| 摘要 |
In a lens holding system of the present invention, at least two lens protection sections protruding from a surface of a lens holding section are provided, which surface faces the optical recording medium, the lens protection sections sandwiching an objective lens therebetween. A distance between each of the lens protection sections and the optical recording medium is smaller than a distance between the objective lens and the optical recording medium. Accordingly, according to the structure mentioned above, because each of plural lens protection sections is independently provided, spaces between (i) adjacent lens protection sections and (ii) each of the lens protection sections and the lens holding section are easily formed. This makes it possible to easily perform attachment/detachment of the objective lens to/from the lens holding section. Further, a region for releasing heat is easily formed by the space provided between adjacent lens protection sections mentioned above. Therefore, it becomes possible to prevent temperature rise, caused by generation of heat in driving sections, of the objective lens and a region surrounding the objective lens.
|
