Resources Contact Us Home
Browse by Category: Main > Optical & Optics
Class Information
Number: 356/444
Name: Optics: measuring and testing > For light transmission or absorption > Of photographic film > With scanning, sweeping, or moving detector over film
Description: Subject matter wherein directed light transmitted through the sheet, strip, or other translucent solid medium is moved in a predetermined manner either by electronic means or by mechanically moving optical means; or wherein the sheet, strip, or other solid medium is moved past the light source; or wherein the photoelectric means is moved selectively about the surface of the film sheet, strip, or medium in order to obtain the intensity of the light transmitted at a plurality of locations through the film sheet, strip, or other solid medium.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8547553 Fiber optic hydrogen purity sensor and system Oct. 1, 2013
8502983 Apparatus and method for detecting surface plasmon resonance Aug. 6, 2013
8310660 Method and system for calibrating a multiple-beam curvature/flatness sensor Nov. 13, 2012
8265110 Laser and environmental monitoring method Sep. 11, 2012
8182099 Noise immune optical encoder for high ambient light projection imaging systems May. 22, 2012
8159673 Light amount detector, misalignment amount detector, and image density detector Apr. 17, 2012
7936460 Sensor unit in exhaust gas analyzer May. 3, 2011
7880883 Fluid flow computation, visualization, and analysis Feb. 1, 2011
7880885 Portable evaluation of window transmission Feb. 1, 2011
7811825 System and method for processing specimens and images for optical tomography Oct. 12, 2010
7738945 Method and apparatus for pseudo-projection formation for optical tomography Jun. 15, 2010
7480053 Position detection based on two-directional correlation Jan. 20, 2009
7292354 Apparatus for photoelectric measurement of an original Nov. 6, 2007
7259857 Methods for automated uniformity assessment and modification of image non-uniformities Aug. 21, 2007
7224460 Mapping-measurement apparatus May. 29, 2007
6758845 Automatic firing apparatus and methods for laser skin treatment over large areas Jul. 6, 2004
6707557 Method and system for estimating sensor dark current drift and sensor/illumination non-uniformities Mar. 16, 2004
6661518 Analysis machine for analyzing a cleanness condition of perforated transparent strips Dec. 9, 2003
6602716 Method and device for referencing fluorescence intensity signals Aug. 5, 2003
5930433 Waveguide array document scanner Jul. 27, 1999
5923413 Universal bank note denominator and validator Jul. 13, 1999
5875022 Film image detection device and method Feb. 23, 1999
5828459 Apparatus and method for scanning laser microscopy Oct. 27, 1998
5686210 Identification of image-forming material type Nov. 11, 1997
5682245 Microscopic photometry apparatus Oct. 28, 1997
5621532 Laser scanning microscope utilizing detection of a far-field diffraction pattern with 2-dimensional detection Apr. 15, 1997
5621521 Checking apparatus for array electrode substrate Apr. 15, 1997
5617213 Spot microdensitometer for spectral density analysis of film Apr. 1, 1997
5574577 Method and apparatus for digitally archiving analog images Nov. 12, 1996
5543883 Calibration of sensitometers Aug. 6, 1996
5463217 Adapter for scanning transparencies with a reflective document scanner Oct. 31, 1995
5393624 Method and apparatus for manufacturing a semiconductor device Feb. 28, 1995
5323018 Storage phosphur size compensation system Jun. 21, 1994
5235183 Optical scanner using tilted film media Aug. 10, 1993
5229618 Radiation image read-out apparatus compensating for image distortion Jul. 20, 1993
5221848 High dynamic range film digitizer and method of operating the same Jun. 22, 1993
5117119 Auto-ranging film densitometer May. 26, 1992
5113081 Web inspection system and method with exposure, detection and sampling means May. 12, 1992
5037207 Laser imaging system Aug. 6, 1991
4954971 Bidimensional laser array with two groups of active regions Sep. 4, 1990
4949284 Method of adjusting density measurement position Aug. 14, 1990
4941746 Apparatus for automatically determining the densities of a graphic image Jul. 17, 1990
4837450 Apparatus for reading a film image with controllable illumination and threshold value Jun. 6, 1989
4818861 Film image reading out device Apr. 4, 1989
4814597 Apparatus and method for enhancing radiographs and the like Mar. 21, 1989
4800269 Scanning type optical microscope Jan. 24, 1989
4792830 Method for detecting defocused photographic images and photographic printing device Dec. 20, 1988
4781464 Gel scanner Nov. 1, 1988
4762985 Auto-focus apparatus applied to image reading apparatus and the like Aug. 9, 1988
4750838 Optoelectronic circuit Jun. 14, 1988

1 2 3

  Recently Added Patents
Flash multi-level threshold distribution scheme
Highly specialized application protocol for email and SMS and message notification handling and display
Kit and method for the capture of tumor cells
Method for modeling and analyzing linear time invariant systems with time delays
Decentralized processing network
Battery power management system and method
Vehicle-mounted camera stabilized passively by vibration isolators
  Randomly Featured Patents
Connector device for computers
Amidic derivatives of glutamic, aspartic and 2-amino adipic acids, a process for preparing same, and anti-gastrin composition containing the derivatives
Gas power sources for a needle-less injector and needle-less injectors incorporating the same
Method of producing diacetone sorbose
Circuit for measuring the sensitivity of a cardiac pacer
Hollow core coaxial catheter
Container for food products
Portable golf club head cleaner
Pulse tube refrigerator
Nitric oxide gas detector