| 发明名称 |
INDICATING THE PASSING OF A PROJECTILE THROUGH AN AREA IN SPACE |
| 摘要 |
<p>A method of and apparatus for indicating the passing of a projectile through an area in space comprising inciding the whole of said area with a projectile light beam and detecting a reflection of said beam off a projectile passing through said area resulting from incidence of said beam thereon thereby determining that said projectile passed through said area.</p> |
| 申请公布号 |
CA1010973(A) |
申请公布日期 |
1977.05.24 |
| 申请号 |
CA19720132642 |
申请日期 |
1972.01.18 |
| 申请人 |
AUSTRALASIAN TRAINING AIDS PTY. LIMITED |
发明人 |
KNIGHT, LINDSAY C.;FINCH, COLIN M.;WALDEN, NOEL H.F.;RACZ, GEORGE |
| 分类号 |
F41J5/00;F41J5/02;F41J5/12 |
主分类号 |
F41J5/00 |
| 代理机构 |
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代理人 |
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