发明名称 |
IMPROVED OPTICAL TAPE END SENSING ARRANGEMENT FOR MAGNETIC TAPE CASSETTE |
摘要 |
A tape casette arrangement includes structures formed integrally with the casssette halves or simply fitted into the light transmission apertures. Specific embodiments of the invention include light polarizing elements which are fitted into apertures formed in the sides of the cassette, corrugations on the interior of the cassette proximate the apertures, and shielding walls which are located to block light and in particular that light which tends to enter through a large window provided in the upper surface of the cassette and through which the status of the tape is visible. |
申请公布号 |
EP0286355(B1) |
申请公布日期 |
1992.06.17 |
申请号 |
EP19880303016 |
申请日期 |
1988.04.05 |
申请人 |
SONY CORPORATION |
发明人 |
URAYAMA, KIYOSHI SONY CORPORATION;SATO, SHINYA SONY CORPORATION;IWAHASHI, YUJI SONY CORPORATION |
分类号 |
G11B23/30;G11B15/18;G11B23/04;G11B23/087 |
主分类号 |
G11B23/30 |
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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