JPH11101901A - lens - Google Patents

Abstract

(57) [Problem] To provide a lens with a functional member of any one of a coloring member, an antibacterial member, a photocatalyst, and a phosphorescent member or a combination thereof. SOLUTION: A structure in which a vehicle 114 having a first functional member 112 and a second functional member 113 is applied to an outer surface (front surface) of a lens 111.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens, and more particularly to a lens provided with any one or a combination of functional members such as a coloring member, an antibacterial member, a luminous member, a photocatalyst, and an antireflection film.

[0002]

2. Description of the Related Art Plastic lenses as well as glass lenses are frequently used for in-vehicle lenses, optical lenses and spectacle lenses constituting a projection type television receiver. For example, Japanese Unexamined Patent Publication No. Hei.
No. 1 (FIG. 9) and JP-A-7-89448 (FIG. 1).
1) and the like are disclosed in JP-A-7-28239 as a lens for a traffic light.
No. 1 (FIG. 12) has been proposed.

Further, a configuration has been proposed in which the lens is a color lens or a photocatalyst is provided on the surface.

The above conventional lens is sterilized by a photocatalyst,
It has the function of decomposing contaminants such as sweat, oily smoke and cigarette smoke, and adjusting the absorption wavelength by mixing a coloring member into the lens member.

[0005]

However, a lens having luminous (afterglow) or antibacterial properties on the surface or inside of the lens member has not been proposed. Further, a lens provided with both an antibacterial member having a bactericidal action and a light storage member, a lens provided with both a light storage member and a photocatalyst, and a lens provided with a coloring member and a photocatalyst on the same surface side have been proposed. Absent.

According to the present invention, a functional member comprising a coloring member (dye / pigment), a fluorescent dye / pigment, a photocatalyst, a phosphorescent member, an antibacterial member, or a combination thereof is provided on or in the lens. It is intended to provide a lens.

[0007] By providing these functional members,
The lens can improve anti-fog, anti-mold, luminous, and brightness.

[0008]

In order to solve the above-mentioned problems, the lens according to the present invention has the following features. (1) At least two types of functional members are provided on the surface of the lens.

(2) At least two or more types of functional members are mixed in the lens.

(3) The first functional member is provided on the surface of the lens, and the second functional member is mixed inside the lens, so that at least two or more types of functional members are provided. .

(4) An antibacterial member is provided on the lens surface. (5) A structure in which a light storage member is provided on the lens surface.

(6) An antibacterial member is mixed in the lens. (7) The light storage member is mixed in the lens.

(8) A light storage member is provided on the surface of the lens, and an anti-reflection film is further provided thereon.

(9) A structure in which a coloring member is provided on the surface of the lens, and an anti-reflection film is further provided thereon.

(10) A structure in which a light-transmitting film sheet obtained by kneading a functional member is laminated on the surface of the lens.

First, a functional member is disposed on the surface of the lens.
As means for (1), a transparent adhesive member (vehicle / dispersion medium /
The carrier was kneaded with a functional member and applied.

The second means is such that an adhesive layer is first provided on the surface of the lens, and then a functional member is sprayed. Further, the functional member is pressed and embedded in the adhesive layer as needed. The third means has a configuration in which a film sheet including a functional member is laminated (laminated) on a lens.

Incidentally, sputtering, vapor deposition, CVD, PVD,
It goes without saying that any means such as electrodeposition and immersion may be used.

In the above-described structure of the present invention, the functional member is a colored member (dye or pigment), a fluorescent dye, a fluorescent pigment, an antibacterial member, a light storage member, a photocatalyst, or the like. The combination includes a phosphorescent member and a photocatalyst, a phosphorescent member and an antibacterial member, a photocatalyst and an antibacterial member, a photocatalyst and a coloring member, an antibacterial member and a coloring member,
Fluorescent dye / pigment and photocatalyst, fluorescent dye / pigment and antibacterial member, etc. Of course, any other combination is possible.

As the dyes, azo dyes, anthraquinone dyes, carbonium dyes, indigoid dyes, sulfur dyes,
A phthalocyanine dye or the like was used. For example, as the blue dye, cyanine blue (A13511, manufactured by Dexter, Hysole Blue dye) or the like may be used. Needless to say, other colors such as red, green, and yellow may be set according to the purpose. The fluorescent dye may be of any color and material, and may be, for example, a blue-green fluorescent dye (manufactured by BASF Corporation). The same applies to the case where the pigment may be of any color and member such as red, blue, green, yellow, and white.

The wavelength range of light absorption due to coloring may be arbitrarily set. For example, green has a high absorption in a wavelength range of about 520 nm or less and about 570 nm or more, and red has a high absorption in a wavelength range of about 600 nm or less and about 630 nm or more.
In the case of blue, a high absorption rate of about 420 nm or less and about 500 nm or more was determined.

The form of the antibacterial member provided on the exterior member is any one of a powder particle form and a liquid form.

The outer size of the antibacterial member in the form of powder particles is about 0.05 μm to about 20 μm. The amount added was about 0.5% to 10% by weight. By disposing an antibacterial member on the lens surface,
Eliminates the living environment of bacteria attached to the lens.

The antibacterial member was composed of any one of zeolite (antibacterial metal ion / silver, copper, zinc), chitosan, mugwort, hinoki (hinokitiol), and hiba. Zeolites are antibacterial ceramics that contain germicidal substances such as silver, copper, and zinc.

Chitosan is a natural polysaccharide that is often contained in crab shells and shrimp shells and has antibacterial and antifungal properties. The ratio of the powder particles embedded in the card surface, mixed in the adhesive, or mixed in the solution or water is sufficient in the ratio of about 0.3% to about several% by weight. did.

The mugwort has a tannin contained in the mugwort, which has an antiallergic and antipruritic effect, and chlorophyll (chlorophyll) has a sterilizing and bacteriostatic effect. It may be embedded or applied as a microcapsule of about 20 μm and fixed to the surface of the object.

The hinoki cypress plays a role of a preservative for preventing tropilone contained in the hinoki from adhering to bacteria, mold and the like, and may be used as microcapsules having a particle size of several micrometers as in other antibacterial members.

As the liquid antibacterial member, hinoki or hiba essential oil (meaning oil) or metronidazole, or silver acetate or silver nitrate is dissolved in pure water, and K ↓ 2SO ↓ 3 and K ↓ 2S ↓ are added to the solution. 2O ↓ 3 is sequentially added to obtain a solution containing at least one of a silver thiosulfato complex salt and a silver salt.

An antibacterial complex in which at least one of a silver thiosulfato complex salt or a silver salt is supported and adsorbed on hydrated amorphous silicon dioxide, and an outer shell coating layer is further formed on its outer surface, or an organic arsenic compound Vinazine and the like may be mixed at a weight ratio of about 0.5% to about 10%.

In addition to the above, as an antibacterial member, iodoform, silver silica gel antibacterial agent particles, diphenyl ether type or silicon quaternary ammonium salt (trade name AC)
P-20, TK-520), a mixture of zirconium phosphate and silver oxide, a compound in which isothiocyanate is used as an antibacterial component and is included in cyclodextrin, or the like.

Any member may be used as the photocatalyst.
For example, fine powder particles of a photocatalyst made of titanium dioxide or a mixture of titanium dioxide and activated carbon were used.

By disposing the photocatalyst powder particles or the thin film of the adhesive containing the photocatalyst on the surface of the object, the surface can be prevented from being stained, bacteria on the surface can be killed, and the smell attached thereto can be removed. In other words, a photocatalyst such as the sun or a fluorescent lamp that receives near-ultraviolet light of 300 nm to 400 nm is activated and oxidizes and decomposes organic substances (acetaldehyde, ammonia, etc.), nitrogen oxides, chlorine compounds, and the like.

The fine powder particles of the photocatalyst comprising titanium dioxide or a mixture of titanium dioxide and activated carbon are 0.001.
It has an outer shape of μm to several μm. Further, the proportion contained in the vehicle may be about 0.1 to 10% by weight.

The coating thickness may be arbitrarily determined according to the purpose of use. For example, it may be applied to a thickness of 0.1 μm to several μm.

The means for coating the mold lens and the cap is mixed with a vehicle, and is performed by spraying, electrostatic printing, ink jet, or the like.

As means for disposing titanium dioxide on the surface, any other means such as vacuum deposition, CVD, sputtering, spraying, dipping, welding, etc. may be used.

The titanium dioxide is preferably an anatase type, but may be a rutile type titanium dioxide metallized with copper, silver, platinum or other metals.

WO ↓ 2, Cds, SrTiO ↓
2, a photocatalyst may be formed of a semiconductor such as MoS ↓ 2.

As the phosphorescent substance, for example,
N night light or SrAl ↓ 2O ↓ 4: Eu (emission peak wavelength 520 nm, afterglow luminance 300 mcd / m ↑ 2 (20
20 minutes after irradiation with 0 LX for 4 minutes), afterglow time 20
00 minutes or more (time required to decay to 0.32 mcd / m ↑ 2)) or ZNs: Cu, or ZnS, C
Any member such as one or two kinds of sulfide phosphorescent materials such as dS, CaS, and (ZnCd) S may be used.

The coating thickness of the adhesive member (vehicle) containing the luminous substance was at least about 0.1 μm to 10 μm. The compounding ratio of the luminous substance to be mixed in the adhesive member is 0.1% by weight to 10%.
% By weight.

Examples of the adhesive member (vehicle) containing the functional member include a thermosetting acrylic resin member (for example, acrylic melamine resin), an alkyd melamine resin member, vinyl acetate, a fluororesin, a silicone resin, and the like.
An organic binder such as an epoxy resin type, a urethane type, or a UV resin (ultraviolet curable resin), a rubber member (eg, natural rubber, butyl rubber, etc.), a vinyl chloride, a phenol resin, or any other member. The constituent material of the cap is, for example, acrylic resin, epoxy resin, polycarbonate, vinyl chloride, vinylidene chloride,
Styrol, polyacetal, urethane, glass (for example, silica glass, borosilicate glass, soda-lime glass) and the like were used.

According to the present invention, functional members such as a coloring member, a photocatalyst, an antibacterial member, and a luminous substance can be provided by the above-described structure.
At least two or more types can be easily arranged on the lens surface. The coloring member adjusts the light absorption wavelength range, the antibacterial member prevents the growth of mold and bacteria, and the photocatalyst decomposes pollutants attached to the air or on the surface. In addition, phosphorescent substances (called phosphorescent phosphors, phosphorescent paints, fluorescent paints, etc.) absorb and accumulate the light of sunlight and fluorescent lamps, and can maintain brightness for a certain period of time even when the lighting is interrupted and dark, To facilitate the operation of electronic devices and the like.

[0043]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first aspect of the present invention is a lens characterized in that a second functional member is provided on a surface of a lens so as to overlap a first functional member. At least two or more functional members such as a coloring member, a photocatalyst, an antibacterial member, a luminous substance, and an antireflection film can be easily disposed on the surface of the lens. Further, the combination of the functional members can be arbitrarily selected. Furthermore, mass production is enabled by a coating method or the like.

Further, in the second invention, the surface of the lens
A lens provided with a vehicle in which a first functional member and a second functional member are mixed. The lens has functions such as a coloring member, a photocatalyst, an antibacterial member, a phosphorescent substance, and an antireflection film. At least two types of members can be easily arranged on the lens surface. In addition, the time required for application is reduced to half of that of the first invention.

Further, a third invention is a lens characterized in that either a fluorescent dye or a fluorescent pigment is mixed in the lens and a photocatalyst is provided on the surface of the lens. The dye / fluorescent pigment adjusts the light absorption wavelength range, and the photocatalyst decomposes contaminants adhering to the surface to prevent mold and fog.

Further, a fourth invention is a lens characterized in that either one of a fluorescent dye or a fluorescent pigment is mixed in the lens and an antibacterial member is provided on the surface of the lens. The fluorescent dye / fluorescent pigment adjusts the light absorption wavelength range, and the antibacterial member prevents the growth of mold and bacteria.

Further, the fifth invention is a lens characterized in that a light storage member is mixed in the lens and a photocatalyst is provided on the surface of the lens. Even for a certain period of time, it can maintain brightness and illuminate the surroundings. The photocatalyst decomposes contaminants attached to the surface.

Further, the sixth invention is a lens characterized in that a light storing member is mixed in the lens and an antibacterial member is provided on the surface of the lens. Even for a certain time, the brightness can be maintained and the surrounding area can be illuminated. The antimicrobial member prevents the growth of mold and bacteria.

Further, a seventh invention is a lens characterized in that a coloring member is mixed in the lens and an antibacterial member is provided on the surface of the lens, wherein the coloring member has a light absorption wavelength range. The antibacterial member prevents the growth of mold and bacteria.

Further, the eighth invention is a lens characterized in that at least two or more kinds of functional members are mixed in the lens, and two kinds of functional members are provided in the lens during the molding process. Suitable for mass production.

Further, a ninth invention is a lens characterized in that an antibacterial member is provided on the surface of the lens.
The antibacterial member performs antifungal and antifogging by a bactericidal action.

Further, a tenth aspect of the present invention is a lens characterized in that a light storing member is provided on the surface of the lens, and the light storing substance can maintain the brightness for a certain period of time even if the illumination is interrupted and becomes dark. Light up the surroundings. In addition, it emits light by itself.

Further, an eleventh invention is a lens characterized in that an antimicrobial member is mixed in the lens.
The antibacterial member performs antifungal and antifogging by a bactericidal action.

Further, the twelfth invention is a lens characterized in that a light storage member is mixed in the lens.
The luminous substance can maintain the brightness for a certain period of time even when the illumination is interrupted and becomes dark, and illuminates the surrounding area. In addition, it emits light by itself.

Further, a thirteenth aspect of the present invention is a lens characterized in that the lens is provided with a vehicle in which a coloring member is kneaded on the surface of the lens. Can be achieved.

Further, a fourteenth aspect of the present invention is a lens characterized in that a light storage member is provided on the surface of the lens and an anti-reflection film is further provided on the lens. The anti-reflection film improves visibility.

Further, a fifteenth invention is a lens characterized in that a light-transmitting film sheet obtained by kneading a functional member is laminated on the surface of the lens, and the amount of the functional member used is reduced. The brightness and the like can be adjusted according to the thickness of the sheet.

Hereinafter, a lens according to an embodiment of the present invention will be described with reference to FIGS.

(Embodiment 1) FIG. 1 is a sectional view showing a main part near a lens surface according to Embodiment 1 of the present invention. FIG.
1, reference numeral 101 denotes a lens substrate, 102 denotes a first functional member, and 103 denotes a second functional member.

As shown in FIG. 1, a lens 100 has a first functional member 1 on an outer surface (front surface) of a lens substrate 101.
02, and then a second functional member 103 is provided so as to overlap the first functional member 102.

By arbitrarily selecting a combination of the first functional member 102 and the second functional member 103, a coloring member (dye, pigment), a fluorescent dye, a fluorescent pigment, a photocatalyst, an antibacterial member, a luminous substance At least two or more types of functional members can be easily disposed on the surface of the lens substrate.

Further, the brightness and the color can be adjusted depending on the amount of each functional member mixed as well as the coating thickness of each functional member, and mass production can be easily performed.

Each of the functional members is mixed and kneaded in a vehicle, for example, a transparent acrylic resin, an epoxy resin, or a resin member such as vinyl chloride in a range of several weight% to 10 weight%. The coating thickness of each layer was in the range of 0.01 μm to several μm.

The application means was any one of spray, electrostatic printing, ink jet, immersion, screen printing and the like. Of course, any other means may be used.

It should be noted that the means for disposing the functional members is not necessarily limited to the use of a resin-based vehicle. The dispersion medium may be a solvent such as water or alcohol. Further, as a means for disposing the functional member, in addition to kneading and applying to the vehicle, a configuration may be adopted in which an adhesive layer is first disposed on the surface of the lens substrate, and then the functional member is dispersed. . Then, if necessary, the functional member is pressed and embedded in the adhesive layer.

Further, vapor deposition, sputtering, CVD, PV
D, welding or the like may be used.

Further, it goes without saying that the coating thickness of the functional member may be different for each functional member. Any size may be set according to the purpose.

By providing a functional member on the surface of the lens, the coloring member (dye, pigment) and the fluorescent dye / fluorescent pigment can adjust the light absorption wavelength range to improve the luminance.

The light storage member illuminates the surroundings for a certain period of time even in a dark place. The antibacterial member prevents the growth of mold and bacteria, and the photocatalyst oxidizes and decomposes organic substances, nitrogen oxides, chlorine compounds, and the like. As a result, the lens anti-fog, anti-mold, improved visibility,
Realize brightness improvement.

(Embodiment 2) FIG. 2 is a sectional view showing a main part near a lens surface according to Embodiment 2 of the present invention. FIG.
, Reference numeral 111 denotes a lens substrate, 112 denotes a first functional member, and 113 denotes a second functional member.

As shown in FIG. 2, a lens 110 includes a first functional member 112 and a second functional member 113 on a surface (surface) of a lens substrate 111 in a vehicle made of a transparent resin or the like. The mixture is applied to a predetermined thickness.

By arbitrarily selecting a combination of the first functional member 112 and the second functional member 113, a coloring member (dye, pigment), a fluorescent dye, a fluorescent pigment, a photocatalyst, an antibacterial member, a luminous substance And at least two or more functional members can be easily disposed on the lens surface.

Further, the brightness and the color can be adjusted by adjusting the thickness of the coating of each functional member together with the mixing amount of each functional member, and mass production can be easily performed.

Each functional member is mixed and kneaded in a vehicle, for example, a transparent acrylic resin, epoxy resin, vinyl chloride or the like in a range of several weight% to 10 weight%. The coating thickness was in the range of 0.01 μm to several μm.

The application means, the dispersion medium, the type of the functional member, and the means for disposing the functional member may be implemented in the same manner as in the first embodiment. Also in the case of the second embodiment, the first embodiment
It has the same operation and effect as.

(Embodiment 3) FIG. 3 is a cross-sectional view of a main part near a lens surface according to Embodiment 3 of the present invention. FIG.
Reference numeral 121 denotes a lens substrate, 122 denotes a first functional member, and 123 denotes a second functional member.

As shown in FIG. 3, a lens 120 has a first functional member 122 kneaded inside a lens substrate 121 and an outer surface (surface) of the lens substrate 121.
The second functional member 12 is placed in a vehicle made of a transparent resin or the like.
3 is provided with a member having a predetermined film thickness.

By arbitrarily selecting a combination of the first functional member 122 and the second functional member 123, a coloring member (dye, pigment), a fluorescent dye, a fluorescent pigment, a photocatalyst, an antibacterial member, a luminous substance At least two or more types of functional members can be easily provided on the lens.

In addition, the brightness and color can be adjusted by adjusting the coating thickness of the second functional member together with the amount of each functional member mixed, and mass production can be easily performed.

The amount of the first functional member 122 to be mixed into the lens substrate 121 is in the range of several weight% to 10 weight%.

The second functional member is mixed with a vehicle, for example, a transparent acrylic resin, epoxy resin, vinyl chloride, or another resin member in a range of several weight% to 10 weight%.
Knead it. The coating thickness was in the range of 0.01 μm to several μm.

The application means for the second functional member, the dispersion medium, the type of the functional member, and the means for disposing the functional member may be implemented in the same manner as in the first embodiment.

The third embodiment has the same operation and effect as the first embodiment. (Embodiment 4) FIG. 4 is a sectional view showing a main part near the lens surface according to Embodiment 4 of the present invention. In FIG. 4, reference numeral 131 denotes a lens substrate, 132 denotes a first functional member, 1
Reference numeral 33 denotes a second functional member.

As shown in FIG. 4, the lens 130 is characterized in that a first functional member 132 and a second functional member 133 are kneaded and dispersed in a lens base 131.

By arbitrarily selecting the combination of the first functional member 132 and the second functional member 133, a coloring member (dye, pigment), a fluorescent dye, a fluorescent pigment, a photocatalyst, an antibacterial member, a luminous substance At least two or more types of functional members can be easily provided on the lens.

Further, it is possible to adjust the brightness and the color by adjusting the mixing amount of each functional member, thereby exhibiting more excellent mass productivity.

The mixing amount of each functional member is several weight%.
It is mixed and kneaded in the range of 10 to 10% by weight.

The fourth embodiment has the same operation and effect as the first embodiment. (Embodiment 5) FIG. 5 is a cross-sectional view of a main part near a lens surface according to Embodiment 5 of the present invention. In FIG. 5, reference numeral 141 denotes a lens substrate, and 142 denotes a light storage member. As shown in FIG. 5, the lens 140 is characterized in that a member formed by kneading a light storage member 142 in a vehicle made of a transparent resin or the like is provided on the outer surface (front surface) of the lens substrate 141 to a predetermined thickness. I do.

The emission luminance can be adjusted not only by the mixing amount of the light storage member but also by the coating thickness of the vehicle.

The light storage member 142 is mixed and kneaded in a vehicle such as a transparent acrylic resin, epoxy resin, vinyl chloride or the like in a range of several weight% to 10 weight%, respectively. The coating thickness was in the range of 0.01 μm to several μm.

The application means and the dispersion medium of the light storage member 142 may be implemented in the same manner as in the first embodiment. The luminous substance can maintain the brightness for a certain period of time even when the illumination is interrupted and becomes dark, and illuminates the surrounding area. In addition, it emits light by itself.

FIG. 6 shows an embodiment in which an antibacterial member 152 or a coloring member (dye or pigment) is provided instead of the light storing member in FIG. The antibacterial member can prevent mold and antifogging of the lens by a bactericidal action. The coloring member can adjust the light absorption wavelength range and can improve the visibility and the luminance.

It is to be noted that the coloring member may be provided on the lens surface by means of sputtering, dipping, vapor deposition, CVD, PVD or the like, instead of being coated in the vehicle and disposed on the surface of the lens substrate. Needless to say.

(Embodiment 6) FIG. 7 is a cross-sectional view of a main part near a lens surface according to Embodiment 6 of the present invention. FIG.
In the figure, reference numeral 161 denotes a lens substrate, and 162 denotes a light storage member. As shown in FIG. 7, the lens 160 is characterized in that the light storage member 162 is kneaded and dispersed inside the lens base material 161.

The brightness adjustment and color adjustment at the time of self-emission can be performed by the mixing amount of the light storage member 162, and mass production can be easily performed.
The mixing amount is in the range of several wt% to 10 wt%, respectively.
Knead it.

The luminous substance can maintain the brightness for a certain period of time even when the illumination is interrupted and becomes dark, and illuminates the periphery. In addition, self-emission is performed to display characters and figures described on the lens surface.

FIG. 8 shows an embodiment in which an antibacterial member 172 is provided instead of the light storage member in FIG. The antibacterial member can prevent mold and antifogging of the lens by a bactericidal action.

(Embodiment 7) The lens according to Embodiment 7 has a configuration in which a light-transmitting film sheet including one or more functional members is laminated (laminated) on the lens surface.

The so-called in-mold molding technique is used. The translucent film sheet is previously arranged in a cavity formed by two split molds, and a translucent resin is injected and molded so that the translucent film sheet forms a skin.

The functional members kneaded into the translucent film sheet include coloring members, phosphorescent members, antibacterial members, photocatalysts,
Any one of a fluorescent dye, a fluorescent pigment, and the like, or a combination thereof.

The thickness dimension of the light-transmitting film sheet was in the range of about several μm to 100 μm. In this case, the amount of the functional member used can be reduced, and the luminance can be adjusted according to the thickness of the sheet. In addition, various film sheets can be prepared in a separate process in advance, thereby facilitating model switching in the injection molding process.

In each of the first to seventh embodiments,
It goes without saying that the functional member may be any member other than the above. For example, apply an anti-reflection film to the outermost layer,
Alternatively, sputtering may be performed in multiple layers.

Further, the type of the vehicle lens may be arbitrary, and is not limited to a front lens, a projection lens, a headlight, a taillight, a direction indicator, and the like.

[0104]

As described above, according to the present invention, any one of a coloring member, a fluorescent dye, a fluorescent pigment, a phosphorescent member, a photocatalyst, and an antibacterial member, or a functional member of a combination thereof can be easily formed into a lens. Arranged on or inside the lens.

The antibacterial member prevents the growth of mold and bacteria, and the photocatalyst decomposes contaminants (oil smoke, cigarette tar, etc.) attached to the lens surface. This makes it possible to prevent the lens from mold and fogging.

The luminous substance remains for a certain period of time even after the illumination is turned off.
It self-luminesces and illuminates the surroundings, self-luminesces, and displays characters and graphics placed on the lens surface. In addition, lenses for vehicles, traffic lights, and signs emit light for a certain period of time even after the power is turned off, revealing their existence.

The coloring member, the fluorescent dye, and the fluorescent pigment can select a light absorption wavelength range, thereby improving the visibility and the luminance.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part near a lens surface according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part near a lens surface according to a second embodiment of the present invention;

FIG. 3 is a sectional view of a main part near a lens surface according to a third embodiment of the present invention.

FIG. 4 is a cross-sectional view of a main part near a lens surface according to a fourth embodiment of the present invention.

FIG. 5 is a cross-sectional view of a main part near a lens surface according to a fifth embodiment of the present invention.

FIG. 6 is a cross-sectional view of a main part near the surface of another lens according to a fifth embodiment of the present invention.

FIG. 7 is a cross-sectional view of a main part near a lens surface according to a sixth embodiment of the present invention.

FIG. 8 is a cross-sectional view of a main part near the surface of another lens according to Embodiment 6 of the present invention.

FIG. 9 is an external perspective view of a main part of a conventional vehicle lamp lens.

FIG. 10 is a sectional view of a main part of FIG. 1;

FIG. 11 is a sectional view of a main part of a conventional vehicle lighting device.

FIG. 12 is a sectional view of a main part of a conventional traffic signal.

[Explanation of symbols]

100, 110, 120, 130, 140, 150, 1
60,170 lens 101,111,121,131,141,151,1
61, 171 Lens base material 102, 112, 122, 132 First functional member 103, 113, 123, 133 Second functional member 142, 162 Luminescent member 152, 172 Antibacterial member

Claims (39)

[Claims] 1. A lens comprising at least two types of functional members selected from the group consisting of a dye, a pigment, a phosphorescent member, an antibacterial member, a photocatalyst, and an antireflection film. 2. The lens according to claim 1, wherein one of the antireflection film and the photocatalyst is disposed on the outermost layer. 3. A lens comprising a coloring member and a photocatalyst on the surface. 4. The lens according to claim 3, further comprising a photocatalyst superposed on the coloring member. 5. The lens according to claim 3, further comprising a vehicle in which a coloring member and a photocatalyst are mixed. 6. The lens according to claim 5, wherein the coloring member is any one of a dye or a pigment or a combination thereof. 7. The lens according to claim 3, wherein the lens is any one of an on-vehicle, a traffic light, an eyeglass, and an optical lens.
The lens according to any one of claims 1 to 6. 8. A lens comprising a coloring member and an antibacterial member on the surface. 9. The lens according to claim 8, further comprising an antibacterial member superimposed on the coloring member. 10. The lens according to claim 8, further comprising a vehicle in which a coloring member and an antibacterial member are mixed. 11. A lens comprising a light storage member and a photocatalyst on the surface. 12. The lens according to claim 11, further comprising a photocatalyst superposed on the light storage member. 13. The lens according to claim 11, further comprising a vehicle in which a light storage member and a photocatalyst are mixed. 14. A lens comprising a phosphorescent member and an antibacterial member on the surface. 15. The lens according to claim 14, wherein an antimicrobial member is provided so as to overlap with the light storage member. 16. The lens according to claim 14, further comprising a vehicle in which a light storage member and an antibacterial member are mixed. 17. A lens comprising a surface provided with either a fluorescent dye or a fluorescent pigment and a photocatalyst. 18. The lens according to claim 17, wherein a photocatalyst is provided so as to overlap one of the fluorescent dye and the fluorescent pigment. 19. The lens according to claim 17, further comprising a vehicle in which one of a fluorescent dye or a fluorescent pigment and a photocatalyst are mixed. 20. A lens comprising a surface provided with either a fluorescent dye or a fluorescent pigment and an antibacterial member. 21. The lens according to claim 20, further comprising an antibacterial member superposed on one of the fluorescent dye and the fluorescent pigment. 22. The lens according to claim 20, further comprising a vehicle in which one of a fluorescent dye or a fluorescent pigment and an antibacterial member are mixed. 23. A lens, wherein one of a fluorescent dye and a fluorescent pigment is mixed into a lens member, and a photocatalyst is provided on a surface of the lens member. 24. A lens characterized in that one of a fluorescent dye and a fluorescent pigment is mixed into a lens member, and an antibacterial member is provided on the surface of the lens member. 25. A lens comprising: a light storage member mixed in a lens member; and a photocatalyst provided on a surface of the lens member. 26. A lens comprising: a light storage member mixed into a lens member; and an antibacterial member provided on a surface of the lens member. 27. A lens, wherein a coloring member is mixed in the lens member, and an antibacterial member is provided on the surface of the lens member. 28. A lens, wherein at least two or more types of functional members are mixed in the lens member. 29. A lens wherein a coloring member and a photocatalyst are mixed in a lens member. 30. A lens characterized in that a coloring member and an antibacterial member are mixed in the lens member. 31. The lens according to claim 29, wherein the coloring member is one of a dye or a pigment or a combination thereof. 32. A lens characterized in that a light storage member and a photocatalyst are mixed in a lens member. 33. A lens characterized in that a light storing member and an antibacterial member are mixed in a lens member. 34. A lens characterized in that a fluorescent dye and a photocatalyst are mixed in a lens member. 35. A lens wherein a fluorescent dye and an antibacterial member are mixed in the lens member. 36. A lens comprising a light storage member on a surface of the lens. 37. A lens characterized in that a light storing member is mixed in a lens member. 38. A light storage member is provided on the surface of the lens member,
A lens further comprising an anti-reflection film. 39. A translucent film sheet in which one or a combination of a coloring member, a phosphorescent member, an antibacterial member, a photocatalyst, a fluorescent dye and a fluorescent pigment is kneaded on the surface of the lens member. A lens characterized by the following.