Matches 1 - 12 out of 12


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US20090016191 OPTICAL HEAD DEVICE  
It is provided an optical head device which includes: a light source; an objective lens, configured to converge light emitted from the light source to an information recording surface of an...
US20100188959 INFORMATION STORAGE MEDIUM AND APPARATUS FOR RECORDING/REPRODUCING THE SAME  
An information storage medium and an apparatus for recording/reproducing the same are provided. The information storage medium is provided in which repetitive recording is performed by using...
US20070008858 Optical pickup and optical disc apparatus  
There is provided an optical pickup for recording or reproducing an information signal on/from a plurality of optical discs, each including a protective substrate having a different thickness for...
US20060072425 Array-based optical head  
An array-based optical head is configured for read and/or write operations to optical media. In one implementation, a polarizing beam splitter is configured to direct laser light to optical media....
US20060039265 Pickup module with coating layer  
A pickup module comprises a plurality of optical components along an optical path, wherein at least two of the optical components are provided with coating layers to change a polarization of a...
US20130135981 METHOD FOR REMOTE TRANSMISSION OF AN ENERGY INFORMATION SIGNAL FROM ANIMATE INANIMATE OBJECTS, AND AN ENERGY INFORMATION SIGNAL CONVERTER  
A method comprised of transferring energy information signals onto a first intermediate carrier, with subsequent transmission of information to a receiver input and taking off the signal at the...
US20060028956 Optical pickup and information processing device  
An optical pickup 200 is arranged between optical discs 10A and 10B rotatably supported with the recording surfaces 10Aa and 10Ba facing each other, the optical pickup being movable along the...
US20070064572 Optical data encoding and detection  
A method of recording information comprising combining three degrees of freedom of pit geometry and layout along the track, the three degrees of freedom comprising: using several pit lengths for...
US20080316897 METHODS OF TREATING A SURFACE OF A FERROELECTRIC MEDIA  
A method of forming a passivation layer over a ferroelectric layer of a ferroelectric media comprises introducing the ferroelectric layer to a plasma comprising one of oxygen, oxygen-helium, and...
US20080298208 OPTICAL HEAD AND OPTICAL DISC APPARATUS  
An optical head includes semiconductor lasers for 455 nm, 655 nm, and 785 nm bands; a polarization change element and a polarizing beam splitter for luminous flux with a wavelength of 455 nm band,...
US20050265201 Integrated type light-emitting and light-receiving element, optical pickup device for optical information medium and optical disc apparatus  
An integrated type light-emitting and light-receiving element includes a polarizing hologram and this polarizing hologram introduces returned light into a second photo-detecting unit for detecting...
US20090268581 OPTICAL PICK-UP DEVICE  
An optical pickup in which constituting components are arranged so that a dead space can be reduced and aberrations can also be reduced at a low manufacturing cost is provided. In an outward path...

Matches 1 - 12 out of 12