Lens and light source module using same

• Main Authors: CHEN BAIZHOU, HU CHAOJING, DAI FENGYUAN
• Format: Patent
• Language: English
• Published: 11.02.2015
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; LIGHTING; MECHANICAL ENGINEERING; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; WEAPONS

The invention relates to a lens, and the lens is used for regulating light rays emitted by a luminescent diode. The lens comprises an in-light surface, an out-light surface and a bottom surface, wherein the in-light surface is sunken to the inner part of the lens from the bottom surface; the out-light surface is positioned above the in-light surface and comprises a concave surface and convex surfaces positioned on both sides of the concave surface; the out-light surface is changed in an undulate manner in a first direction, and is unchanged in a second direction which is perpendicular to the first direction; after being regulated by the lens, light types generated by the luminescent diode are lengthened in the first direction. The invention also provides a light source module using the lens.