Optical lens assembly

Abstract

An optical lens assembly is produced by an injection-compression molding process. The optical lens assembly includes a lens body and an injection-molded structure. The lens body includes a first lens surface and a second lens surface opposed to the first lens surface. The lens body is divided into an optically effective zone and an optically ineffective zone. The injection-molded structure has at least one gate land in response to the injection-compression molding process. At least a portion of the optically ineffective zone of the lens body is covered by the injection-molded structure, and the injection-molded structure is assembled with and positioned by an external structure. Each of the first lens surface and the second lens surface is one of a multi-aperture lens surface, a lenticular lens surface, an aspheric lens surface, a flat lens surface and a freeform lens surface.

What is claimed is: 
     
         1 . An optical lens assembly, comprising:
 a lens body comprising a first lens surface and a second lens surface opposed to the first lens surface , wherein the lens body is divided into an optically effective zone and an optically ineffective zone; and   an injection-molded structure fabricated by a injection-compression process, and having at least one gate land in response to the injection-compression molding process, wherein at least a portion of the optically ineffective zone of the lens body is covered by the injection-molded structure, and the injection-molded structure is assembled with and positioned by an external structure,   wherein the first lens surface is one of a multi-aperture lens surface, a lenticular lens surface, an aspheric lens surface, a flat lens surface and a freeform lens surface, and the second lens surface is one of a multi-aperture lens surface, a lenticular lens surface, an aspheric lens surface, a flat lens surface and a free form lens surface.   
     
     
         2 . The optical lens assembly according to  claim 1 , wherein the injection-molded structure is further subjected to an ultraviolet-assisted curing process. 
     
     
         3 . The optical lens assembly according to  claim 1 , wherein the injection-molded structure has two gate lands in response to the injection-compression molding process, and the two gate lands are located at the same side of the injection-molded structure or the two gate lands are respectively located at two opposite sides of the injection-molded structure. 
     
     
         4 . The optical lens assembly according to  claim 1 , wherein if the injection-molded structure is a rectangular structure with four gate lands in response to the injection-compression molding process, the four gate lands are respectively located at four lateral sides of the injection-molded structure, wherein if the injection-molded structure is a rectangular structure with six gate lands in response to the injection-compression molding process, four of the six gate lands are located at two long sides of the injection-molded structure and two of the six gate lands are located at two short sides of the injection-molded structure. 
     
     
         5 . The optical lens assembly according to  claim 1 , wherein both of the first lens surface and the second lens surface of the lens body are the multi-aperture lens surfaces. 
     
     
         6 . The optical lens assembly according to  claim 5 , wherein the lens body has an optical axis, and the multi-aperture lens surfaces are asymmetric with respect to the optical axis. 
     
     
         7 . The optical lens assembly according to  claim 5 , wherein multiple orientations of the multi-aperture lens surface are asymmetric with respect to the lens body. 
     
     
         8 . The optical lens assembly according to  claim 5 , wherein aperture forms of the multi-aperture lens surface are selected from at least two of different boresight viewing directions, orientations, clear apertures, edge thicknesses and appearances. 
     
     
         9 . The optical lens assembly according to  claim 5 , wherein microstructures of the multi-aperture lens surface are symmetrically distributed with respect to an orientation of the at least one gate land. 
     
     
         10 . The optical lens assembly according to  claim 1 , wherein the first lens surface is the multi-aperture lens surface, and the second lens surface is the lenticular lens surface. 
     
     
         11 . The optical lens assembly according to  claim 10 , wherein the lens body has an optical axis, and the multi-aperture lens surface and the lenticular lens surface are asymmetric with respect to the optical axis. 
     
     
         12 . The optical lens assembly according to  claim 10 , wherein multiple orientations of the lenticular lens surface are asymmetric with respect to the lens body. 
     
     
         13 . The optical lens assembly according to  claim 10 , wherein the lenticular lens surface comprises plural micro lenticular lenses, and the plural micro lenticular lenses have different orientations, boresight viewing directions, pitches, depths and/or appearances. 
     
     
         14 . The optical lens assembly according to  claim 10 , wherein aperture forms of the multi-aperture lens surface are selected from at least two of different orientations, clear apertures, edge thicknesses and appeared surface outlooks. 
     
     
         15 . The optical lens assembly according to  claim 10 , wherein microstructures of the multi-aperture lens surface and the lenticular lens surface are symmetrically distributed with respect to an orientation of the at least one gate land. 
     
     
         16 . The optical lens assembly according to  claim 1 , wherein a central thickness of the lens body is not smaller than one fifth of a corresponding diameter of a clear aperture of the lens body. 
     
     
         17 . The optical lens assembly according to  claim 1 , wherein both of the first lens surface and the second lens surface of the lens body are the aspheric lens surfaces, and the aspheric lens surfaces are asymmetric with respect to an optical axis of the lens body, or wherein both of the first lens surface and the second lens surface of the lens body are the free form lens surfaces, and the free form lens surfaces are asymmetric with respect to an optical axis of the lens body. 
     
     
         18 . The optical lens assembly according to  claim 17 , wherein an edge thickness of the lens body is not smaller than one fifth of the corresponding diameter of a clear aperture of the lens body, or the edge thickness of the lens body is not smaller than one tenth of a corresponding thickness of the clear aperture of the lens body. 
     
     
         19 . The optical lens assembly according to  claim 17 , wherein microstructures of the first lens surface and the second lens surface are symmetrically distributed with respect to an orientation of the at least one gate land.