optical disc drive

Abstract

Abstract PURPOSE:To prevent an optical head from being polluted by dust in air for cooling by separating the optical head from an air current for forced cooling by a shielding member. CONSTITUTION:The internal part of a drive case 101 is divided into three spaces 104x, 104y and 104z by a shielding member 115 for separation. In the spaces 104, an optical head 108, driving means 109 and disk cartridge 106 are provided. In the space 104x, an electric substrate unit 105 is provided. In the space 104z, a spindle motor 107a is provided to drive a turn table 107. Through a cooling fan 114, the external air passes from take-in ports 103 and 103' through openings 104b and 104b' to the spaces 104x and 104y. The cooling air is not passed through the space 104y and therefore, the lens of an optical head 108 is not polluted by the dust in the air.

Inventors

• 👤 Giichi Miyajima
• 👤 義一 宮島

Bibliographic Details