CN1199880A - Index dial for solar watch and clock and solar watch and clock - Google Patents

Abstract

The invention relates to a good metal appearance by relaxing limitation on color aspect due to solar cell for improved design characteristics. The solution: among metal films that constitute a dial 20, a nickel thin-film 24 formed relatively thin, functions as coloring and anti-decoloring for a silver thin-film 26. The other nickel thin-film 28 formed relatively thin, functions as anti-decoloring for the silver thin-film 26. Such silver thinfilm 26 as formed relatively thick acts as generating metal appearance. When the dial 20 is viewed from a wind-shield glass 14 side, the color of silver thin-film 26 is seen through a base plate 22 and the nickel thin-film 24, and the dial 20 appears as metal color of profound gloss which is silver color.

Description

Lettered dial that the sun power clock and watch are used and sun power clock and watch

The lettered dial that the present invention relates to use the sun power clock and watch of solar cell to use, and the sun power clock and watch that use this dial plate.

With the solar cell that adopts monocrystalline silicon and amorphous silicon etc. sun power clock and watch as drive source, use continuously owing to can not change battery, help environmental protection simultaneously and day by day arouse attention.That implements to generate electricity with regard to its absorbing light concerns that this sun power clock and watch are the lettered dial place below windshield normally for the aspect, the solar cell that configuration is constructed by the mode that can make outside light incident.The color of solar cell is unique darkviolet, so can not obtain other individual color.This makes and has been subjected to very big restriction aspect the colour planning on the character code card, and the beautiful outline form perception is worsened.Because it is ornamental that clock and watch have toward contact except functional, so also need to make the sun power clock and watch to have better profile aesthetic feeling.

If for instance,, be devoted to improve one of technology formerly of the beautiful outline form perception of this sun power clock and watch exactly by the disclosed solar battery apparatus of Japanese kokai publication hei 5-29641 communique.Fig. 4 is the sectional view of its major part, and is just as shown in the drawing, is provided with actuating unit 902 in the cardinal principle centre of the shell 900 that slightly is the U font, drives the indicator 904 that is positioned at shell 900 openings thus, to demonstrate the time.Open side at shell 900 is provided with windshield 906, and the place is provided with solar cell 908 in the bottom.But also be formed with dyed layer 910 as lettered dial in the mode that lid is covering this solar cell 908.Dyed layer 910 can make the light transmission of a part of wavelength of solar cell 908 generating usefulness, and the light in reflect visible light zone.When therefore observing clock and watch, can see the color suitable, and solar cell 908 is stashed, it be cannot see from the outside with the reflected light of dyed layer 910 by the lettered dial side.

That Fig. 5 shows is disclosed by Japanese kokai publication hei 7-72266 communique, as another sectional view of the major part of technology formerly.Just as shown in the drawing, outside packing 922 parts 920 that keep out the wind that are made of clear glass form, and the inside bottom of packing 922 is provided with actuating unit 924 outside this, thereby drives indicator 926.Downside at indicator 926 is provided with lettered dial 928.Be provided with lid in the surface of lettered dial 928 and cover parts 930, dispose solar cell 932 in its lower section.Covering the color of covering parts 930 can be selected, thereby has alleviated the restriction aspect the profile aesthetic.

The clock and watch that a kind of inner face that covers parts 930 in aforementioned cover is formed with step-like through hole are disclosed in Japanese kokai publication hei 7-244174 communique.Can make transmitted light produce scattering by this step-like through hole, thereby make solar cell 932 be difficult to be seen.In the disclosed clock and watch of Japanese kokai publication hei 7-294667 communique, the surface ratio inner face that aforementioned cover is covered parts 930 is little, covers parts 930 and sees solar cell 932 so can not see through lid.Can see that by the component side of keeping out the wind lid covers the ceramic pigment that parts 930 provide.

And Japan is real opens clear 63-156090 communique and also disclose a kind of solar cell type wrist-watch, it is by forming electrification component (solar units) on a side of glass substrate, form simultaneously the mode of ornamental light transmission resin layer, in that to guarantee to improve it under the prerequisite of solar battery efficiency ornamental in another side.

Above-mentioned each formerly technology by plastics and resin are carried out painted mode and can improve the beautiful outline form perception to a certain extent.Yet their color dullness does not particularly have the metal sense, promptly can not obtain so-called metal sense.For wrist-watch or the like because they also have bejewlled meaning, thereby require its can produce thick and heavy, show metal sense high-grade atmosphere, that be silvering and gold plate or the like.

The present invention will solve aforesaid problem exactly, its objective is to provide a kind of restriction that can relax solar cell to the color surface, simultaneously the good metal sense can be obtained, and then the lettered dial that the sun power clock and watch of excellent beautiful outline form perception are used can be obtained, and the sun power clock and watch.

In order to realize aforesaid purpose, the invention provides the lettered dial that a kind of sun power clock and watch are used, it is characterized in that it has the substrate that is made of film; Be formed on this substrate the solar cell side the surface, make a part of incident light can be transmitted through the metallic film of solar cell side.Main form of implementation of the present invention also comprises, can carry out concavo-convex processing on the surface of the component side of keeping out the wind of aforesaid base plate.Or also be formed with the protective film that protection aforementioned metal film is used, and make the aforementioned metal film with respect to the combination film of aforesaid base plate in conjunction with usefulness.Other form of implementation comprises making and constitutes the electrode that film dual-purpose that aforesaid lettered dial uses is done the light incident side of solar cell.The present invention also provides corresponding sun power clock and watch, it is characterized in that having the lettered dial that aforementioned any sun power clock and watch are used.

The present invention has adopted with the light transmission metallic film and in mode that cannot see solar cell it has been stashed, and obtains its gloss simultaneously and has lettered dial thick and heavy sense, the profile aesthetic feeling.And can be easy to implement to make with the film treatment technology, so can also improve generation efficient.Can also utilize formed protective film to prevent the variable color of metallic film.And can utilize formed combination film and make substrate and metallic film keep good binding.For other layer structure of lettered dial, can obtain various metal senses by processing, thereby alleviate the restriction aspect the profile aesthetic each layer.Aforementioned purpose of the present invention and other purpose, feature, advantage can better be understood by acquisition in following detailed description and the accompanying drawing.

Fig. 1 cuts the back open when the direction shown in the arrow is observed for expression along the line #1 among Fig. 2 (A), as the sectional view of the major part of the sun power clock and watch of first embodiment.

Fig. 2 (A) is the front view (FV) of the sun power clock and watch of expression first embodiment, and Fig. 2 (B) is the enlarged diagram of the major part of expression section as shown in Figure 1.

Fig. 3 (A) is the sectional view of the major part of expression second embodiment, and Fig. 3 (B) is the sectional view of the major part of expression the 3rd embodiment.

Fig. 4 is a sectional view of representing the major part of the sun power clock and watch in the technology formerly.

Fig. 5 is another sectional view of the major part of the sun power clock and watch in the technology formerly of expression.

The implication of the reference number in the accompanying drawing is:

10 shells

12 actuating units

14 windshield

16 indicators

18 solar cells

20 lettered dials

22 substrates

24,28 nickel made membranes

26 silvery films

30 expressions are the mark of usefulness constantly

40 three-layered metal film

42 light-to-current inversion films

44 chromium made membranes

50 combination films

52 metallic films

To describe the mode of embodiment with reference to the accompanying drawings in detail, all forms of implementation of the present invention are described below.

[first embodiment]

At first the first embodiment of the present invention is described with reference to figure 1 and Fig. 2.Fig. 1 cuts the sectional view of back when the direction shown in the arrow is observed for expression open along the line #1 among Fig. 2 (A), and Fig. 2 (A) is its front view (FV), and Fig. 2 (B) is the amplification profile of its major part.Just as shown in these figures, receive in the bottom of circular housing 10 actuating unit 12 is housed, be provided with windshield 14 in the open side of shell 10.Centre at actuating unit 12 is provided with the indicator 16 that comprises hour hands, minute hand, second hand.Windshield one side as sensitive surface on actuating unit 12 also disposes solar cell 18, is provided with lettered dial 20 in the above.Indicator 16 drives operation by actuating unit 12, with demonstration time (referring to Fig. 2 (A)) in the space that is made of windshield 14 and lettered dial 20.

Below the lettered dial 20 as the major part of present embodiment is described.As the amplification of Fig. 2 (B) sectional view shown in, lettered dial 20 is made of the metal film of the three-decker of 8～10nm, and this metal film is to be formed by the nickel made membrane 28 of the silvery film 26 of the nickel made membrane 24 of the 1～2nm that is positioned at substrate 22 inner face places, 6～7nm, 1～2nm lamination successively.If for instance, solar cell 18 can be used the transparency electrode that is made of tin indium oxide (ITO), the light-to-current inversion layer that is made of amorphous silicon, the metal electrode lamination that is made of the chromium made membrane constitute, and is that the mode of lettered dial 20 sides disposes according to making the transparency electrode side.

Manufacturing process to this lettered dial 20 describes below.At first preparation be processed into reservation shape, thickness is the substrate 22 about 0.4～0.5mm.Substrate 22 can adopt such as transparent resin sheet materials such as polycarbonate, acrylic acids and constitute.If necessary, can also on the surface of the windshield side of substrate 22, implement surface working, be shape and radial concaveconvex shape in length and breadth with formation by mould pressing method, metallic brush method or Ginding process or the like.And then by vacuum deposition method, sputtering method, CVD method, ion plating method, electro-plating method or the like, at the nickel made membrane 24 of the medial surface of this substrate 22 1～2nm on lamination is provided with successively, the silvery film 26 of 6～7nm, the nickel made membrane 28 of 1～2nm.Lettered dial 20 lids that will have this structure cover on the solar cell 18 that is installed in as shown in Figure 1.And also be formed with in the surface of substrate 22 shown in Fig. 2 (A), show the suitable mark 30 of usefulness constantly.

Effect to present embodiment describes below.In the metal film of constituting word code-disc 20, it is gorgeous and prevent the function of its variable color that the relatively thin nickel made membrane 24 of formation has the color that makes silvery film 26.And another the relatively thinner nickel made membrane 28 that forms has the function that prevents 26 variable colors of silvery film.Form thicker silvery film 26 and be used to produce the metal sense.When observing by windshield 14 sides when being printed on the lettered dial 20 of literal, the color that can see silvery film 26 by substrate 22 and nickel made membrane 24.Because it is thinner that nickel made membrane 24 forms, so the color that shows the silvery film 26 that is positioned at its rear side that can focus on.Therefore when observing lettered dial 20, can see a kind of argenteous, gloss with metal sense.In the occasion of the surface of substrate 22 being carried out compression molding and surface working,, can also obtain certain look white and steady texture by character code dial plate 20 by consequent light reflection.Whole lettered dial 20 also is used as the semi-permeable mirror of solar cell 18, thus can be with solar cell 18 good stashing, and be difficult for being observed.

And in the present embodiment, metal film layer is formed on the inner face side of substrate 22, so when carrying out side installation exercise (assembling operation), substrate 22 can be protected metal film layer, and then prevents damage and pollutes this metal film layer.Silver tends to produce variable color under action of ultraviolet ray, utilize plastic plate as substrate 22 or the like to prevent that ultraviolet ray from seeing through, and just can prevent from advance to occur because of the problem that ultraviolet ray makes silvery film 26 produce variable colors.Silver also tends to produce variable color under the effect of sulfiding gas, block contacting of air and 26 of silvery films by nickel made membrane 24,28 is set, and can prevent in advance that just silvery film 26 is owing to variable color that this reason produced.

The light that is incident on the lettered dial 20 can be by substrate 22 and each layer metallic film reflection-absorption, in the present embodiment, lettered dial 20 for wavelength be the optical transmission rate of 600nm more than 43%, thereby can promptly maintain good surface appearance, can make the solar cell good operation again.In metallic film, also can not be provided for the nickel made membrane 24 that makes color gorgeous, nickel made membrane 24 can certainly be set as required.

[second embodiment]

(A) illustrates the second embodiment of the present invention below with reference to accompanying drawing 3.In aforesaid first embodiment, solar cell and lettered dial are provided with respectively, but in this embodiment, shown in the amplification profile of the major part of Fig. 3 (A), be at the inner face place of lettered dial lamination solar cell to be set, and the metallic film of lettered dial one a side electrode as solar cell is used with the film treatment technology.In other words be exactly, inner face place at the substrate 22 of aforementioned lettered dial 20, lamination forms the three-layered metal film 40 that is made of nickel made membrane 24, silvery film 26, nickel made membrane 28, and with the electrode (transparency electrode of light incident side) of these three-layered metal film 40 integral body as solar cell.On the whole inner face of nickel made membrane 28, form thickness and be light-to-current inversion film 42 1 μ m, that constitute by amorphous silicon etc., and lamination be provided with as another electrode, thickness is the chromium made membrane 44 of 1 μ m.This that is to say that in the present embodiment, solar cell 18 usefulness form such as thin film techniques such as sputters.Other part is all identical with aforesaid first embodiment.

If adopt this structure to constitute, can adopt the film treatment technology easily to form lettered dial and solar cell fully, and then can improve generation rate.And owing to be to be formed on the light-to-current inversion film at almost whole inner face place of lettered dial as the light receiving surface of solar cell, so can also obtain bigger output.Be an electrode three-layered metal film 40 dual-purposes that the sense of generation metal is used being made solar cell here,, can also omit the transparency electrode of solar cell so compare with aforesaid first embodiment.Therefore can not produce the light reflection and the decay that cause by transparency electrode, thereby can reduce the attenuation rate of the light that arrives light-to-current inversion film 42 places.This can also further make lettered dial and the slimming of solar cell part.

[the 3rd embodiment]

(B) illustrates the third embodiment of the present invention below with reference to accompanying drawing 3.In the foregoing embodiments, the substrate of lettered dial constitutes with three-layered metal film, but in this embodiment, and shown in the amplification profile of the major part of Fig. 3 (B), metallic film has double-layer structure.The film 52 that the sense of acquisition metal is used is basic one deck, the occasion of these metallic film 52 driving fits on substrate 22 can also be formed with the combination film 50 that is used to improve adaptation.Thinner by what combination film 50 was formed, can also significantly reduce influence to color.And, can also utilize film 50 or 52 dual-purposes to do the electrode of its light incident side as second embodiment if when solar cell 18 is arranged on the downside of the film 52 that is used to obtain the metal sense.

[other embodiment]

According to top disclosed content, can also obtain various deformation form of implementation of the present invention.If for instance, the present invention also includes following form.

(1) in aforesaid first embodiment, is to be the main stor(e)y three-decker metallic film that forms, but also can adopts the structure that is essentially individual layer in order to silver.Can also adopt sandwich construction,, improve adaptation with respect to substrate to prevent the appearance of aforesaid variable color or the like problem, can also be by the constituent material of a part of film of change and the mode of thickness, the shade of color of the metal sense that control is produced.And adopting the occasion of rhythmo structure, and in order to obtain needed metal sense, and guarantee the output of solar cell, also need the thickness of layer structure integral body is taken in.When the light transmission of whole lettered dial is 50% left and right sides, can obtain good output.

(2) in the aforementioned embodiment, be to utilize the silver coating of silvery film to obtain the metal sense, but also can adopt other material to obtain the metal sense.If for instance, utilize the nickel made membrane about 10nm can obtain similar silver color, utilize the chromium made membrane about 8nm can obtain slightly darker silver color.But also the metallic film that can adopt other obtains the metal sense, such as can adopt golden made membrane about 8nm to obtain gold, adopt the silver color of aluminum laminated films about 10nm to obtain to become clear, copper film about employing 10nm adopts the silver color of platinum made membrane to obtain to become clear about 8nm to obtain the black tea look.Also can adopt alloy material to obtain the metal sense.

(3) for using silver and copper or the like occasion of the metal of variable color easily, preferably also as mentioned above, the nickel made membrane that the lamination setting shields etc.This protection also can be adopted other material except metal with film.If for instance, transparent resin is exactly a kind of good material.

(4) in the foregoing embodiments, used transparent substrate 22, but also can by making this painted color and the equitant mode of film color, can also further improve the profile aesthetic feeling this substrate staining.

(5) if necessary, solar cell can also be set respectively.If at this moment the form of separating by solar cell is provided with, can also be in appearance and the overlapping setting of the shape of metal sense, thus obtain not zestful outer shape.Can also make the parts of constituting word code-disc also be the film stratiform.

(6) the present invention is specially adapted to use the wrist-watch of solar cell, but also is applicable to machines such as the desk clock that uses solar cell and desk top computer.

As mentioned above, the present invention is that the light incident side at solar cell disposes as substrate lettered dial, that form the printing opacity metallic film, so can alleviate the restriction of solar cell to surface color and polish, can obtain the good metal sense simultaneously, show excellent beautiful outline form perception.And can be easy to make, so can also enhance productivity with the film treatment technology.

Claims (6)

1. lettered dial that the sun power clock and watch are used is characterized in that having:

The substrate that constitutes by film;

Be formed on this substrate the solar cell side the surface, make a part of incident light can be transmitted through the metallic film of solar cell side.

2. lettered dial that sun power clock and watch as claimed in claim 1 are used is characterized in that carrying out concavo-convex processing on the surface of the component side of keeping out the wind of aforesaid base plate.

3. the lettered dial that sun power clock and watch as claimed in claim 1 or 2 are used is characterized in that also being formed with the protective film that protection aforementioned metal film is used.

4. lettered dial of using as the described sun power clock and watch of any one claim in the claim 1,2 or 3 is characterized in that also being formed with and makes the aforementioned metal film with respect to the combination film of aforesaid base plate in conjunction with usefulness.

5. lettered dial of using as the described sun power clock and watch of any one claim in the claim 1,2,3 or 4 is characterized in that constituting the electrode that film dual-purpose that aforementioned lettered dial uses is done the light incident side of solar cell.

6. sun power clock and watch is characterized in that having the lettered dial of using as the described sun power clock and watch of any one claim in the claim 1,2,3,4 or 5, and with solar cell as drive source.

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