Patent application number | Description | Published |
20120294133 | OPTICAL PICKUP, OPTICAL DISK DRIVE DEVICE, OPTICAL INFORMATION RECORDING DEVICE, AND OPTICAL INFORMATION REPRODUCTION DEVICE - An optical pickup, an optical disk drive device, an optical information recording device, and an optical information reproduction device in which a reproduction signal, a focus error signal, and a gap error signal can be detected with high accuracy when information is recorded/reproduced on/from an optical information medium having a plurality of information recording layers. The optical pickup includes a focusing lens group ( | 11-22-2012 |
20130083645 | OPTICAL PICKUP, INCLINATION ANGLE DETECTION METHOD, OPTICAL INFORMATION DEVICE AND INFORMATION PROCESSING DEVICE - An optical pickup, an inclination angle detection method, an optical information device, and an information processing device capable of reliably and accurately detecting a relative inclination angle between an end face of a solid immersion lens and a surface of an optical recording medium are provided. A convergence position modifying unit modifies convergence states of a first beam and a second beam according to layers of an optical recording medium, a first optical detector includes a first light receiving section which receives the converged first beam and a second light receiving section which receives the converged second beam, and the first optical detector detects a relative inclination angle between an end face of a solid immersion lens and a surface of the optical recording medium based on a difference in quantities of received light between the first light receiving section and the second light receiving section. | 04-04-2013 |
20140022882 | INFORMATION STORAGE MEDIA, TRACKING METHOD, AND OPTICAL INFORMATION APPARATUS - An optical disc ( | 01-23-2014 |
20140146321 | DETECTION DEVICE, INFORMATION REPRODUCTION DEVICE, DRIVE DEVICE, SENSOR, AND DETECTION METHOD - The present application discloses a detection device including a light source configured to emit emission light, a scattering substance situated near a target object and configured to generate plasmon resonance between the scattering substance and the target object, a light guide portion configured to guide the emission light to the scattering substance and cause first reflected light, which is reflected from the scattering substance, and a detector configured to detect a state in phase of the first reflected light. | 05-29-2014 |
20140160914 | INFORMATION RECORDING MEDIUM, INFORMATION DEVICE, AND METHOD FOR PRODUCING INFORMATION RECORDING MEDIUM - An information device is an information device that records information on or reproduces information from an information recording medium ( | 06-12-2014 |
20150103352 | SCANNING OPTICAL MICROSCOPE - A scanning optical microscope includes a light source; a first beam splitter that splits light into irradiation light and reference light; a first objective lens that converges the irradiation light on a sample and receives signal light; a second beam splitter that splits the signal light off from an optical path; a pin hole positioned on an optical path of the split signal light at a position optically conjugate with an image-forming point of the first objective lens; a condenser lens that converges the split signal light on the pin hole; a phase plate that outputs first light including at least four firstly-split beams having different phases; a third beam splitter that multiplexes the first light and second light to generate interfering light including at least four secondly-split beams having different phases; and a light detecting element that receives the interfering light and outputs at least four electric signals. | 04-16-2015 |
20150219888 | IMAGE GENERATION DEVICE AND IMAGE GENERATION METHOD - The present application discloses image generation device for generating sample image representing sample. The image generation device includes laser source portion which emits laser beam, convertor for converting laser beam into multiplexed beam, in which reflected beam after reflection of laser beam by sample and reference beam after modulation of phase of the laser beam are multiplexed, first signal generator which generates first detection signal corresponding to light quantity of multiplexed beam, image generator which generates sample image, and modulator which modulates the phase to cause periodic variation of light quantity of multiplexed beam. The first detection signal includes signal component representing change from increase to decrease in the periodic variation. The image generator uses signal component to generate sample image. | 08-06-2015 |