Louis-Marie H Cobben

Title: Louis-Marie H Cobben: Innovator in Optical Scanning Technology

Introduction

Louis-Marie H Cobben is a notable inventor based in Eindhoven, Netherlands. He has made significant contributions to the field of optical scanning technology, holding 2 patents that showcase his innovative approach to information retrieval and processing.

Latest Patents

Cobben's latest patents include an "Optical record carrier scanning apparatus providing optoelectronic" and an "Optical scanning apparatus." The first patent describes a system that utilizes a tunable radiation source to produce different wavelengths of a radiation beam. This system includes an optical assembly that forms the radiation beam into a scanning spot, allowing for precise tracking of information tracks on a record carrier. The optical assembly employs a diffraction grating to create a selected diffraction order sub-beam, enabling variable scanning spot positioning through wavelength adjustments. This technology facilitates the generation of a tracking error signal, ensuring the scanning spot remains centered on the information track.

The second patent outlines an apparatus designed for optically scanning an information surface by moving the surface relative to a beam. This apparatus consists of a radiation source, a collimator lens, and an objective for focusing the beam to a spot in the information plane. Notably, the design allows for a reduction in the height of the apparatus and the conversion of an asymmetrical beam into a symmetrical one by utilizing a reflective diffraction grating positioned between the collimator lens and the objective.

Career Highlights

Louis-Marie H Cobben is associated with U.S. Philips Corporation, where he has contributed to advancements in optical technologies. His work has been instrumental in enhancing the efficiency and effectiveness of optical scanning systems.

Collaborations

Cobben has collaborated with fellow inventor Willem G Opheij, further enriching the field of optical technology through their combined expertise.

Conclusion

Louis-Marie H Cobben's innovative patents and contributions to optical scanning technology highlight his role as a significant figure in the field. His work continues to influence advancements in information processing and retrieval systems.