JPH10269826A - Light diffusing sheet and luminaire employing the same - Google Patents
Light diffusing sheet and luminaire employing the sameInfo
- Publication number
- JPH10269826A JPH10269826A JP9007797A JP9007797A JPH10269826A JP H10269826 A JPH10269826 A JP H10269826A JP 9007797 A JP9007797 A JP 9007797A JP 9007797 A JP9007797 A JP 9007797A JP H10269826 A JPH10269826 A JP H10269826A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl chloride
- chloride resin
- light
- sheet
- light diffusing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 229920005989 resin Polymers 0.000 claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 34
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 229920000728 polyester Polymers 0.000 claims abstract description 23
- 238000009792 diffusion process Methods 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000002759 woven fabric Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical compound FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 2
- 229920001038 ethylene copolymer Polymers 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZQXCQTAELHSNAT-UHFFFAOYSA-N 1-chloro-3-nitro-5-(trifluoromethyl)benzene Chemical compound [O-][N+](=O)C1=CC(Cl)=CC(C(F)(F)F)=C1 ZQXCQTAELHSNAT-UHFFFAOYSA-N 0.000 description 1
- KDEZRSAOKUGNAJ-UHFFFAOYSA-N C=C.C=C.F.F.F Chemical group C=C.C=C.F.F.F KDEZRSAOKUGNAJ-UHFFFAOYSA-N 0.000 description 1
- WQNTXSXCXGWOBT-UHFFFAOYSA-N C=C.C=C.F.F.F.F Chemical group C=C.C=C.F.F.F.F WQNTXSXCXGWOBT-UHFFFAOYSA-N 0.000 description 1
- HRPWYKJYMAGADJ-UHFFFAOYSA-N C=C.FC(C(F)=C(F)F)(F)F.F.F.F.F Chemical group C=C.FC(C(F)=C(F)F)(F)F.F.F.F.F HRPWYKJYMAGADJ-UHFFFAOYSA-N 0.000 description 1
- 229920001780 ECTFE Polymers 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光透過率と光拡散
率が大きく且つ透けの少ない乳白色プラスチックシート
及びこれを使用した照明器具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a milky white plastic sheet having high light transmittance and light diffusivity and low transparency, and a lighting apparatus using the same.
【０００２】[0002]
【従来の技術】従来、蛍光燈や白熱灯を光源とする照明
器具のランプイメージを見えなくする、あるいは光源の
まぶしさを減少させる等の目的で乳白色のプラスチック
が照明器具のパネル、シェード、看板、広告灯等に用い
られている。この目的のために使用される乳白色プラス
チックは通常、アクリル樹脂、スチロール樹脂、ポリカ
ーボネート、塩化ビニル等の透明プラスチックに粒径が
１μｍ程度の硫酸バリウム、炭酸カルシウム、石英等の
粒子を添加、分散させて製造されたものが一般的であっ
た。これらのプラスチックをマルチフィラメント織布で
強化したものもある。2. Description of the Related Art Hitherto, milky white plastic has been used for panels, shades, and signboards of lighting equipment for the purpose of making a lamp image of a lighting equipment using a fluorescent lamp or an incandescent light as a light source invisible or reducing the glare of the light source. , Advertising lights and the like. Milky white plastics used for this purpose are usually prepared by adding and dispersing particles such as barium sulfate, calcium carbonate, and quartz having a particle size of about 1 μm to transparent plastics such as acrylic resin, styrene resin, polycarbonate, and vinyl chloride. Those manufactured were common. Some of these plastics are reinforced with multifilament woven fabrics.
【０００３】[0003]
【発明が解決しようとする課題】光源のランプイメージ
を見えなくするために拡散剤の添加量を増やすと透過率
が低くなると共に樹脂の強度が低下するため、特に大面
積の拡散板を作成した場合、樹脂の厚みが大きくなり、
それに加えてこれに伴なう透過率の低下も生じることに
なる。When the addition amount of the diffusing agent is increased in order to make the lamp image of the light source invisible, the transmittance is lowered and the strength of the resin is lowered. In this case, the thickness of the resin increases,
In addition to this, the transmittance is also reduced.
【０００４】上記事情に鑑み、本発明は高透過率、高拡
散率を有し、なおかつ、大面積に対応できるように、軽
量、高強度である光拡散シートを提供することを目的と
する。[0004] In view of the above circumstances, an object of the present invention is to provide a light-diffusing sheet which has a high transmittance and a high diffusivity and is lightweight and high-strength so that it can cope with a large area.
【０００５】[0005]
【課題を解決するための手段】本発明の光拡散シート
は、塩化ビニル樹脂層２を有する、光源と被照明体との
間に配置される光拡散シート１であって、前記塩化ビニ
ル樹脂層２がポリエステルモノフィラメント繊維シート
３で強化されていることを特徴とする（符号は添付図面
における符号である）。The light diffusion sheet of the present invention is a light diffusion sheet 1 having a vinyl chloride resin layer 2 and disposed between a light source and an object to be illuminated. 2 is reinforced with a polyester monofilament fiber sheet 3 (the reference numerals are those in the attached drawings).
【０００６】[0006]
【発明の実施の態様】本発明に使用される塩化ビニル樹
脂層には拡散剤を含有せしめることが好ましい。拡散剤
としては、通常、プラスチックを乳白化する目的で用い
られるもの、例えば、ガラスビーズ、ガラス繊維粉末、
石英粉末又は硫酸バリウム、炭酸カルシウム、酸化チタ
ン等の結晶性透明粒子が使用できるが、中空又は充実の
ガラスビーズが特に好ましい。透明粒子の粒径もしくは
短径はいずれも０．１〜１００μｍ、好ましくは０．５
〜８０μｍである。また、混入量は０．１〜３０重量
％、好ましくは０．３〜２０重量％である。０．１重量
％未満では有効な光拡散効果を得ることができず、ま
た、３０重量％以上では光線の全透過率が低下すると共
に塩化ビニル樹脂シートの機械的強度が低下し、好まし
くない。DESCRIPTION OF THE PREFERRED EMBODIMENTS The vinyl chloride resin layer used in the present invention preferably contains a diffusing agent. As the diffusing agent, those usually used for the purpose of whitening plastics, for example, glass beads, glass fiber powder,
Quartz powder or crystalline transparent particles such as barium sulfate, calcium carbonate and titanium oxide can be used, but hollow or solid glass beads are particularly preferred. Each of the transparent particles has a particle diameter or a minor axis of 0.1 to 100 μm, preferably 0.5 to 100 μm.
８０80 μm. The mixing amount is 0.1 to 30% by weight, preferably 0.3 to 20% by weight. If it is less than 0.1% by weight, an effective light diffusion effect cannot be obtained, and if it is more than 30% by weight, the total transmittance of light is reduced and the mechanical strength of the vinyl chloride resin sheet is undesirably reduced.
【０００７】本発明に強化用に使用される繊維シートは
ポリエステルモノフィラメント繊維からなる織布３であ
る。強化する方法は、例えば、ポリエステルモノフィラ
メント繊維シート３を塩化ビニル樹脂２で挟み込んで、
表裏各面をそれぞれ強固に接着させることである。The fiber sheet used for reinforcement in the present invention is a woven fabric 3 made of polyester monofilament fibers. The reinforcing method is, for example, by sandwiching the polyester monofilament fiber sheet 3 with the vinyl chloride resin 2,
This means that the front and back surfaces are firmly adhered to each other.
【０００８】ポリエステルモノフィラメント繊維シート
３は、塩化ビニル樹脂層との接着性及び柔軟性を良好に
するために、空間率を３７〜６０％とするのが好まし
く、特に４２〜６０％が好ましい。また、５０ｋｇ／３
０ｍｍ以上、特に９０ｋｇ／３０ｍｍ以上の経・緯方向
引張強度及び３０ｇ／ｍ2 以上、特に７０〜１２０ｇ／
ｍ2 の目付を有するものが好ましい。The polyester monofilament fiber sheet 3 preferably has a porosity of 37 to 60%, particularly preferably 42 to 60%, in order to improve the adhesiveness and flexibility with the vinyl chloride resin layer. In addition, 50kg / 3
0 mm or more, especially 90 kg / 30 mm or more, tensile strength in the warp / latitudinal direction and 30 g / m 2 or more, especially 70 to 120 g /
Those having a basis weight of m 2 are preferred.
【０００９】ポリエステルモノフィラメント繊維の種
類、単繊維の太さは一般的には太さ約３０〜４１０μ
ｍ、特に１２５〜３００μｍが好ましい。The kind of the polyester monofilament fiber and the thickness of the single fiber are generally about 30 to 410 μm.
m, and particularly preferably 125 to 300 μm.
【００１０】ポリエステルモノフィラメント繊維シート
３の織布は、平織、綾織、朱子織、等とすることができ
る。The woven fabric of the polyester monofilament fiber sheet 3 can be plain weave, twill weave, satin weave, or the like.
【００１１】このようなポリエステルモノフィラメント
繊維で強化した塩化ビニル樹脂材料を製造するには、ポ
リエステルモノフィラメント繊維シート３と、塩化ビニ
ル樹脂層２とを貼着すればよい。好ましくは、ポリエス
テルモノフィラメント繊維シート３と塩化ビニル樹脂層
２を塩化ビニル樹脂の融点以上の温度で加圧成形する。
ポリエステルモノフィラメント繊維シート３と塩化ビニ
ル樹脂層２の中間には接着物質を介在させてもよいし、
介在させないでも目的を達成することができる。In order to produce such a vinyl chloride resin material reinforced with polyester monofilament fibers, a polyester monofilament fiber sheet 3 and a vinyl chloride resin layer 2 may be attached. Preferably, the polyester monofilament fiber sheet 3 and the vinyl chloride resin layer 2 are molded under pressure at a temperature equal to or higher than the melting point of the vinyl chloride resin.
An adhesive substance may be interposed between the polyester monofilament fiber sheet 3 and the vinyl chloride resin layer 2,
The purpose can be achieved without any intervention.
【００１２】接着物質を介在させる場合、例えば、平均
重合度４００〜９００の塩化ビニル・酢酸ビニル共重合
体樹脂をＭＦＫ、ＤＭＦ、トルエン、アセトン等に５〜
３０重量％溶解したものにイソシアネートを含む硬化剤
を３重量％配合し、この溶液にポリエステルモノフィラ
メント繊維シートを浸漬して乾燥させ溶媒を実質的に含
まなくした後、塩化ビニル樹脂シートを加熱圧着して貼
着させる。When an adhesive substance is interposed, for example, a vinyl chloride / vinyl acetate copolymer resin having an average degree of polymerization of 400 to 900 is mixed with MFK, DMF, toluene, acetone or the like for 5 to 5 minutes.
3% by weight of a curing agent containing isocyanate was added to 30% by weight of the solution, and the polyester monofilament fiber sheet was immersed in this solution and dried to substantially eliminate the solvent. And stick it.
【００１３】接着剤を介在させない場合は、例えば、ポ
リエステルモノフィラメント繊維シートに直接塩化ビニ
ルシートを加熱圧着して貼着させることにより、本発明
に好適なポリエステルモノフィラメント繊維強化塩化ビ
ニル樹脂材料を得ることができる。When an adhesive is not interposed, for example, a polyester monofilament fiber reinforced vinyl chloride resin material suitable for the present invention can be obtained by bonding a vinyl chloride sheet directly to a polyester monofilament fiber sheet by heating and pressing. it can.
【００１４】ポリエステル繊維で強化した塩化ビニル樹
脂材料はアクリル樹脂等と比較して遥かに柔軟性に富む
にも拘わらず引張強度が大きくしかも織り傷の発生が少
ないという特徴があるので、これを照明器具の照射面を
なす枠体に被着することは容易であり、その形状、寸法
に対する自由度が大きく且つ現場施工が可能であるとい
う点でも望ましいものである。A vinyl chloride resin material reinforced with polyester fibers has a feature that it has a large tensile strength and a small number of weaving scratches, though it is much more flexible than an acrylic resin or the like. It is easy to attach to the frame that forms the irradiation surface of the device, and it is desirable in that it has a large degree of freedom with respect to its shape and dimensions and that it can be constructed on site.
【００１５】本発明にとって必須ではないが、最外層に
フッ素樹脂の層５を設けることができる。フッ素樹脂と
しては、一フッ化樹脂（ＰＶＦ）、二フッ化樹脂（ＰＶ
ＤＦ）、三フッ化樹脂（ＰＣＴＦＥ）、四フッ化樹脂
（ＰＴＦＥ）、三フッ化エチレン−エチレン共重合体
（ＥＣＴＦＥ）、四フッ化エチレン−エチレン共重合体
（ＥＴＦＥ）、四フッ化エチレン−六フッ化プロピレン
共重合樹脂（ＦＥＰ）、四フッ化変性樹脂（ＰＦＡ）等
が例示できる。中でも、セントラル硝子株式会社により
「セフラルソフト」（商標）として市販されている軟質
フッ素樹脂（ＶＤＦ／ＣＴＦＥ／ＰＶＤＦ）が難燃・防
汚性能に優れているので好ましい。Although not essential to the present invention, a fluororesin layer 5 can be provided as the outermost layer. As the fluororesin, monofluoride resin (PVF), difluoride resin (PV
DF), trifluoride resin (PCTFE), tetrafluoride resin (PTFE), ethylene trifluoride-ethylene copolymer (ECTFE), ethylene tetrafluoride-ethylene copolymer (ETFE), ethylene tetrafluoride Hexafluoropropylene copolymer resin (FEP), tetrafluoride-modified resin (PFA) and the like can be exemplified. Among them, a soft fluororesin (VDF / CTFE / PVDF) marketed by Central Glass Co., Ltd. as "Sefuralsoft" (trademark) is preferable because of its excellent flame retardancy and antifouling performance.
【００１６】本発明の光拡散シートは、室内の各種照
明、屋外の照明等、また、その他各種のオーバーレイと
して、さらに、広告表示装置、装飾ディスプレー等とし
て使用することができる。The light diffusion sheet of the present invention can be used as various kinds of indoor lighting, outdoor lighting, etc., as other various overlays, as an advertisement display device, a decorative display and the like.
【００１７】例えば、図２は、本発明の光拡散シートを
広告看板に使用した一例である。ハウジング６内部に光
源となる蛍光燈７と反射板８を設け、ハウジングの被照
明体側に本発明の光拡散シート１を展張する。For example, FIG. 2 shows an example in which the light diffusion sheet of the present invention is used for an advertising sign. A fluorescent lamp 7 serving as a light source and a reflection plate 8 are provided inside a housing 6, and the light diffusion sheet 1 of the present invention is spread on the illuminated body side of the housing.
【００１８】[0018]
【実施例】ポリエステルモノフィラメント繊維織布３と
して、ＮＢＣ工業株式会社製ＴＢ−４０（厚み：０．４
１ｍｍ、密度：縦４０本・横４０本／インチ、平織、目
付８０ｇ／ｍ2 ）を使用し、３０インチ逆Ｌ型カレンダ
ー成形機（ロール温度１７５℃）にて製造した塩化ビニ
ル樹脂を表面２５０μｍ、裏面１５０μｍ厚のフィルム
としてカレンダー成形機で張り合わせる方法で、ポリエ
ステルモノフィラメント繊維強化塩化ビニル樹脂シート
４を作成した。最外層には、セントラル硝子株式会社に
より「セフラルソフト」（商標）として市販されている
軟質フッ素樹脂（ＶＤＦ／ＣＴＦＥ／ＰＶＤＦ）からな
るフッ素樹脂の層５を設けた。EXAMPLE As a polyester monofilament fiber woven fabric 3, TB-40 (thickness: 0.4) manufactured by NBC Corporation was used.
1 mm, density: 40 vertical / 40 horizontal / inch, plain weave, weight 80 g / m 2 ), using a 30-inch reverse L-type calendering machine (roll temperature: 175 ° C.) to produce a 250 μm surface of vinyl chloride resin Then, a polyester monofilament fiber reinforced vinyl chloride resin sheet 4 was produced by laminating a film with a thickness of 150 μm on the back side using a calender molding machine. The outermost layer was provided with a layer 5 of a fluororesin made of a soft fluororesin (VDF / CTFE / PVDF) marketed by Central Glass Co., Ltd. as “Sefrasoft” (trademark).
【００１９】[0019]
【発明の効果】本発明の光拡散シートは、柔軟性に富
み、軽量且つ引張り強度が大きく、大面積で使用できる
ため、屋内屋外に設置する極めて大型の面光源を形成す
る拡散板として使用できる。The light diffusing sheet of the present invention is rich in flexibility, lightweight, has high tensile strength, and can be used in a large area, so that it can be used as a diffusion plate for forming a very large area light source installed indoors and outdoors. .
【図１】本発明の光拡散シートの断面図である。FIG. 1 is a cross-sectional view of a light diffusion sheet of the present invention.
【図２】本発明の光拡散シートを使用した広告看板の断
面図である。FIG. 2 is a sectional view of an advertising signboard using the light diffusion sheet of the present invention.
１ 光拡散シート ２ 塩化ビニル樹脂層 ３ ポリエステルモノフィラメント繊維 ４ ポリエステルモノフィラメント繊維で強化した塩
化ビニル樹脂シート ５ フッ素樹脂層Reference Signs List 1 light diffusion sheet 2 vinyl chloride resin layer 3 polyester monofilament fiber 4 vinyl chloride resin sheet reinforced with polyester monofilament fiber 5 fluorine resin layer
Claims (6)
と被照明体との間に配置される光拡散シート（１）であ
って、 前記塩化ビニル樹脂層（２）がポリエステルモノフィラ
メント繊維シート（３）で強化されていることを特徴と
する光拡散シート。1. A light diffusion sheet (1) having a vinyl chloride resin layer (2) disposed between a light source and an illuminated body, wherein the vinyl chloride resin layer (2) is a polyester monofilament fiber sheet. A light diffusion sheet which is reinforced in (3).
ト（３）と塩化ビニル樹脂層（２）が塩化ビニル樹脂の
融点以上の温度で加圧成形されている請求項１記載の光
拡散シート。2. The light diffusion sheet according to claim 1, wherein the polyester monofilament fiber sheet (3) and the vinyl chloride resin layer (2) are pressure-formed at a temperature not lower than the melting point of the vinyl chloride resin.
んでいる請求項１又は２記載の光拡散シート。3. The light diffusing sheet according to claim 1, wherein the vinyl chloride resin layer contains a light diffusing agent.
ト（３）が織布である請求項１ないし３のいずれかに記
載の光拡散シート。4. The light diffusing sheet according to claim 1, wherein the polyester monofilament fiber sheet is a woven fabric.
る請求項１ないし４のいずれかに記載の光拡散シート。5. The light diffusion sheet according to claim 1, further comprising a fluororesin layer.
シートを通して光照射する照明器具。6. A lighting device for irradiating light through the light diffusion sheet according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09007797A JP4014249B2 (en) | 1997-03-24 | 1997-03-24 | Light diffusion sheet and lighting apparatus using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09007797A JP4014249B2 (en) | 1997-03-24 | 1997-03-24 | Light diffusion sheet and lighting apparatus using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10269826A true JPH10269826A (en) | 1998-10-09 |
| JP4014249B2 JP4014249B2 (en) | 2007-11-28 |
Family
ID=13988468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09007797A Expired - Fee Related JP4014249B2 (en) | 1997-03-24 | 1997-03-24 | Light diffusion sheet and lighting apparatus using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4014249B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009135026A (en) * | 2007-11-30 | 2009-06-18 | Toshiba Lighting & Technology Corp | Led luminaire |
| JP2013501334A (en) * | 2009-08-05 | 2013-01-10 | エットリン アクティエンゲゼルシャフト | Device that produces light effects |
| US11338543B2 (en) * | 2017-09-01 | 2022-05-24 | Benecke-Kaliko Ag | Light-permeable multi-layer composite film |
-
1997
- 1997-03-24 JP JP09007797A patent/JP4014249B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009135026A (en) * | 2007-11-30 | 2009-06-18 | Toshiba Lighting & Technology Corp | Led luminaire |
| JP2013501334A (en) * | 2009-08-05 | 2013-01-10 | エットリン アクティエンゲゼルシャフト | Device that produces light effects |
| US11338543B2 (en) * | 2017-09-01 | 2022-05-24 | Benecke-Kaliko Ag | Light-permeable multi-layer composite film |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4014249B2 (en) | 2007-11-28 |
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