Patent ID: 6785063
Filing Date: 2004-08-31
Classification: G11B

Abstract:
An objective lens holding apparatus for holding an objective lens of an optical system of an optical pick-up head, comprising:an objective lens holder having an access hole for holding the objective lens; an elastic supporting arm anchor dock being stationary relative to a vertical focusing direction; and an elastic upper supporting portion and an elastic lower supporting portion, relative to the vertical focusing direction and corresponding to each other and having respectively one end connected to the objective lens holder and another end connected to the elastic supporting arm anchor dock, the upper supporting portion and the lower supporting portion being extendable to cross with each other at a locating beyond the elastic supporting arm anchor dock, wherein the upper supporting portion and the lower supporting portion have respectively a plurality of parallel supporting arms, each of the supporting arms of the upper supporting portion corresponding to one of the supporting arms of the lower supporting portion and the corresponding supporting arms of the upper supporting and the lower supporting portion being extendable to cross with each other at a location beyond the elastic supporting arm anchor dock, and the supporting arm anchor dock including a base seat and an elastic element, the elastic element being located on the base seat on one side and connected to the upper and the lower supporting portion on the opposite side of the elastic element.