Process for efficient light extraction from light emitting...

Details Process for efficient light extraction from light emitting... Process for efficient light extraction from light emitting...

2005-12-27

2005-12-27

Ulah, Akm Enayet (Department: 2874)

Optical waveguides

Integrated optical circuit

C385S129000, C257S099000, C427S164000

Reexamination Certificate

active

06980710

ABSTRACT:
The present invention claims a unique way to pattern an optical microstructure immediately on top of a mass produced light-emitting device, such as a light emitting diode (LED), a vertical cavity surface emitting laser (VCSEL) or a photo detector, for the purpose of efficient coupling of light to or from the active region of the light-emitting device. The invention addresses the need to effectively and efficiently extract light from the light-emitting optoelectronic device. Finally, the invention allows for the optical microstructure to be deposited and patterned directly over the light-emitting device contained on a suitable substrate, such as a wafer.

REFERENCES:
patent: 5480687 (1996-01-01), Heming et al.
patent: 5726462 (1998-03-01), Spahn et al.
patent: 6150668 (2000-11-01), Bao et al.
patent: 6258618 (2001-07-01), Lester

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