JPH0622796Y2 - Blind shutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a blind shutter used in an office, a house, or the like.

[Prior Art] Conventionally, a blind shutter is made of a synthetic resin plate such as polyvinyl chloride or a thin metal plate such as steel.

[Problems to be solved by the invention]

The above-mentioned conventional blind shutter is made of an opaque material, and by adjusting the angle, it shields sunlight to eliminate glare, adjusts the amount of light, or can be seen by a third party outdoors. It is used to protect privacy because there is no. Blind shutters made of opaque material can achieve the above-mentioned objectives, but when using blind shutters, it means that the amount of sunlight is reduced, thus requiring supplementary room lighting. Or, it gives unnecessary pressure to the people inside the room.

In view of these problems, the present invention provides a blind shutter that simultaneously satisfies antiglare property, privacy protection, and transparency.

[Means for solving problems]

The present invention attaches a light control film having a function of selectively scattering only incident light within a predetermined angle range to a film and transmitting incident light of other angles, or a light control film is attached to a transparent plate surface, or It is a blind shutter composed of a laminated body interposed between a plurality of transparent plates.

The blind shutter of the present invention looks like opaque frosted glass when the laminate constituting the blind shutter is viewed from the specific angle range, and is transparent when viewed from outside the specific angle range. By setting the specific angle range that scatters the light and appropriately adjusting the angle of the blind shutter, conventional blinds such as external lighting and the blocking of the third person's line of sight, or the blocking of sunlight and the securing of external visibility are provided. It is possible to easily satisfy two different requirements that the shutter cannot always satisfy.

The light control film used in the present invention is cured by irradiating ultraviolet rays to a resin composition including a photopolymerizable oligomer and a photopolymerizable monomer or photopolymerizable monomer or photopolymerizable oligomer having different refractive indexes. The angle dependence is determined by the irradiation angle of ultraviolet rays, the irradiation conditions, the difference in the refractive index of the resin composition, and the like. The thickness of the light control film used in the present invention is 20 to 2000 μm.

The method for producing this light control film was previously described in Japanese Patent Application No. 61-302500 (December 1986).
Filed on Jun. 18, “Light control plate and manufacturing method thereof”) and patent application, filed on Jun. 11, 1987, “Light control plate and manufacturing method thereof”.

In the present invention, since the light control film adjusts the angle dependence of light transmission and scattering, a plurality of light control films can be used in a stacked manner according to the purpose.

In the present invention, a transparent plastic plate and / or a transparent glass plate is used as the transparent plate.

The transparent plastic plate used in the present invention is not particularly limited as long as it is transparent, and any plate can be used.
A polycarbonate resin, which is preferably used,
An acrylic resin, a methacrylic resin, a polystyrene resin, etc. are mentioned. The glass plate used in the present invention is not particularly limited, but a float glass plate can be used, for example.

In the present invention, a method for depositing the light control film and a transparent plate such as a transparent plastic plate or a glass plate is not particularly limited, and a known method can be used. For example, a light control film may be adhered to the surface of a glass plate or a transparent plastic plate, a light control film may be sandwiched between glass plates or a transparent plastic plate, and a light control film may be sandwiched between glass plates. A plastic plate may be further adhered to the outer surface of the. It is preferable to provide a scratch-resistant coating on the outer surface of the plastic plate.

The blind shutter of the present invention can be manufactured by a method of manufacturing a normal blind shutter using the laminate including the light control film and the transparent plate as a shutter plate. Further, the laminate can be used by coloring it as necessary.

[Effect of device]

The blind shutter of the present invention scatters light incident on the blind shutter at a specific angle, thereby providing an anti-glare effect and helping protect privacy. On the other hand, since it can be transmitted by light rays other than the specific angle, it does not obstruct the user's field of view, and can remove unnecessary pressure and discomfort
Antiglare, privacy protection (scattering) and transparency (transparency) can be achieved well.

Therefore, even if the blind shutter is used during the daytime, it is not always necessary to use auxiliary lighting.

The user achieves the above-mentioned object by adjusting the angle of the blind shutter of the present invention in consideration of the light selective transmission of the light control film used in the present invention, the angle of sunlight and the position of an outdoor third party. You can

〔Example〕

100 parts by weight of polyether urethane acrylate (refractive index: 1.481) obtained by the reaction of polypropylene glycol having an average molecular weight of 2000, toluene diisocyanate and 2-hydroxyethyl acrylate, was added to tribromophenoxyethyl acrylate (refractive index: 1.567). ) 100 parts by weight and 6 parts by weight of benzyl dimethyl ketal were added and mixed, and the resin composition was poured between transparent methacrylic resin plates of 1 mm thickness 40 cm x 50 cm with a spacer of 1 mm thickness interposed.

A high-pressure mercury lamp (80 mm), which is a vertical plane that is parallel to the longitudinal direction of the resin plate at a distance of 50 cm above the methacrylic resin plate and that passes through an imaginary line in the approximate center of the resin plate surface, is parallel to the resin plate.
A cured sheet was obtained by irradiating with ultraviolet rays for about 1 minute with w / cm, 2 KW, emission diameter 25 cm, manufactured by Ushio Inc.

The same operation was repeated to obtain 8 cured sheets.

FIG. 3 shows the results of measuring the haze value of this cured sheet.

The cured sheet was cut into pieces of 5 cm × 50 cm in parallel with the longitudinal direction to prepare a blind shutter as shown in FIG.

FIG. 2 shows the use state of the blind shutter.

Since the sun rays incident at an angle of 20 ° forward and backward (angles of 25 ° to 65 ° when viewed from the horizontal direction) when viewed from the direction perpendicular to the surface of the blind shutter become scattered light and become frosted glass, use The person does not feel glare.

On the other hand, since the light rays incident at an angle of 45 ° or less viewed from the direction perpendicular to the blind shutter surface corresponding to the viewing angle direction of the user are transmitted, the user's field of view is not blocked.

[Brief description of drawings]

FIG. 1 is a structure of a blind shutter, and FIG. 2 is a partial sectional view showing a usage state. FIG. 3 shows the angle dependence of the laminate having the light control film. 1 …… Opening / closing device 2 …… Blind shutter 3 …… Opening and closing and angle adjusting head 4 …… Blind shutter fixing race 5 …… Metallic head 6 …… Blind shutter user's line of sight 7 …… Sun rays ○ …… Visible × …… Invisible

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuro Ohno 2-10-1 Tsukahara, Takatsuki-shi, Osaka Sumitomo Kagaku Kogyo Co., Ltd. (56) Reference JP-A-56-150702 (JP, A) Sho 61-163897 (JP, U) Japanese Patent Sho 57-42794 (JP, B2)

Claims (1)

[Scope of utility model registration request] 1. Light obtained by irradiating an ultraviolet ray to a resin composition composed of a photopolymerizable oligomer and a photopolymerizable monomer, photopolymerizable monomer or photopolymerizable oligomer having different refractive indexes and curing the composition. A control film, which has a function of selectively scattering only incident light within a predetermined angle range with respect to the film and transmitting incident light of other angles is attached to the transparent plate surface. Or a blind shutter made of a laminated body that is interposed between a plurality of transparent plates.