Micromachine structure
First Claim
Patent Images
1. A micro-mechanical structure comprising:
- a base;
an elastic supporting member having elasticity, the elastic supporting member being formed on the base; and
a movable section supported by the elastic supporting member so as to be capable of making a relative move with respect to the base, wherein,the movable section includes;
a first plate portion opposing the base via a first gap; and
a second plate portion having a link portion, the second plate portion being affixed to the first plate portion via the link portion;
wherein the link portion is a vertical rib protruding from the second plate portion toward the first plate portion, and the vertical rib includes;
a portion having a first height so as to be in contact with the first plate portion; and
a portion having a second height so as to oppose the elastic supporting member via a second gap, the second height being smaller than the first height;
the elastic supporting member and the first plate portion are formed so as to be coplanar with each other, and the elastic supporting member is made integral with the first plate portion; and
the second plate portion is shaped so as to cover at least a portion of the elastic supporting member, and the vertical rib is not in contact with the elastic supporting member.
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Accused Products
Abstract
A micro-mechanical structure according to the present invention includes: a base 1; an elastic supporting member 5 having elasticity, the elastic supporting member 5 being formed on the base 1; and a movable section supported by the elastic supporting member 5 so as to be capable of making a relative move with respect to the base 1. This movable section includes a movable electrode 6 opposing the base 1 via a first gap, and a mirror 8 being affixed to the movable electrode 6 via a vertical rib 7.
10 Citations
13 Claims
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1. A micro-mechanical structure comprising:
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a base; an elastic supporting member having elasticity, the elastic supporting member being formed on the base; and a movable section supported by the elastic supporting member so as to be capable of making a relative move with respect to the base, wherein, the movable section includes; a first plate portion opposing the base via a first gap; and a second plate portion having a link portion, the second plate portion being affixed to the first plate portion via the link portion; wherein the link portion is a vertical rib protruding from the second plate portion toward the first plate portion, and the vertical rib includes;
a portion having a first height so as to be in contact with the first plate portion; and
a portion having a second height so as to oppose the elastic supporting member via a second gap, the second height being smaller than the first height;the elastic supporting member and the first plate portion are formed so as to be coplanar with each other, and the elastic supporting member is made integral with the first plate portion; and the second plate portion is shaped so as to cover at least a portion of the elastic supporting member, and the vertical rib is not in contact with the elastic supporting member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An optical pickup comprising:
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a light source for emitting a light beam; an objective lens for converging the light beam onto an optical disk; a photodetector for receiving the light beam reflected from the optical disk and generating an electrical signal; and an aberration correcting device for correcting an aberration of the light beam, wherein, the aberration correcting device includes; a base; an elastic supporting member having elasticity, the elastic supporting member being formed on the base; and a movable section supported by the elastic supporting member so as to be capable of making a relative move with respect to the base, wherein, the movable section includes; a first plate portion opposing the base via a first gap; and a second plate portion having at least one vertical rib, the second plate portion being affixed to the first plate portion via the vertical rib; wherein the vertical rib includes;
a portion having a first height so as to be in contact with the first plate portion; and
a portion having a second height so as to oppose the elastic supporting member via a second gap, the second height being smaller than the first height;the elastic supporting member and the first plate portion are formed so as to be coplanar with each other, and the elastic supporting member is made integral with the first plate portion; and the second plate portion is shaped so as to cover at least a portion of the elastic supporting member, and the vertical rib is not in contact with the elastic supporting member.
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12. An optical disk apparatus comprising:
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a motor for rotating an optical disk; an optical pickup for accessing a desired track on the optical disk; and a signal processing section for reproducing data from the optical disk based on an output from the optical pickup, wherein, the optical pickup includes; a light source for emitting a light beam; an objective lens for converging the light beam onto an optical disk; a photodetector for receiving the light beam reflected from the optical disk and generating an electrical signal; and an aberration correcting device for correcting an aberration of the light beam, wherein, the aberration correcting device includes; a base; an elastic supporting member having elasticity, the elastic supporting member being formed on the base; and a movable section supported by the elastic supporting member so as to be capable of making a relative move with respect to the base, wherein, the movable section includes; a first plate portion opposing the base via a first gap; and a second plate portion having at least one vertical rib, the second plate portion being affixed to the first plate portion via the vertical rib; wherein the vertical rib includes;
a portion having a first height so as to be in contact with the first plate portion; and
a portion having a second height so as to oppose the elastic supporting member via a second gap, the second height being smaller than the first height;the elastic supporting member and the first plate portion are formed so as to be coplanar with each other, and the elastic supporting member is made integral with the first plate portion; and the second plate portion is shaped so as to cover at least a portion of the elastic supporting member, and the vertical rib is not in contact with the elastic supporting member.
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13. A display device comprising:
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a light source for emitting a light beam; a light source driving section for modulating an intensity of the light beam in accordance with an image signal; and a scan mirror section for scanning a screen with the light beam, wherein, the scan mirror section includes; a base; an elastic supporting member having elasticity, the elastic supporting member being formed on the base; and a movable section supported by the elastic supporting member so as to be capable of making a relative move with respect to the base, wherein, the movable section includes; a first plate portion opposing the base via a first gap; and a second plate portion having at least one vertical rib, the second plate portion being affixed to the first plate portion via the vertical rib, wherein, the vertical rib includes;
a portion having a first height so as to be in contact with the first plate portion; and
a portion having a second height so as to oppose the elastic supporting member via a second gap, the second height being smaller than the first height;the elastic supporting member and the first plate portion are formed so as to be coplanar with each other, and the elastic supporting member is made integral with the first plate portion; and the second plate portion is shaped so as to cover at least a portion of the elastic supporting member, and the vertical rib is not in contact with the elastic supporting member; and
whereinthe second plate portion functions as a mirror for reflecting the light beam.
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Specification