| 摘要 |
PURPOSE:To offer an optical head whose cost is low, which is made small in size and light in weight and with which high speed access is facilitated. CONSTITUTION:After a light beam from a light emitting element 2 is transmitted through a beam guiding plate 1 and reflected by a galvanomirror 3 formed on a semiconductor substrate 4, it is made incident on the beam guiding plate 1 again and projected on a recording medium 7 through the beam guiding plate 1 so that it can be displaced in a direction crossing an information track. |
