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RECORDING DISC or RECORDING DISCS
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Technical Examples
- An optical information medium comprises a pair of discs which are bonded to each other, an optical recording layer provided on at least one of the discs, and a reflecting layer formed on an upper side of the optical recording layer. The optical information medium further includes an adhesive for bonding the pair of discs provided on the reflecting layer, wherein the adhesive has a thickness ranging from 10 to 80 ?m. A protecting layer is provided on the upper side of the reflecting layer wherein the pair of discs may be bonded by the protecting layer. The optical recording layer, reflecting layer and protecting layer may be directly sequentially provided on the disc but another substrate layer may be inserted between these layers. There is employed, as the adhesive, those including a reactive curing resin or a hot melt material, and it is preferable that the shrinkage rate of the adhesive be less than 15%.
- A disc storage unit includes a case, a tray supported by the case and configured to support an array of discs in respective parallel vertical planes across which respective coaxial axes of the discs pass horizontally. There is a disc-raising mechanism having a finger activatable to lift one of the discs from the tray within its respective plane to thereby render that disc non-coaxial with other discs that might be supported by the tray. The storage unit also includes an indexing mechanism that is configured to cause the disc-raising mechanism to raise others of the discs in a like manner. This enables labels of the raised discs to be viewed for selection by a user.
- The sheet shredder includes a cutter block pair equipped with plural cutter discs arranged in parallel with each other at a specified distance, cutting units to cut sheets by rotating the cutter discs of the cutter block pair in the different directions respectively, guide plates to guide cut pieces of sheets cut by the cutter discs in the specified direction, and grooves provided at the sides opposite to the cutter discs of the guide plates to lead out stickum adhered to the cutter discs or the guide plates pursuant to the sheet cutting operation.
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