Optical disk driver with novel structure

Abstract

The optical drive includes following parts: telescopic tray for housing optical disk inside chassis; drive for driving optical disk on the tray; recording on optical disk rotated under action of drive or optical pick-up for playing optical information. In the drive, gap between bottom of the tray and lower surface of optical disk can be changed based on radius. Thus, when optical disk is rotated in high speed, pressure gradient occurred between bottom of the tray and lower surface of optical disk is minimized. The invention makes optical disk be driven more stable so as to guarantee creditability of recorded and played information.

Description

technical field [0001] The invention relates to an optical drive for driving an optical disc. Background technique [0002] The general optical drive has been developed to the specifications of 52X recording above 10,000RPM, and the related CD series or DVD series discs are also continuously increasing their double speed. At the same time, many mechanical problems caused by the high-speed drive have also been caused. What we need are related countermeasures. [0003] According to Korean Patent No. 100298553000, taking the optical disc 10 rotating in the casing 40 as an example, compared with the upper and lower central positions, the vibration amount at the asymmetrical position of the up and down tilt is significantly lower. [0004] But CD-ROM such as figure 1 or figure 2 As shown, below the optical disc 10 is the tray 30, and above the optical disc 10 is the entire casing 40; the distance between the optical disc 10 and the upper casing 40 is more than three times the...

AI Technical Summary

Problems solved by technology

[0013] Due to such a space, the pressure unevenness of the optical drive becomes more serious, and since the pressure distribution of one rotation is relatively high and low, the excitation phenomenon occurs on the optical disc

In particular, when the magnification is high, its excitation force will become more serious, so it will cause serious vibration of the optical disc 10, and at the same time, it will have a negative impact on the playback and recording of the optical disc.

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