Bizarre Patents
A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7291904 | Downsized package for electric wave device A package substrate includes signal pads provided on a main surface of the package substrate, footpads provided on a backside of the package substrate, and a sealing electrode provided on the main surface to surround the signal pads, the signal pads being electrical... | 11/06/2007 |
| 7206120 | Dynamic beam splitter outputting a selectable number of beams A dynamic beam splitter including a beam deflector having a plurality of operative regions, the beam deflector being operative to receive a laser beam at a first one of the plurality of operative regions, the laser beam passing through the beam deflector, and to sel... | 04/17/2007 |
| 7102809 | Acoustic-optic devices utilizing tellurium crystals Acoustic-optic devices which use a crystal of tellurium into which is launched acoustic shear waves by a lithium niobate transducer in accordance with an input RF signal. Tellurium used in the devices exhibits a figure of merit in the range of around 5,000 to 10,000... | 09/05/2006 |
| 6538690 | Timing control in acousto-optic scanner based on acoustic velocity of traveling wave lens Pixel clock and beam scan timing of an acousto-optic scanner are controlled by an acoustic velocity-driven, phase locked loop containing an adjustable voltage controlled pixel clock generator, which is controlled by a detector that produces delayed and at... | 03/25/2003 |
| 5191466 | High resolution two-directional optical scanner A high resolution two-directional optical scanner, comprising a source of very high frequency light pulses, a first acousto-optic cell for diffracting the light pulses towards an image plane so as to form on a predetermined area thereof a line of pixels c... | 03/02/1993 |
| 5121247 | Two-dimensional optical scanning system A two-dimensional optical scanning system two fine-optical deflectors for a stepwise and fine deflection of a laser beam in two directions perpendicular to each other, whereby a fine scan zone can be stepwise scanned by the laser beam at a fine deflection... | 06/09/1992 |
| 5097480 | Acoustic modulation apparatus for laser The invention comprises a laser light source for a raster laser display. The laser light source comprises a laser cavity, a lasing medium within the cavity, a lasing light source and a series of mirrors within the cavity arranged to reflect the beam of la... | 03/17/1992 |
| 5086341 | Laser scanning apparatus having two, parallel, acousto optic deflectors for the horizontal scan This invention relates to a laser scanning apparatus which raster-scans a laser beam by using an acousto-optic deflector. In this laser scanning apparatus, the laser beam is horizontally scanned by a pair of acousto-optic deflectors. Thus, a laser scannin... | 02/04/1992 |
| 4992858 | Laser beam scanning apparatus A laser beam scanning apparatus deflects laser beams of different wavelengths to scan an object or medium in at least one direction using an acousto-optic deflector. The angle of scanning deflection is dependent on the frequency of the drive signal applie... | 02/12/1991 |
| 4971413 | Laser beam depicting apparatus A laser beam depicting apparatus adapted to depict a raster image by modulating a laser beam by image data and raster-scanning the laser beam by the reflecting surfaces of a rotational polygonal mirror comprises a laser source for producing a laser beam b... | 11/20/1990 |
| 4946233 | Light scanning apparatus In a light scanning apparatus, such as in a laser printer, an optical switch is provided between a light source and an acousto-optic light-modulating element for modulating the light according to data to be printed. The optical switch may be an acousto-op... | 08/07/1990 |
| 4943871 | Image read-out and reproducing apparatus An image read-out and reproducing apparatus comprises a read-out device for obtaining an image signal by two-dimensionally scanning a recording medium, on which image information has been recorded, with reading light, and a reproducing device for reproduc... | 07/24/1990 |
| 4764672 | Structure of high-resolution polygon laser scanner An improved high-resolution laser scanner is able to make each mirror facet of a rotating polygon mirror generate two or more scanning beams through the use of beam splitting and projection by a beam splitter so as to increase the scanning speed and enhan... | 08/16/1988 |
| 4611140 | Saw-CTD parallel to serial imager A line imager comprising: a semiconductor body; a planar, transparent piezoelectric body having a main surface overlying and in proximity to the semiconductor body; wave propagation means for propagating acoustic waves on the main surface of the piezoelec... | 09/09/1986 |
| 4600853 | Saw-CTD serial to parallel imager and waveform recorder A device for the high speed recording of photon images and nonrepetitive electrical waveforms which comprises a waveform recorder wherein surface acoustic waves excited in a can be GaAs, not layered piezoelectric-insulator-semiconductor layered structure ... | 07/15/1986 |
| 4577933 | Gap modulator for high speed scanners An acousto-optic modulator for a high speed/high resolution raster output scanner, the modulator have a substrate composed of substantially pure gallium phosphide, with a relatively thin high frequency transducer comprised of a piezo electric layer sandwi... | 03/25/1986 |
| 4523293 | Two-dimensional bulk acoustic wave correlator-convolver A two-dimensional bulk acoustic wave correlator-convolver having an acoustic mirror positioned two focal lengths from an integrated circuit-acoustic transducer array. The image, rather than the Fourier transform, of the input spatial distribution is retur... | 06/11/1985 |
| 4477184 | Obstacle detection system for use in vehicles An obstacle detection system for vehicles comprises a laser radar mounted on the front end of a vehicle and modulated by drive pulses of high rate. The laser pulses are deflected in two orthogonal directions by paired deflection signals fed from a deflect... | 10/16/1984 |
| 4389590 | System for recording waveforms using spatial dispersion A waveform recorder wherein surface acoustic waves excited in a piezoelecc-insulator-semiconductor layered structure produce a traveling electric field in the semiconductor substrate. Charges stored in the traveling potential wells and representing the i... | 06/21/1983 |
| 4350916 | Surface acoustic wave device having buried transducer An acoustic wave device wherein each electrode element of an interdigital transducer is buried or embedded between a pair of layers of piezoelectric material. The use of a multi-layer stack of layers of piezoelectric material enables each electrode elemen... | 09/21/1982 |
| 4307929 | Method of scanning a laser beam in a straight line A method of scanning a laser beam in a straight line is disclosed wherein a series of different frequency overlapping signals are applied to a first axis transducer of an acousto-optic modulator and a slowly varying frequency signal is applied to a second... | 12/29/1981 |
| 4295145 | Acousto-optically modulated laser scanning arrangement for correcting for interference appearing therein In those high speed laser scanning systems, particularly those used in printing, employing an acousto-optical modulator driven at two or more carrier frequencies for scanning with a plurality of focussed beams simultaneously in order to reduce the require... | 10/13/1981 |
| 4281350 | Acoustoelectric device for reading or processing a two-dimensional optical image The device comprises a piezoelectric medium associated with a semiconducting and photosensitive medium on which the optical image is projected. Four transducers placed on the piezoelectric medium emit four elastic waves in two distinct directions with wav... | 07/28/1981 |
| 4279001 | Image readout device with electronically variable spatial resolution This invention relates to the use of a standing acoustic wave charge storage device 11 as an image readout device. A frequency f1 22 is applied to the storage transfer device to create a traveling electric field in the device in one direction a... | 07/14/1981 |
| 4268871 | Scanning optical system for formation of a half tone image A scanning optical system having an optical system capable of controlling formation of a half tone image which is constructed with a light source, a first aperture which restricts a light beam of the light source, an image focusing optical system provided... | 05/19/1981 |
| 4253725 | Single sideband scanner A scanner using spatial modulation of the light profile incident upon an acousto-optic modulator in which the deflector clear aperture window is decentered from the optical axis of the system so that the light profile falls just within one edge of the def... | 03/03/1981 |
| 4236179 | Versatile microsecond multiple framing camera A versatile microsecond multiple framing camera generates a switched beam of illumination derived from a laser and switched by an acousto-optic modulator. The illumination is focused on a subject, and illumination from the subject is caused to scan over a... | 11/25/1980 |
| 4225887 | Optical image acousto-electric reading device An acousto-electric analysis device for an optical image in one or two dimensions. It comprises a piezoelectric substrate and a semi-conductor substrate with a diode network on the face which is opposite the piezoelectric substrate. The optical image is p... | 09/30/1980 |
| 4199783 | Optical system for recording and reading an information on a tape An optical system for recording n information signals on a photosensitive tape in the form of a discontinuous track made up of parallel track sections by means of n light beams having a two states modulated intensity, being simultaneously deflected by an ... | 04/22/1980 |
| 4142212 | Two-dimensional surface acoustic wave image scanning An output electrode which is angularly oriented with respect to the reading and scanning electrode is used with associated circuitry to provide a two dimensional image scan for an acousto-optical cell. The output electrode is an interdigitally shaped eche... | 02/27/1979 |
| 4122495 | Method and a device for an electro-acoustic reading of an optical device image A method and a device for the one-dimensional analysis of an optical image and its conversion into an electrical signal, of which the amplitude characterizes the luminous intensity at each point. The device comprises, disposed opposite one another, a piez... | 10/24/1978 |
| 4107701 | Acousto-optic snapshot recorder Apparatus for recording a serial line of electrical data as a spatial array of optical data. The apparatus employs an acousto-optic device through which the electrical signal to be recorded is passed as a continuous acoustic wave. The device is illuminate... | 08/15/1978 |
| 4099206 | Piezoelectric device responsive to optical image for generating an electrical signal A piezoelectric substrate is subjected to the continuous excitations produced by a high-frequency electric field of fixed radian frequency applied between its two opposite faces; high-frequency electrical pulses of radian frequency p | 07/04/1978 |
| 4097900 | Electro-acoustic device for reading a two dimensional image by means of an electrode network A device for the line-by-line electrical analysis of an image. It comprises a piezo-electric medium associated with a semiconductor medium scanned by the interaction of two elastic waves propagated at the surface of the piezoelectric medium, and an electr... | 06/27/1978 |
| 4084192 | Electro-acoustic devices for analysing optical image A reading device for analysing an optical image in one dimension and for converting it into an electrical signal the amplitude of which characterizes the light intensity of the elemental zones analysed by a semiconductive substrate and scanned by the inte... | 04/11/1978 |
| 4084191 | Acousto-optical scanner A scanning apparatus for converting an optical line image to a serial electrical analog signal by launching an acoustic wave in a plurality of ridged waveguides each of a different length. In one embodiment the launching transducer includes an electro-opt... | 04/11/1978 |
| 4084189 | Acoustro-electric scanner by phonon echo phenomenon A thin film optical scanner using phonon echoes. A piezoelectric (an insulator or a semiconductor) crystal has deposited thereon a photoconductor. An acoustic transducer propagates a broad strain wave pulse guided in or on the crystal. A relatively shorte... | 04/11/1978 |
| 4069507 | Device for the two-dimensional reading of optical images, using elastic surface waves A device for reading two-dimensional optical images. It comprises a piezoelectric substrate on which two transducers transmit elastic waves in two separate directions, and a semiconductive and photoconductive layer arranged near the surface of the substra... | 01/17/1978 |
| 4065791 | Interaction of images with strain waves to derive Fourier transform components of the images A system relying on the interaction of images and strain waves uses a technique called pseudo-beam steering to obtain selected components of the two-dimensional Fourier transform of the images. In pseudo-beam steering, two intersecting strain waves are co... | 12/27/1977 |
| 4053934 | Measuring the quality of images Method and apparatus for measuring the quality and sharpness of images and for using the measurement results to control parameters such as camera and projector focusing, range finding, optical system modifications and the like. In one embodiment, an image... | 10/11/1977 |
