Composite disc media and method for making same
AssigneeOptical Disc Corporation
InventorJohn S. Winslow
Life of this patent
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Abstract
A composite disc in which a pattern of spaced glue dots is sandwiched between two disc halves. One of the disc halves is a dummy disc, and the other is a recordable optical disc. The pair of disc halves are joined together by depositing a pattern of spaced glue dots on the upper surface of one of the discs, positioning the second disc over the first, and contacting the lower surface of the second disc with the pattern of spaced glue dots. Preferably, the material of the glue dots is an ultraviolet curable contact cement, and, subsequent to the application of the pattern of dots on the dummy disc, and prior to joining the two disc halves, the glue dots are cured by being exposed to a source of ultraviolet light.
Claims13
A method for joining a pair of discs together, at least one of said discs being capable of containing optically readable information, said method comprising the steps of:
- providing a first disc having upper and lower flat facial surfaces;
- depositing a pattern of spaced glue dots over the upper surface of said first disc;
- providing a second disc having upper and lower flat facial surfaces;
- and
- joining the two discs together by contacting the lower surface of said second disc with said pattern of spaced glue dots on the upper surface of said first disc, thereby producing a resulting composite disc with said first and second discs being spaced apart and with a pattern of said spaced glue dots therebetween defining open paths between and around said glue dots.
A composite optical disc comprising:
- a first disc half having upper and lower flat facial surfaces;
- a second disc half having upper and lower flat facial surfaces;
- and
- a pattern of spaced glue dots between the upper surface of said first disc half and the lower surface of said second disc half, said glue dots providing a space between said first and second disc halves in the resulting composite disc, with open paths between and around said glue dots.
Dependencies are inferred from the claim text.