Marker apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 3, 1996
Grant Date -
N/A
app pub date -
Sep 14, 1995
filing date -
Sep 27, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A marker apparatus including a retroreflector constituted by three reflective surfaces arranged on three surfaces of a trigonal pyramid and a light source disposed on an optical axis of the retroreflector. A lens is provided in front of the retroreflector and a condensing lens is formed on the lens for condensing light emitting from the light source. A plurality of retroreflectors are provided continuously on the same plane in such a manner that directions of the three reflective surfaces, which constitute each of the retroreflector, are different from one another, and a front view of the retroreflector is regular hexagonal. A wall surface is formed between the three reflective surfaces constituting each retroreflector so that the wall surface directed in parallel with an optical axis.
First Claim
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International Classification(s)
Cited Art Landscape
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