Driving mechanism for optical head of optical disc driver
AssigneeIndustrial Technology Research Institute
InventorsYung-Sung Lan, Ching-Hsing Huang, Chi-Lone Chang, Minsun Ouyang, Yu-Hsiu Chang, Tzuan-Ren Jeng, Jau-Jiu Ju
Life of this patent
Estimating the term…
Abstract
An optical head driving mechanism is applied to an optical disc driver that has a base plate, a pair of guide rods and an optical module movably mounted on the guide rods. The driving mechanism includes a base, a movable member, a piezo-actuator and at least a resilient member. The piezo-actuator and the movable member generate proceeding waves at the rim of the piezo-actuator and move the optical module along the guide rods when the piezo-actuator activates.
Claims11
An optical head driving mechanism, applied to an optical disc driver having a base plate, a pair of guide rods mounted on said base plate, and an optical module having an optical head movably mounted on said guide rods, comprising:
- a base, fixed to said base plate;
- a movable member, movably mounted on said base, and having a plurality of first connecting portions;
- a piezo-actuator, contacted with said optical module, and having a plurality of second connecting portions corresponding to said first connecting portions, said first and second connecting portions connect to each other and act as reflection points of wave transference so as to provide proceeding waves at rim of said piezo-actuator and move said optical module along said guide rods when said piezo-actuator activates;
- and
- at least a resilient member held by said base and said movable member for providing pressing force as suitable friction between said piezo-actuator and said optical module for transferring said proceeding waves.
Dependencies are inferred from the claim text.