Lens mold and method for manufacturing lenses utilizing the lens mold

摘要

A lens mold includes a bottom mold and a top mold joining with the bottom mold. The bottom mold defines a first through hole. The top mold defines a second through hole. The lens mold further includes a bottom mold core and a top mold core. The bottom mold core is detachably received in the first through hole of the bottom mold. The top mold core is detachably received in the second through hole of the top mold. A plurality of microstructures is formed on a top surface of the bottom mold core near the top mold core to form a plurality of microstructures on a bottom surface of a lens formed by the lens mold. A method for manufacturing the lens with the lens mold is also provided. The lens is used as a secondary optical element for an LED.

主权项

1. A lens mold for manufacturing a lens for use as a secondary optical element for an LED (light emitting diode), comprising:
a bottom mold defining a first through hole; a top mold matching with the bottom mold, the top mold defining a second through hole; a bottom mold core detachably received in the first through hole of the bottom mold; a top mold core detachably received in the second through hole of the top mold; wherein a plurality of microstructures is formed on a top surface of the bottom mold core near the top mold core, the microstructures being configured for forming a plurality of microstructures on a bottom surface of the lens formed by the lens mold; wherein the bottom mold core is spaced from the top mold core, the bottom mold core comprising a frosting mold core, the microstructures being formed on a top surface of the frosting mold core; and wherein the bottom mold core further comprises an optical mold core, a positioning hole being defined at a center of the frosting mold core, the optical mold core being detachably arranged in the positioning hole, a part of the optical mold core near the top mold core being extended upwardly beyond the top surface of the frosting mold core.