Apparatus and method of forming and projecting high precision optical images

US4818098A · kind A · utility

Assignee

• SHARP KABUSHIKI KAISHA · JP

Inventors

• Frederic J. Kahn · Palo Alto, US
• Paul N. Kendrick · Sunnyvale, US
• Jerry Leff · Saratoga, US
• Linden J. Livoni · Los Gatos, US
• Bryan E. Loucks · Los Altos Hills, US
• David E. Stepner · Cupertino, US
• Kenneth G. Witte · San Jose, US

Key dates

• Filing date: May 9, 1986
• Grant date: Apr 4, 1989
• Expiry date: May 9, 2006

Classification

• Technology area (CPC G): Physics
• CPC primary: G03B21/00
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An apparatus for projecting high precision optical images with a selective heating source, advantageously a laser, on a writable, erasable, editable electronic slide and simultaneously or sequentially projecting the images in registration, onto a receiving surface such as a projection screen or photosensitive material, in the former case for the purpose of displaying the projected image and in the latter case for the purpose of creating a hard copy of the projected image.