发明名称 |
Protective construction for optical disk units |
摘要 |
An optical disk unit, of the kind having a record element and a flexible cover sheet that are attached around an outer periphery in a manner providing an outer spacing and a generally enclosed inter-space therebetween, has an improved construction which significantly reduces the likelihood of contact between the record element and cover sheet. Central spacing means provide a central sheet-to-element spacing that is significantly larger than said outer spacing and vent means, into and out of the inter-space cause a reduction in the spacing between the record portion of the element and the cover sheet during write/read operation. The air flow through the vent means also reduces the formation of visible debris in the enclosed record element/cover sheet inter-space.
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申请公布号 |
US4539573(A) |
申请公布日期 |
1985.09.03 |
申请号 |
US19830507447 |
申请日期 |
1983.06.24 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
MARCHANT, ALAN B.;HOWE, DENNIS G. |
分类号 |
G11B23/00;G11B7/24;G11B23/033;G11B23/50;(IPC1-7):G01D15/32;G11B5/52 |
主分类号 |
G11B23/00 |
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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