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Class Information
Number: 356/407
Name: Optics: measuring and testing > By shade or color > With sample responsive to plural colors applied simultaneously
Description: Subject matter which includes means to simultaneously transmit or reflect at least two different colored bands or frequencies of light, through or from the sample, means to filter the modified light into two different bands of light, and detector and indicating means responsive to the light modified by the sample and after filtering to note the intensity of the different bands of light.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7557925 |
Optical instrument and parts thereof for optimally defining light pathways |
Jul. 7, 2009 |
| 7557923 |
Method and system for in situ spectroscopic evaluation of an object |
Jul. 7, 2009 |
| 7499165 |
System of measuring light transmission and/or reflection |
Mar. 3, 2009 |
| 7466416 |
Color measurement system |
Dec. 16, 2008 |
| 7446874 |
Reagents for arsenic meter |
Nov. 4, 2008 |
| 7443506 |
Compact spectral readers for precise color determination |
Oct. 28, 2008 |
| 7400404 |
Apparatus and method for measuring color |
Jul. 15, 2008 |
| 7369239 |
Light measuring apparatus and method for measuring monochromatic light |
May. 6, 2008 |
| 7365854 |
Apparatus and methods for high speed RGB color discrimination |
Apr. 29, 2008 |
| 7336362 |
Arsenic meter |
Feb. 26, 2008 |
| 7315375 |
Reagents for arsenic meter |
Jan. 1, 2008 |
| 7259375 |
Special effects video camera |
Aug. 21, 2007 |
| 7251031 |
Colorstick |
Jul. 31, 2007 |
| 7077064 |
Methods for measurement and control of ink concentration and film thickness |
Jul. 18, 2006 |
| 7050168 |
Optical measurement device and related process |
May. 23, 2006 |
| 6952263 |
Reflectometer |
Oct. 4, 2005 |
| 6934026 |
Making dye mixtures to produce a certain target color |
Aug. 23, 2005 |
| 6888633 |
Color measurement instrument with modulated illumination |
May. 3, 2005 |
| 6864981 |
Method of obtaining a range of colors |
Mar. 8, 2005 |
| 6806957 |
Method for plain dyeing a textile web of fabric |
Oct. 19, 2004 |
| 6798517 |
Handheld, portable color measuring device with display |
Sep. 28, 2004 |
| 6674530 |
Portable colorimeter |
Jan. 6, 2004 |
| 6594014 |
Color detecting sensor and method for ink ribbon |
Jul. 15, 2003 |
| 6590659 |
Cable identifier apparatus and method |
Jul. 8, 2003 |
| 6583880 |
Portable colorimeter |
Jun. 24, 2003 |
| 6573994 |
Optical method to monitor the processing of a starch-containing material |
Jun. 3, 2003 |
| 6462819 |
Light measuring apparatus and colorimeter |
Oct. 8, 2002 |
| 6445451 |
Colorimeter and assay device |
Sep. 3, 2002 |
| 6433873 |
Image-splitting color meter |
Aug. 13, 2002 |
| 6389968 |
Ink supply control device for printing machines and a method therefor |
May. 21, 2002 |
| 6384917 |
Tooth color measurement system |
May. 7, 2002 |
| 6272440 |
Method and apparatus for measuring color and/or composition |
Aug. 7, 2001 |
| 6268921 |
Interferometric device for recording the depth optical reflection and/or transmission characteristics of an object |
Jul. 31, 2001 |
| 6263291 |
Method and apparatus for measuring color and/or composition |
Jul. 17, 2001 |
| 6262804 |
Handheld color measurement instrument |
Jul. 17, 2001 |
| 6252189 |
Detecting defective peel-bearing potatoes in a random mixture of defective and acceptable peel-bearing potatoes |
Jun. 26, 2001 |
| 6191859 |
Optical systems for use in sorting apparatus |
Feb. 20, 2001 |
| 6157454 |
Miniature colorimeter |
Dec. 5, 2000 |
| 6124936 |
Color discrimination system |
Sep. 26, 2000 |
| 6088112 |
Image sensor having test patterns for measuring characteristics of color filters |
Jul. 11, 2000 |
| 6075608 |
Blend segregation detection |
Jun. 13, 2000 |
| 6061139 |
Nondestructive diagnostic method and nondestructive diagnostic apparatus |
May. 9, 2000 |
| 6038024 |
Method and an apparatus for determining the color stimulus specification of an object |
Mar. 14, 2000 |
| 6018385 |
Measuring system for registering reflectances on printed products |
Jan. 25, 2000 |
| 6008905 |
Method and apparatus for determining the appearance of an object |
Dec. 28, 1999 |
| 5966217 |
System and method for distinguishing an item from a group of items |
Oct. 12, 1999 |
| 5963334 |
Apparatus and method for measuring color of a measurement object |
Oct. 5, 1999 |
| 5963332 |
Internal color probe |
Oct. 5, 1999 |
| 5949549 |
Colorimeter with a beamsplitting prism |
Sep. 7, 1999 |
| 5933244 |
Method of article identification through color determination |
Aug. 3, 1999 |
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