Optical disk manufacturing process
AssigneeDel Mar Avionics
InventorDavid P. Gregg
Life of this patent
Estimating the term…
Abstract
A process for manufacture of a second surface optically recordable disk is disclosed. A reflective sheet of aluminum, flow process produced by precipitation of a layer of aluminum from gasified triisobutyl aluminum onto a layer of molten indium, is mated with a polymer substratum sheet. In completion of the process, an optically active layer which is applied over the reflective layer is embossed with an optically transparent polycarbonate, protective cover, the mating surface of which, may be, pregrooved and coded with data relative to address and sector codes. Covers with bonded laminae are then successively severed from the lamina sheet to yield independent second surface optically recordable media.
Claims12
A laminating flow process for manufacture of second surface optically recordable media, comprising the steps of:
- providing a continuous flow of substratum;
- covering said substratum with a first adhesive lamina;
- applying a continuous flow of an optically reflective lamina to said first adhesive lamina;
- covering said reflective lamina with an optically active lamina to form a first surface optically recordable composite lamina;
- covering said active lamina with an optically transparent, second adhesive lamina;
- sequentially applying molded, optically transparent, ultra violet inhibiting covers to said second adhesive lamina to form a second surface optically recordable lamina, comprising multiple second surface optically recordable media;
- compressing and embossing each said cover into said active lamina;
- and
- severing said multiple second surface optically recordable media from said composite lamina to form individual second surface otpically recordable media.
Laminating flow apparatus for manufacture of second surface optically recordable media, comprising:
- means for providing a continuous flow of a substratum lamina having a mating side and an external side;
- means for providing a continuous flow of an optically reflective lamina;
- means, coupling said substratum lamina to said reflective lamina, for continuously and uniformly bonding and uniting said reflective lamina with said mating side of said substratum lamina;
- means, coupled to said uniting means, for uniformly covering said reflective lamina with an optically active lamina to form a first surface optically recordable composite lamina;
- means, coupled to said optically active covering means, for sequentially bonding and embossing individual optically transparent ultra violet inhibiting covers to said first surface optically recordable composite lamina to form multiple second surface optically recordable media;
- and
- means, coupled to said embossing means, for sequentially severing said second surface optically recordable media to form individual second surface optically recordable media.
Dependencies are inferred from the claim text.