Optical reading device without an objective

Abstract

Abstract A device for optical reading of a document having a transparent support comprises in particular: - a transparent flat stage (2) for supporting the document (3); - an optical reading head (7) comprising a sensor (10), of the CD type for example, advantageously linear, and a pneumatic shoe (9) sliding on the stage (2), the said sensor being housed inside a recess (12) of the said shoe opening onto its bearing surface; and, - a lighting system (20, 15, 16, 17) for lighting at least part of the scene (3), the optical reading member (7) and the lighting system (15, 16, 17) being disposed on either side of the stage (2). <??>This device has a very high acquisition rate, is self-regulating and is of reduced cost relative to the embodiments of the prior art. Its enlargement is constant and equal to one. <IMAGE>

Inventors

• 👤 Didier Primat
• 👤 Jacques Beauvois
• 👤 Frédéric Basset
• 👤 Thierry Bouin
• 👤 Jean-Marie Billiotte

Bibliographic Details