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7616531 Integrated optical unit, adjusting method therefor, and optical pickup  
In an integrated optical unit of the present invention, a photo detector ( 12 ) and a holding member ( 17 ) that sustains a semiconductor laser ( 11 ) are provided on a polarizing beam splitter (...
7602690 Aberration adjustment device, method thereof, optical pickup, and optical information recording apparatus  
A method for adjusting an aberration is disclosed that adjusts the aberration existing in a light spot by using a control signal generated from a wobbling signal and a reproduction signal, and...
7602692 Near-field optical probe for reproducing information on a recording medium using near-field light  
A near-field optical probe has a planar substrate formed with a through-hole and a phase shifter layer translucent to light having a wavelength of illumination light used to illuminate the...
7599277 Near-field optical head having tapered hole for guiding light beam  
A near-field optical head has a planar substrate having a first surface, a second surface disposed opposite to the first surface, and an inverted conical or pyramidal hole extending through the...
7596072 Optical recording using a waveguide structure and a phase change medium  
An apparatus comprises a slider having an air bearing surface, a first waveguide for directing electromagnetic radiation to a focal point adjacent to the air bearing surface, a storage medium...
7580602 Beam apodization for a planar solid immersion mirror  
An apparatus includes a planar waveguide, first and second gratings for coupling electromagnetic radiation into the planar waveguide, and a beam shaper for controlling the amplitude distribution of...
7580336 Optical head having a beam input/output coupler on a planar waveguide  
An optical head has a beam input/output coupler on a planar waveguide and other parts including: a light transmitting element emitting a beam; a planar waveguide formed on a substrate and receiving...
7547868 Optical near-field generating apparatus and method and information recording and reproducing apparatus  
An optical near-field generating apparatus includes a conductive scatterer causing an optical near-field based on a surface plasmon to be generated by being illuminated by incident light, and a...
7480229 Light-emitting device and optical integrated device  
In fabricating a monochromic and highly coherent light source, no single crystalline bulk semiconductor is used, but two different kinds of transparent substances are alternately stacked over each...
7444047 Multiplexing optical system  
A multiplexing optical system includes collimator lenses, a first condensing lens, a second condensing lens and an optical fiber. The collimator lenses collimate divergent laser beams that have...
7440660 Transducer for heat assisted magnetic recording  
An apparatus includes a first waveguide configured to focus an electromagnetic wave to a focal region, and a second waveguide defining an opening having an end positioned adjacent to the focal...
7440384 Magnetic recording device for heat assisted magnetic recording  
A magnetic recording device is provided according to the present invention for magnetic recording on a recording medium. The magnetic recording device includes a planar waveguide having a...
7408847 Integrated type optical head with sheet waveguide and light coupler  
An integrated optical head is provided. In the integrated optical head, a light source emits light. A waveguide guides the light. An input coupler is located at one edge of the waveguide, and...
7366060 Method for forming optical aperture, near-field optical head, method for fabricating near-field optical head, and information recording/reading apparatus  
A near-field optical head has a main surface confronting a recording medium during use of the near-field optical head. A sharpened tip is disposed on the main surface and has an optical aperture at...
7345981 Optical pickup  
An optical pickup including an optical member which inhibits interference light reflected from an adjacent layer from being received by a photodetector when an optical information storage medium...
7345840 Light delivery technique for heat assisted magnetic recording head  
A suspension arm for an optical transducer comprises a load beam, a slider coupled to the load beam by a gimbal assembly and including an optical transducer positioned adjacent to an end of the...
7342868 Compatible optical pickup apparatus  
A compatible optical pickup apparatus and method are provided. The apparatus and method include a first light source for generating and emitting a first light having a predetermined wavelength, a...
7330404 Near-field optical transducers for thermal assisted magnetic and optical data storage  
An optical transducer comprises an optical element for directing an electromagnetic wave to a focal region and a metallic nano-structure having a longitudinal axis substantially parallel to an...
7327639 Hybrid writing and reading head to record data with high density  
A hybrid head to record and reproduce high density data. The hybrid head to record and reproduce data includes an element to record and reproduce data which is formed at the back side of a slider....
7327664 Optical recording apparatus  
An optical fiber array is constructed by using a plurality of laser modules, which guide a laser beam emitted from a semiconductor laser of a blue color wavelength to an optical fiber, such that...
7327665 Optical fiber probe using an electrical potential difference and an optical recorder using the same  
An optical fiber probe generates an electrical potential difference formed between thin metal layers coated thereon to increase a light transmission rate. The optical fiber probe includes a...
7308172 System for reading data stored on an information carrier  
The invention relates to a system for reading data stored on an information carrier. The system comprises a waveguide ( 1203 ) which allows displacing laterally the different components in...
7289422 Optical devices having transmission enhanced by surface plasmon mode resonance, and their use in data recording  
A device includes an optical gain medium through which optical radiation is amplified. The device includes first and second reflectors disposed around the gain medium. One of the reflectors...
7272102 Ridge waveguide with recess  
A ridge waveguide having a recessed ridge forming an isolated tip at a terminal end of the waveguide's aperture efficiently couples light into a spot adjacent to the tip in a medium below the...
7239599 Light irradiation head and information storage apparatus  
A light irradiation head of the present invention includes: a propagation body having a tapered two dimensional shape axially symmetrical to a predetermined symmetrical axis, and consisting of a...
7209413 Optical scanning device  
An optical scanning device for scanning an information layer of an optical record carrier and including a rotary aim ( 2; 102; 202; 302; 402; 502 ) which is arranged to swing about a rotation axis...
7202464 Optical bench, slim optical pickup employing the same and method of manufacturing the optical bench  
An optical bench is provided, as are a thin optical pickup that employs the optical bench, and a method of manufacturing the optical bench. The optical bench includes a light source for generating...
7154820 Optical element for enhanced transmission of light and suppressed increase in temperature  
An optical element structure allowing an increased power density of aperture-transmitted light while suppressing increase in temperature is disclosed. A conductive film has a sub-wavelength...
7151738 Apparatus and method for coupling light to a thin film optical waveguide  
An optical waveguide comprises a core guiding layer; a cladding layer positioned adjacent to the core guiding layer; a reflective layer positioned adjacent to the cladding layer; and a grating for...
7131128 Optical actuator  
An optical pickup actuator for use with a recording medium includes a swing arm pivoting in a tracking direction with respect to the recording medium, a first driving unit pivoting the swing arm,...
7085220 Optical head and optical device for enhancing the intensity of a transmitted light  
A optical device including conductive films having a first and second surfaces, one hole, surface specific shapes periodically, and a layer inserted as an intermediate layer between the first and...
7065035 Optical multilayer disk, multiwavelength light source, and optical system using them  
When a wavelength of a first laser beam with which a first recording medium including a first recording layer is recorded and reproduced is indicated as λ1 (nm), a wavelength of a second laser...
7054255 Near field information recording/reproduction apparatus having waveguide with reflection surface  
A near-field optical head has a minute structure formed in the support member for interacting with a recording medium via near-field light. An optical waveguide is provided on the support member...
6999657 High density optical data storage  
A data storage apparatus includes an array of optical fibers. The array has a first end and a second end. The first end of the array includes multiple optical fiber ends, each optical fiber end...
6944112 Heat assisted magnetic recording head with a planar waveguide  
A heat assisted magnetic recording head having a planar waveguide for heating a recording medium proximate to where a write pole of the recording head applies a magnetic write field thereto. The...
6940803 Optical head, recording and reproducing apparatus and solid immersion lens  
A recording and reproducing apparatus has an optical head that is provided with a laser light source for emitting light and a reflection converging optical system. The reflection converging optical...
6834027 Surface plasmon-enhanced read/write heads for optical data storage media  
A read/write head for an optical storage medium is provided. The read/write head comprises a waveguide having an end face and a plasmon-enhanced device provided on the end face of the waveguide....
6807140 Optical pickup device for emitting laser beams having different wavelengths and optical disk driver for use therewith  
In an optical pickup device for emitting at least two laser beams suitable for respective optical recording mediums selectively operated on an optical disk driver so that a signal is read out from...
6795630 Apparatus and method for producing a small spot of optical energy  
An apparatus for producing a small spot of optical energy comprises a planar waveguide shaped to direct a linearly polarized electromagnetic wave to a focal point within the waveguide, and a...
6781941 Field serviceable laser pen for optical disk drives  
A laser source is located in a relatively cool accessible location. Because there is adequate heat dissipation for the laser source, changes in the laser wavelength that arise from laser...
6781927 Data storage system having an optical processing flying head  
An optical data storage and retrieval system uses a flying head. The flying head is supported on a moving media having information stored in a plurality of stored data locations thereon....
6760297 Substrate unit for optical head and method for manufacturing the same  
There is disclosed a substrate unit comprising a light emitting element attachment surface for attaching a light emitting element which emits laser light substantially in parallel to the attachment...
6729541 Information reading apparatus and information recording medium  
An information reading apparatus can detect the coupling state of the input light to a waveguide of a laminated recording medium in a simple manner, so as to enable to focus the input light on a...
6714370 Write head and method for recording information on a data storage medium  
A recording head for use in conjunction with a magnetic storage medium, comprises a waveguide for providing a path for transmitting radiant energy, a near-field coupling structure positioned in the...
6700855 Optical disk device  
A light emitted from a light source ( 11 ) or a return light from a magneto-optical discs ( 7 a , 7 b , 7 c or 7 d ) is transmitted by a polarization maintaining optical fibers ( 15 a , 15 b , 15...
6671237 Method and apparatus for driving an electro-optic modulator assembly  
An electro-optic modulator is driven between discrete operating points such that a reversal of applied field polarity reduces harmful charge screening effects and the voltage swing between the...
6639887 Optical apparatus with laser light receiver and focus error generator in the same layer  
An optical integrated apparatus is used in an optical pickup apparatus which irradiates a light emitted by a light emitting device to an optical information record medium, on which record...
6614746 Optical recording/reproducing method, recording medium used for optical recording and reproduction, and optical recording/reproducing apparatus  
High density data storage device has a support substrate and one or more different types of phosphors contained at each of plural regularly arranged microscopic regions of the support substrate....
6614957 Optical configuration for improved lens performance  
Described herein is a system and method for extending the performance of a simple lens system with curvature of field to image a set of optical light guide sources extended over a wide field of...
6587421 Refractive index matching means coupled to an optical fiber for eliminating spurious light  
An optical data storage system utilizes optical fibers for transfer of information to and from storage media. The storage media comprises magneto-optical storage disks. The optical fibers are...
Matches 1 - 50 out of 160 1 2 3 4 >