Patent application number | Description | Published |
20090028027 | OPTICAL RECORDING MEDIUM, METHOD FOR RECORDING/REPRODUCING INFORMATION TO/FROM OPTICAL RECORDING MEDIUM AND APPARATUS FOR RECORDING/REPRODUCING INFORMATION - The present invention provides an optical information medium capable of suppressing the influence of reflection light from an unnecessary information recording face and effectively eliminating spherical aberration at the time of recording/reproducing information to/from a recording medium having a plurality of information recording faces. When reflectance of an information recording face is αh and transmittance between information recording faces is th, ah and th of the optical information medium are set so as to satisfy ((α(h−1) | 01-29-2009 |
20090067033 | MICROMACHINE STRUCTURE SYSTEM AND METHOD FOR MANUFACTURING SAME - A micro-mechanical structure system according to the present invention includes: a movable structure | 03-12-2009 |
20090073824 | Optical Disc Drive - An optical disk apparatus according to the present invention includes: a light emission section for emitting laser light; an optical system for irradiating the optical disk medium with the laser light; and an aberration control section for controlling aberration of the laser light. In one embodiment, the aberration control section repeatedly switches between a plurality of aberration setting states in a focus lock-in operation. In another embodiment, the aberration control section simultaneously sets a plurality of aberration setting states in a focus lock-in operation. As a result, a plurality of aberration setting states can be allowed to substantially coexist within a single optical system. | 03-19-2009 |
20090091718 | IMAGE PROJECTION DEVICE, IMAGE PROJECTION SCREEN AND IMAGE DISPLAY SYSTEM - 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. | 04-09-2009 |
20090147224 | IMAGE PROJECTION DEVICE - 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. | 06-11-2009 |
20090147636 | ACTUATOR, OPTICAL HEAD DEVICE, AND OPTICAL INFORMATION DEVICE - 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. | 06-11-2009 |
20090153935 | ACTUATOR - An actuator according to the present invention includes: a base | 06-18-2009 |
20090185249 | SCANNING UNIT AND IMAGE DISPLAY DEVICE - 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. | 07-23-2009 |
20100208564 | OPTICAL PICKUP, OPTICAL INFORMATION DEVICE, COMPUTER, OPTICAL DISK PLAYER, CAR NAVIGATION SYSTEM, OPTICAL DISK RECORDER, AND OPTICAL DISK SERVER - To provide an optical pickup and an optical information device, capable of obtaining excellent signal characteristics for an optical disk on and/or from which recording and/or reproducing are performed using a laser. The optical pickup includes an optical detector, a support holder for holding the optical detector, and an optical base for fixing the support holder. The support holder has at least two notches at its both ends, the optical base has convex portions corresponding to the notches of the support holder, the optical base and the support holder are fixed by photo-curable adhesives for bonding the convex portions and the support holder to each other, and the shortest distance between the side faces of the convex portions, which do not face each other, is equal to or less than the width of the support holder in the direction of right and left ends. | 08-19-2010 |
20110019524 | OPTICAL HEAD AND OPTICAL INFORMATION DEVICE - An optical head comprises: a light source that emits a light beam; an objective lens that condenses, in the form of converging light, the light beam emitted by the light source, onto an information recording medium; a cylindrical lens onto which a reflected light beam that is reflected by the information recording medium is incident, and which generates astigmatism for forming a focus error signal; a light detector that receives the reflected light beam passing through the cylindrical lens; and a holder that holds the cylindrical lens and the light detector. The holder has a first main face and a second main face that extend in directions that intersect the optical axis of the reflected light beam. The cylindrical lens is bonded to the first main face and the light detector is bonded to the second main face. | 01-27-2011 |
20110138405 | OPTICAL INFORMATION REPRODUCING APPARATUS, INFORMATION REPRODUCING METHOD OF OPTICAL INFORMATION REPRODUCING APPARATUS, PROGRAM AND RECORDING MEDIUM - A deterioration of reproduction light is occurred by a laser drive current on which a high-frequency current is superimposed. The present invention, for example, is an optical information reproducing apparatus which irradiates a laser beam to an optical disc | 06-09-2011 |
20110267934 | OPTICAL PICKUP, OPTICAL INFORMATION DEVICE, COMPUTER, OPTICAL DISK PLAYER, CAR NAVIGATION SYSTEM, OPTICAL DISK RECORDER, AND OPTICAL DISK SERVER - To provide an optical pickup and an optical information device, capable of obtaining excellent signal characteristics for an optical disk on and/or from which recording and/or reproducing are performed using a laser. The optical pickup includes an optical detector, a support holder for holding the optical detector, and an optical base for fixing the support holder. The support holder has at least two notches at its both ends, the optical base has convex portions corresponding to the notches of the support holder, the optical base and the support holder are fixed by photo-curable adhesives for bonding the convex portions and the support holder to each other, and the shortest distance between the side faces of the convex portions, which do not face each other, is equal to or less than the width of the support holder in the direction of right and left ends. | 11-03-2011 |
20120182852 | OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK APPARATUS, AND INFORMATION PROCESSING APPARATUS - An objective lens, an optical head, an optical disk apparatus and an information processing apparatus which can suppress deterioration of a focal spot caused by a drop in the diffraction efficiency are provided. An inner circumference area ( | 07-19-2012 |
20130064057 | OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK DEVICE, AND INFORMATION PROCESSING DEVICE - A disclosed objective lens includes: a lens having an entrance surface and an emission surface; and an anti-reflection coat formed on the emission surface, wherein a transmittance T | 03-14-2013 |