Optical lens and light-emitting module using the same

An optical lens for modulating light generated by a surface-emitting laser chip is disclosed. The optical lens includes a main body with a recess. A bottom surface of the recess is configured with a light-entering curved face, and an outer surface of the recess opposite to the bottom surface is conf...

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Bibliographic Details
Main Authors LAI, LI-HUNG, LAI, LI-WEN, HSU, LI-MIN, CHEN, YUNG-TAI, LIU, FENG-PIN, CHANG, SHU-WEN
Format Patent
LanguageChinese
English
Published 16.12.2012
Subjects
BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:An optical lens for modulating light generated by a surface-emitting laser chip is disclosed. The optical lens includes a main body with a recess. A bottom surface of the recess is configured with a light-entering curved face, and an outer surface of the recess opposite to the bottom surface is configured with a light-existing curved face. Here, the recess is for accommodating the surface-emitting laser chip, and the surface-emitting laser chip is arranged a distance from the light-entering curved face. A light-emitting module adopting the aforementioned optical lens is also provided. The aforementioned optical lens would cause the incident light to first diverge and then converge at a predetermined angle, so that the output illuminating light is more uniform and the projecting distance is extended.
Bibliography:Application Number: TW20110120525