JPS5939432U - Optical information recording and reproducing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the elastic support of the two-axis actuator mechanism according to this invention, Fig. 2 is a partial cross-sectional view showing the elastic support and drive device of the tracking control section, and Fig. 2 is a plan view of the tracking coil seen from arrow C in FIG. 2, FIG. 4 is a side view showing the elastic support and drive device of the focus control section, and FIG. 6 is a perspective view of a two-axis actuator mechanism used in an embodiment of this invention; FIG. 7 is a developed view of the elastic support of the embodiment of FIG. 6; FIG. 8 is a perspective view showing an elastic support of a two-axis actuator mechanism used in another embodiment of this invention, and FIGS. 9, 10, and 11 also show another embodiment of this invention. It is a perspective view showing an example. In the figure, 1 is an optical pickup having a light source, a light receiving means, a detecting means, and a condensing means, 3a is a first elastic body, and 3b
5 is a second elastic body; 5 is a coil that constitutes the second driving means; 7 is a magnet that constitutes the second driving means;
8 is a coil that constitutes the first driving means, and 10 is a magnet that constitutes the first driving means. Note that the same reference numerals in the figures indicate the same or equivalent parts. shi'2 jb g upper 45 < l- corrected in Figure 6. 1982. 1.10 The scope of claims for utility model registration shall be amended as follows. O Utility Model Registration Claims (1) In an optical information recording and reproducing device that optically reads information on the recording surface of a recording medium or records desired information on the recording surface of a recording medium, a light source, A focusing means for condensing light onto the recording surface as a light spoiler 1-, a tracking error detection section for detecting a track deviation between the optical spot and an information track on the recording surface, and the optical spot and the recording surface. a detection means having a focus error detection section that detects a relative displacement in the optical axis direction with respect to the recording surface; a detection means that receives reflected light from the recording surface, photoelectrically converts information on the recording medium, and outputs an electric signal; a first elastic body that supports the light receiving means, the light source, the light condensing means, the detection means, and the light receiving means so as to be movable in parallel in the optical axis direction of the light spot; a second elastic body supporting the light source, the focusing means, the detecting means, and the light receiving means so as to be movable in parallel in a direction orthogonal to the optical axis of the light or spot; a first driving means for driving the light source, the condensing means, the detecting means, and the light receiving means in the optical axis direction of the light spot;
゛An optical information recording/reproducing device comprising a second driving means for driving a light source, the condensing means, the detecting means, and the light receiving means in a direction perpendicular to the optical axis of the light spot. (2) The optical system according to claim 1, wherein the first elastic body and the second elastic body are each formed of leaf springs arranged in directions perpendicular to each other. Information recording and reproducing device. (3) Optical information recording system according to claim 1 or 2, wherein the first elastic body and the second elastic body are formed of an integral spring. playback device.

Claims (3)

[Scope of utility model registration request] (1) In an optical information recording and reproducing device that optically reads information on the recording surface of a recording medium or records desired information on the recording surface of a recording medium, a light source and a light source that focuses light from the light source are used. a focusing means for focusing light as a light spot on the recording surface; a tracking error detection section for detecting a track misalignment between the light spot and an information track on the recording surface; and a relative relationship between the light spot and the recording surface in the optical axis direction. a detection means having a focus error detection section for detecting a displacement; a light receiving means for receiving reflected light from the recording surface and photoelectrically converting information on the recording medium to output an electric signal; a first elastic body that supports the optical means, the detection means, and the light receiving means so as to be movable in parallel in the optical axis direction of the light spot; a second elastic body supported so as to be movable in parallel in a direction orthogonal to the optical axis of the light spot; a first driving means for driving the light receiving means in the direction of the optical axis of the light spot; and a first driving means for driving the light source, the condensing means, the detection means, and the light receiving means in a direction perpendicular to the optical axis of the light spot. An optical information recording/reproducing device including a second driving means. (2) The optical system according to claim 1, wherein the first elastic body and the second elastic body are each formed of leaf springs arranged in directions perpendicular to each other. Information recording and reproducing device. (3) Are the first elastic body and the second elastic body an integrated spring?
The optical information recording and reproducing device according to claim 1 or 2, characterized in that the device is formed from the following claims.