Parallel-processing, optical distance-measuring device

US6661446B2 · kind B2 · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Bernard Beier · Ladenburg, DE
• Bernd Vosseler · Heidelberg, DE

Key dates

• Filing date: Sep 4, 2001
• Grant date: Dec 9, 2003
• Expiry date: Sep 4, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B7/28
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A device determines the positional deviation of n points (P) from their reference positions using a source of electromagnetic radiation (1), imaging optics (2, 4, 9), and a photosensitive detector (10), which converts the positional information into information on intensity. Simultaneous or concurrent in time n signals are produced by the detector (10), each of the n signals being uniquely assigned to one of the reflection points (P). The generated signals can be used to control an autofocusing device or to control the intensity of light sources in devices for imaging printing forms.