Bizarre Patents
A banana protective device for storing and transporting a banana carefully.
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 |
| 7889407 | Method for producing a duplicate hologram recording medium, apparatus for producing a duplication master, apparatus for producing a duplicate hologram recording medium, and duplication master An apparatus for producing a duplicate hologram recording medium includes: a positioning section configured to place the duplication master and the duplicate hologram recording medium at predetermined relative positions; an angle selective plate arranged between the... | 02/15/2011 |
| 7460286 | Method for producing an optical device, optical device, image display apparatus, and head-mounted display The exposure amounts of R, G, and B laser light emitted from a fabrication light source are so adjusted that the diffraction efficiency at R, G, and B wavelengths in an optical element is commensurate with the light intensity at the R, G, and B wavelengths in the li... | 12/02/2008 |
| 7428085 | Method for producing hologram by pico-second laser Disclosed is a method of producing a hologram through a two-beam laser interfering exposure process, which comprises emitting a coherent laser light with a pulse width (τ) ranging from greater than 900 femtoseconds to 100 picoseconds and a laser power of 10 μJ/pul... | 09/23/2008 |
| 7416306 | Laser projector A reflection-type laser projector (100) projects modulated laser beams outputted from a laser projection unit (40), on a screen, wherein a reflector (112) as a constituent of the screen (110) has reflection characteristics of reflecting, ... | 08/26/2008 |
| 7377656 | Projector A projector of rear-projection type including a light source that outputs a laser beam and a scanner that scans a screen with the laser beam. When a laser beam with energy exceeds an accessible emission limit due to failure of the light source or the scanner, at lea... | 05/27/2008 |
| 7367682 | Color image projection arrangement and method A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. | 05/06/2008 |
| 7357512 | Color image projection system and method An image projection system projects an image on a projection screen having a phosphor for converting incident violet light into green light which, together with red and blue light, creates the image in full color. The screen includes an apertured mask having apertur... | 04/15/2008 |
| 7355777 | Energy storage structures using electromechanically active materials for micro electromechanical systems System and method for storing energy using electromechanically active materials in micro electromechanical systems. A preferred embodiment comprises a movable element, an intermediate layer formed under the movable element, and electrical addressing circuitry formed... | 04/08/2008 |
| 7354157 | Image display device and light source device An image display device includes a laser light source, a wavelength conversion element converting a wavelength of a light beam emitted from the laser light source into a predetermined wavelength, and a light modulating device modulating the laser beam output from th... | 04/08/2008 |
| 7307770 | Hologram imaging device and method of using same A hologram imaging device for obtaining hologram images and associated document markings which are commonly being used for document verification is disclosed. The imaging device comprises a housing defining an imaging chamber, camera, hologram light source, document... | 12/11/2007 |
| 7230684 | Method and apparatus for range finding with a single aperture An apparatus has a rangefinder portion that includes: a radiation generator which emits radiation having a selected wavelength; a radiation detector which detects radiation having the selected wavelength; and an optical portion which includes a non-reciprocal optica... | 06/12/2007 |
| 7180927 | Semiconductor laser diode and semiconductor laser diode assembly containing the same Provided is a semiconductor laser diode. The semiconductor laser diode includes a first material layer, an active layer, and a second material layer, characterized in that the semiconductor laser diode includes: a ridge waveguide, which is formed in a ridge shape ov... | 02/20/2007 |
| 7167287 | Hologram imaging device and method of using same A hologram imaging device for obtaining hologram images and associated document markings which are commonly being used for document verification is disclosed. The imaging device comprises a housing defining an imaging chamber, camera, hologram light source, document... | 01/23/2007 |
| 7165844 | Projector type display apparatus There is provided a safe image display apparatus for projecting an image on a screen that can minimize a stimulus to eyes, retinae and optic nerves from projected light entering into the eyes directly. By comparing a displayed image captured by a camera with an inpu... | 01/23/2007 |
| 7142347 | Method and system for processing photonic systems using semiconductor devices An optical processing system includes an amplifier, a receiving device, an electronic processor, and a transmitting device. The receiving device includes a first wave-guide based router and an array of detectors. The array of detectors receives the first optical sig... | 11/28/2006 |
| 7123393 | Method and apparatus for holographic recording and retrieval A wavelength multiplexed holographic system includes a wavelength tunable blue-violet laser and a controller for wavelength multiplexing. A method of holographic data recording includes providing a holographic medium, providing a tunable blue-violet laser for wavele... | 10/17/2006 |
| 7103082 | Semiconductor laser element To provide a semiconductor laser device which has no ripple and can afford better FFP having a pattern near a Gaussian distribution upon operation at the high output, the semiconductor laser comprising a laminate structure in which a first conductive type semiconduc... | 09/05/2006 |
| 7058109 | Image amplification for laser systems An optical image amplifier comprising a copper bromide laser (10) to provide a source of optical radiation, an optical amplifier (18) for amplifying the optical radiation received from the laser (10), an optical image forming device (16) ... | 06/06/2006 |
| 7027197 | Pulsed-laser systems and methods for producing holographic stereograms Pre-sensitization techniques can be used in conjunction with holographic recording materials to allow high quality holographic stereograms to be recorded in those holographic recording materials using pulsed lasers. Additional hologram production system hardware and... | 04/11/2006 |
| 6906836 | Full color holographic image combiner system A device, such as a heads up display, includes equipment for generating a virtual image in the field of view of an observer. The equipment includes at least one light source having a wavelength range less than 2 nm. The light source can be a low pressure gas dischar... | 06/14/2005 |
| 6874893 | Laser display system A laser display system is disclosed, to remove speckles displayed on a screen, which includes at least one laser as light source, at least one filter transmitting or reflecting a particular wavelength of red, green and blue light generated in the laser, and mixing t... | 04/05/2005 |
| 6873444 | Volume holograms in transparent materials This invention discloses a method of producing, in a solid transparent material (3), a hologram of an object; the method includes the steps of: developing a three-dimensional mathematical model of an electro-magnetic field emanating from the object, the field... | 03/29/2005 |
| 6865309 | Optical coupling device, method of producing the same, and optical apparatus using the same An optical coupling device, a method of producing the same, and an optical apparatus using the same. A light transmitting medium of the optical coupling device is made of optical fibers to transmit the light. Three RGB laser beams can be compounded by forming one ou... | 03/08/2005 |
| 6809846 | Optical switch and optical network Disclosed is an optical switch for transmitting or shutting down an input light signal in accordance with a set switching state. The optical switch comprises first and second optical amplifiers connected in cascade. When an optical fiber amplifier comprising EDFs ( | 10/26/2004 |
| 6806982 | Pulsed-laser systems and methods for producing holographic stereograms Pre-sensitization techniques can be used in conjunction with holographic recording materials to allow high quality holographic stereograms to be recorded in those holographic recording materials using pulsed lasers. Additional hologram production system hardware and... | 10/19/2004 |
| 6768567 | Synchrotron-based EUV lithography illuminator simulator A lithographic illuminator to illuminate a reticle to be imaged with a range of angles is provided. The illumination can be employed to generate a pattern in the pupil of the imaging system, where spatial coordinates in the pupil plane correspond to illumination ang... | 07/27/2004 |
| 6639699 | Optical system for recording or replicating hologram The invention provides a hologram recording or replicating optical system wherein a misalignment-with-time of the center of a laser generated beam is automatically corrected so that the color balance in a color hologram surface, for instance, can be well ... | 10/28/2003 |
| 6633419 | Production method and device for hologram A method and apparatus for producing a hologram using a two-beam laser interference exposure process, comprising the steps of using as a light source a femtosecond laser having a pulse width of 900-10 femtoseconds and a peak output of 1 GW or more and cap... | 10/14/2003 |
| 6549309 | Holography apparatus, method and product Holographic patterns are produced by utilizing a laser to illuminate a workpiece with an interference pattern, with sufficient laser power to ablate the workpiece where it is illuminated by the laser, and moving the workpiece and the interference pattern ... | 04/15/2003 |
| 6404518 | Full-color hologram and method of producing the same A full-color hologram capable of generating a bright image and reproducing colors in all color regions is formed by multiple recording or multilayer recording with four different dominant wavelengths for reconstruction. The full-color hologram has one rec... | 06/11/2002 |
| 6396463 | Image projection apparatus There is provided an image projection apparatus which is small and in which a picture image can be stably observed while high resolution is maintained. The image projection apparatus is structured such that a beam of light from a light source passes throu... | 05/28/2002 |
| 6348983 | Holographic storage medium having enhanced temperature operating range and method of manufacturing the same A holographic storage medium, a method of manufacturing the holographic storage medium and a holographic storage device incorporating the storage medium. In one embodiment, the holographic storage medium includes: (1) first and second spaced-apart substra... | 02/19/2002 |
| 6297894 | Optical scheme for holographic imaging of complex diffractive elements in materials This invention discloses optical system and method for writing a refractive index pattern in a light transmissive or light absorbing sample. A light source for providing a short pulse laser beam in the femtosecond range having a low power per unit area is... | 10/02/2001 |
| 6130958 | Method for reconstructing the image of an object scanned with a laser imaging apparatus A method for reconstructing an image of a scanned object comprises the steps of collecting object data by scanning the object with a laser beam and detecting the light passing through the object; collecting perimeter data of the object during the scanning... | 10/10/2000 |
| 6101210 | External cavity laser External Cavity Laser An external cavity laser comprising first and second feedback means with an optical gain medium (2) therebetween, one of the feedback means is provided by a grating (4) formed in a silicon waveguide and the other feedback means is pr... | 08/08/2000 |
| 6043911 | Optical source module with two wavelengths and optical pickup apparatus using the same A light source module with two wavelengths that is adapted to generate laser beams different in wavelength. In the light source module, a hologram optical element (HOE) is used to allow a first laser beam generated at a first light source and a second las... | 03/28/2000 |
| 6023352 | Methods and systems for thermal fixing and/or erasing of holograms The invention features methods and systems for thermally fixing or erasing a laser-induced hologram in a photorefractive material, for example, by directing laser radiation having a wavelength through a thickness of the photorefractive material containing... | 02/08/2000 |
| 6023354 | Semiconductor Bragg reflector and a method of fabricating said reflector A semiconductor Bragg reflector and to a method of fabricating it. The reflector comprises a plurality of stacked layers on a substrate of a III-V type material, one of the stacked layers forming a holographic grating. The layer forming the grating compri... | 02/08/2000 |
| 5668647 | Method and apparatus and for processing ultrafast optical signals An apparatus and method are disclosed for providing holographic matched filters for application in all-optical holographic processing of ultrahigh-speed optical data. A scaled spatial image of temporal-domain data is provided by a spatial light modulator ... | 09/16/1997 |
| 5530564 | Holographic interference exposing device A holographic interference exposing device using a visible laser source and a chopper to easily align the optical system while confirming the light path of the laser beam with the naked eye. The exposing device comprises a main laser source generating a s... | 06/25/1996 |
