Hour contact 18 Time code contact 19 Monitor input terminal 20 Reset terminal 21 Monitor switch 22 Reset switch 23 ... Detection input terminal 24 ... Detection output terminal 25 ... Detection resistor 26 ... Light emitting diode output terminal 27 ... Limiting resistor 28 ... Switching tiger Transistor 29… Protective resistor

Claims (4)

[Claims] 1. A pointer provided with a light guide member at least in the vicinity of the tip, a plurality of illuminating means arranged around the dial and illuminating the dial, and the plurality of illuminating means according to time. A timepiece device having lighting control means for lighting any one of the above. 2. A hand position detecting means for detecting the position of the hands, and a light detecting means for detecting brightness of a peripheral portion of the timepiece device, wherein the lighting control means is detected by the light detecting means. If the brightness is equal to or less than a predetermined brightness, the lighting means closest to the tip of each hand is turned on in accordance with the position of the hand detected by the hand position detecting means, and the light detecting means is turned on. 2. The timepiece device according to claim 1, wherein when the detected brightness exceeds a predetermined brightness, the illuminating means that is lit is turned off. 3. The light guide member according to claim 1, wherein a reflection film for returning light emitted from the light guide member to the inside of the light guide member is provided on a surface facing the dial. Clock device. 4. A pointer having a light-collecting member provided at least in the vicinity of the front end, and a plurality of illuminating means arranged around the dial and illuminating the dial, wherein the light-collecting member comprises: A timepiece device arranged such that the light exit surface of the light collecting member faces the front side of the timepiece device.