Dip angle regulator for torquer of optical reading head

Abstract

The inclination adjustment device of the torque device of the optical reading head of the present invention comprises a base, a torque device base, and a spring adjustment screw. Groove, positioning plate, supporting plate, and wing plate on the base of the torquer. There is a positioning column jack and a positioning adjustment screw hole on the positioning plate. There are spherical grooves on the supporting plate and adjusting screw holes on the wing plate; the spherical surface on the base The boss and the positioning column are matched with the positioning column socket and the spherical groove on the torquer seat respectively, and the adjusting screw passes through the positioning adjusting screw hole, the adjusting screw hole, and the spring located in the positioning adjusting groove and the adjusting groove is movably connected with the base ;The torque device can be adjusted at any angle under the elastic force of the spring, which ensures that the torque device will not be displaced in the XOY plane during the adjustment process, so the structure is simple, the adjustment accuracy is high, and the performance is stable.

Description

technical field

[0001] The invention relates to an optical device, in particular to an inclination adjustment device for an optical pickup head torquer. Background technique

[0002] The optical pickup head has a torquer, through the movement of the torquer in the focusing direction and the tracking direction, the light spot formed by the focus of the objective lens on the torquer falls on the signal track of the optical disc accurately, when the objective lens on the torquer When there is an inclination angle with the disc surface, the quality of the signal read by the light spot cannot be guaranteed.

[0003] The traditional inclination adjusting device of the torquer of the optical read head includes a torquer, a base, a compression spring, and an adjusting screw. The torquer includes a torquer base, an S-line seat and an S-line seat screw; there are four small 45° slopes on the base in a rectangular distribution, and the torquer base also has four corresponding small T...

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