Test device for horizontal position of an optical disc drive motor

• US 6,403,974 B1
• Filed: 11/13/2000
• Issued: 06/11/2002
• Est. Priority Date: 11/13/2000
• Status: Expired due to Fees

• Current Assignee: Behavior Tech Computer (USA) Corporation (Behavior Tech Computer Corporation)
• Original Assignee: Behavior Tech Computer (USA) Corporation (Behavior Tech Computer Corporation)
• Inventors: Lin, Bo-Wen
• Primary Examiner(s): Kim, Robert H.
• Assistant Examiner(s): Ho, Allen C.
• Application Number:
  US09/709,357
• Time in Patent Office: 575 Days
• Field of Search: 250/548, 250/559.3, 250/559.33, 356/612
• US Class Current: 250/559.3
• CPC Class Codes: G01B 11/26 for measuring angles or tapers; for testing the alignment of axes
• CPC Class Codes: G11B 7/22 Apparatus or processes for the manufacture of optical heads, e.g. assembly

Abstract

A test device for horizontal position of an optical disc drive, comprising a test platform having a plurality of vertical position rods mounted thereon and the rods being of similar horizontal height; and at least a sensor mounted within the area formed by the position rods located on the platform, and including at least an emitting element and a receiving element, the emitting element emitting an optical detection signal (i.e., incident wave) to an optical disc connectedly driven by the motor rotating shaft of a pick-up mechanism to be tested, by means of a reflected optical signal produced by the optical disc, the receiving element receives the signal, and the sensor produces a horizontal height measuring data, and thereby the results and the measured horizontal height data determine whether the motor horizontal position of the optical disc drive pick-up device is parallel to the horizontal axial direction of the optical disc drive pick-up device.

Claims

1. A test device for horizontal position of an optical disc drive, comprising

(a) a test platform having a plurality of vertical position rods mounted thereon and the rods being of similar horizontal height;

and

(b) at least a sensor mounted within the area formed by the position rods located on the platform, and including at least an emitting element and a receiving element, the emitting element emitting an optical detection signal (i.e., incident wave) to an optical disc connectedly driven by the motor rotating shaft of a pick-up mechanism to be tested, by means of a reflected optical signal produced by the optical disc, the receiving element receives the signal, and the sensor produces a horizontal height measuring data, and thereby the results and the measured horizontal height data determine whether the motor horizontal position of the optical disc drive pick-up device is parallel to the horizontal axial direction of the optical disc drive pick-up device.

2. A test device for horizontal position of an optical disc drive as set forth in claim 1, wherein at least an interfacing device is provided to the test platform to transmit the horizontal height data detected by the sensor to the near-end computer and the far-end computer for determination and recording.

3. A test device for horizontal position of an optical disc drive as set forth in claim 1, wherein the end terminal of the respective position rods of the test platform is mounted with at least a protruded block for the securing of the four corners of the optical disc drive pick-up device.

4. A test device for horizontal position of an optical disc drive as set forth in claim 1, wherein the sensor is a laser optical signal-sensing element.

5. A test device for horizontal position of an optical disc drive as set forth in claim 1, wherein the sensor is an infrared optical signal-sensing element.