Object lens carrier structure for optical read-write head

Abstract

The invention discloses an objective carrier structure in the optical reading head, which consists of object lens and sheet plate, wherein the hole is opened on the sheet plate; the lens object is set in the hole to make light pass; the conductive coil is set on the sheet plate surface, which generates magnetic field to influence the current and make the objective carrier structure move.

Description

technical field [0001] The invention relates to an objective lens carrier device, especially an objective lens carrier device used in an optical read-write head. Background technique [0002] Because optical discs are widely used in the market, the optical disc drive for reading and writing optical discs is a common storage medium reading and writing device. One of the core components in the optical disc drive is the optical pickup head. ). [0003] see figure 1 , figure 1 is a schematic diagram of a prior art optical read / write head 2 . The optical read-write head 2 can be moved in the optical disc drive, under the optical disc to read and write data in different positions on the optical disc. The optical read-write head 2 further includes an objective lens carrier device 4 and two magnetic field generating devices 6 adjacently disposed on opposite sides of the objective lens carrier device 4 . The objective lens carrier device 4 is composed of a square objective lens ...

AI Technical Summary

Problems solved by technology

[0008] In addition, in the general production process, it is necessary to use a winding machine to wind the enameled wire on the objective lens carrier device, and the quality of the enameled wire winding will directly affect the interaction between the coil and the magnetic field; and with the trend of miniaturization, the winding accuracy Under the quality requirements, the production method of winding enameled wire requires extremely high production cost and construction period

Images