JPH0717041Y2 - Partition - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a partition or other partition for blocking the line of sight from a certain direction.

[Outline of the Invention] In the partition, the present invention uses a glass or transparent plastic as a light control film that selectively scatters only incident light within a predetermined angle range with respect to the film and transmits incident light at other angles. It is arranged between the surface or a pair of glass or transparent plastic so that the opposite side of the partition cannot be seen from the line of sight from a predetermined range.

[Prior Art] Conventional partitions are opaque or transparent so that the scenery at all angles cannot be seen or seen through.

[Problems to be Solved by the Invention] The conventional attachments as described above are already used in many cases such as partitions in hospital rooms and post office counters. However, the following problems have recently been pointed out regarding such partitions.

That is, especially in a hospital room, if the partitions are transparent, the privacy of the sick person on the bed cannot be protected. Furthermore, the use of opaque partitions is not good for the mental well-being of the sick person or for the safety of the patient room. Also,
For security reasons, transparent partitions are installed at post office counters, but even people outside the counter can look into the counter, which may cause unnecessary danger when handling cash.

Furthermore, the use of an opaque partition makes the guest feel uncomfortable, while the person inside the counter cannot see the outside, which is not good for crime prevention.

The present invention focuses on the above-mentioned problems in the conventional partition, and was devised so that only the line of sight from a predetermined range direction can be shielded and the other directions can be made transparent. .

[Means for Solving the Problems] The present invention is a transparent plate having a light control film that selectively scatters only incident light within a predetermined angle range with respect to a film and transmits incident light at other angles. It is a partition having a laminated body that is adhered to the surface or is interposed between a plurality of transparent plates. The above-mentioned predetermined angle ranges are within 45 ° when measured right and left from the direction of a plane that is perpendicular to the partition and is vertical. Further, the above-mentioned predetermined angle ranges are within a range of 20-90 ° measured from at least one of the right and left sides from the direction of the surface perpendicular to the partition.

According to the present invention, a light control film that selectively scatters only incident light within a predetermined angle range with respect to a film and transmits incident light at other angles is formed on a glass or transparent plastic surface or a pair of glass. Alternatively, it is arranged between transparent plastics and a partition is produced for the line of sight from a predetermined range of directions.

The light control film used in the present invention is obtained by curing a resin composition composed of an oligomer and a monomer or monomers having different refractive indexes,
Preferably, it is obtained by irradiating a resin composition comprising a photopolymerizable oligomer and a photopolymerizable monomer or photopolymerizable monomers having different refractive indexes with ultraviolet rays to cure the resin composition. It is determined by the irradiation angle, the difference in the refractive index of the resin composition, and the like. still,
The thickness of the light control film used in this invention is 20 ~ 2000μ
m. The method for producing the light control film is described in Japanese Patent Application Laid-Open Publication No. Hei 1-77001, "Light control plate and method for producing the same" by the present inventors, and the same publication, Japanese Patent Laid-Open No. 63-63001.
No. 309902, "Light control plate and its manufacturing method".

Further, 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. Suitable examples include polycarbonate resin, acrylic resin, methacrylic resin, polystyrene resin and the like. The glass plate used in the present invention may be a float glass plate.

Further, in the present invention, the method of depositing the light control film and the transparent plate such as transparent plastic or glass plate is not particularly limited, and a known method can be used. For example, as shown in FIG. 3, the light control film 1 may be attached to the surface of the glass plate or the transparent plastic plate 2, and as shown in FIG. The light control film 1 may be sandwiched between the glass plates 2, or the light control film 1 may be sandwiched between the glass plates 2 and 2'and the plastic plate 3 may be further adhered to the outer surface of the glass plate as shown in FIG. Good. It is preferable to provide a scratch-resistant coating on the outer surface of the plastic plate.

In addition to the present invention, the present invention is for counters at banks, post offices,
It is used as a partition to separate two spaces, a partition wall, a bran, and other partitions.

[Effect of device]

According to the partition of the present invention, it is possible to block only the line of sight from a predetermined range direction and to make it transparent in other directions, which is excellent in terms of crime prevention and protection of privacy, and is excellent for others. It does not cause discomfort or spoil the aesthetics.

[Embodiment] Next, an embodiment of the partition of the present invention will be described with reference to the drawings.

100 parts of polyetherurethane acrylate (refractive index 1.481) obtained by the reaction of polypropylene glycol having an average molecular weight of 2000 with toluene diisocyanate and 2-hydroxyethyl acrylate, 100 parts of tribromophenoxyethyl acrylate (refractive index 1.567) and benzyl dimethyl ketal 1 m of resin composition prepared by adding and mixing 6 parts
It is injected between 60 cm square glass plates sandwiching m-thick spacers, and ultraviolet rays from a high pressure mercury lamp (80 W / cm, 2 kw, emission length 25 cm, manufactured by Ushio Denki) are perpendicular to the glass surface from a distance of 50 cm. It was irradiated for 1 minute to obtain a cured sheet. The obtained cured sheet was cloudy when viewed from the front and was transparent when viewed from other angles. FIG. 6 shows the measurement results of turbidity of this cured sheet.

FIG. 1 shows a situation in which the partition of the present invention is used in a hospital, and patients lying in beds next to each other cannot see each other. However, the situation of the patient can be seen by the nurses patrol the corridor. FIG. 2 (A) shows that the light control film used in the present invention scatters light rays having incident angles within ± 45 °, for example, 0 ° (normal incidence), + 10 ° and −30 °. Indicates the status. FIG. 2 (B) shows a state in which light rays having an incident angle other than ± 45 °, such as light having incident angles of + 50 ° and -60 °, are directly transmitted to the film.

[Brief description of drawings]

FIG. 1 shows a situation in which the present invention is used, and FIG. 2 shows a light transmission state of a light control film used in the present invention. 3 to 5 show specific examples of sectional views of the partition of the present invention. Further, FIG. 6 shows an angle dependence characteristic diagram of the film. Explanation of code a …… Patient, B …… Nurse, c …… The partition according to the present invention,
○ …… Visible, X …… Invisible

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Toshiki Doi 2-10-1, Tsukahara, Takatsuki City, Osaka Prefecture Sumitomo Chemical Co., Ltd. (72) Creator Kazuhiro Matsumura 2-10-1, Tsukahara, Takatsuki City, Osaka Prefecture Sumitomo Kagaku Kogyo Co., Ltd. (72) Inventor Tetsuro Ohno 2-10-1 Tsukahara, Takatsuki City, Osaka Sumitomo Kagaku Kogyo Co., Ltd. (56) Reference JP-A-51-74425 (JP, A)

Claims (3)

[Scope of utility model registration request] 1. Light obtained by irradiating a film of a resin composition comprising a photopolymerizable oligomer and a photopolymerizable monomer or photopolymerizable monomers having different refractive indexes with ultraviolet rays from a predetermined angle to cure the film. A control film that selectively scatters only incident light within a predetermined angle range, and allows incident light of other angles to go straight through and be seen through. Or a partition having a laminated body inserted between a plurality of transparent plates. 2. The partition according to claim 1, wherein the predetermined angle range is within 45 ° measured from the direction of a plane perpendicular to the partition to the left and right, respectively. . 3. The utility model registration claim according to claim 1, wherein the predetermined angle ranges are within a range of 20-90 ° measured from at least one of the right and left sides of the surface perpendicular to the partition. Partition described in section.