PURPOSE: To provide the retroreflection sheet which is useful for the marking, etc., of a signs such as a road sign and a construction sign, the license plate, etc., of a vehicle such as an automobile and a motorcycle, safety materials, etc., such as clothes and a life jacket, or a sign board, a vehicle, etc.
CONSTITUTION: In the night retroreflection sheet which consists of a light- transmissive top film 1, a base film 3, and a connection wall which connects both the film parts partially while a gap is left and also has retroreflective elements arranged uniformly and closely over the entire surfaces of the top film 1 and/or base film 3 a night luminous material 6 is included in the connection wall 4 and/or base film 3. This sheet has superior night visibility by luminescence even in the dark in the night as well as superior visibility by the reflection of the sunshine, etc., in the daytime and superior visibility by the retroreflection of the headlights, etc., of an automobile in the night.
TANAKA OSAMU
YOSHIZAWA MASAKI
