摘要:
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.
摘要:
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.
摘要:
For a recording and playback optical head used for a dual layer disc, it is difficult to reduce the size and the cost due to the need to correct spherical aberration caused by a difference in thickness of a light-transmitting layer.A reflection mirror having a reflection surface on which light is reflected and provided with a member having ferromagnetism at the center, and a switching device that switches between a deformed state and a non-deformed state of the reflection mirror using a magnetic force are provided. The switching device includes a hard magnetic member, and a magnetizing member that magnetizes and demagnetizes the hard magnetic member. When light is concentrated on a first recording layer farther from the light-incident surface, the reflection mirror is used as a plane mirror, and when light is concentrated on a second recording layer closer to the light-incident surface, the reflection mirror is deformed in the shape of a concave surface by means of the switching device.
摘要:
There has been a trade-off between the rigidity and the mass of a movable section of a microactuator, and also between the rigidity of the movable section and the electrostatic force. A microactuator 100 includes: a base 1; a first comb electrode 2 supported by the base 1; a movable section 6 having a second comb electrode 8 opposing the first comb electrode 2, and at least one reinforcement rib 9 protruding toward the base 1; and an elastic supporting member 3 for supporting the movable section 6 so as to allow the movable section 6 to be displaced with respect to the base 1. The height of the second comb electrode 8 is different from the height of the at least one reinforcement rib 9.
摘要:
For a recording and playback optical head used for a dual layer disc, it is difficult to reduce the size and the cost due to the need to correct spherical aberration caused by a difference in thickness of a light-transmitting layer. A reflection mirror having a reflection surface on which light is reflected and provided with a member having ferromagnetism at the center, and a switching device that switches between a deformed state and a non-deformed state of the reflection mirror using a magnetic force are provided. The switching device includes a hard magnetic member, and a magnetizing member that magnetizes and demagnetizes the hard magnetic member. When light is concentrated on a first recording layer farther from the light-incident surface, the reflection mirror is used as a plane mirror, and when light is concentrated on a second recording layer closer to the light-incident surface, the reflection mirror is deformed in the shape of a concave surface by means of the switching device.
摘要:
There has been a trade-off between the rigidity and the mass of a movable section of a microactuator, and also between the rigidity of the movable section and the electrostatic force. A microactuator 100 includes: a base 1; a first comb electrode 2 supported by the base 1; a movable section 6 having a second comb electrode 8 opposing the first comb electrode 2, and at least one reinforcement rib 9 protruding toward the base 1; and an elastic supporting member 3 for supporting the movable section 6 so as to allow the movable section 6 to be displaced with respect to the base 1. The height of the second comb electrode 8 is different from the height of the at least one reinforcement rib 9.
摘要:
A scan unit according to the present invention is a scan unit including: a reflecting portion for reflecting laser light; and an enclosure portion having a movable object enclosed within a hollow, characterized in that the movable object moves in accordance with an angular velocity of the scan unit, thereby changing a reflecting state of the reflecting portion with respect to the laser light. In one embodiment, the movable object moves in accordance with the angular velocity of the scan unit to cover at least a part of the reflecting portion. In one embodiment, the movable object moves in accordance with the angular velocity of the scan unit to deform the reflecting portion.
摘要:
An optical head device according to the present invention includes: a light source for outputting laser light; an optical system for allowing the laser light to be radiated onto an optical disk medium; and an aberration correction section for correcting an aberration of the laser light. The aberration correction section includes: a plurality of mirror sections for reflecting the laser light; a plurality of mirror driving sections for displacing the plurality of mirror sections; and a detection section for detecting a physical condition within the optical head device.
摘要:
An image projector according to the present invention includes a first light source that emits visible light and a second light source that emits invisible light and projects the visible light and the invisible light onto a screen. The screen includes a material, at least one of the visible light reflectance, transmittance and absorbance of which changes when irradiated with the invisible light projected. The image projector further includes a modulating section for modulating the intensities of the visible light and invisible light based on an image signal and a control section for controlling the modulating section.
摘要:
An image projection apparatus according to the present invention includes a light source for outputting laser light and a mirror section for reflecting and projecting the laser light having been output from the light source, and displays an image with at least a portion of the projected laser light. The image projection apparatus includes a detection section for detecting at least a portion of the laser light returning from a projection direction of the laser light, and a calculation section for determining an image displayable region based on the detected light. The mirror section reflects at least a portion of the laser light returning from the projection direction of the laser light so as to be led into the detection section.