Optical lens head, camera module and assembling method therefor

An assembly method of an optical lens assembly, comprising:

• (a) sequentially stacked a plurality of optical lenses in an optical axis direction to form a lens subassembly, wherein each of the optical lenses comprises a connecting portion, by which the optical lenses are overlap with each other in the optical axis direction;
• (b) forming a light beam entering hole on one of the optical lenses in the lens subassembly;
• and
• (c) packaging the optical lens assembly, and
• (c1) disposing the lens subassembly on a top of a lens holder, wherein a lowermost optical lens in the lens subassembly is directly connected to the top of the lens holder through a connecting portion provided thereon,
• wherein, each of the optical lenses is directly connected to an adjacent lens of the lenses by its connecting portion, thereby forming the optical lens assembly without any spacers and lens barrels,
• wherein in the method, a connecting portion of a first optical lens is formed by coating a black adhesive on a surface of the first optical lens and is adapted to embed and assembly the optical lenses, the first optical lens being any one of the optical lenses,
• wherein in the step (a), at least one of the optical lenses is an adjustable lens, and an assembly position of the adjustable lens is suitable to be adjusted in at least one direction, wherein the step (c), after an optical center of the optical lens is corrected through the adjustable lens, adhesive dispensing and curing are performed on the adjustable lens to fix the adjustable lens, thereby completing the assembly of the optical lens assembly.