Method of making holographic storage medium

US8728685B2 · kind B2 · utility

Assignee

• Sabic Innovative Plastics B.V. · NL

Inventors

• Andrew Arthur Paul Burns · Niskayuna, US
• Sumeet Jain · Albany, US
• Pradeep Jeevaji Nadkarni · Bengaluru, IN
• Shantaram Narayan Naik · Savanuru, IN
• Arunkumar Natarajan · Schenectady, US
• Kiran Puthamane · Jamkhed, IN
• Michael Teruki Takemori · Rexford, US
• Vinodkumar Vasudevan · Thrissur, IN

Key dates

• Filing date: Feb 16, 2011
• Grant date: May 20, 2014
• Expiry date: Apr 19, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G03H2270/21
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Articles for recording a holographic image are described. The articles include a holographic recording medium having a plurality of surfaces, having a transparent polymeric binder and a photochemically active dye, the holographic recording medium having a holographic image recorded therein formed by exposed areas of the photochemically active dye and unexposed areas of the photochemically active dye; and a first light-blocking layer or material over a first surface of the holographic recording medium from which surface the holographic image is viewed, the light blocking layer or material absorbing light in the wavelength range to which the photochemically active dye is sensitive and allowing transmission of light in a different wavelength range for viewing the holographic image.