Opticscan arrangement for optical character recognition systems

摘要: An optical arrangement for character recognition systems utilizes the same path both illuminating text and projecting onto an array of photosensitive elements. A low power laser beam cross-section slightly larger than a unit vertical slice is projected by prism through lens to scanning mirror which reflects sequentially illuminate individual slices. Each illuminated reflected linear The focus varied in synchronization with scan correct changes distance between characters at different angles. page oriented slight angle relative axis eliminate specular reflection. resultant skew created as function compensated rotating about angle.