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 |
| 8049963 | Multiple-wavelength binary diffractive lenses A dichromatic lens includes a plurality of zones being arranged on a lens structure, each of the zones having a specified radius and varying height. The lens structure focuses propagating light applicable to any intensity distribution for a plurality of wavelengths.... | 11/01/2011 |
| 7969654 | Volume Fresnel zone plates fabricated by laser direct writing A volume Fresnel zone plate and a method of producing such a device using a femtosecond laser for direct writing of zone plates. A volume zone plate has a number of Fresnel zone plate layers designed to focus light coherently to a single spot. Embodiments include bo... | 06/28/2011 |
| 7821714 | Apparatus and method for measuring aerial image of EUV mask An apparatus for measuring an image of a pattern to be formed on a semiconductor by scanning the pattern using a scanner, the apparatus including an EUV mask including the pattern, a zoneplate lens on a first side of the EUV mask and adapted to focus EUV light on a ... | 10/26/2010 |
| 7672050 | Refractive index controlled diffractive optical element and its manufacturing method A refractive index controlled diffractive optical element having a two-dimensional refractive index distribution to be written on a transparent material, wherein a first refractive index region with a refractive index n1 and width d1 is formed ... | 03/02/2010 |
| 7580187 | Diffractive optical element and optical low-pass filter utilizing the same The invention provides a diffractive optical element that can be used as a light beam splitter device, an optical low-pass filter or the like having a two-dimensionally multi-valued fine periodic structure. The surface of a transparent substrate for the diffractive ... | 08/25/2009 |
| 7443587 | DOE-based systems and devices for producing laser beams having modified beam characteristics Novel methods are disclosed for designing and constructing miniature optical systems and devices employing light diffractive optical elements (DOEs) for modifying the size and shape of laser beams produced from a commercial-grade laser diodes, over an extended range... | 10/28/2008 |
| 7420737 | Reconfigurable zone plate lens A reconfigurable zone plate lens is disclosed. Some embodiments may include a central annular element having a first a first circumference centered about a central axis. Embodiments may also include a plurality of concentric annular elements of increasing circumfere... | 09/02/2008 |
| 7418170 | Optical device and virtual image display device A virtual image display device is provided which displays a two-dimensional image for viewing a virtual image in a magnified form by a virtual optical system. The virtual image display device includes an optical waveguide (13) to guide, by internal total refl... | 08/26/2008 |
| 7414787 | Phase contrast microscope for short wavelength radiation and imaging method A phase contrast x-ray microscope has a phase plate that is placed in proximity of and attached rigidly to the objective to form a composite optic. This enables easier initial and long-term maintenance of alignment of the microscope. In one example, they are fabrica... | 08/19/2008 |
| 7405883 | Optical component and method of manufacture of optical component An optical component or optical low-pass filter has two or more regions demarcated by differences in refractive indexes, in which a region having a refractive index different from the refractive index of the continuous region with the largest volume among the two or... | 07/29/2008 |
| 7400458 | Imaging optics with wavelength dependent aperture stop An imaging system includes a wavelength dependent aperture stop, which transmits light with different ranges of wavelengths through apertures of different diameters. Thus, different colored light will have different F-stops, which can be selected based on the power ... | 07/15/2008 |
| 7372447 | Microdisplay for portable communication systems The invention relates to a microdisplay system that utilizes a small high resolution active matrix liquid crystal display with an illumination system and a magnifying optical system to provide a hand held communication display device. The system can employ an LED il... | 05/13/2008 |
| 7365370 | Light emitting diode package A light emitting diode package includes a light emitting diode device and a lens encapsulating the light emitting diode device. The lens includes two reflective surfaces disposed at either side of a central axis, and a plurality of diffractive surfaces disposed betw... | 04/29/2008 |
| 7365919 | Forming methods, forming devices for articles having a micro-sized shape and optical elements A article having a micro-sized shape being formed on the surface of the article by pressing a die onto the surface, wherein the elastic modulus of the article at room temperature is in the range of 1-4 GPa, the thickness of the article after forming is equal to 0.1 ... | 04/29/2008 |
| 7365909 | Fabrication methods for micro compounds optics Methods for fabricating refractive element(s) and aligning the elements in a compound optic, typically to a zone plate element. The techniques are used for fabricating micro refractive, such as Fresnel, optics and compound optics including two or more optical elemen... | 04/29/2008 |
| 7355795 | Head-up display device with curved optical surface having total reflection A display device for displaying information is provided with an optical system for guiding the light of the display device to the eye, the optical system having, in the order in the proceeding direction of the light, an entrance face for receiving the light, a curve... | 04/08/2008 |
| 7353086 | Methods and systems for providing a rearward field of view for use with motorcycles The present invention provides a system and method for using a camera and display screen to provide a vehicle operator with an image of all or part of the area surrounding the vehicle. A camera is attached to the vehicle that is in communication with a display scree... | 04/01/2008 |
| 7349164 | Imaging system and optical components thereof An imaging system includes a first optical component serving as an image forming part and a second optical component disposed in front of the first optical component relative to an incident light wave. The second optical component and first optical component are joi... | 03/25/2008 |
| 7349165 | Clamping apparatus for clamping optical element A clamping apparatus for clamping optical elements (100) includes a first fixture (10), a second fixture (20) and two mounting members (30). The first fixture defines a plurality of holding holes (11). The second fixture defines a ... | 03/25/2008 |
| 7348104 | System and method for fabrication and replication of diffractive optical elements for maskless lithography A method is disclosed for forming an array of focusing elements for use in a lithography system. The method involves varying an exposure characteristic over an area to create a focusing element that varies in thickness in certain embodiments. In further embodiments,... | 03/25/2008 |
| 7339149 | Vehicle headlight control using imaging sensor A headlamp control system for a motor vehicle includes an imaging array sensor operable to sense light in a field of view forward of the motor vehicle and a control that is responsive to the imaging array sensor. The control is operable to identify at least one obje... | 03/04/2008 |
| 7339551 | Reflective fresnel lens for sub-millimeter wave power distribution A reflective Fresnel lens for shaping an incident wave for efficiently delivering the incident wave to an array of receivers, having a wavelength within a predetermined range. The Fresnel lens comprises a ground plate and a plurality of reflective elements formed at... | 03/04/2008 |
| 7339714 | Variable blazed grating based signal processing A light processing system includes an array of optical signal processing devices. The array of processing devices are operable to receive at least some of a first signal part and to modulate the first signal part based at least in part on a control signal received f... | 03/04/2008 |
| 7332712 | Camera module fabrication method including the step of removing a lens mount and window from the mold An image sensor package includes an image sensor, a window, and a molding, where the molding includes a lens holder extension portion extending upwards from the window. The lens holder extension portion includes a female threaded aperture extending from the window s... | 02/19/2008 |
| 7333416 | Optical pickup apparatus for recording or reproducing information for an optical information recording medium and objective lens for optical pickup apparatus An objective lens of an optical pickup apparatus converges a divergent light flux onto an information recording surface. The following conditional formula is satisfied: |δSA1/δU|·|δU|+|δSA2/δT|·|δT|≦0.07... | 02/19/2008 |
| 7330319 | High brightness LED package with multiple optical elements A light source includes an LED die with an emitting surface and a plurality of optical elements having input surfaces in optical contact with distinct portions of the emitting surface. The optical elements can comprise tapers or concentrators that have reflective si... | 02/12/2008 |
| 7325934 | Image sensing system for a vehicle An image sensing system for a vehicle includes an imaging sensor having a two-dimensional array of light sensing photosensor elements, and a logic and control circuit having an image processor for processing image data derived from the imaging sensor. The logic and ... | 02/05/2008 |
| 7325935 | Image sensing system for a vehicle An image sensing system for a vehicle includes an imaging sensor comprising a two-dimensional array of light sensing photosensor elements. The system includes a logic and control circuit comprising an image processor for processing image data derived from the imagin... | 02/05/2008 |
| 7317585 | Compact imaging lens system A compact imaging lens system consists of a first positive aspheric lens element (1) on the object side and a second negative aspheric lens element (2) on the image side. The first lens element is a meniscus lens convex toward the image side, whereby t... | 01/08/2008 |
| 7315501 | System and method for recording of information on a holographic recording medium, preferably an optical card The invention relates to a method for the recording and reading of data with a holographic write/read apparatus onto a holographic recording medium with a thin holographic recording layer. The medium is preferably an optical card (2). The recording of the inf... | 01/01/2008 |
| 7312928 | Projection system field lens A projection system includes a modulator and a field lens. The modulator is to modulate light in accordance with image data. The field lens is to at least partially collect the light modulated by the modulator. The field lens has a number of elements. Each element h... | 12/25/2007 |
| 7311406 | Image sensing system for a vehicle An image sensing system for a vehicle includes an imaging sensor comprising a two-dimensional array of light sensing photosensor elements, preferably formed on a semiconductor substrate, and a logic and control circuit, preferably with at least a portion of the logi... | 12/25/2007 |
| 7295585 | Method for noise cancellation by spectral flattening of laser output in a multi-line-laser instrument An improved method of subtracting laser amplitude fluctuations from a desired signal in a multi-line laser system and a detection system having improved noise cancellation are provided. This invention reduces the noise contribution from laser amplitude fluctuations ... | 11/13/2007 |
| 7295200 | Computer generated hologram display system A method of displaying a computer generated hologram includes displaying the image as a set of facets that approximated to the true shape of the object to be displayed. Each of these facets is populated with points that together make up the image. The invention prov... | 11/13/2007 |
| 7292517 | Optical scanning device for use with multiple types of record carrier surfaces An optical scanning device for scanning of a first, second and third type of optical record carrier with radiation of a first wavelength λ1, a second wavelength λ2 and a third wavelength λ3, respectively, where the three wavelengt... | 11/06/2007 |
| 7286272 | Image display unit The present invention relates to an image display device in which a virtual image of an image display element is formed to display an image. The image display device includes a transmission type diffraction optical element (50) for diffracting exit lights fro... | 10/23/2007 |
| 7286293 | Method of fabricating diffractive optical element A diffractive optical element is fabricated to have a first element and a second element of different materials bonded to each other with a diffraction grating formed between the elements. In forming the first element, a material thereof is stamped with a die having... | 10/23/2007 |
| 7283205 | Optimized optical lithography illumination source for use during the manufacture of a semiconductor device A method and structure for optimizing an optical lithography illumination source may include a shaped diffractive optical element (DOE) interposed between the illuminator and a lens during the exposure of a photoresist layer over a semiconductor wafer. The DOE may, ... | 10/16/2007 |
| 7283452 | Objective lens having two aspheric surfaces and a phase shifter and optical device including the same An objective lens in which a first wavelength is used in reading a first optical disk, a second wavelength is used in recording or reading a second optical disk, and a phase shifter provided with annular step portions having a center coincident with an optical axis ... | 10/16/2007 |
| 7275397 | Method of molding a silica article Disclosed are high temperature free-flow mold for the production of near net-shape silica articles and method for the production of near net-shape silica articles. The mold is preferably made of graphite, preferably coated with SiC on the surfaces of the mold cavity... | 10/02/2007 |
