JPS6440835U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案のスクリーンの斜視模式図、第
２〜４図は断面図で、１は第一反射層、２はメタ
ライズ層６を有する第二反射層、３は裏打層、４
は第一湾曲凹面、５は該凹面の境界部、７は第二
湾曲凹面、１０は前記境界部の微細突部、１１は
湾曲凹面内の緩かな小さい凹凸を示す。また、３
１は裏打層３の合成樹脂フイルムまたシートから
なる第１層、３２は第２層、８は織物等の補強繊
維層、９は合成繊維層を示す。 また、第５図は正面輝度測定法を説明する側面
図、第６図は半値角の測定法を示す上面図である
。さらに第７図は四隅の輝度比の測定法を説明す
る側面図、第８図はスクリーンの測定点を示す正
面図である。 FIG. 1 is a schematic perspective view of the screen of the present invention, and FIGS. 2 to 4 are cross-sectional views, where 1 is a first reflective layer, 2 is a second reflective layer having a metallized layer 6, 3 is a backing layer, and 4 is a cross-sectional view.
5 is a first curved concave surface, 5 is a boundary of the concave surface, 7 is a second curved concave surface, 10 is a fine protrusion at the boundary, and 11 is a small gentle unevenness within the curved concave surface. Also, 3
Reference numeral 1 indicates a first layer of the backing layer 3 made of a synthetic resin film or sheet, 32 a second layer, 8 a reinforcing fiber layer such as a woven fabric, and 9 a synthetic fiber layer. Further, FIG. 5 is a side view illustrating a method for measuring front brightness, and FIG. 6 is a top view illustrating a method for measuring a half-value angle. Furthermore, FIG. 7 is a side view illustrating a method for measuring the brightness ratio of the four corners, and FIG. 8 is a front view showing measurement points on the screen.

Claims (1)

【実用新案登録請求の範囲】 (1) 表面に多角形の単位湾曲凹面（第一湾曲凹
面）が規則的にかつ最密状態で配列され、鱗片状
パール顔料を含有する合成樹脂フイルムまたはシ
ートからなる第一反射層、メタライズ層を有する
合成樹脂製フイルムまたはシートからなる第二反
射層および合成樹脂製フイルムおよび／または繊
維補強層からなる裏打層が順次積層一体化された
シートにおいて、第一湾曲凹面の経および緯方向
の幅が０．２〜２mm、該湾曲凹面の緯方向の幅ｌ
と凹部最大深さｄとの関係がｌ／ｄ＝２〜３０で
あり、隣接する各第一湾曲凹面の境界は曲面で連
なり、前記湾曲凹面の境界部表面は多数の微細突
部により粗面化され、かつ第一湾曲凹面内には前
記突部より大きく緩やかな凹凸を有していて、受
光正面輝度が２〜１５、半値角が９゜以上である
ことを特徴とする反射スクリーン。 (2) 第二反射層表面がほゞ平滑な実用新案登録
請求の範囲第１項に記載の反射スクリーン。 (3) 第二反射層表面に凹凸を有する実用新案登
録請求の範囲第１項に記載の反射スクリーン。 (4) 第二反射層表面に、第一反射層の単位湾曲
凹部にほぼ対応した湾曲凹面（第二湾曲凹面）を
有し、第二湾曲凹面の凹部最大深さが第一湾曲凹
面の凹面最大深さより小である実用新案登録請求
の範囲第１項、第２項または第３項に記載の反射
スクリーン。 (5) 第一湾曲凹面の境界部表面を粗面化する微
細突部の８０％以上が１０μｍ以下の大きさを有
する実用新案登録請求の範囲第１項、第２項、第
３項または第４項に記載の反射スクリーン。 (6) 微細突部の大きさが１〜３０μｍで、その
８０％以上が１０μｍ以下である実用新案登録請
求の範囲第１項、第２項、第３項、第４項または
第５項に記載の反射スクリーン。 (7) 第一反射層の合成樹脂フイルムまたはシー
トが、部分架橋ポリ塩化ビニル樹脂を艶消し樹脂
として含有するポリ塩化ビニル樹脂からなる実用
新案登録請求の範囲第１項、第２項、第３項、第
４項、第５項または第６項に記載の反射スクリー
ン。 (8) 第二反射層に接する裏打層が白色合成樹脂
からなる実用新案登録請求の範囲第１項、第２項
、第３項、第４項、第５項、第６項または第７項
に記載の反射スクリーン。 (9) 裏打層が合成樹脂フイルムまたはシートか
らなる第一裏打層と繊維補強層を含む第二裏打層
からなる実用新案登録請求の範囲第１項、第２項
、第３項、第４項、第５項、第６項、第７項また
は第８項に記載の反射スクリーン。 (10) 第一反射層の単位湾曲面の凹部厚さがその
境界部の厚さより小である実用新案登録請求の範
囲第１項、第２項、第３項、第４項、第５項、第
６項、第７項、第８項または第９項に記載の反射
スクリーン。[Scope of Claim for Utility Model Registration] (1) From a synthetic resin film or sheet on the surface of which polygonal unit curved concave surfaces (first curved concave surfaces) are arranged regularly and in a close-packed state and contains a scaly pearl pigment. A first reflective layer consisting of a first reflective layer, a second reflective layer consisting of a synthetic resin film or sheet having a metallized layer, and a backing layer consisting of a synthetic resin film and/or a fiber reinforced layer are sequentially laminated and integrated; The width of the concave surface in the warp and latitude directions is 0.2 to 2 mm, and the width of the curved concave surface in the weft direction is l.
and the maximum depth d of the concave portion is l/d = 2 to 30, the boundaries of adjacent first curved concave surfaces are connected by curved surfaces, and the boundary surface of the curved concave surfaces has a rough surface due to a large number of fine protrusions. 2. A reflective screen characterized in that the first curved concave surface has roughness that is larger and gentler than the protrusion, and has a light receiving front brightness of 2 to 15 and a half value angle of 9 degrees or more. (2) The reflective screen according to claim 1, wherein the surface of the second reflective layer is substantially smooth. (3) The reflective screen according to claim 1 of the utility model registration claim, which has irregularities on the surface of the second reflective layer. (4) The surface of the second reflective layer has a curved concave surface (second curved concave surface) that approximately corresponds to the unit curved concave portion of the first reflective layer, and the maximum depth of the concave portion of the second curved concave surface is the concave surface of the first curved concave surface. The reflective screen according to claim 1, 2 or 3 of the utility model registration claim, which has a depth smaller than the maximum depth. (5) Claims 1, 2, 3 or 80% or more of the fine protrusions roughening the boundary surface of the first curved concave surface have a size of 10 μm or less Reflective screen according to item 4. (6) The size of the minute protrusions is 1 to 30 μm, and 80% or more of them are 10 μm or less. Reflective screen as described. (7) The synthetic resin film or sheet of the first reflective layer is made of a polyvinyl chloride resin containing a partially crosslinked polyvinyl chloride resin as a matte resin. Scope of Utility Model Registration Claims 1, 2, and 3 The reflective screen according to item 4, item 5, or item 6. (8) Utility model registration claim in which the backing layer in contact with the second reflective layer is made of white synthetic resin Claims 1, 2, 3, 4, 5, 6, or 7 Reflective screen as described in. (9) Scope of utility model registration claims in which the backing layer consists of a first backing layer made of a synthetic resin film or sheet and a second backing layer including a fiber-reinforced layer Paragraphs 1, 2, 3, and 4 , 5, 6, 7 or 8. (10) The thickness of the concave portion of the unit curved surface of the first reflective layer is smaller than the thickness of its boundary portion Claims 1, 2, 3, 4, and 5 , 6, 7, 8 or 9.