U.S. Philips Corporation

Martinus M Sens

Hendricus F Van Tongeren

Petrus J Kivits

Theodorus C Bertens

Johannes T Thijssen

Rene Dufour

A laminated product comprising substrate (7) and a thin layer (11, 12) of a dielectric compound formed from the oxide or the suboxide of gallium antimonide or indium antimonide, an optical information carrier containing such a thin layer, whereby said thin layer, dependent upon the oxygen content, may function as a recording layer 11 or as a transparent distance layer 12, as well as the suboxide of gallium antimonide or indium antimonide used in the laminated product.

Laminated product, compound used in the laminated product and optical

An optical recording element comprising an assembly of two parallel substrate plates made from a transparent synthetic resin and each comprising on their facing sides a recording layer which comprises a guide track in the form of a spiral-like groove, and a foil of sythetic resin which with both major surfaces engages or substantially engages the ridges of the recording layers present between the groove turns.

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Eindhoven, Netherlands

Martinus M Sens