Timepiece

Abstract

The invention provides a timepiece, which can keep the designability and the senior feeling of the timepiece, and can fully illuminate a display part. The light-emitting device includes a light-emitting member and a parting member. The light-emitting component is annular. The parting member at least partially covers the light-emitting member in a plan view from above, and has an inclined surface at a lower portion thereof, the inclined surface being inclined upward as the inclined surface extends from an outer side to an inner side of the machine. The inclined surface of the parting member includes a first inclined surface portion having a linear shape in a cross-sectional view from a plane direction orthogonal to the vertical direction, and a second inclined surface portion having a curved shape below the first inclined surface portion.

Description

Technical Field

[0001] The present disclosure relates to a timepiece. Background Art

[0002] A timepiece is known that has a function of illuminating a display part using a light source such as a light emitting diode (LED) so that the display part such as a dial can be seen even in a dark place (for example, Japanese Patent Laid-Open No. 2007-155595). In a timepiece having such a function, when a portion of the light source with particularly strong luminous intensity is directly located at a position that is easily visible to the user, it is difficult to see the time due to the strong luminous intensity, which further impairs the design or high-end feel of the timepiece. Therefore, it is preferred that the portion with strong luminous intensity is arranged at a position that is as invisible to the user as possible.

[0003] On the other hand, if a portion of the light source with particularly high light emission intensity is arranged at a position that is difficult for the user to see, the light path is easily blocked, so there is a problem that it is difficult to fully illuminate the display portion (display unit). Summary of the invention

[0004] The present disclosure provides a timepiece capable of sufficiently illuminating a display portion.

[0005] A clock of one embodiment has a light-emitting component and a parting component. The light-emitting component is annular. The parting component at least partially covers the light-emitting component when viewed from above, and has an inclined surface at the bottom that is inclined upward as it extends from the outside to the inside of the clock. The inclined surface of the parting component includes: a first inclined surface portion, which has a straight line shape when viewed in section from a plane direction perpendicular to the up and down direction; and a second inclined surface portion, which is located on the lower side of the first inclined surface portion and has a curved shape.

[0006] The effects of the present invention are as follows.

[0007] According to the present disclosure, there is provided a timepiece capable of sufficiently illuminating a display portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a plan view showing the structure of the timepiece according to the embodiment.

[0009] Figure 2 This is an external view of the date wheel in the embodiment as viewed from above.

[0010] Figure 3 This is an external view of a solar cell panel according to an embodiment as viewed from above.

[0011] Figure 4 1 is a schematic diagram showing a part of the internal structure of a timepiece and a part of the optical path of light from a solar cell panel.

[0012] Figure 5AThis is a diagram showing a comparison of the optical paths of reflected light with respect to the light emitted from the solar cell panel due to the differences in the shapes of the inclined surfaces of the parting members.

[0013] Figure 5B This is a diagram showing a comparison of the optical paths of reflected light with respect to the light emitted from the solar cell panel due to the differences in the shapes of the inclined surfaces of the parting members.

[0014] Figure 5C This is a diagram showing a comparison of the optical paths of reflected light with respect to the light emitted from the solar cell panel due to the differences in the shapes of the inclined surfaces of the parting members.

[0015] Figure 6 This is a diagram showing how light reflected by the parting member is further reflected by the time number. DETAILED DESCRIPTION

[0016] Hereinafter, embodiments will be described with reference to the drawings. Figure 1 It is a plan view showing the structure of the timepiece according to the embodiment. Figure 1 This is a top view of the clock as viewed from above. Figure 1 The face of the clock shown is the front face for description. In addition, the structure of the clock shown in each figure described below is sometimes appropriately enlarged, reduced, or omitted for the convenience of description. In addition, the term "annular" in the embodiment does not necessarily mean "circular ring". The term "annular" in the embodiment refers to a closed shape, for example, it may also include shapes other than circular rings such as rectangles. In addition, the "horizontal direction" in the embodiment is not necessarily limited to the horizontal direction relative to the ground, and may also include the direction (plane direction) when observing the clock from the front side.

[0017] like Figure 1 As shown, the watch 10 is, for example, an analog watch, and has a housing 11 constituting an outer contour. The housing 11 is a roughly annular housing, in which the watch module 30 is stored, and a protective glass (windshield) 20 is installed on the surface side of the housing 11. The protective glass 20 is a colorless and transparent glass component having a relatively high light transmittance at least in the visible light region, such as sapphire glass. Therefore, light from the outside (external light) can pass through the protective glass 20 and enter the interior of the housing 11.

[0018] A display unit ( Figure 1 The mold part 18 has a mold parting shape (a region on the inner side of the inner peripheral edge of the surface side of the housing 11). In the present embodiment, the mold part 18 is substantially annular at least when viewed from above. In addition, the mold part 18 is formed of brass, such as Figure 4As shown, the lower part has an inclined surface 180 facing the inner side of the clock 10 (inclined upward as it extends from the outer side of the clock 10 to the inner side). Here, the inclined surface 180 is preferably mirror-finished, for example, electroplated using a material (such as gold) with a relatively high reflectivity, not easily corroded, and easily reflecting light in the red light band described later. In addition, as long as it is a metal material with a relatively high reflectivity, it may not be gold-plated, for example, it may be silver-based plating. However, since the silver plating is more prone to discoloration and corrosion than the gold plating, a transparent coating such as a polyurethane coating may also be applied to the silver plating. In this way, the reduction of the reflectivity of the inclined surface caused by aging, etc. can be prevented.

[0019] At least one reflective member is provided on the upper portion of the parting member 18. In this embodiment, twelve time numerals 14 are arranged at equal intervals at positions corresponding to 1 to 12 o'clock as reflective members. Figure 1 When viewed from above, each time numeral 14 is arranged to extend toward the center (inside) of the clock 10 in a manner that covers a portion of the date wheel 30a described later. In order to avoid decorative components not shown in the figure and arranged in the display portion, the shapes of each time numeral 14 may be slightly different. A slope 14a serving as a third slope portion is formed on the side viewed from above each time numeral 14. The slope 14a is inclined toward the center of the ring forming the parting part 18, that is, the center of the clock 10 (inclined downward as it extends from the outside to the inside of the clock 10) in order to reflect light by the surface, as described later. The slope 14a of each time numeral 14 is perpendicular to the direction orthogonal to the up-down direction (the direction of the clock 10). Figure 1 The angle formed by the inclined surface 14a (the plane direction or horizontal direction in the time number 14) is preferably about 45°-60°. In addition, in order to improve the reflectivity of light on the surface, at least the inclined surface 14a is preferably formed of materials such as gold, silver, stainless steel, etc., and mirror processing based on grinding, electroplating, etc. is implemented. In addition, if surface treatment such as mirror processing is implemented, there may also be bumps in the design. Moreover, not only the inclined surface 14a, but also the side surface 14b which serves as the side surface of the time number 14 (the surface formed by the up and down direction and the plane direction or horizontal direction in the time number 14) may be mirror-processed. In addition, the time number 14 itself may also be formed of materials such as gold, silver, stainless steel, etc.

[0020] Therefore, as described later, substantially all of the visually recognizable surfaces of the time numbers 14 can appropriately reflect light from inside the clock 10, and the reflected light from the inclined surface 14a and the side surface 14b reaches the user's eye E, so that substantially all of the visually recognizable surfaces of each time number 14 appear to glow.

[0021] In addition, regarding the time numeral 14 on the 6 o'clock side, since a plate 19 is provided for the user to identify the date through the date wheel 30a, the area of ​​the inclined surface 14a is smaller than that of the other time numerals 14. However, when the position of the plate 19 is arranged at a position slightly offset along the circumference of the clock 10 (date wheel 30a), the time numeral 14 on the 6 o'clock side can also be set to the same shape as the other time numerals 14.

[0022] The housing 11 is provided with Figure 1 as well as Figure 2 The date wheel 30a is a roughly annular date wheel, which is used to allow the user to identify the date of the portion overlapping with the plate 19 when viewed from above. The date wheel 30a is arranged below the time number 14 in a manner that is covered by a plurality of time numbers 14 when viewed from above. In addition, a tooth portion 30a1 is provided on the inner circumference of the date wheel 30a, and is driven by a driving source and a gear not shown. In addition, a roughly annular solar cell panel 31 described later is provided below the date wheel 30a, and the date wheel 30a is arranged at a predetermined interval from the solar cell panel 31 by a support portion 30a5 provided on the inner circumference of the date wheel 30a.

[0023] In addition, the date wheel 30a retains the outer frame 30a2, the inner frame 30a3 and the text portion 30a4 and is hollowed out. In other words, the date wheel 30a retains the outer frame 30a2, the inner frame 30a3 and the text portion 30a4 and penetrates along the up and down direction. The outer frame 30a2 and the inner frame 30a3 mentioned here respectively include a part connecting the text portion from the outer peripheral side to the inner peripheral side and a part connecting the text portion from the inner peripheral side to the outer peripheral side. Thus, when the clock 10 is observed from above, at least a part of the solar panel 31 can be visually confirmed by the part where the date wheel 30a is pulled out. In addition, from the ease of processing, the date wheel 30a is preferably a metal material or a resin material, but in order to avoid the reflection of light from the solar panel 31 described later, the surface of the preferred date wheel 30a is not a mirror surface.

[0024] At least one portion is provided in an exposed manner on the outer periphery of the housing 11. Figure 1 In the example shown in FIG. 4 , there are four switches 17. Each switch 17 is electrically connected to the clock module to realize a predetermined function.

[0025] In addition, a strap to be worn on the wrist of the user is provided on the outer circumference of the case 11 along the 12 o'clock to 6 o'clock direction of the timepiece 10 .

[0026] When the timepiece 10 is an analog watch, the timepiece module 30 includes hands, a wheel train mechanism, and a movement having a driving source thereof. Figure 1, the three hands of minute hand 21, hour hand 22 and second hand 23 are shown overlapped. Although not shown in the figure, the timepiece module 30 includes a circuit board on which electronic components such as an antenna are mounted, and a secondary battery for supplying power for driving the electronic components.

[0027] Furthermore, a text plate may be installed on at least a portion of the watch module 30 as long as it does not hinder visual confirmation from above the date wheel 30a. In order to allow external light to enter the solar panel 31, when the watch module 30 is equipped with a text plate, the text plate is preferably made of a light-transmitting material such as polycarbonate.

[0028] Figure 3 This is an appearance diagram of the solar cell panel 31 in the embodiment as viewed from above. Figure 3 As shown, the solar cell panel 31 in the embodiment is in a substantially annular shape imitating the parting member 18. The solar cell panel 31 is, for example, an InGaP solar cell panel.

[0029] The solar panel 31 is arranged in the housing 11, and the external light such as sunlight and indoor lights is incident on the solar panel 31 (PN junction layer 31a) to generate current, and the secondary battery is charged by the current. In addition, in the present embodiment, at least a portion of the date wheel 30a is penetrated in the up and down direction, so that the solar panel 31 can be charged by passing the external light through the penetration portion. In addition, as described later, in order to prevent the light with high luminous intensity from directly entering the user's eyes E, or in order not to damage the design and high-grade sense, the date wheel 30a is preferably arranged so that even when the collector electrode 31b is to be observed from an inclined direction, the collector electrode 31b is as much as possible a shadow of the date wheel a.

[0030] The solar cell panel 31 has: three solar cells of approximately equal area; a PN junction layer 31a provided on each solar cell; a collector electrode 31b formed on the upper surface of the PN junction layer; and an electrode layer (not shown) on at least a portion of the lower surface of the PN junction layer 31a. The solar cell panel 31 includes a structure in which the collector electrode 31b, the PN junction layer 31a, and the electrode layer are stacked in sequence from at least the top. At this time, when viewed from the top, there is a portion where the collector electrode 31b, the PN junction layer 31a, and the electrode layer all overlap. In addition, in order to prevent degradation, etc., a colorless and transparent protective film having a relatively high light transmittance at least in the visible light region may also be provided on the upper surface of the PN junction layer 31a.

[0031] The collector electrode 31b is formed near the outer periphery of the substantially annular solar cell panel 31 and is connected to the secondary battery of the watch module 30 via a connection switch, for example. The collector electrode 31b can also be connected to the light source driving circuit of the watch module 30 from the secondary battery by switching the connection switch.

[0032] The solar panel 31 generates electricity by incident light on the PN junction layer 31a of the solar panel 31. When the collector electrode 31b of the solar panel 31 is connected to a secondary battery, the secondary battery is charged by the generated current of the solar panel 31. The electronic components of the watch module 30 can be operated by the power stored in the secondary battery. On the other hand, when the collector electrode 31b of the solar panel 31 is connected to a light source driving circuit, the solar panel 31 emits light by the current supplied from the light source driving circuit via the collector electrode 31b to the PN junction layer 31a. For example, if the PN junction layer 31a is an InGaP layer, the solar panel 31 emits light in the red band with a peak wavelength of about 660nm.

[0033] Here, light emission occurs at the portion of the PN junction layer 31a where current flows (the portion where electrons and holes combine). At this time, current easily flows near the collector electrode 31b (the current density is large), so the PN junction layer 31a emits light particularly strongly along the portion corresponding to the collector electrode 31b, and the farther away from the collector electrode 31b, the weaker the PN junction layer 31a emits light. In other words, the portion near the periphery of the solar cell panel 31 emits light particularly strongly, and the other portions emit light weaker than the portion near the periphery.

[0034] When viewed from above, a portion of the PN junction layer 31a of the solar cell panel 31 is exposed inwardly in a manner extending from the parting member 18 toward the center of the timepiece 10 (at least visually recognizable from above), and the entire circumference of the collector electrode 31b of the solar cell panel 31 cannot be visually recognizable from above at least due to the parting member 18. Strictly speaking, the collector electrode 31b of the solar cell panel 31 is roughly arc-shaped, but since a roughly ring-shaped shape is formed by arranging three roughly arc-shaped collector electrodes 31b, the collector electrode 31b is expressed as a roughly ring-shaped shape.

[0035] In addition, a slope 180 is formed at the lower portion of the parting member 18 that overlaps with the solar cell panel 31 (PN junction layer 31a and collector electrode 31b) when viewed from above, and the slope 180 has a first slope portion 180a and a second slope portion 180b that are continuous surfaces and have different shapes. The collector electrode 31b is configured to overlap with the second slope portion 180b when viewed from above. In addition, the first slope portion 180a and the second slope portion 180b do not necessarily have to be continuous surfaces, and may be slightly separated at the boundary portion.

[0036] Figure 4 1 is a schematic diagram showing a part of the internal structure of the timepiece 10 and a part of the optical path of light from the solar cell panel 31 . Figure 4 Schematically showing the Figure 1 The cross section is observed by cutting along the IV-IV line of the solar cell panel 31. In addition, among the light emitted from the solar cell panel 31, the solid arrow L2 is the light from the vicinity of the collector electrode 31b, and the dotted arrow L1 is the light from the PN junction layer 31a through the date wheel 30a. Figure 1 In FIG. 1 , the pointers (minute hand 21, hour hand 22 and second hand 23) are shown as pointing to the 12 o'clock direction, but for the sake of convenience, Figure 4 In the middle, the pointer is located on the IV-IV line.

[0037] The first inclined surface 180a is an inclined surface formed on the upper side of the inclined surface 180 of the lower part of the parting member 18, and is a tapered inclination that is inclined at an angle of approximately 45° from the outside to the inside of the parting member 18 when viewed in a planar direction or a horizontal direction (the angle formed by the planar direction or the horizontal direction and the first inclined surface 180a is approximately 45°). In other words, the first inclined surface 180a has a straight line shape when viewed in a planar direction or a horizontal direction that is orthogonal to the up-down direction.

[0038] The second inclined surface 180b is an inclined surface formed continuously from the first inclined surface 180a on the lower side of the inclined surface 180 of the lower part of the parting member 18, and is a circular inclination whose angle with the second inclined surface 180b in the plane direction or the horizontal direction changes continuously from about 45° to about 90° when viewed in section. In other words, the second inclined surface 180b has a curved shape when viewed in section from the plane direction or the horizontal direction perpendicular to the up-down direction. The end of the second inclined surface 180b on the side not continuous with the first inclined surface 180a has an angle of about 90° (about 80°-90°) and is as close to the solar cell panel 31 as possible. The interval between the solar cell panel 31 and the second inclined surface 180b can be as small as possible as long as it can at least ensure the insulation between the solar cell panel 31 and the second inclined surface 180b. In addition, an insulating spacer can be sandwiched between the solar cell panel 31 and the second inclined surface 180b to ensure the insulation between the solar cell panel 31 and the second inclined surface 180b. By minimizing the distance between the solar cell panel 31 and the second inclined surface 180b (approximately abutting against each other), and setting the end of the second inclined surface 180b that is not continuous with the first inclined surface 180a to an angle of approximately 90°, it is expected that when the solar cell panel 31 (particularly near the collector electrode 31b) emits light, less light will leak to the outer peripheral side of the timepiece 10. In other words, it is possible to prevent the light emission to the display portion from appearing weak.

[0039] As described above, the date wheel 30a is arranged above the solar panel 31. It is desirable that the position of the rotation axis and the outer diameter of the date wheel 30a are determined so as not to block the light emitted from the solar panel 31 (especially near the collector electrode 31b), that is, the date wheel 30a is located outside the optical path of the light emitted from the vicinity of the collector electrode 31b. For example, if the outer diameter of the date wheel 30a is smaller than the inner diameter of the collector electrode 31b, the date wheel 30a can be arranged outside the optical path of the light emitted from the vicinity of the collector electrode 31b. In addition, the light emitted from the vicinity of the collector electrode 31b means that the light emitted from the PN junction layer 31a that emits light at a position corresponding to the collector electrode 31b is included.

[0040] according to Figure 4 In the structure shown, the light L1, L2 (including incident light and reflected light) emitted from the solar cell panel 31 is reflected by the first inclined surface 180a or the second inclined surface 180b on the optical path. The first inclined surface 180a is an inclined surface set in a manner that the angle formed by the first inclined surface 180a in the plane direction or the horizontal direction is approximately 45°. Therefore, the first inclined surface 180a reflects the light from the PN junction layer 31a mainly in the oblique downward direction, that is, toward the area of ​​the watch 10 that is closer to the inner side than the approximately annular solar cell panel 31. As a result, the vicinity of the center of the watch 10 can be illuminated.

[0041] On the other hand, the second bevel portion 180b is a bevel provided in such a manner that the angle formed by the second bevel portion 180b in the plane direction or the horizontal direction continuously changes from approximately 45° to approximately 90°. Therefore, the second bevel portion 180b reflects the light from the vicinity of the collector electrode 31b mainly toward the oblique upper direction, that is, the center (inside) direction of the clock 10 and toward the pointers (minute hand 21, hour hand 22 and second hand 23). By irradiating the pointers with light from the vicinity of the collector electrode 31b, the pointers appear to emit light. In addition, the luminous intensity of the light from the vicinity of the collector electrode 31b is greater than the luminous intensity of the light from the PN junction layer 31a, so that the vicinity of the center of the clock 10 appears to emit relatively weak light, and the pointers appear to emit relatively strong light. As a result, the pointer appears to be emphasized on the basis of the overall brightening of the display portion. In addition, the curvature of the second bevel portion 180b can also be set so that more light is incident on the time numerals 14.

[0042] In the past, the light emitting diode light source used for lighting of the clock was generally configured as a point light source and embedded in the parting member, so that the time can be barely recognized by the light even in a dark environment, but a part of the display part (for example, only the 5 o'clock direction) emits strong light while the other parts emit uneven light. In contrast, in the present embodiment, the light incident from the position corresponding to the collector electrode 31b is incident on the pointer via (reflection) the first inclined surface 180a or the second inclined surface 180b, and indirectly incident on the user's eye E. In addition, since the solar panel 31 and the parting member 18 are roughly annular, the display part of the clock 10 can be illuminated with a roughly uniform illumination along the ring shape of the parting member 18, and the pointer can be further emphasized and illuminated.

[0043] Figure 5A , Figure 5B , Figure 5C This is a diagram showing a comparison of the optical paths of reflected light relative to the emitted light of the solar cell panel 31 caused by the difference in the shape of the inclined surface of the parting member 18. Figure 5A The optical path of the reflected light in the case where only the tapered inclined surface portion is formed on the parting member 18 is shown. Figure 5B The optical path of the reflected light in the case where the mold release member 18 is formed with only a circular inclined surface portion is shown. Figure 5C FIG. 2 shows the optical path of the reflected light when the mold part 18 is formed with both a tapered inclined surface (first inclined surface 180a) and a circular inclined surface (second inclined surface 180b). Figure 5A , Figure 5B , Figure 5C In FIG. 1 , for convenience of explanation, only a portion of the light emitted from the solar cell panel 31 is schematically shown.

[0044] exist Figure 5A In the case of the above, part of the light La1 from the PN junction layer 31a travels toward the area inside the roughly annular solar cell panel 31 due to the upper part of the inclined surface, so it can illuminate the vicinity of the center of the clock 10. On the other hand, part of the light La2 from the vicinity of the collector electrode 31b travels at a relatively low (lower) position due to the lower part of the inclined surface, so it is shielded from light on the side of the date wheel 30a and other components, and the amount of light toward the pointer is relatively small. In addition, light leakage to the outer peripheral side of the clock 10 may also occur.

[0045] That is, it is preferable to provide a tapered shape on the upper portion of the inclined surface in order to make the display portion emit light, whereas it is not preferable to provide a tapered shape on the lower portion of the inclined surface in order to make the display portion emit light.

[0046] exist Figure 5BIn this case, part of the light Lb2 from the vicinity of the collector electrode 31b travels at a relatively high (upper) position due to the lower portion of the inclined surface, and is therefore not shielded by components such as the date wheel 30a, and a relatively large amount of light travels toward the pointer. On the other hand, part of the light Lb1 from the PN junction layer 31a does not travel toward the center of the watch 10 even if it is reflected by the upper portion of the inclined surface, but travels downward again, and therefore cannot illuminate the vicinity of the center of the watch 10.

[0047] That is, it is preferable to provide a circular shape on the lower part of the inclined surface in order to make the display portion emit light, but it is not preferable to provide a circular shape on the upper part of the inclined surface in order to make the display portion emit light.

[0048] In contrast, Figure 5C In the case of Figure 5A As shown, part of the light Lc1 from the PN junction layer 31a travels toward the area inside the substantially annular solar cell panel 31 due to the upper portion of the inclined surface, and thus can illuminate the vicinity of the center of the timepiece 10. Figure 5B As shown, part of the light Lc2 from the vicinity of the collector electrode 31b travels at a relatively high (upper) position due to the lower part of the inclined surface, so it is not shielded by the date wheel 30a and other components, and the amount of light heading toward the pointer is relatively large. Therefore, the amount of reflected light that is not shielded by the date wheel 30a and other components and reaches the user's eyes can be increased. In other words, by providing a conical shape above the inclined surface 180 and a circular shape below, the display portion including the pointer can be fully illuminated. Furthermore, by adopting a configuration that suppresses the exposure of the collector electrode 31b with a strong luminous intensity, it is possible to prevent the reduction of design or high-grade feeling.

[0049] Moreover, in Figure 5C In the case of Figure 6 As shown, the reflected light can also reach the time numerals 14 on the substantially opposite side of the parting part 18, and the reflected light is further reflected by the inclined surface 14a of each time numeral 14 whose angle is set to about 45°-60°, so that the reflected light from the inclined surface 14a can reach the user's eye E. In other words, the twelve time numerals 14 arranged at equal intervals are mainly illuminated by the light (reflected light) near the collector electrode 31b with strong luminous intensity, so the position of each time numeral 14 can be identified in a short time even in a dark environment, and the user can immediately identify the time. In addition, the angle between the inclined surface 14a of each time numeral 14 and the plane direction or the horizontal direction is preferably about 45°-60°. In addition, when the angle is about 60°, the reflected light from the inclined surface 14a of each time numeral 14 respectively moves toward the center of the clock 10 compared with the case of 45°, so the time numeral 14 looks more emphasized.

[0050] On the other hand, light from the PN junction layer 31a that penetrates the date wheel 30a and light from the vicinity of the collector electrode 31b can be incident on the side surface 14b of the time numerals 14. Therefore, substantially the entire visually recognizable surface of each time numeral 14 appears to be luminous, and the user can clearly identify each time numeral 14 even in a dark environment.

[0051] In addition, if Figure 1 As shown, a black coating (light absorbing layer) is printed on the upper surface of the parting member 18 and on the surface (area) between the time numerals 14. In this case, the time numerals 14 appear to glow in a dark environment, and the light absorbing layer appears to be dark, so that the time numerals 14 appear to extend outward from the clock 10. Thus, the time numerals 14 are also emphasized in a dark environment, so that the user can recognize the time more immediately.

[0052] In addition, it is also expected that the light reflected by the circular slope (second slope 180b) is obliquely incident on the tapered slope (first slope 180a) and is reflected again toward the outside of the parting member 18. This also makes it easier for the amount of light reaching the user's eyes to increase.

[0053] In addition, each time numeral 14 and the solar panel 31 (the portion seen from above the PN junction layer 31a) are brightly illuminated, while the date wheel 30a itself remains dark. At this time, since each time numeral 14 extends toward the center of the clock 10, the date wheel 30a and a portion of the solar panel 31 are not illuminated. Figure 1 In this way, the time numerals 14 are covered and hidden, and the time numerals 14 that appear to glow due to the reflected light are contrasted with the date wheel 30a that remains dark even when the solar panel 31 emits light, so that the time numerals 14 can be made more conspicuous. This is more significant when combined with the above-mentioned light absorbing layer. As a result, the position of each time numeral 14 can be identified in a short time even in a dark environment, so that the user can immediately recognize the time.

[0054] As described above, according to the embodiment, the roughly annular solar cell panel 31 as the light source component is arranged in a manner that a portion overlaps with the roughly annular parting member 18 when viewed from above, and a first inclined portion 180a and a second inclined portion 180b are formed at the lower portion of the parting member 18, thereby hiding the solar cell panel 31 while maintaining the design and high-end feel of the watch, and sufficient illumination of the display portion. In addition, the portion blocked by the parting member 18 is a portion near the collector electrode 31b of the solar cell panel 31 that emits particularly strong light. The portion near the collector electrode 31b is a portion that emits strong light but hardly contributes to power generation. By preventing a portion of the portion that contributes to power generation, such as the PN junction layer 31a, from being blocked by the parting member 18, a reduction in power generation efficiency can also be suppressed.

[0055] The present disclosure is not limited to the above-described embodiments, and various modifications can be made in the implementation stage without departing from the gist of the present disclosure.

[0056] In the above embodiment, a roughly annular solar cell panel 31 is used as the light source component. On the other hand, the light source component does not necessarily need to have a power generation function. That is, the light source component may also be LEDs arranged in a roughly annular shape and an annular light guide component that accommodates each LED. In addition, the light source component does not necessarily have to be formed in a ring shape. For example, the light source component may also be a plurality of point light sources arranged as closely as possible in a roughly annular shape.

[0057] In the above-mentioned embodiment, an analog watch is cited as an example of the clock 10, but it may also be a digital watch having a segment type, dot matrix type, or other liquid crystal display surface inside the solar panel 31. Thus, the entire surrounding of the display unit including the liquid crystal display surface can be illuminated. In addition, in the case of a digital watch, the date wheel 30a and the time numerals 14 may not be provided.

[0058] In addition, in the above-mentioned embodiment, the description is given of the time number 14 that can also make the reflected light reach the substantially opposite side of the parting member 18. However, if, for example, a component having a height (thickness) is arranged in the vertical direction in the inner area of ​​the solar cell panel 31 (for example, a gear, a large decorative component, a magnetic-resistant plate, etc.), then Figure 6As shown, the reflected light cannot reach the time numerals 14 on the substantially opposite side of the parting member 18, and the solar panel 31 (the portion observed from above the PN junction layer 31a) emits light, but the phenomenon that the inclined surface 14a in particular of each time numeral 14 becomes darker occurs. However, as in the above-mentioned embodiment, since each time numeral 14 extends toward the center of the clock 10, in this case, the date wheel 30a and a part of the solar panel 31 (PN junction layer 31a) are also covered by each time numeral 14. By contrasting the luminous solar panel 31 (PN junction layer 31a) with the time numerals 14 and the date wheel 30a that remain dark even when the solar panel 31 emits light, the time numerals 14 can be made conspicuous. As a result, the user can immediately recognize the time even in a dark environment. In addition, in this case, each time numeral 14 can be recognized even without the date wheel 30a.

[0059] In addition, each embodiment may be implemented in combination as appropriate, in which case the combined effect can be obtained. Moreover, various inventions are included in the above-mentioned embodiment, and various inventions can be extracted by selecting a combination from a plurality of disclosed constituent elements. For example, even if a few constituent elements are deleted from all the constituent elements shown in the embodiment, the problem can be solved, and in the case of obtaining an effect, the structure in which the constituent elements are deleted can be extracted as an invention.

Claims

1. A timepiece, characterized in that: have: a ring-shaped light-emitting component; and The annular parting member at least partially covers the light-emitting member when viewed from above, and has an inclined surface at the bottom thereof that inclines upward as it extends from the outside to the inside of the machine, The inclined surface of the parting member includes a first inclined surface having a straight line shape when viewed in section from a plane direction perpendicular to the up-down direction, and a second inclined surface located below the first inclined surface and having a curved line shape.

2. The timepiece according to claim 1, characterized in that At least one reflecting member is provided on the upper part of the above-mentioned parting member, and the reflecting member has a third inclined surface portion which is inclined downward as it extends from the outside to the inside of the machine. The third inclined surface portion has a mirror surface.

3. The timepiece according to claim 2, characterized in that The angle formed between the third inclined surface and the plane direction is 45°-60°.

4. The timepiece according to claim 2, characterized in that The reflecting members are arranged at equal intervals along the circumferential direction of the mold release member when viewed from above.

5. The timepiece according to claim 4, characterized in that The reflective component is twelve time numerals arranged at equal intervals along the circumferential direction of the parting component when viewed from above.

6. The timepiece according to claim 5, characterized in that A light absorbing layer is provided on the upper part of the parting member and in the area between each of the twelve time numbers.

7. The timepiece according to claim 2, characterized in that The reflecting member has a side surface portion along a surface formed by the up-down direction and the planar direction. The side surface has a mirror surface.

8. The timepiece according to claim 2, characterized in that A substantially annular date wheel is provided above the light-emitting member and below the reflective member, the date wheel penetrating in the vertical direction while retaining the outer frame, the inner frame and the text portion. At least a portion of the reflective member extends further to the inside of the device than the separating member so as to cover the date wheel when viewed from above.

9. The timepiece according to claim 8, characterized in that The light emitting component has at least a ring-shaped collector electrode at the top. The collector electrode is disposed at a position overlapping with the second inclined surface portion when viewed from above.

10. The timepiece according to claim 9, characterized in that The outer diameter of the outer peripheral frame of the date indicator is smaller than the inner diameter of the current collecting electrode.

11. The timepiece according to claim 1, characterized in that The end of the second inclined surface portion on the light emitting component side is in contact with the light emitting component. The second slope portion is inclined so that the angle formed with the planar direction approaches 90° as it approaches the light emitting component.

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