Patent ID: 7359308
Filing Date: 2008-04-15
Classification: G11B

Abstract:
1. A fixing structure for an optical element comprising: a first element face of the optical element; a second element face of the optical element which is orthogonal to the first element face; a first positioning plane of a fixed member which abuts with the first element face of the optical element and is fixed on the first element face with an adhesive; a recessed part which is formed on the fixed member at a position adjacent to the first positioning plane; and a second positioning plane of the fixed member which is orthogonal to the first positioning plane and abuts with the second element face of the optical element, wherein the second positioning plane is defined by a small projecting part which protrudes from the recessed part of the fixed member perpendicularly with respect to the first positioning plane to abut with the second element face so that the small projecting part is deformable when a stress is generated due to difference of coefficient of thermal expansion between the optical element and the fixed member.