| 摘要 |
PCT No. PCT/GB96/00036 Sec. 371 Date Nov. 17, 1997 Sec. 102(e) Date Nov. 17, 1997 PCT Filed Jan. 10, 1996 PCT Pub. No. WO96/21928 PCT Pub. Date Jul. 18, 1996A semi-permanent enclosure for an optical data storage device 60 comprises a first film 50 dimensioned to overlie the read surface of device 60 and a second film 30 dimensioned to overlie the non-read surface. The enclosure includes rim means 20, 40 having an L-shaped cross-section extending around the periphery of device 60. Film 50 may have optical couplant on the surface thereof destined for attachment to device 60 in use. The optical couplant preferably has a refractive index compatible with that of device 60 to minimise losses and distortion of signals. Optical couplant may also be used with second film 30. The optical couplant may be a material capable of flowing into minor defects on the surface of device 60. This allows minor blemishes to repaired so that stored data is not compromised. Alternatively, the optical couplant may be a solid malleable material interposed between device 60 and the film(s) or may comprise the film itself.
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