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LJ Laboratories LLC Patents
Assignee:
LJ Laboratories LLC
Address:
Chicago, IL
No. of patents:
44
Patents:




Patent Number Title Of Patent Date Issued
6590660 Apparatus and method for measuring optical characteristics of an object July 8, 2003
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth
6583866 Spectrometric apparatus and method for measuring optical characteristics of an object June 24, 2003
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth
6573984 Apparatus and method for measuring optical characteristics of teeth June 3, 2003
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being meas
6570654 Apparatus and method for measuring optical characteristics of an object May 27, 2003
Color/optical characteristics measuring systems and methods are disclosed. Perimeter receiver fiber optics/elements are spaced apart from a central source fiber optic/element and received light reflected from the surface of the object is measured. Light from the perimeter fiber optics pa
6538726 Apparatus and method for measuring optical characteristics of an object March 25, 2003
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being meas
6519037 Spectrometer having optical unit including a randomized fiber optic implement February 11, 2003
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth
6501542 Apparatus and method for measuring optical characteristics of an object December 31, 2002
Optical characteristic measuring systems and methods for determining the color or other optical characteristics of teeth comprising a probe body (2) wherein the probe provides light to the surface of the object (20). Perimeter receiver fiber optics (102) are spaced apart from a source fi
6490038 Apparatus and method for measuring optical characteristics of an object December 3, 2002
Color measuring systems and methods are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object being measured. Light from the perimeter fiber optics pass to a variety of filters. The system
6449041 Apparatus and method for measuring optical characteristics of an object September 10, 2002
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth
6417917 Apparatus and method for measuring optical characteristics of an object July 9, 2002
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being meas
6414750 Spectrometric apparatus and method for measuring optical characteristics of an object July 2, 2002
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth
6393401 Picture display device with associated audio message May 21, 2002
A picture frame and accompanying audio message circuit is provided such that one or more desired audio messages stored in the audio message circuit associated with one or more display pictures can be played upon the touching of the pictures or the frame, or in response to a voice rec
6381573 Method for producing remotely a display device storing one or more audio messages April 30, 2002
A picture frame and accompanying audio message circuit is provided such that one or more desired audio messages stored in the audio message circuit associated with one or more display pictures can be played upon the touching of the pictures or the frame, or in response to a voice rec
6381017 Apparatus and method for measuring optical characteristics of an object April 30, 2002
Color/optical characteristics measuring systems and methods are disclosed. Perimeter receiver fiber optics/elements are spaced apart from a central source fiber optic/element and received light reflected from the surface of the object is measured. Light from the perimeter fiber optics pa
6377926 Method for producing remotely a display device storing one or more audio messages April 23, 2002
A picture frame and accompanying audio message circuit is provided such that one or more desired audio messages stored in the audio message circuit associated with one or more display pictures can be played upon the touching of the pictures or the frame, or in response to a voice rec
6373573 Apparatus for measuring optical characteristics of a substrate and pigments applied thereto April 16, 2002
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth
6362888 Spectrometer assembly March 26, 2002
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth
6307629 Apparatus and method for measuring optical characteristics of an object October 23, 2001
Color measuring systems and methods are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object being measured. Light from the perimeter fiber optics pass to a variety of filters. The system
6301004 Apparatus and method for measuring optical characteristics of an object October 9, 2001
Color/optical characteristics measuring systems and methods are disclosed. Perimeter receiver fiber optics/elements are spaced apart from a central source fiber optic/element and received light reflected from the surface of the object is measured. Light from the perimeter fiber optics pa
6271913 Apparatus and method for measuring optical characteristics of an object August 7, 2001
Optical characteristic measuring systems and methods for determining the color or other optical characteristics of teeth comprising a probe body (2) wherein the probe provides light to the surface of the object/tooth (20). Perimeter receiver fiber optics (102) are spaced apart from a sou
6264470 Apparatus and method for measuring the color of teeth July 24, 2001
Color measuring systems and methods such as for determining the color or other characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object/tooth being measured. Light
6263310 Method for producing remotely a commemorative device having an audio message circuit July 17, 2001
A picture frame and accompanying audio message circuit is provided such that one or more desired audio messages stored in the audio message circuit associated with one or more display pictures can be played upon the touching of the pictures or the frame, or in response to a voice rec
6254385 Apparatus and method for measuring optical characteristics of teeth July 3, 2001
Methods for generating optical characteristics data of a dental object, including at least color characteristics, are disclosed. A probe is positioned in proximity to the dental object. The probe provides light to the object and receives light from the object, and the received light is
6249348 Integrated spectrometer assembly and methods June 19, 2001
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth
6249340 Apparatus and method for measuring optical characteristics of an object June 19, 2001
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being meas
6249339 Method and apparatus for detecting and preventing counterfeiting June 19, 2001
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of an object are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object being measur
6246479 Integrated spectrometer assembly and methods June 12, 2001
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth
6246471 Apparatus and method for measuring optical characteristics of an object June 12, 2001
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth
6239868 Apparatus and method for measuring optical characteristics of an object May 29, 2001
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being meas
6233047 Apparatus and method for measuring optical characteristics of an object May 15, 2001
Color/optical characteristics measuring systems and methods are disclosed. Perimeter receiver fiber optics/elements (7) are spaced apart from a central source fiber optic/element (5) and received light reflected from the surface of the object (20) is measured. Light from the perimeter fi
6222620 Apparatus and method for measuring optical characteristics of an object April 24, 2001
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being meas
6188471 Apparatus and method for measuring optical characteristics of an object February 13, 2001
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being meas
6185851 Picture frame with associated audio messages February 13, 2001
A picture frame and accompanying audio message circuit is provided such that one or more desired audio messages stored in the audio message circuit associated with one or more display pictures can be played upon the touching of the pictures or the frame. When audio message playback is
6127673 Apparatus and method for detecting curvature October 3, 2000
An apparatus and method for detecting, determining and/or quantifying cable flexing for use in optical instruments or in other instruments such as strain gauges, seismometers, and other instruments in which it is desired to detect, determine and/or quantify the degree of flex of a cable
6118521 Apparatus and method for measuring optical characteristics of an object September 12, 2000
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth
6040902 Apparatus and method for measuring color March 21, 2000
Color measuring systems and methods are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object being measured. Light from the perimeter fiber optics pass to a variety of filters. The system
6038016 Method and apparatus for detecting and preventing counterfeiting March 14, 2000
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of an object are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object being measur
5956682 Picture frame with associated audio messages and position sensitive or speech recognition device September 21, 1999
A picture frame and accompany audio message circuit is provided such that one or more desired audio messages stored in audio message circuit associated with one or more display pictures can be played upon the touching of the pictures or the frame, or in response to a speech recogniti
5926262 Apparatus and method for measuring optical characteristics of an object July 20, 1999
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of an object are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object being measur
5880826 Apparatus and method for measuring optical characteristics of teeth March 9, 1999
Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being meas
5871351 Apparatus and method for measuring the color of teeth February 16, 1999
Color measuring systems and methods such as for determining the color or other characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object/tooth being measured. Light
5851113 Apparatus and method for measuring the color of teeth December 22, 1998
Color measuring systems and methods such as for determining the color or other characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object/tooth being measured. Light
5759030 Method for determing optical characteristics of teeth June 2, 1998
Color measuring systems and methods such as for determining the color or other characteristics of teeth are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object/tooth being measured. Light
5745229 Apparatus for determining optical characteristics of an object April 28, 1998
Color measuring systems and methods are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object being measured. Light from the perimeter fiber optics pass to a variety of filters. The system

 
 
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