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| Patent # | Description |
|---|---|
| US-6,104,560 |
Method and apparatus for data reproducing in disk storage system In a data reproducing device using a read channel of a PRML system, during a period of a continuous reproducing operation mode for continuous reproduction... |
| US-6,104,559 |
Head position detecting method and disk device A noise component is eliminated from a servo signal recorded on a recording medium and read by a head. A number of times that a noise eliminated servo signal... |
| US-6,104,558 |
System and method of encoding an index mark into a servo address A system and method for encoding a servo address in a disk drive system having at least one disk for storing data is disclosed. A servo address associated with a... |
| US-6,104,557 |
Magnetic disk reproduction with offset compensation for thermal asperity A magnetic disk reproducing apparatus for reproducing data recorded at an arbitrary position on a rotating disk by a head includes a level detecting unit for... |
| US-6,104,556 |
Wide write disc certification process, apparatus and article of
manufacture A disc certification process, apparatus and article of manufacture for improved testing efficiency employs a testing head having a write element and a read... |
| US-6,104,555 |
Method and device for duplicating an initial program of a hard disk drive A device for copying programs installed on an original hard disk drive into duplicating hard disk drives is disclosed. The storage area of an original HDD is... |
| US-6,104,554 |
Projection television lens assembly A projection television lens system having a device that distorts for telescopically adjusting an A/B assembly, the tubular member that carries the A and B lens... |
| US-6,104,553 |
Image-forming lens An image-forming lens, of the retro-focus type, having only two lens elements is disclosed. By making the object-side of the first lens element, in order from... |
| US-6,104,552 |
Vehicular rearview mirror assembly with forward vision optical system An exterior rearview mirror for vehicles incorporates a forward vision improving system allowing improved visibility of the opposite roadway forward of the... |
| US-6,104,551 |
Zoom lens apparatus A zoom lens apparatus moves the first lens group and the second lens group by rotating a zoom cam cylinder with cam grooves formed thereon. A plurality of... |
| US-6,104,550 |
Control method for zoom lens camera and zoom lens camera A control method for a zoom lens camera which includes a focal length detection mechanism which detects the focal length divided into a finite number of steps;... |
| US-6,104,549 |
Zoom lens device with zooming position detector A zoom lens device has a zooming position detector consisting of a code plate and a brush device. The code plate is mounted to a front face of a shutter unit... |
| US-6,104,548 |
Zoom lens A zoom lens has, in succession from the object side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, and... |
| US-6,104,547 |
Zoom lens and optical apparatus having the same A zoom lens includes, in order from an object side to an image side, a first lens unit of positive refractive power, a second lens unit of negative refractive... |
| US-6,104,546 |
Athermalized focal length extender for a zoom lens having a split rear
image-forming group An extender lens group removably incorporated in a zoom lens equipped with a temperature compensating feature for increasing the prim-lens focal length to... |
| US-6,104,545 |
Gradient index lens component and image pickup apparatus using the
gradient index lens A gradient index lens component composed of a single radial type gradient index lens element which has planar surfaces on both side and a positive refractive... |
| US-6,104,544 |
Exposure apparatus A projection optical system of the present invention has a first lens group G.sub.1 being positive, a second lens group G.sub.2 being negative, a third lens... |
| US-6,104,543 |
Eyepiece optical system An eyepiece optical system includes the first lens group constituted by a negative single meniscus lens element having a convex surface on the side of a user's... |
| US-6,104,542 |
Wide-angle eyepiece lens with large eye relief Wide-angle eyepiece lenses for a microscope are disclosed. A representative lens comprises, from the object side to the eye side, a first lens group with... |
| US-6,104,541 |
Collimator lens and optical scanning apparatus using the same A collimator lens comprises, successively from a parallel luminous flux side, a positive lens, a cemented lens made of negative and positive lenses, a positive... |
| US-6,104,540 |
Decentered optical system An optical system capable of correcting aberrations due to three-dimensional decentration by using a rotationally asymmetric surface having no plane of symmetry.... |
| US-6,104,539 |
Decentered prism optical system A decentered prism optical system suitable for use as an ocular optical system used in combination with an objective optical system and favorably corrected for... |
| US-6,104,538 |
Passive panoramic viewing systems Systems for affording panoramic forward, side, rear and underneath views to operators of a wide range of transportation means for facilitating safe manoeuvering... |
| US-6,104,537 |
Image-forming optical system having a decentered optical element in a
first lens group An image-forming optical system, e.g. a variable-magnification optical system, using a compact decentered optical system capable of providing a clear image of... |
| US-6,104,536 |
High efficiency polarization converter including input and output
lenslet arrays A lenticular polarization converter for polarizing a beam of unpolarized light is described. The polarization converter includes an input lenslet array, a... |
| US-6,104,535 |
Laser irradiation apparatus and method Where an object is irradiated and scanned with laser beams that have been shaped into a linear shape and are moved in their width direction, a cylindrical lens... |
| US-6,104,534 |
Antireflection coating with electromagnetic wave shielding effect and
optical member having the antireflection... In an optical member having a coating for reducing a ray reflecting on the coating and for reducing an electromagnetic wave incident on the coating, the optical... |
| US-6,104,533 |
Viewfinder with diffractive optical element An optical viewfinder system comprising two optical elements, and a field stop or a reticle, to provide an image of a scene to a viewer, and further comprising a... |
| US-6,104,532 |
Real image mode variable magnification finder optical system A real image mode variable magnification finder optical system is provided with an objective system having a positive refracting power, a correctly erect image... |
| US-6,104,531 |
Telescopic sight with variable magnification A telescopic sight with variable magnification includes an adjusting ring for varying the magnification. The telescopic sight housing and an eyepiece stub are... |
| US-6,104,530 |
Transparent laminates and optical filters for displays using same Transparent laminates which have high transparency and, moreover, excellent electromagnetic shielding characteristics and near-infrared cutting-off ... |
| US-6,104,529 |
Optical fiber communication system employing wide band crystal alloy
light generation devices In accordance with the invention, an improved optical communication system employs light-generating devices comprising a phonon-tuned crystal alloy host doped... |
| US-6,104,528 |
Optical fiber amplifier for achieving high gain of small signal An optical fiber amplifier for achieving high gain of a small signal, including a pump laser diode (LD) for applying pumping light to amplify weak incident... |
| US-6,104,527 |
High efficiency bandwidth doubled and gain flattened silica fiber
amplifier A broadband light amplifier comprising a pair of signal transmission and amplification arms, one for carrying a short wavelength signal in a short optical... |
| US-6,104,526 |
Optical amplifier and a method of controlling the optical amplifier In the optical amplifier of the present invention, a part of signal light inputted to an input connector is branched out by an optical coupler, whereby its power... |
| US-6,104,525 |
Array of thin film actuated mirrors and method for the manufacture
thereof An inventive array of M.times.N thin film actuated mirrors includes an active matrix, a passivation layer, an etchant stopping layer and an array of M.times.N... |
| US-6,104,524 |
Optical scanning device A polygon mirror 36 have reflecting surfaces being arrayed such that the reflecting surfaces each having coatings 38 at both ends thereof and the reflecting... |
| US-6,104,523 |
Dual beam double pass raster output scanner A dual infrared beam raster scanning system has overfilled facets on the rotating polygon mirror and a double pass through a two cylindrical lens element f-theta... |
| US-6,104,522 |
Optical scanning apparatus with controlled sag and ghost An optical scanning apparatus includes a light source, a first optical system which includes a coupling lens for coupling a beam from the light source, a polygon... |
| US-6,104,521 |
Scanning optical systems A scanning optical system includes a light source for emitting a beam of light and a first optical system that changes a cross-sectional shape of the beam into... |
| US-6,104,520 |
Laser scanning optical system and image forming apparatus using the same A laser scanning optical system includes a light source, a polygonal mirror for deflecting a light beam emitted by the light source, and a scanning lens system... |
| US-6,104,519 |
Multi-beam exposure unit This invention has as its object to provide an image forming apparatus which can provide a color image free from any color misregistration with low cost, and a... |
| US-6,104,518 |
Scanner provided with accurately parallel optical module and top cover A scanner includes a bottom cover, a top cover, at least one elastic member, at least one rod, an optical module and at least one spacer. The elastic member is... |
| US-6,104,517 |
Secure communications system A secure communications system which comprises a laser-sending system and a light receiver. The laser light is divided into two beams, one beam is modulated to... |
| US-6,104,516 |
Wavelength-changeable light source capable of changing wavelength of
output light, optical communication... In a wavelength-changeable light source of the present invention, a wavelength control is performed using a plurality of control systems when the wavelength of a... |
| US-6,104,515 |
Method and apparatus for providing high-order polarization mode
dispersion compensation using temporal imaging A high-order polarization mode dispersion (PMD) compensation arrangement compensates for PMD in an optical signal using a temporal imaging technique. An optical... |
| US-6,104,514 |
Dispersion based method of and apparatus for reducing unwanted mixing
products on multiplexed optical... A method of and apparatus for reducing unwanted mixing products on multiplexed optical communications lines, based upon the dispersion characteristics of the... |
| US-6,104,513 |
High bandwidth communication system for large buildings A system and method for large building high bandwidth communication. An interface station is located on or near the building for providing high bandwidth... |
| US-6,104,512 |
Method for adjusting the power level of an infrared signal An electronic device (50) includes an infrared transceiver (510) having adjustable infrared signal intensity capability. The electronic device (50) commences to... |
| US-6,104,511 |
Reflector-based off-axis optical system for holographic storage The holographic storage and retrieval system according to the present invention comprises one convex reflector and one concave reflector having the same optical... |
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