| Patent Number |
Title Of Patent |
Date Issued |
| RE39025 |
Lens device including a light controlling mechanism and an optical pickup apparatus using a lens |
March 21, 2006 |
| A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in a |
| 7512293 |
Header-replaceable hybrid waveguide sensor |
March 31, 2009 |
| A header-replaceable hybrid waveguide sensor comprises a header coupling section including a dielectric layer having an optical signal input section and an optical signal output section formed in one end thereof, the dielectric layer having two lines of protrusions formed on the upper |
| 7496264 |
Optical waveguide |
February 24, 2009 |
| An optical waveguide includes a linear metallic thin film having a light delivering unit coupled to one end thereof, through which light is incident; and at least more than two dielectric layers surrounding the metallic thin film. In the optical waveguide, an effective refractive ind |
| 7443594 |
Color display device using separate diffracted light and illumination light |
October 28, 2008 |
| A display device includes a condenser unit, an illumination lens system, a plurality of diffractive light modulators, a mirror for separating illumination light from diffracted light, a polarized beam separator, a filter unit and a projection unit. The condenser unit converges polarized |
| 7433553 |
Hybrid waveguide sensor |
October 7, 2008 |
| A hybrid waveguide sensor comprises a dielectric layer having one optical signal input section formed in one end thereof and one optical signal output section formed in the other end thereof, the dielectric layer having a predetermined size of thin metal film provided therein; a poly |
| 7394962 |
Optical waveguide for transmitting surface plasmon-polariton wave |
July 1, 2008 |
| An optical waveguide for transmitting a surface plasmon-polariton wave includes a metallic thin film formed to have a triangle-shaped cross-section; and a pair of first and second dielectric layers coupled to each other such that the opposing surfaces thereof come in contact with eac |
| 7377653 |
Color display apparatus having virtual single light origin |
May 27, 2008 |
| A color display apparatus having a virtual single light origin is disclosed. The color display apparatus includes an illumination lens system, a combining system, a Fourier filter and a projection system. The illumination lens system converts a plurality of light beams, which are rad |
| 7362693 |
Near-field optical storage medium and optical data storage system therefor |
April 22, 2008 |
| An optical data storage system writes or reads information with respect to an optical storage medium using an optical pickup including a solid immersion optical system or a solid immersion lens for generating a near-field and emitting a light beam. The optical storage medium includes |
| 7343072 |
Light modulator package having inclined light transmissive lid |
March 11, 2008 |
| Disclosed herein is a light modulator package having an inclined light transmissive lid which is manufactured or positioned such that a surface of the light transmissive lid is inclined relative to a reflective surface of a light modulating array. |
| 7304933 |
Optical recording apparatus using scanning mirror for generating two-dimensional beam |
December 4, 2007 |
| The present invention relates to an optical recording apparatus, which converts a one-dimensional signal beam into a two-dimensional signal beam using a scanning mirror at the time of recording data on a holographic recording medium, etc., thus greatly reducing required manufacturing |
| 7213921 |
Color display device using dichroic filter |
May 8, 2007 |
| A color display device is disclosed. The color display device includes an illumination lens system, a diffractive light modulation system, a combining system, a Fourier filter system, and a projection system. The illumination lens system converts a plurality of light beams into linear |
| 7133184 |
Variable grating diffractive light modulator |
November 7, 2006 |
| Disclosed herein is a variable grating diffractive light modulator, which actuates lower reflecting plates of a lower reflecting array by a piezoelectric actuating method, and includes an upper reflecting array that is spaced apart from the lower reflecting array and attached to a lo |
| 7099064 |
Electrostatic-type variable diffractive light modulator and manufacturing method thereof |
August 29, 2006 |
| Disclosed herein are an electrostatic-type variable diffractive light modulator, which includes lower micromirrors that are provided on a glass substrate to be spaced apart from each other, and actuates upper micromirrors that are spaced apart from the substrate by an electrostatic a |
| 7054259 |
Near-field optical storage medium and optical data storage system therefor |
May 30, 2006 |
| An optical data storage system writes or reads information with respect to an optical storage medium using an optical pickup including a solid immersion optical system or a solid immersion lens for generating a near-field and emitting a light beam. The optical storage medium includes |
| 7042625 |
Light modulator having digital micro blaze diffraction grating |
May 9, 2006 |
| Disclosed is a light modulator having a digital micro blaze diffraction grating. In the light modulator, a fine protrusion is formed on an edge of a lower surface of a diffraction member so that a reflective surface inclines due to the fine protrusion when the diffraction member is drawn |
| 6885625 |
Near-field optical storage medium and optical data storage system therefor |
April 26, 2005 |
| An optical data storage system writes or reads information with respect to an optical storage medium using an optical pickup including a solid immersion optical system or a solid immersion lens for generating a near-field and emitting a light beam. The optical storage medium includes |
| 6798732 |
Near-field optical storage medium and optical data storage system therefor |
September 28, 2004 |
| An optical data storage system writes or reads information with respect to an optical storage medium using an optical pickup including a solid immersion optical system or a solid immersion lens for generating a near-field and emitting a light beam. The optical storage medium includes |
| 6728076 |
Cartridge having sensor hole to be opened/closed and apparatus and method for driving the same |
April 27, 2004 |
| A cartridge having a sensor hole to be opened/closed and a method and an apparatus for driving the same. To improve a problem that a cartridge receiving a DVD-RAM disc which has been once withdrawn therefrom performs the recording process under the same conditions as a bare disc, the |
| 6606295 |
Disc accomodating adaptor and a method and apparatus for driving the same |
August 12, 2003 |
| An adaptor includes a sensor hole to be open/closed, and a method and an apparatus drive the adaptor. The adaptor includes at least one sensor hole determining the size of a disc received in an adaptor body which is received via a disc holder. The disc holder includes an elastic press |
| 6574189 |
Cartridge having sensor hole to be opened/closed and apparatus and method for driving the same |
June 3, 2003 |
| A cartridge having a sensor hole to be opened/closed and a method and an apparatus for driving the same. To improve a problem that a cartridge receiving a DVD-RAM disc which has been once withdrawn therefrom performs the recording process under the same conditions as a bare disc, the |
| 6295255 |
Optical pickup having a tilt mechanism to adjust an optical axis of an incident light beam |
September 25, 2001 |
| An optical pickup includes a rotary block rotatably installed on a fixed base; a holder integrally coupled to the rotary block; a bobbin supported by a wires of the holder to be movable; a base plate fixed to the fixed base and placed between the rotary block and the bobbin; an objective |
| 6266315 |
Catadioptric optical system, optical pickup and optical disk drive employing the same, and optic |
July 24, 2001 |
| An optical focusing system which uses a light beam emitted from a light source, includes a refractive surface on one side of the optical focusing system and having a first radius of curvature, a first reflection surface on the above one side, surrounding the refractive surface and having |
| 5987924 |
Lens mold and method of manufacturing a lens |
November 23, 1999 |
| A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in a |
| 5933401 |
Optical pickup having plural optical sources and plural optical detectors |
August 3, 1999 |
| An optical pickup capable of compatibly adopting disks of different formats which are placed in an optical player includes a first optical source for emitting light having a predetermined wavelength, a second optical source for emitting light having a wavelength different from that of li |
| 5822135 |
Lens device including a light controlling mechanism and an optical pickup apparatus using a lens |
October 13, 1998 |
| A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in a |
| 5796700 |
Optical pickup to circularize light emitted from a light source |
August 18, 1998 |
| An optical pickup having a beam shaping device for changing an oval-shaped light beam emitted from a light source into a circular light beam, and an astigmatic difference correcting device for correcting the astigmatic difference of the light is provided. The beam shaping device is a |
| 5734512 |
Dual-focus objective lens of optical pickup |
March 31, 1998 |
| A dual-focus objective lens for an optical pickup which is compatible with both 0.6 mm and 1.2 mm disks is compensated in its aberration with respect to a light spot on a recording plane of the loaded disk and is composed of a first lens and a second lens. The loaded positions of the 0.6 |
| 5665957 |
Lens device comprising light blocking means and an optical pickup apparatus using the lens devic |
September 9, 1997 |
| A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in a |
| 5210056 |
Method for forming a gate oxide film of a semiconductor device |
May 11, 1993 |
| A fabrication method of a semiconductor device is disclosed. Particularly, in the process of forming a gate oxide film on a semiconductor substrate, the method for forming a gate oxide film of a semiconductor device comprises the steps of first-annealing the semiconductor substrate in a |
