Luminous indicating device
AssigneesSho-Bond Construction Co., Ltd., Hitachi Heating Appliances Co., Ltd.
InventorsHisae Takahashi, Tatsuro Yoshinaga, Akio Mitomo
Life of this patent
Estimating the term…
Abstract
A luminous indicating device and comprising at least one luminous block adapted to be buried in a road surface so that a radiating surface thereof is flush with the road surface. The luminous block is formed of a composite material block and at least one luminous element which is formed of a transparent material block and a light source buried at one end portion of the block to radiate light from the other end surface of the block. The luminous block is buried in the composite material block so that the other end surface of said transparent material block is flush with a top surface of the composite material block.
Claims4
A luminous indicating device comprising at least one luminous block which is adapted to be buried in a road surface so that an upper radiating surface thereof is flush with the road surface, said luminous block being formed as an abradable composite material block including at least one luminous element formed of an abradable light passable material block, at least one high intensity light emitting diode disposed at one end surface of the light passable material block for radiating light through the other end surface of the light passable material block, said light passable material block being disposed in said composite material block so that the other end surface of the light passage material block is disposed flush with a top surface of said composite material block, and wherein said light passable material block is made of an acrylic resin or vinyl chloride resin and said composite material block is made of a resin mortar.
Dependencies are inferred from the claim text.