| US 7,356,880 B2 | ||
| Hinge structure of micromirror device | ||
| Rogerio Jun Mizuno, Saitama-ken (Japan) | ||
| Assigned to PENTAX Corporation, Tokyo (Japan) | ||
| Filed on Jul. 25, 2005, as Appl. No. 11/187,984. | ||
| Claims priority of application No. 2004-216679 (JP), filed on Jul. 26, 2004; and application No. 2004-216680 (JP), filed on Jul. 26, 2004. | ||
| Prior Publication US 2006/0018049 A1, Jan. 26, 2006 | ||
| Int. Cl. E05F 1/08 (2006.01) | ||
| U.S. Cl. 16—277 [16/225; 16/222; 16/280; 16/367] | 20 Claims |
| 1. A hinge structure, comprising:
a rotatable plate member;
a frame member;
a spring member that connects the rotatable plate member with the frame member at each of two opposite positions along a rotation
axis so that the rotatable plate member rotates about the rotation axis with respect to the frame member,
wherein the spring member includes:
a first axial section;
a second axial section, an end of the first axial section being connected to the frame member, an end of the second axial
section being connected to the rotatable plate member, a predetermined gap being formed between another end of the first axial
section and another end of the second axial section;
a first zigzag section and a second zigzag section formed on opposite sides with respect to the rotation axis, each of the
first and second zigzag sections including parallel portions which are parallel with each other and with the rotation axis
and bent portions each connecting adjacent parallel portions, the bent portions being arranged in a direction perpendicular
to the rotation axis,
an end of the first zigzag section being connected to the other end of the first axial section,
an end of the second zigzag section being connected to the other end of the second axial section, and
the other end of the first zigzag section being connected to the other end of the second zigzag section.
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