发明名称 |
Triangular pyramid type cube corner retroreflection article, and its manufacturing method |
摘要 |
The present invention relates to a triangular pyramidal cube corner retroreflective article and a producing method thereof. In the triangular pyramidal cube corner retroreflective article, a triangular pyramidal cube corner retroreflective element pair group is disposed in a closest-packed fashion on a common plane defined by three base lines, and the each of retroreflective elements in a pair having one base line (A-B) shared by the retroreflective elements in the pair. The triangular pyramidal cube corner retroreflective article includes a first element pair group, in which two interior angles (alpha=∠BAC and beta=∠ABC) formed by the shared base line of the element pair and two other base lines are different from each other and the element pair is line-symmetrically disposed in relation to the shared base line (A-B); and a second element pair group, in which the element pair is congruent to a line-symmetrical shape to the first element pair in relation to a line segment connecting vertexes of the base planes.
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申请公布号 |
US8459806(B2) |
申请公布日期 |
2013.06.11 |
申请号 |
US20070438048 |
申请日期 |
2007.08.22 |
申请人 |
MIMURA IKUO;HAYASHI CHIHIRO;AMEMIYA KEIJI;NIPPON CARBIDE KOGYO KABUSHIKI KAISHA |
发明人 |
MIMURA IKUO;HAYASHI CHIHIRO;AMEMIYA KEIJI |
分类号 |
G02B5/124 |
主分类号 |
G02B5/124 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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