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WO2003043845A1 - Pare-soleil pour vehicule - Google Patents

Pare-soleil pour vehicule Download PDF

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Publication number
WO2003043845A1
WO2003043845A1 PCT/JP2002/012030 JP0212030W WO03043845A1 WO 2003043845 A1 WO2003043845 A1 WO 2003043845A1 JP 0212030 W JP0212030 W JP 0212030W WO 03043845 A1 WO03043845 A1 WO 03043845A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
control member
transmittance
light control
film
Prior art date
Application number
PCT/JP2002/012030
Other languages
English (en)
Japanese (ja)
Inventor
Hiroto Ogawa
Izuru Sugiura
Keizo Ikai
Yoshinori Nishikitani
Original Assignee
Kyowa Sangyo Co., Ltd.
Nippon Oil Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyowa Sangyo Co., Ltd., Nippon Oil Corporation filed Critical Kyowa Sangyo Co., Ltd.
Publication of WO2003043845A1 publication Critical patent/WO2003043845A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency

Definitions

  • the present invention relates to a vehicle sun visor that blocks light into a vehicle compartment.
  • the vehicle sun visor is configured with a plate-like visor body, and conventionally, this visor body has a configuration that does not transmit light.
  • the visor body is configured not to pass light completely, the vision of the occupant may be obstructed by the visor body, which may interfere with viewing signals and the like.
  • the present invention has an object to provide a vehicle sun visor capable of appropriately visualizing a signal or the like through a visor body.
  • the visor body is formed to have a light control member capable of adjusting the light transmittance into the vehicle compartment.
  • the light control member can adjust the transmittance of light into the vehicle compartment, thereby adjusting the amount of light incident into the vehicle compartment through the visor body.
  • the light control member can be adjusted to be in a visible state. That is, the light control member has visibility by increasing the light transmittance, whereby the passenger can look out of the vehicle compartment from the vehicle interior through the visor body.
  • the visor main body can appropriately adjust the light transmittance and the visibility, thereby securing the visibility of the occupant and making the signal etc. easy to see.
  • the light control member may be anything as long as it can adjust the light transmittance (transmittance). For example, it can adjust the light absorptivity, reflectance, or scattering direction. It is a thing etc.
  • One example is the use of technologies such as liquid crystal, electrochromic, or thermochromic.
  • a second invention is the vehicle sun visor according to the first invention, wherein the light control member includes two light transmitting conductive substrates, and an encapsulating material sealed between the light transmitting conductive substrates. Is configured.
  • the encapsulating material has a characteristic that the transmittance of light changes by chemical or physical change by applying a voltage.
  • a scattering prevention film is attached to the translucent conductive substrate to prevent scattering of the translucent conductive substrate when the translucent conductive substrate is broken.
  • the light control member is provided with a translucent conductive substrate and a sealing material, and the light transmittance can be adjusted by applying a voltage to the sealing material.
  • the encapsulating substance is an electrochromic substance, an electrolyte and the like.
  • the electrochromic substance in the aperture opening changes electrochemically (color change due to reversible oxidation-reduction reaction), thereby changing the light transmittance of the inclusion substance.
  • the form of the electrochromic substance and the electrolyte may be a single layer in which the electrochromic compound is mixed in the electrolyte, a layer made of the electrolyte and a layer made of the electrochromic compound, or It may be in any form such as a combination of these.
  • the electrolyte layer may be in any state of liquid, gel, or solid, and the electrochromic compound may be added to the liquid electrolyte layer, the gelled electrolyte layer, and the solid electrolyte layer, respectively. It may be mixed and manufactured.
  • the liquid electrolyte layer usually contains a supporting electrolyte such as salts, acids and alkalis.
  • a supporting electrolyte such as salts, acids and alkalis.
  • the supporting electrolyte include inorganic ion salts of alkali metal salts and alkaline earth metal salts, ammonium salts and the like.
  • a gelled liquid electrolyte one obtained by thickening and gelling the above liquid electrolyte Generally, it is prepared by blending a liquid electrolyte with a polymer or a gelling agent.
  • solid electrolyte those which are solid at room temperature and have ion conductivity can be used, and polyethylene oxide, oxyethylene methacrylate, nafion, polythylene sulfonic acid, Li 3 N, Na-j3- There are A 1 2 0 3 , S n (HP 0 4 ) 2 ⁇ ⁇ 2 0 and so on.
  • a supporting electrolyte can be included in the polymer compound obtained by polymerizing various methacrylate compounds, acrylate type compounds and urethane acrylate compounds (in some cases, it can be used as a liquid electrolyte) It is also possible to use high molecular solid electrolytes further containing various solvents.
  • the electrochromic substance may, for example, be an anodic electrochromic compound, a force sort electrophilic electrochromic compound, or a compound having the structure of both compounds.
  • wo 3 , M o 2 O 3 , I r o 3 , T i 0 2 , V 2 O 5 , polithiophen, polyanilin, polypyrrole, metal phthalocyanine, and an electrochromic compound are electrochemical The absorption spectrum is increased by the oxidation reaction, and the pyrazoline compound derivative, the meridene compound derivative, the phenydazine compound derivative, the fuenazine compound derivative, the phenoxazine compound derivative, the phenothiazine compound derivative, tetrathiafulvalene
  • styryl compound derivatives pyrrologen compound derivatives, anthraquinone compound derivatives and the like.
  • liquid crystal technology is used as a light control member, but in this case, the enclosed substance is liquid crystal.
  • the liquid crystal changes its alignment (alignment). That is, the liquid crystal undergoes a physical change, which changes the light transmittance of the enclosed material.
  • a light transmitting conductive film can be mentioned on the surface of a light transmitting plate glass or a light transmitting resin (such as an organic glass) (hereinafter, collectively referred to as “sheet glass”).
  • the light transmitting conductive film include metal thin films such as gold, silver, chromium, copper, tungsten, tin oxide, zinc oxide, And vanadium oxide, Indium Tin Oxide doped with minor components of these (I TO (I n 2 O 3: S n)) is mentioned as the preferable like.
  • the surface resistance (resistivity) of the light-transmissive conductive substrate is usually about 0.5 to 500 QZ SQ, preferably about 2 to 50 ⁇ / s Q.
  • an anti-scattering film is attached to the translucent conductive substrate. Therefore, when the light transmitting conductive substrate is broken, the light scattering conductive film is not scattered by the scattering prevention film, and the safety of the vehicle sun visor is improved.
  • the anti-scattering film may be attached to one of the two translucent conductive substrates, or may be attached to one of the two translucent conductive substrates.
  • a single film may be applied across both of the two light transmitting conductive substrates.
  • Invention 3 is the vehicle sun visor according to invention 2, wherein the shatterproof film is formed using a translucent film as a material.
  • the anti-scattering film is translucent, the transmittance of light into the vehicle compartment is reduced by the anti-scattering film. In other words, the amount of light incident on the cabin interior is reduced in advance by the anti-scattering film.
  • a light control member is provided in the visor body. Therefore, the visor body can further reduce the light transmittance into the vehicle compartment by adjusting the light control member.
  • the translucent film one having a visible light transmittance of 5 to 90%, preferably 10 to 70%, and more preferably 1 to 60% at 3800 nm to 7800 nm. desirable.
  • the measurement of the visible light transmittance is carried out by the test method specified in JIS-A-5749.
  • the scattering prevention film is configured to obtain the predetermined value, and the light control member is adjusted to adjust the transmittance smaller than the predetermined value.
  • the range of transmittance for adjustment by the adjustment member is narrowed, which facilitates adjustment of the adjustment member. That is, adjustment by the light control member
  • the amount can be small, for example, the response time required to adjust the light control member can be shortened, or the required applied voltage can be reduced.
  • the shatterproof film may be anything as long as it is translucent, and may be, for example, a mesh-like one or a translucent one having a color.
  • the adhesive strength of the film attached to the glass surface with an adhesive or an adhesive is 300 to 0.05 (NZ 25 mm width), preferably 300 to 1.0 It is desirable that it is N / 2 5 mm width), more preferably 300 to 2. 0 (NZ 2 5 mm width).
  • the adhesive strength is measured according to the test method specified in, for example, JIS-S- 3 0 7 or JIS-A- 5 7 5 9 (Affixing a 25 mm wide film to a glass surface 1 Measure the force required to peel off at 80 °).
  • the tensile strength of the film is 100 to 10 (NZ 25 mm width), preferably '100 to 50 (N / 2 5 mm width), more preferably 1 It is desirable that it is 0 00 to 1 0 0 (N / 2 5 mm width).
  • the tensile strength is measured by the test method specified in JIS-A-5749.
  • Invention 4 is the vehicle sun visor according to Invention 1, wherein the light control member comprises two light transmitting conductive substrates, and an encapsulating material to be sealed between the light transmitting conductive substrates. There is.
  • the encapsulating material is characterized by the fact that the light transmittance changes due to chemical or physical change upon application of a voltage.
  • the translucent conductive substrate is configured to have translucency.
  • the light control member comprises: a light transmitting conductive substrate and a sealing material.
  • a translucent conductive substrate has translucency. Therefore, the light transmittance into the vehicle compartment is reduced by the translucent conductive substrate. In other words, to the cabin The amount of incident light is reduced by the translucent conductive substrate in advance.
  • the encapsulated substance can adjust the light transmittance by applying a voltage. Therefore, the light transmittance can be further reduced by adjusting the light control member.
  • the light transmitting conductive substrate is configured to obtain the predetermined value, and by adjusting the light control member, the light adjustment member is adjusted more than the predetermined value. Small transmittance can be obtained. As a result, the range of transmittance for adjustment by the adjusting member is narrowed, which facilitates adjustment of the adjusting member.
  • the translucent conductive substrate may be anything as long as it has translucency, for example, it may be in the form of ground glass, or it may be translucent in color.
  • the translucent conductive substrate having a semitransparent property has a visible light transmittance of 2 to 85%, preferably 5 to 70%, and more preferably 1 to 60% at 3800 to 7800 nm. Is particularly desirable.
  • the measurement of the visible light transmittance is performed by the test method specified in JIS-A-5749.
  • FIG. 1 is a perspective view of a vehicle sun visor according to Embodiments 1 to 3 of the present invention.
  • FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 of the first or second embodiment.
  • FIG. 3 is a partial cross-sectional view taken along line A-A of FIG. 1 of the third embodiment.
  • FIG. 4 is a cross-sectional view of the fourth embodiment and is a view corresponding to a partial cross-sectional view taken along line AA of FIG.
  • the vehicle sun visor 1 mainly comprises a visor body 2 for blocking light into the vehicle compartment, and a support shaft 10 rotatably mounted on the visor body 2. There is.
  • the support shaft 10 is formed in a substantially L shape with a vertical axis and a horizontal axis, and the horizontal axis is rotatably attached to the visor body 2.
  • the vertical shaft is rotatably mounted on the ceiling of the passenger compartment via a mounting bracket 1 1.
  • the visor body 2 is pivoted about the horizontal axis of the support shaft 10, thereby pivoting between the storage position along the ceiling surface of the cabin and the light shielding position along the windshield. Do. Further, the visor body 2 is rotated about the vertical axis as an axis to rotate between the light shielding position along the windshield and the side position along the side glass.
  • the visor body 2 mainly includes a frame 3 forming the peripheral portion of the visor body 2 and a plate-like light control member 4 forming the central portion of the visor body 2.
  • the light control member 4 is disposed so as to close the portion opened by the frame 3.
  • the frame 3 is composed of a first divided body 3a and a second divided body 3b divided in the thickness direction as shown in FIG.
  • the first divided body 3a and the second divided body 3b are attached to each other to make the frame 3 into a substantially pipe shape.
  • an opening 31 is formed on the inner peripheral edge side of the frame 3 with the first divided body 3a and the second divided body 3b not in contact with each other. Therefore, the light control member 4 is attached to the frame 3 by being installed so as to hold the light control member 4 in the opening 31.
  • the light control member 4 when the light control member 4 is attached to the first divided body 3a and the second divided body 3b, the light control member 4 is attached so as to be sandwiched therebetween, and the peripheral portion of the light control member 4 is the opening of the frame .3. 3 will be distributed in one. Therefore, the entire periphery of the light control member 4 is attached to the frame 3, so that the light control member 4 is stably supported by the frame 3.
  • an extension 30 extending to the other side is formed. And these extension parts 30 mutually attach each other.
  • the peripheral edge of the light control member 4 is in contact with the side surfaces of the two extending portions 30 in the mounted state, whereby the movement of the light control member 4 is suppressed.
  • the extension portion 30 extends along the outer periphery of the frame 3 and, in a state where the two extension portions 30 are attached, these are formed across the thickness direction of the frame 3. Are reinforcing.
  • an opening is provided at one end of the frame 3 (for example, the upper right side shown in FIG. 1), an opening is provided in which the horizontal axis of the support shaft 10 is inserted, and the support shaft 10 is inserted from this opening.
  • a substantially cylindrical support shaft 12 is attached to the other end of the frame 3 (for example, the upper left side shown in FIG. 1).
  • the support shaft 12 is structured to be detachably locked to a hook attached to the roof of the cabin. Therefore, the support shaft 12 is engaged with the hook when the visor body 2 is pivoted between the position along the ceiling surface of the cabin and the position along the windshield. Make a dynamic axis and assist the rotation of the visor body 2.
  • the light control member 4 is thinner than the frame 3, and the light control member 4 is disposed substantially at the center of the thickness of the frame 3 and accommodated within the thickness of the frame 3.
  • the light control member 4 is capable of adjusting the light transmittance (light transmittance), and is configured to use, for example, electrochromic technology.
  • This electrochromic technology can change the absorptivity of light, and can adjust the transmissivity of light by adjusting the absorptivity of light.
  • the light control member 4 is mainly composed of two sheet glasses 4 1 and an electrolyte 40 sealed in the two sheet glasses 4 1.
  • the plate glass 41 is formed, for example, of a transparent tempered glass, and the electrolyte 40 is formed, for example, of a liquid electrolyte. And, as shown in FIG. 2, the other glass sheet 4 1 A transparent electrode 43 is provided on the opposite surface (surface opposite to the electrolyte 40). The transparent electrode 43 is formed to cover the entire surface of the plate glass 41, and is formed of ITO glass or the like.
  • a reduction coloring film 4 4 (an electric port chromic substance) is provided on the transparent electrode 43.
  • the electrolyte 40 is disposed between the two transparent electrodes 43 and disposed in a state in which one end side is in contact with the reduction coloring film 44.
  • the electrolyte 40 and the reduction coloring film 44 correspond to the inclusion substance of the present invention.
  • the glass sheet 41 provided with the transparent electrode 43 corresponds to the light-transmitting conductive substrate of the present invention.
  • a scattering prevention film 42 is provided on the other side surface (surface of the electrolyte 40 side and the opposite surface) of the glass sheet 41.
  • the light control member 4 and the shatterproof film 42 are, from the left side, a shatterproof film 42, a flat glass 41, a transparent electrode 43, an electrolyte 40, a reduction coloring film 44, a transparent electrode 43
  • the sheet glass 41 and the shatterproof film 42 are arranged in the order of lamination.
  • a sealing material 45 is attached to the peripheral portion of the light control member 4.
  • the seal material 45 is spread between two sheet glasses 41, and the electrolyte 40 and the reduction coloring film 44 are sealed by the seal material 45 and the two sheet glasses 4 1. Be done.
  • the electrolyte 40 and the reduced coloring film 44 are, for example, liquid electrolytes in which the electrolyte 40 contains lithium iodide (L i I), and the reduced coloring film 44 is an oxidized tan dustene (W 0 3 ).
  • the electrolyte system is a liquid electrolyte containing lithium perchlorate (L i C 10 4 ), and the reduction coloring film 4 4 is composed of an a-T i 0 2 film. It is a form etc.
  • the light control member 4 has a terminal plate 4 3 a electrically connected to each of the transparent electrodes 4 3 at one end.
  • terminal boards 43a are provided so as to be hidden in the frame 3 as shown in FIG. 1, and one end of the lead wire 50 is in contact with these terminal boards 43a. It is continued.
  • the lead wire 50 penetrates the inside of the frame 3 and the inner portion of the support shaft 10, and the other end extends to the ceiling surface side of the cabin (not shown in the figure and the lead wire 50 is Therefore, transparent electrode 43 is electrically connected to the battery of the vehicle via lead wire 50, and voltage is applied from the battery of the vehicle. .
  • the electrolyte 40 is a liquid electrolyte containing lithium iodide (L i I) and the reduction coloring film 44 is tungsten oxide (W 0 3 ), the following Change takes place.
  • the reduced color forming film 44 side is colored in blue and the counter electrode side is colored in yellow.
  • the light control member 4 develops a bluish green color as a whole.
  • the electrolyte 40 (light control member 4) becomes colorless and transparent when no voltage is applied, and becomes colored when a voltage is applied. And these two states can be done reversibly. In the colorless and transparent state, the light transmittance is large, and in the colored state, the light transmittance is small. That is, the light control member 4 can reversibly adjust the light transmittance by applying a voltage between the two transparent electrodes 43.
  • the electrolyte 4 0 is a lithium perchlorate, when reduction coloring film 4 4 is a- T i 0 2 thin film, the oxidation-reduction reaction occurs as follows.
  • the electrolyte 40 which was colorless, turns blue and enters a colored state. And these states can be done reversibly.
  • forms that do not use a reduced coloring film or an oxidized coloring film for example, by mixing an organic electroluminescent compound in an electrolyte and applying a voltage to the electrolyte layer to reversibly adjust the light transmittance. Is also possible.
  • the shatterproof film 42 provided on the light control member 4 is, for example, a thin sheet made of a resin, and has a large ductility. Therefore, the anti-scattering film 42 is resistant to breakage even when the glass sheet 41 is broken, and prevents the glass sheet 41 from scattering.
  • the shatterproof film 42 is formed of a translucent film. Therefore, since the shatterproof film 4.2 is translucent, it blocks a predetermined amount of light and transmits a predetermined amount of light. Also, the translucent film is translucent throughout the film, and is, for example, a colored translucent one or one having lattice-like stripes.
  • the light transmittance of the visor body 2 is determined or adjusted by the anti-scattering film 42 and the light control member 4.
  • the shatterproof film 42 has a predetermined light transmittance because it is translucent as described above. That is, the shatterproof film 42 partially blocks the light and at the same time transmits a portion of the light, thereby reducing the incident light into the vehicle interior.
  • the light control member 4 adjusts the light transmittance as described above. That is, the transmittance of light into the passenger compartment is adjusted by the light control member 4, whereby incident light into the passenger compartment is adjusted.
  • the amount of incident light into the passenger compartment is determined by the scattering prevention film 42. Is limited to a predetermined amount, and is adjusted by the light control member 4 in the direction to decrease the amount. That is, the light transmittance is adjusted by the anti-scattering film 42 to its maximum value, and the light control member 4 is adjusted to reduce its value.
  • the vehicle sun visor 1 is configured as described above.
  • the light control member 4 can change the light transmittance (light transmittance), and can adjust the light amount (brightness) into the vehicle compartment.
  • the dimmer member 4 can also adjust its visibility by changing the light transmittance. That is, the visibility of the light control member 4 can be increased by increasing the light transmittance, and the visibility can be reduced by decreasing the light transmittance.
  • the visor body 2 can be made to be in a state capable of sufficiently blocking light, or in a state of high visibility, by setting the light control member 4 to a desired transmittance. When the visibility is increased, it is easy to see the signal from the inside of the vehicle compartment and the like via the visor body 2 as well.
  • the method of changing the light transmittance by the light control member 4 can be easily performed by adjusting (turning on and off) the voltage.
  • the scattering prevention film 42 determines the maximum value of the light transmittance (maximum incident amount), and the light adjusting member 4 adjusts the value so as to be small. Therefore, the initial value (maximum value) of the transmittance is determined by the anti-scattering film 42, and the change in the transmittance is adjusted by the light control member 4. Therefore, the light transmittance by the visor body 2 can be easily determined or adjusted to a desired value.
  • the light control member 4 has a smaller width of transmittance to be adjusted by the scattering prevention film 42.
  • the light control member 4 may require a small contrast ratio. Therefore, the chemical reaction of the light control member 4 may be relatively small. Therefore, the time required for the reaction from the transparent state to the semitransparent state or the colored state, and the reverse reaction of the visor body 2 became short. Or the amount of voltage at the time of application can be reduced.
  • Embodiment 2 provided with the features described in the inventions 1 to 4 or the inventions 1, 2 and 4 will be described according to FIGS.
  • the second embodiment differs in the form of the flat glass 41, but is otherwise the same. Therefore, the description regarding the same points is omitted here, and the component numbers are the same as in the first embodiment. Use for convenience.
  • the glass sheet 41 in the second embodiment is configured to have at least one sheet with translucency.
  • two or one glass sheet 41 is configured in the form of ground glass or colored translucent.
  • the anti-scattering film 42 in this case may be semi-transparent as in the first embodiment, but may be formed of a transparent film.
  • the maximum light transmittance (state with a large amount of incident light) by the visor body 2 is determined by the plate glass 41 or the plate glass 41 and the scattering prevention film 42. Be done.
  • the transmittance is adjusted by the light control member 4 so as to be further reduced. Therefore, the desired transmittance is determined or adjusted by the two members of the glass sheet 4 1 and the light control member 4 or the three members to which the shatterproof film 42 is added. Therefore, the transmittance of the visor body 2 is easily determined or adjusted to the desired state.
  • the width of the transmittance for adjustment by the light control member 4 may be small because it has the glass sheet 41 or the glass sheet 41 and the scattering prevention film 42.
  • the contrast ratio of the light control member 4 can be reduced. Therefore, the chemical reaction of the light control member 4 may be small. As a result, the time required for the reaction by the light control member 4 can be reduced, or the amount of voltage application can be reduced.
  • Embodiment 3 is a form which does not have the shatterproof film 42 as shown in FIG. 3, and the remaining part is the same form as the embodiment 2, that is, at least one half of the glass sheet 41 is half. It is configured with transparency.
  • the maximum transmittance (in a state where the amount of incident light is large) is determined by the glass sheet 4 1, and the transmittance is adjusted by the light control member 4 so as to be small. Therefore, desired transmittance can be easily obtained.
  • Embodiment 4 is the form by which the light control member 4 in Embodiment 1 was replaced with the other light control member 6 (FIG. 4), Comprising: The characteristic of invention 1-3 is provided.
  • the fourth embodiment is different from the first embodiment only in the light control member 6 as shown in FIG. 4, and the other parts are the same as the first embodiment. Therefore, the same parts as in the first embodiment will not be described, and the parts numbers will be the same as in the first embodiment for the sake of convenience.
  • the light control member 6 is capable of adjusting the light transmittance (light transmittance), but, unlike the first embodiment, uses a configuration capable of adjusting the light scattering direction, for example, liquid crystal technology.
  • the light control member 6 is mainly composed of two glass plates 6 1 and a liquid crystal 60 sealed between the glass plates 61.
  • a transparent electrode 63 is provided on the entire surface on the liquid crystal 60 side (inner side) of the two sheet glasses 6 1. Further, as shown in FIG. 4, an anti-scattering film 42 is provided on the outer surface of the glass sheet 61.
  • the liquid crystal 60 corresponds to the sealing substance of the present invention.
  • the glass sheet 61 provided with the transparent electrode 63 corresponds to the translucent conductive substrate of the present invention.
  • the light control member 6 and the scattering prevention film 42 are, from the left side, the scattering prevention film 42, the sheet glass 61, the transparent electrode 63, the liquid crystal 60, the transparent electrode 63, the sheet glass 61 , Shatterproof film 4 2 laminated in order It is in a state of
  • a sealing material 65 is provided at the periphery of the light control member 6 so as to extend between the two glass sheets 61, whereby the liquid crystal 60 is formed of two glass sheets 6 1. Is enclosed in
  • the light control member 6 is also provided with a terminal plate 43a (see FIG. 1) as in the first embodiment (refer to FIG. 1), and a lead wire 50 is connected to the terminal plate 43a.
  • the liquid crystal 60 has the following properties. That is, the liquid crystal 60 includes a plurality of liquid crystal molecules, and these liquid crystal molecules form an irregular array in the state where no voltage is applied, and scatter the incident light in various directions. Then, the liquid crystal molecules in a state in which a voltage is applied are aligned regularly, and transmit incident light from a predetermined direction with little scattering. In other words, the liquid crystal 60 is physically changed by the application of a voltage (the alignment * alignment of liquid crystal molecules is changed), whereby the scattering amount or the transmittance of light is adjusted.
  • the shatterproof film 42 is formed of a translucent film.
  • the maximum transmittance (in the state where the amount of incident light is large) can be determined by the scattering prevention film 42, and the transmittance can be adjusted by the light control member 6 so as to be reduced.
  • Embodiment 1 or 4 two scattering prevention films 42 are provided, and both sheets are translucent, but one of the two scattering prevention films 42 is translucent. May be

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention concerne un pare-soleil pour véhicule qui empêche la lumière de s'introduire à l'intérieur du véhicule. Ce pare-soleil comprend une structure principale en forme de plaque qui, traditionnellement, est imperméable à la lumière. Cependant, le caractère parfaitement photo-imperméable de la structure principale du pare-soleil entrave le champ de vision de l'occupant du véhicule, allant dans certains cas jusqu'à l'empêcher de voir la signalisation routière. Par conséquent, l'invention a pour objet de fournir un pare-soleil pour véhicule qui permet à son occupant de voir correctement la signalisation routière, ou analogue, à travers la structure principale du pare-soleil. Pour ce faire, la structure principale (2) du pare-soleil de véhicule (1) est équipée d'un élément de réglage de lumière (4) qui sert à régler la transmission de lumière vers l'intérieur du véhicule. La structure principale (2) du pare-soleil, qui peut régler correctement la transmission de la lumière et la visibilité, préserve le champ de vision de l'occupant du véhicule et lui permet de voir facilement la signalisation routière, ou analogue.
PCT/JP2002/012030 2001-11-20 2002-11-18 Pare-soleil pour vehicule WO2003043845A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001355177A JP2003154845A (ja) 2001-11-20 2001-11-20 車両用サンバイザ
JP2001-355177 2001-11-20

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WO2003043845A1 true WO2003043845A1 (fr) 2003-05-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2458774A (en) * 2008-04-04 2009-10-07 Gm Global Tech Operations Inc Motor vehicle window pane having a sun visor and a cover
WO2023094349A1 (fr) * 2021-11-23 2023-06-01 Bos Gmbh & Co. Kg Ensemble pare-soleil pour habitacle et véhicule automobile comprenant ledit ensemble pare-soleil

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CN101228686B (zh) * 2005-07-25 2012-10-10 丰田自动车株式会社 发电系统
JP2009029245A (ja) * 2007-07-26 2009-02-12 Noba Denko Kk 車両用防眩装置
JP5303931B2 (ja) * 2007-12-26 2013-10-02 トヨタ自動車株式会社 車載用蓄電装置
JP2019001256A (ja) * 2017-06-13 2019-01-10 しげる工業株式会社 車両用サンバイザ
KR102330002B1 (ko) * 2018-12-06 2021-11-23 한국전자기술연구원 차량용 선바이저
CN110682774A (zh) * 2019-11-15 2020-01-14 上海岱美汽车内饰件股份有限公司 一种可透视智能化汽车遮阳板
WO2025047892A1 (fr) * 2023-09-01 2025-03-06 積水化学工業株式会社 Pare-soleil, dispositif d'affichage d'informations et véhicule

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GB2458774A (en) * 2008-04-04 2009-10-07 Gm Global Tech Operations Inc Motor vehicle window pane having a sun visor and a cover
GB2458774B (en) * 2008-04-04 2012-05-23 Gm Global Tech Operations Inc Motor vehicle having a window pane having a sun visor and a cover
WO2023094349A1 (fr) * 2021-11-23 2023-06-01 Bos Gmbh & Co. Kg Ensemble pare-soleil pour habitacle et véhicule automobile comprenant ledit ensemble pare-soleil

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