Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7480053 | Position detection based on two-directional correlation A method of determining position information, the method having detecting—along a first direction—a value of a geometry parameter related to a structure formed on and/or in a substrate, and determining—with regard to a second direction—a value of a position ... | 01/20/2009 |
| 7292354 | Apparatus for photoelectric measurement of an original An apparatus for the photoelectric measurement of an essentially planar measurement original includes a photoelectric scanner and a positioning arrangement for the two dimensional movement of the scanner over the measurement original positioned on a supporting surfa... | 11/06/2007 |
| 7259857 | Methods for automated uniformity assessment and modification of image non-uniformities Methods for automated uniformity assessment and modification of image non-uniformities using an image measurement device capable of determining image reflectance and/or transmitter as a function of position, such as a spectrophotometer, a calorimeter, and/or a densi... | 08/21/2007 |
| 7224460 | Mapping-measurement apparatus A mapping-measurement apparatus includes a light illumination unit, a photodetector for detecting, through an aperture, reflection light or transmission light from a sample, and adjustable scanning mirrors on the illumination and detection sides of the sample, each ... | 05/29/2007 |
| 7224447 | System and method for measuring the permeability of a material A system for measuring the permeability of a material includes a light source for illuminating the material, and a stray light sensor for detecting stray light traveling through the material from the light source and outputting a stray light signal indicative of the... | 05/29/2007 |
| 7217518 | Fluorescence polarization assay The present invention relates to methods for detecting the presence of one or more analytes of interest in a sample by measuring changes in fluorescence anisotropy as a result of binding of the analytes to specific aptamers. The aptamers are immobilized on a solid s... | 05/15/2007 |
| 7206442 | Optical inspection method utilizing ultraviolet light A system and method for inspecting structures formed on the surface of an object using ultraviolet (UV) light. The object is placed in position and illuminated with at least one wavelength of UV light, directed at its surface from a UV source. At the moment of illum... | 04/17/2007 |
| 7151603 | Overhead transparency clarity simulator A method and apparatus for evaluating the scattering properties of a transparency image comprises projecting radiation through the transparency image to form a transmitted beam of radiation; splitting the transmitted beam of radiation into at least two distinct beam... | 12/19/2006 |
| 7145163 | Apparatus for detecting light-transmissive sheet-like body Illuminating light emitted from a light source is led via a condenser lens, an optical fiber, a half-silvered mirror, and a condenser lens to a reflector. The reflector reflects the illuminating light to a CCD device through a telecentric optical system which compri... | 12/05/2006 |
| 7140544 | Three dimensional vision device and method, and structured light bar-code patterns for use in the same The present invention is a system and method for three dimensional machine vision including a projector and camera. The projector casts a structured light Quadratic Residue Bar Code on the surface to be mapped. The camera then images the surface. The projected image... | 11/28/2006 |
| 7075716 | Arrangement for spectrally sensitive reflected-light and transmitted-light microscopy The arrangement for spectrally sensitive reflected-light and transmitted-light microscopy comprises an illuminating device which illuminates a sample under study in two dimensions. A scanning device is provided which respectively directs the light emanating from a d... | 07/11/2006 |
| 7003143 | Tomographic microscope for high resolution imaging and method of analyzing specimens Tomographic methods and device for obtaining images of microscopic specimens such as Pap smears. ... | 02/21/2006 |
| 6963822 | Method and apparatus for separation, analysis and evaluation of data Waveform diagrams of cholesterol and triglyceride, for example, obtained by electrophoresis are overlappedly displayed (superimposed). To compare or overlappedly display two waveform diagrams, one unit of absolute concentration is related to one unit of waveform siz... | 11/08/2005 |
| 6943363 | Apparatus for detecting light-transmissive sheet-like body Illuminating light emitted from a light source is led via a condenser lens, an optical fiber, a half-silvered mirror, and a condenser lens to a reflector. The reflector reflects the illuminating light to a CCD device through a telecentric optical system which compri... | 09/13/2005 |
| 6922279 | Harmonic generation microscopy A harmonic generation microscopy employs a laser device that emits a laser beam having a predetermined wavelength that causes no autofluorescence in a biological sample and that, after excited, induces both the second and third harmonic waves. The laser beam is proj... | 07/26/2005 |
| 6909561 | Adjustable gain detectors in RAS devices Fast, under-sampled raster scans are created and measured in order to automatically determine appropriate settings for the adjustable gain detector that is employed in the device. The non-linear nature of the detector response to gain settings, and the characteristi... | 06/21/2005 |
| 6758845 | Automatic firing apparatus and methods for laser skin treatment over large areas Laser skin treatment apparatus includes a handpiece for delivering laser-radiation pulses from a laser to an area of skin being treated. The area being treated is larger than an area treatable in a single firing of the laser. The larger area is treated by treating a... | 07/06/2004 |
| 6707557 | Method and system for estimating sensor dark current drift and sensor/illumination non-uniformities One aspect of the present invention is a system for estimating sensor and illumination non-uniformities. The system comprises a first light source, and a first sensor operable to capture light reflected from a first side of film illuminated by the light source while... | 03/16/2004 |
| 6661518 | Analysis machine for analyzing a cleanness condition of perforated transparent strips An analysis machine for analyzing the cleanness condition of perforated strips enables a direct non-destructive measurement, without image conversion, of pollution by particles on the surface of plastic strips that are relatively transparent and perforate... | 12/09/2003 |
| 6602716 | Method and device for referencing fluorescence intensity signals A method and device for fluorimetric determination of a biological, chemical or physical parameter of a sample utilize at least two different luminescent materials, the first of which is sensitive to the parameter, at least with respect to luminescence in... | 08/05/2003 |
| 5930433 | Waveguide array document scanner The optical scanner comprises a light source, an image sensor, a planar array of elongate optical waveguides, and input and output coupling optics for communicating light to and from the image transmission optics. The light source is adapted to direct lig... | 07/27/1999 |
| 5923413 | Universal bank note denominator and validator An apparatus and method for providing an indication of a type of note passing through the apparatus includes a note transport (12) which moves the note past transversely spaced spot sensing assemblies (18). Each spot sensing assembly includes four emitter... | 07/13/1999 |
| 5875022 | Film image detection device and method There is provided a film image detection method, comprising the steps of measuring densities at a large number of measurement points arranged along a first direction and a second direction crossing the first direction in a measurement area including an im... | 02/23/1999 |
| 5828459 | Apparatus and method for scanning laser microscopy A method for determining the fine structure of materials by means of a nonlinear scanning laser microscope, including the steps of forming an image of a specimen by scanning selected points thereof with a focusable laser beam of a predetermined fundamenta... | 10/27/1998 |
| 5686210 | Identification of image-forming material type Described herein is a method and apparatus for identifying image-forming material type, particularly photographic material types. The method comprises illuminating a sample of the material at a plurality of wavelengths and measuring the density at each of... | 11/11/1997 |
| 5682245 | Microscopic photometry apparatus In a microscopic photometry apparatus having an optical system for photometry and an optical system for observation, there are provided a mirror having a slit for photometry, a photodetector for receiving light from the slit for photometry, a TV camera fo... | 10/28/1997 |
| 5621532 | Laser scanning microscope utilizing detection of a far-field diffraction pattern with 2-dimensional detection A laser scanning microscope provided with a laser light source, an illuminating optical system for condensing the light from the laser light source to form a light spot on a specimen, a scanning device for causing relative movement of the light spot with ... | 04/15/1997 |
| 5621521 | Checking apparatus for array electrode substrate Provided is a checking apparatus for array electrode substrate, which can check an array electrode substrate in non-contact and at high speed. A probe assembly includes a plurality of electro-optic probes arranged in the staggered relation. Since this arr... | 04/15/1997 |
| 5617213 | Spot microdensitometer for spectral density analysis of film A spot densitometer system comprising a viewing assembly, a photodetection apparatus optically connected to the viewing assembly, and a computer interface electrically connected to the photodetection apparatus. The viewing assembly comprises a flat spectr... | 04/01/1997 |
| 5574577 | Method and apparatus for digitally archiving analog images An apparatus for digitally archiving analog film images includes a support surface on which an analog film image may be supported, and a digitizer that is spaced from the support surface in a direction defining a Z axis perpendicular to the support surfac... | 11/12/1996 |
| 5543883 | Calibration of sensitometers Sensitometers are used for monitoring photographic and radiographic processes, and then making it possible to control these processes. However, although it is relatively straightforward to obtain control strips for individual sensitometers, it is often di... | 08/06/1996 |
| 5463217 | Adapter for scanning transparencies with a reflective document scanner A completely passive adapter for scanning transparent images in a reflective scanner. Mirrors are used to capture light from a lamp that is internal to the scanner and to reflect that light thought a transparent image along the light path required by inte... | 10/31/1995 |
| 5393624 | Method and apparatus for manufacturing a semiconductor device A method of manufacturing a semiconductor device of this invention relates to a method of manufacturing a semiconductor device with ultra-micropattern electrodes. Light is projected on a resist film, and reflected light from a region on which no semicondu... | 02/28/1995 |
| 5323018 | Storage phosphur size compensation system Laser imaging apparatus includes a laser which produces a laser beam. An image media is scanned with a laser beam in a raster pattern to produce a scanned image. A photodetector converts the scanned image into an image signal. An amplifier amplifies the i... | 06/21/1994 |
| 5235183 | Optical scanner using tilted film media The method and apparatus for using a light beam to scan media, particularly radiographic film media, for digitization wherein the scanning beam and the media transport path are optimized to minimize interference of the incident directly transmitted scanni... | 08/10/1993 |
| 5229618 | Radiation image read-out apparatus compensating for image distortion A radiation image read-out apparatus comprises a read-out section for photoelectrically reading out a radiation image from silver halide film, on which the radiation image has been recorded, and thereby generating an image signal representing the radiatio... | 07/20/1993 |
| 5221848 | High dynamic range film digitizer and method of operating the same Apparatus and a method for digitizing an image having a high dynamic range is disclosed. The apparatus includes a solid-state image sensor having at least two linear charge-coupled device arrays thereon. Means is provided to pass the image across the imag... | 06/22/1993 |
| 5117119 | Auto-ranging film densitometer A film densitometer for generating digital density values as a function of analog transmittance signals received at an input. A comparator coupled to the input compares the transmittance signals to one or more range references characterizing a plurality o... | 05/26/1992 |
| 5113081 | Web inspection system and method with exposure, detection and sampling means A web of photographic film or the like having an optical property to be inspected and measured (such as exposure density or reflectance) is transported through a flasher chamber at a predetermined nominal speed and is exposed to radiation in the flasher t... | 05/12/1992 |
| 5037207 | Laser imaging system A laser imaging system is disclosed which provides the versatility of wide field digital imaging with enhanced spatial resolution and light gathering efficiency. The system will scan targets of any size, dependent only upon the data retrieval and storage ... | 08/06/1991 |
