Search Patents
  • Spectacle lens machining method and apparatus
    Patent number: 6572451
    Abstract: The present invention makes it possible to perform machining that forms holes or grooves for the attachment of parts to the outer circumferential edge surfaces of lenses of various lens patterns, both accurately and with good reproducibility, by means of a simple operation. The spectacle lenses 100 are positioned so that the machining areas of the spectacle lenses 100 are maintained in a fixed positional relationship with the machining reference position of the machining apparatus 200 by using spectacle lens fastening devices 400 which can fasten the spectacle lenses 100 with attached spectacle lens holding jigs 110 in place, and adjust the positions of these spectacle lenses 100, to cause specified positions on the spectacle lenses 100 to contact the reference surfaces of a positioning reference plate 300.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: June 3, 2003
    Assignee: Hoya Corporation
    Inventors: Hakaru Fujita, Isao Iizuka, Yasushi Sakai
  • Ergonomic remote control
    Patent number: 6573854
    Abstract: A pistol-shaped television remote control unit, including an infrared light emitting diode (LED) and circuitry for transmitting control signals to an infrared detector in the television receiver, and a microprocessor which retains the last six channels selected in memory. The ergonomic design provides a plurality of conveniently activated switches, including a trigger which changes the channel to the channel previously selected, three volume control switches on the inside of the grip (volume up, down and mute) for convenient operation by the middle, ring and little fingers, a function keyboard on the back of the grip, and picture adjustment buttons on the side of the grip. The power switch is located on an angled portion of the back of the grip. Power to the unit is provided by batteries which are loaded into the barrel of the device by means of a threaded cap at the muzzle.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: June 3, 2003
    Inventors: Philippe Hug, Anne B. Scheim
  • Optical interleaver and de-interleaver
    Patent number: 6574049
    Abstract: Optical interleavers and de-interleavers that can be used to combine and separate optical signals are described. These devices are based on Mach-Zehnder interferometers having one or two Gires-Toumois mirrors. The optical designs disclosed herein include several key improvements over prior arts. These improvements of interleavers enabled lower cross talk and more accurate channel center frequencies. The new designs also improve on the stability of the devices and substantially reduce the manufacturing costs. With the usage of multi-fiber collimators, a pair of interleaver and de-interleaver is fabricated using the same optical block thereby further reducing the manufacturing costs.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: June 3, 2003
    Assignee: Nexfon Corporation
    Inventors: Charles Qian, Jianying Cao, Yi Qin
  • Imaging apparatus using dither to minimize pixel effects
    Patent number: 6574032
    Abstract: An imaging apparatus (10) for forming images from digital data, typically for printing or projection, the apparatus employing a spatial light modulator (30). The spatial light modulator (30) has a mounting (70) that is flexible in at least one direction in the plane that contains the surface of the spatial light modulator (30). An actuator (80) moves the mounting (70) at a speed that is at least a multiple of the refresh rate of the spatial light modulator (30), causing the movement of the spatial light modulator (30) to effect dithering of output pixels. This enlarges the effective pixel size to improve fill factor and reduce pixelization anomalies.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: June 3, 2003
    Assignee: Eastman Kodak Company
    Inventors: James E. Roddy, Robert J. Zolla
  • Spectacle apparatus having replaceable nose pad
    Patent number: 6568806
    Abstract: The nose pad for a spectacle frame comprises a spectacle frame, being a industrial spectacle frame, locating a rabbet on the pivotal portion and a plurality of rack members to two opposed side of bridge wherein said rabbet locating said rack member above; a nose pad, softly, connected to said spectacle frame by said rabbet and said rack member and it including projecting element, being a barb, and two row elements which being coupled to rack members by a plurality of holes, said number of holes being equal to rack member.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: May 27, 2003
    Assignee: Gazelle Corporation
    Inventor: Kuo-Tseng Lin
  • Thin pack remote environmental monitor system
    Patent number: 6570508
    Abstract: A monitor of measurable environmental conditions, contained in a thin, watertight envelope with an electronic processing circuit, liquid crystal display, operating in the positive or negative mode and a two way r/f or infrared spectrum communication system. The monitor collects, stores and provides a readout of the information collected. The processing circuit has a programmable memory and the ability to monitor simultaneously multiple conditions.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: May 27, 2003
    Inventor: Anthony Mark Kvenvold
  • Active pixel circuit in CMOS image sensor
    Patent number: 6570144
    Abstract: An active pixel circuit in a CMOS image sensor includes a photodiode to accumulate charge due to incident light. A first transfer transistor is arranged to pass a transfer signal when turned on by a column selection signal. A second transfer transistor transfers the accumulated charge from the photodiode to a first floating node when turned on by the transfer signal from the first transfer transistor. A source follow driver transistor changes the potential of a second floating node according to the charge transferred to the first floating node. A line selecting transistor reads out the potential of the second floating node when turned on by a line selection signal, and a reset transistor resets the charges accumulated in the first floating node when the reading out operation is finished.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: May 27, 2003
    Assignee: Hynix Semiconductor, Inc.
    Inventors: Seo Kyu Lee, Hang Kyoo Kim, Jung Soon Shin
  • Magnetic buckle for eyeglasses
    Patent number: 6568805
    Abstract: An eyeglasses clasp for maintaining eyeglasses on a clothing material. The clasp comprises magnetic means engaged with the eyeglasses temple bars and aligned with the eyeglasses frame body midpoint when the temple bars are closed. The magnets are in attractive magnetic communication when the temple bars into the closed position. The frame body and closed temple bars are then positioned on one side of a clothing material. The second temple bar is then pivoted into the close position such that it is on the other side of the clothing material. With the temple bars closed, the magnets are in attractive magnetic communication and impart a gripping force on the article of clothing. The gripping force substantially prevent movement between the temple bars and the clothing material.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: May 27, 2003
    Assignee: Dan L. Dietz Trust
    Inventor: Daniel Dietz
  • Digital densitometer with controlled light emitter
    Patent number: 6567171
    Abstract: A densitometer with a controllable light emitter intensity operates to reduce excessive exposure of sensitive materials, such as photoconductive film. During normal printer operation, the emitter is operated in a pulsed-mode, thereby reducing emitter temperature and prolonging its useful life. Exposure of the photoconductor is also reduced, which may prolong its useful life and avoid image defects. The pulse width, frequency, and duty-cycle are chosen to give these benefits without compromising density measurement capability. The emitter drive circuitry is connected to a motion sensor so that emitter intensity is reduced to a low level when photoconductor motion is stopped. A test mode is provided during which the emitter intensity is reduced by a calibrated amount, simulating the presence of a calibrated test sample.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: May 20, 2003
    Inventor: Allen J. Rushing
  • Spectable frames, unalterable at different temperatures and the process for making them
    Patent number: 6565207
    Abstract: Spectacle frames having one or more components such as a bridge, nose rests and ear pieces of martensitic NiTi, NiTi nobium, NiTi iron alloy made by means of plastic deformation starting from a 20% work hardening raised by hammering up to 50% so that the final section of the material so treated maintains, within a range of temperatures from −50° C. to +70° C., sufficient elasticity and flexibility for adaptating the frames to the different facial forms of users.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: May 20, 2003
    Assignee: Optigen S.r.l.
    Inventor: Paolo Rossin
  • Temple plate pad adapted to securely engage with a temple plate of a pair of eyeglasses
    Patent number: 6565208
    Abstract: A temple plate pad adapted to a temple plate of a pair of eye glasses has a bottom plate and a tapered body securely engaged with the bottom plate and adapted to securely engage with the temple plate. The bottom plate has a width larger than a width of the tapered body so that after the tapered body is attached to the bottom plate, an inverted T shape is formed. Whereby the T shaped temple plate pad is able to receive loading due to the width of the bottom plate being larger than the width of the tapered body.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: May 20, 2003
    Inventor: Shu-Min Lee
  • Typematic guard protocol for wireless keyboards
    Patent number: 6567016
    Abstract: A wireless keyboard may be provided with a guard protocol which prevents unintended typematics. An alive signal may be periodically generated to advise a host processor-based system that the keyboard communication link is still effective. If the host processor-based system receives a key make signal but does not receive a break signal or an alive signal, the processor-based system may deduce that the link has gone inactive, and may generate its own break signal. This avoids unnecessary power consumption and unnecessary typematics.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: May 20, 2003
    Assignee: Intel Corporation
    Inventors: Krishnan Rajamani, Harley D. Johnson, Steven C. Lo, John L. Reid, Venkatakrishna U. Yellepeddy
  • Array lens, lighting optical system, optical unit and imaging apparatus
    Patent number: 6567218
    Abstract: The present invention discloses the structure of the array lens that at least any one of the diagonal size, vertical size and lateral size of lens cell is set to almost 1/(4.5 or more) for each corresponding size of the display elements. The diagonal size of lens cell is set to almost 0.18 inch or less. The total number of lens cells is set to almost 240 or more. Finally, the lens focal distance of lens cell is set to almost 30 mm or less.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: May 20, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Ohuchi, Masahiko Yatsu, Taro Imahase, Tomohiro Miyoshi, Yasuo Otsuka, Takesuke Maruyama
  • Electrochromic solution containing hydrazone compound and device manufactured with same
    Patent number: 6567204
    Abstract: An electrochromic solution includes a hydrazone compound as an anodic compound is disclosed. The hydrazone compound has a general formula (I) wherein R1, R2, R3 and R4 are individually selected from a group consisting of hydrogen, alkyl containing 5 to 20 carbon atoms, alkenyl containing 2 to 20 carbon atoms, alkynyl containing 2 to 20 carbon atoms, and aryl containing 5 to 20 carbon atoms which are unsubstituted or optionally substituted with one or more ester, ether, aryl, amine, thioester, alkyl, alkoxy, alkene, alkyne, CN, F, Cl, Br, I and/or organometallcene functional group.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: May 20, 2003
    Assignee: Exon Science, Inc.
    Inventors: Fu-Shing Wang, Kuang-Mei Hsu
  • Molded lens element having a two-dimensional reference molded therein
    Patent number: 6567223
    Abstract: A molded glass lens is taught that includes a molded two-dimensional reference surface at a first end of the lens body, a first molded optical surface that is longitudinally displaced from the two-dimensional reference surface, and a molded second optical surface at a second end of the lens body. The first and second optical surfaces may be plano, convex or concave. The molded two-dimensional reference surface is planar and preferable annular. By physically locating the lens with the molded two-dimensional reference surface and one of the first or second optical surfaces, the lens can be held in a given orientation. Thus, the molded reference surface at the end of the cylindrical body allows for accurate and safe capture, positioning, handling, and placement for subsequent finishing operations, allowing for the creation of one or more additional lens datums.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: May 20, 2003
    Assignee: Eastman Kodak Company
    Inventor: Paul D. Ludington
  • Analog angular coder
    Patent number: 6567033
    Abstract: An analog angle encoder is provided having a resistor track and a wiper contact associated with the resistor track, a conductor track concentric with the resistor track, wherein one end of the resistor track is connected to ground and the other end is connected to an alternating voltage.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: May 20, 2003
    Assignee: Crouzet Appliance Controls S.A.
    Inventor: Georges Astic
  • External pupil lens system
    Patent number: 6563654
    Abstract: An external pupil lens system (200) with an entrance pupil distance at least three times that of the effective focal length. The lens system is comprised of several conventional lenses and a diffractive optical element (DOE) for secondary chromatic aberration correction. In the illustrative embodiment, the system includes an entrance pupil (50), followed by a lens group (52) containing two refractive elements for primary color correction. Next along the optical axis is lens group (54), which contains two refractive elements for astigmatism and higher order coma correction, followed by lens group (60), which contains one refractive element (62) and one DOE (64) for secondary color correction.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: May 13, 2003
    Assignee: Raytheon Company
    Inventors: Chungte W. Chen, Ronald G. Hegg, William B. King
  • Display unit for vehicles
    Patent number: 6563649
    Abstract: The object is to display an image projected by a display device, installed in a vehicle dashboard, for displaying an information data in the optimum field of vision for a driver and to make a driver recognize visually. Projected light (image) by a liquid crystal display 12 is polarized (horizontal polarization) by a polarizing plate 12a mounted on the surface of the liquid crystal display 12 and reaches the first polarizing plate 9 through a prism 11. Since the polarizing direction of the first polarizing plate 9 is perpendicular to that of the polarizing plate 12a, the projected image is reflected toward a eye position 6 by the first polarizing plate 9. External incident light on the area AR1, limited by the first polarizing plate 9, is polarized (vertical polarization) by passing the first polarizing plate 9.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: May 13, 2003
    Assignee: Yazaki Corporation
    Inventor: Yoshiyuki Furuya
  • Clip-on style lenses and method of assembly
    Patent number: 6557997
    Abstract: A clip-on sunglasses has a pair of lenses with mounting holes. A pair of bridge clips are integrally joined at opposing ends of a bridge wire. A mounting tongue of each of the bridge clips is engaged with one of the mounting holes for securing the bridge wire to the lenses using the bridge clips. Upper mounting snaps are engaged with the bridge clips and the mounting hole. Each one of a pair of lower mounting snaps is engaged with a further one of the mounting holes in each of the lenses, the upper and lower mounting snaps each providing a hooked finger extending therefrom, the hooked fingers positioned for engagement about opposing edges of a pair of eyeglasses, enabling the lenses to be removably engaged over front surfaces of the eyeglasses.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: May 6, 2003
    Inventor: John J. Sieberg
  • Frameless glasses attaching to body piercing studs
    Patent number: 6557994
    Abstract: A frameless glassware assembly attaching to body piercing studs. Design consisting of an elastomeric C-clip fixedly attached to one distal end of a metal arm, which is attached to a frameless glass lens assembly. Design allows for frameless eyeglass attachment to the eyebrow studs or to the nose studs of a user via the elastomeric C-clip. One embodiment allows the frameless glassware to attach to eyebrow studs and the second allows the frameless glassware to attach to a nose stud. Both designs are frameless and avoid side wire earpieces common to hold glassware to the face of a user.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: May 6, 2003
    Inventor: John Rose