High resolution recording medium and method for producing same

US4522862A · kind A · utility

Assignee

• JOHANNES HEIDENHAIN GmbH · DE

Inventors

• Erich Bayer · Trostberg, DE
• Anton Beckerbauer · Nußdorf, DE
• Georg Flatscher · Schneizlreuth, DE
• Martin Ullrich · Leverkusen, DE

Key dates

• Filing date: Nov 30, 1982
• Grant date: Jun 11, 1985
• Expiry date: Nov 30, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24917
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A recording medium with a multicolor high resolution pattern created by layer packs. Pattern-forming layers of the layer packs are successively applied by photolithographic means in a sequence corresponding to a color of the high resolution pattern. The pattern-forming layers of the layer packs are separate from one another on the substrate of the recording medium. The process for producing the recording medium includes applying a photoresist layer to a substrate and developing the photoresist. Pattern-forming layers are successively applied over the whole surface of the substrate in a sequence corresponding to a color. The remaining photoresist and the layers overlying it are removed to leave a sequence of pattern-forming layers on the substrate separate from any adjacent pattern-forming layers.