公开(公告)号：US06943948B2

公开(公告)日：2005-09-13

申请号：US11034896

申请日：2005-01-13

申请人： Makoto Honda ,  Michihisa Ide ,  Hiroshi Sekiguchi

发明人： Makoto Honda ,  Michihisa Ide ,  Hiroshi Sekiguchi

IPC分类号： G02B3/00 ,  G02B3/08 ,  G03B21/62 ,  G03B21/625 ,  H04N5/74 ,  G03B21/60

CPC分类号： G03B21/625

摘要： A Fresnel lens sheet comprises a Fresnel lens on one surface thereof, wherein respective unit surfaces constructing the Fresnel lens sheet have rough surfaces. Since it has a rough surface, it enables suppressing the occurrence of moire, when making up a screen. The other Fresnel lens sheet comprises a Fresnel lens on one surface thereof, and a fly-eye lens or prisms as a regular concavities and convexities configuration for suppressing regular reflection on the surface thereof on a side opposite to the side having the Fresnel lens formed thereon. Since it has on its rear surface a fly-eye lens or a prism, it enables suppressing the occurrence of ghost image.

摘要翻译： 菲涅尔透镜片在其一个表面上包括菲涅尔透镜，其中构成菲涅尔透镜片的各个单元表面具有粗糙的表面。 由于它具有粗糙的表面，所以在组成屏幕时能够抑制莫尔条纹的发生。 另一个菲涅耳透镜片在其一个表面上包括菲涅耳透镜，以及作为常规凹凸结构的飞眼透镜或棱镜，用于在与形成有菲涅耳透镜的一侧相对的一侧的表面上抑制其反射的正则反射 。 由于它的后表面具有飞眼透镜或棱镜，因此能够抑制重影图像的发生。

公开(公告)号：US20050117213A1

公开(公告)日：2005-06-02

申请号：US11034896

申请日：2005-01-13

申请人： Makoto Honda ,  Michihisa Ide ,  Hiroshi Sekiguchi

发明人： Makoto Honda ,  Michihisa Ide ,  Hiroshi Sekiguchi

IPC分类号： G02B3/00 ,  G02B3/08 ,  G03B21/62 ,  G03B21/625 ,  H04N5/74 ,  G03B21/60

CPC分类号： G03B21/625

摘要： A Fresnel lens sheet comprises a Fresnel lens on one surface thereof, wherein respective unit surfaces constructing the Fresnel lens sheet have rough surfaces. Since it has a rough surface, it enables suppressing the occurrence of moire, when making up a screen. The other Fresnel lens sheet comprises a Fresnel lens on one surface thereof, and a fly-eye lens or prisms as a regular concavities and convexities configuration for suppressing regular reflection on the surface thereof on a side opposite to the side having the Fresnel lens formed thereon. Since it has on its rear surface a fly-eye lens or a prism, it enables suppressing the occurrence of ghost image.

公开(公告)号：US06798572B2

公开(公告)日：2004-09-28

申请号：US10680189

申请日：2003-10-08

申请人： Masanao Jinno ,  Masayoshi Miyauchi ,  Makoto Honda ,  Michihisa Ide

发明人： Masanao Jinno ,  Masayoshi Miyauchi ,  Makoto Honda ,  Michihisa Ide

IPC分类号： G03B2160

CPC分类号： B29C43/222 ,  B29C59/04 ,  B29C2043/463 ,  B29D11/00278 ,  B29L2011/005 ,  G03B21/56

摘要： A transmission screen sheet which is given a large number of lens-like forms on the surface like ridges and has a thickness of 0.1 to 2.0 mm, wherein (i) the sheet is formed from a thermoplastic resin whose inclination (W) obtained from the relationship between melt viscosity (Y) and load (X) satisfies the following expression (1) when the melt viscosity is in the range of 102 to 103 Pa·s, and (i) the lens-like forms change in height substantially non-stepwise from the center portion or a portion near the center portion to the end portions of the sheet in a direction perpendicular to the ridges: 2×10−2≦W≦6×10−2  (1) wherein W is represented by the following equation: W=−(log Y/X) wherein X is a load (MPa) and Y is the melt viscosity (Pa·s) of the resin.

摘要翻译： 一种在脊状表面上具有大量透镜状形状的透光性筛板，其厚度为0.1〜2.0mm，其特征在于，（i）所述片材由热塑性树脂形成，所述热塑性树脂的倾斜度（W）由 熔体粘度（Y）和载荷（X）之间的关系满足下列表达式（1），当熔体粘度在10 -2至10 3 Pa.s范围内时，（i）透镜状形式 从垂直于脊的方向的中心部分或靠近中心部分的部分到片的端部基本上非逐步地改变高度：其中W由下式表示：其中X是负载（MPa） Y是树脂的熔融粘度（Pa.s）。