Patent ID: 7800838

Claim:
A rectangular optical glass lens formed by cutting of a lens sheet having a plurality of lens arrays produced by a rectangular glass blank heated and pressured between an upper mold and a lower mold of a multi-cavity mold comprising: an aspherical first optical surface disposed on one side of the lens; an aspherical second optical surface disposed on the opposite side of the first optical surface; and a rectangle circumference arranged surrounding the first optical surface and the second optical surface; wherein the first optical surface and the second optical surface are optical areas of the rectangular optical glass lens; the rectangle circumference is non-optical area and rectangular with four corners; wherein the rectangle circumference are formed by cutting of the lens sheet; wherein at least one surface of the rectangle circumference further comprises at least one groove which is formed under the surface of the rectangle circumference and does not protrude from the surface of the rectangle circumference and is formed and molded on the lens sheet due to a protruding part for exhausting air arranged surrounding a cavity of the upper or lower mold.