Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 8077587 | Laser attachment device and optical pick-up device using the same A laser attachment device of the present invention is formed of a LD package and a LD holder housing it. A first inner wall of the LD holder to come into contact with a side surface of the LD package is an inclined surface. This allows the facing direction of the LD... | 12/13/2011 |
| 7961585 | Semiconductor device and optical pickup device By increasing the width of a lead terminal 2 connected to a die pad 1 in the vicinity of the die pad 1 and forming a slit 9 and a projecting plate in the lead terminal in the region where resin 5 is formed, it is possible to ensure... | 06/14/2011 |
| 7778142 | Optical pickup apparatus and electronic equipment having the same There is provided an optical pickup apparatus which is small in size and excellent in releasing action of heat generated inside the apparatus. An optical pickup apparatus includes semiconductor lasers as light sources for emitting light, a laser driver for controlli... | 08/17/2010 |
| 7471613 | Optical pickup device An optical pickup device comprises a light emitting element for emitting a laser beam, and a housing in which the light emitting element is mounted, wherein the light emitting element is contained in a holder for protecting the light emitting device, the holder incl... | 12/30/2008 |
| 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 been emitted from semiconductor lasers. The first condensing lens conden... | 10/28/2008 |
| 7406019 | Semiconductor laser apparatus and optical pickup apparatus A semiconductor laser apparatus is provided which comprises a semiconductor laser device for emitting laser light and a base having a major surface and a circumferential side surface. The circumferential side surface has an upper surface and a lower surface. The sem... | 07/29/2008 |
| 7400568 | Optical device, optical pickup and optical disk apparatus An optical device wherein an optical component and a plurality of light emitting elements are mounted on an identical substrate, a level of a surface on which the optical component is mounted is different from that of a surface on which the light emitting elements a... | 07/15/2008 |
| 7342870 | Position adjustment apparatus, optical pickup apparatus and position adjustment method A chuck portion provided to keep a fixed positional relation with respect to a housing, holds a light source unit detachably. This chuck portion is displaced from an advanced position to a retracted position to displace the light source unit which is in a provisiona... | 03/11/2008 |
| 7317676 | Optical head device and optical information apparatus using this optical head device, and computer, optical disk player, car navigation system, optical disk recorder and optical disk server using this optical information apparatus Providing an objective lens with a large numerical aperture (NA), the present invention records or plays conventional optical disks such as CDs and DVDs at high light usage efficiency, using an optical head capable of recording or reproducing high-density optical di... | 01/08/2008 |
| 7269120 | Optical pickup An optical pickup includes a radiating plate made to abut against a rear surface of a laser diode by positioning an engaging hole provided penetratingly in a central portion of the radiating plate concentrically with the laser diode. Slits are formed in the radiatin... | 09/11/2007 |
| 7265883 | Optical scanner with micro-optics for beam combination An optical scanner having a micro-optical element for combining two light beams is disclosed. The optical scanner has a micro-optical element including two parts, which serves to combine two light beams emitted, by two beam sources on a photodetector. The first part... | 09/04/2007 |
| 7257297 | Optical communication module with particular fiber guide hole, optical-communication-module production method, and electronic device An optical communication module in which an incident or emergent end of an optical fiber can be easily and precisely aligned with a light-emitting element or a light-receiving element. The optical communication module includes a base block that has a first surface a... | 08/14/2007 |
| 7230888 | Light emitting device and information processing apparatus A light emitting device according to the present invention includes: a first light source for emitting light having a first wavelength; and a second light source for emitting light having a second wavelength which is different from the first wavelength, wherein the ... | 06/12/2007 |
| 7161890 | Optical head device and optical information device using this and computer optical disk player car navigation system optical disk recorder and optical disk server using this optical information device Providing an objective lens with a large numerical aperture (NA), the present invention records or plays conventional optical disks such as CDs and DVDs at high light usage efficiency, using an optical head capable of recording or reproducing high-density optical di... | 01/09/2007 |
| 7109462 | Light beam output control apparatus, optical pickup apparatus, light beam emission control method and computer-readable recorded medium in which light beam emission control program is recorded An optical pickup apparatus comprises a semiconductor laser output controller for emitting laser beam, a photodetector for detecting the emitted laser beam, a sampling processor for performing a sampling process, an averaging processor for performing an averaging pr... | 09/19/2006 |
| 7106681 | Optical head arrangements with single substrate lasers An optical head with a plurality of semi-conductor laser chips for use in reducing inclination or gradient of more than one beam presently falling onto a focusing lens is disclosed. To this end, a double mirror or alternatively beam reshaping means is disposed which... | 09/12/2006 |
| 7095682 | Compact optical signal detecting mechanism and optical storage device having improved signal quality An optical pickup including a stem; a substrate mounted on the stem; a laser diode mounted on, and electrically insulated from, the substrate; and a photodetector provided on the substrate for detecting return light from an object to be irradiated. The substrate is ... | 08/22/2006 |
| 7092345 | Optical module An optical module has a first light source which emits a first light beam from a first light emission point in a predetermined direction, a second light source which emits a second light beam from a second light emission point in the predetermined direction, and an ... | 08/15/2006 |
| 7079474 | Optical pickup apparatus It is an object of the present invention to provide an optical pickup apparatus which is capable of supporting multiple wavelengths in a reduced size without using a combined prism. An apparatus includes light emitting means having a plurality of integrated l... | 07/18/2006 |
| 7079460 | Optical power level-controlling device for stable oscillation of laser diode An optical power level-controlling device controls optical power level of a laser beam irradiated on an optical disk. The optical power level takes an ERASE (reference) level, a lower BIAS level and a higher WRITE level. Recording is performed by alternating the opt... | 07/18/2006 |
| 7065012 | Optical storage device and emission control method An optical storage device decreases the influence of return light to the laser light source and prevents an increase of power consumption even if high frequency superimposing is performed. The optical storage device applies drive current, to which a high frequency s... | 06/20/2006 |
| 6967979 | Semiconductor laser device, optical pickup and fabrication method of semiconductor laser device A semiconductor laser device and optical pickup in which the reflectance of the side beam at a header portion will not adversely affect the characteristics of the optical pickup, and superior in productivity, and a method of fabricating such a semiconductor laser de... | 11/22/2005 |
| 6965553 | Light emitting module, optical detecting module, optical pickup apparatus and manufacturing methods thereof Disclosed are a light emitting module, an optical detecting module, an optical pickup apparatus formed by coupling the ultra-minimized light emitting module and the optical detecting module, and manufacturing methods thereof. To this end, ultra-minimization, a micro... | 11/15/2005 |
| 6958969 | Optical semiconductor component package and optical pickup device In an optical semiconductor package according to the present invention, the component bearing surface of the stem having an outline made up of opposed first and second circular-arc parts, a first straight-line part which connects each end of the first and second cir... | 10/25/2005 |
| 6956808 | Optical device and optical sensor An aperture 12 for producing an evanescent wave is provided at an n-Au electrode 106. The aperture 12 is directed roughly perpendicularly to a direction in which end faces 104a of an active layer 104 of an optical device opp... | 10/18/2005 |
| 6940804 | Power control circuit for optical information recording device A power control circuit for an optical information recording device is disclosed. A power sampling signal from a photodiode is transmitted to a peal envelope acquiring circuit and a bottom envelope acquiring circuit and then sampled and held, which is fed-back to a ... | 09/06/2005 |
| 6914872 | Optical pickup and high-frequency superposition module therefor A high-frequency superposition module for an optical pickup that reduces the number of devices, facilitates scale-down and allows an oscillating circuit to be turned off when a power supply for feeding a direct current to a laser diode is turned off and an optical p... | 07/05/2005 |
| 6778486 | Laser module, optical head and optical information recording and reproducing apparatus In a laser module holding a semiconductor laser chip and a reflecting surface, to perform positioning on the semiconductor laser chip with high precision, and reduce the period of production, so as to realize downsizing and cost reduction, reflecting surfaces provid... | 08/17/2004 |
| 6771586 | Semiconductor laser element, method for manufacturing the same, and optical pickup using the same An object of the present invention is to stably manufacture a semiconductor laser element having a plurality of wavelengths without split of a wafer in a wafering step while preventing a tracking error due to the returning light of three beams in one semiconductor l... | 08/03/2004 |
| 6574257 | Near-field laser and detector apparatus and method A near-field laser and detector apparatus and method wherein both writing and reading of optical media can be carried out using the same laser operating in a single mode for both read and write operations. The single operational mode can be utilized with ... | 06/03/2003 |
| 6556533 | Optical pickup device In an optical pickup device for recording information onto and/or reading out information from an optical recording medium, comprising a light beam source for generating a light beam to be projected toward the optical recording medium, and a light beam de... | 04/29/2003 |
| 6545971 | Information recording/reproducing system for recording/reproducing information in three-dimensional recording medium of a light passing-through type A recording/reproducing system records/reproduces information in a three-dimensional optical recording medium wherein information is recordable at three-dimensional optional positions and wherein position reference regions having optical characteristics d... | 04/08/2003 |
| 6496469 | Integrated unit, optical pickup, and optical recording medium drive device The medium of a disk for CD-R is a pigmentation material so readout by a 650-nm laser diode (LD) is not possible. Since CD-R is becoming popular in the marketplace, there are demands for a DVD readout device that is capable of reading CD-R format disks. A... | 12/17/2002 |
| 6466535 | Method and apparatus for recording and reproducing data on and from an optical disk A method and apparatus for recording and reproducing data on and from an optical disk. The recording/reproducing apparatus records the data on an optical disk exhibiting a difference in an optical absorption rate between wavelengths using a light beam hav... | 10/15/2002 |
| 6452891 | Method for initializing a data storage device A method for initializing a phase change information storage device. The method includes the steps of: providing a data storage device having a phase change data storage medium, and exposing the phase change data storage medium with a first, energy exposu... | 09/17/2002 |
| 6388977 | Hologram laser unit and optical pickup device including the same A hologram laser unit to be used for performing recording and reproducing operations of information for an optical disk, includes a light source, a photodetector, and a hologram element which are formed integrally with each other. The hologram element inc... | 05/14/2002 |
| 6272097 | Optical head and apparatus for recording and reproducing optical information through the use of the optical head A minute optical head is provided so that a light source and one or more photo detector elements are integrated on the same substrate by a simple manufacturing process and may be applied to an apparatus for recording and reproducing recordable optical inf... | 08/07/2001 |
| 6266314 | Optical pickup device An optical pickup device has a single light beam path in which at least one or either of a plurality of kinds of light beams (different from each other in, for example, wavelength) for respective recording densities and/or recording-medium-thicknesses pro... | 07/24/2001 |
| 6111839 | Optical pickup head including a coherent first order mode laser light source An optical pickup head for high density optical storage applications and a method of fabrication including a first order mode light source and a phase shift mask. The light source is capable of emitting a power output of at least 10 mW. The phase shift ma... | 08/29/2000 |
| 6104690 | Integrated optical apparatus and associated methods An integrated optical apparatus includes an optically transparent substrate with a light source and a detector mounted adjacent thereto. The substrate includes an optical element in a transmit path from the light source to a remote target. The optical ele... | 08/15/2000 |
