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Class Information
Number: 250/227.29
Name: Radiant energy > Photocells; circuits and apparatus > Optical or pre-photocell system > Light conductor > With specific illumination or viewing orientation of light conductor relative to viewed object (e.g., light normal to, and detector at 45 degree angle to, viewed object)
Description: Subject matter in which the angular relationship of the light source, photodetector means and object being illuminated and detected have a specified geometric relationship.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7173235 |
Apparatus for optically reading target |
Feb. 6, 2007 |
| 7071460 |
Optical non-contact measuring probe |
Jul. 4, 2006 |
| 7042172 |
Systems and methods for providing illumination in machine vision systems |
May. 9, 2006 |
| 6998600 |
Multifrequency ultra-high resolution miniature scanning microscope using microchannel and solid-state sensor technologies and method for scanning samples |
Feb. 14, 2006 |
| 6631000 |
Device and procedure for the quality control of in particular finished surfaces |
Oct. 7, 2003 |
| 6627910 |
Precipitation sensor |
Sep. 30, 2003 |
| 6624597 |
Systems and methods for providing illumination in machine vision systems |
Sep. 23, 2003 |
| 6590663 |
Reflectometer |
Jul. 8, 2003 |
| 6072175 |
Microscope using micro-channel filter |
Jun. 6, 2000 |
| 5886265 |
Optical vibration sensor |
Mar. 23, 1999 |
| 5835649 |
Light directing and collecting fiber optic probe |
Nov. 10, 1998 |
| 5828448 |
Method and apparatus for distinguishing between defects in an optical fiber coating |
Oct. 27, 1998 |
| 5786891 |
Method and apparatus for detecting defects in an optical fiber coating |
Jul. 28, 1998 |
| 5770852 |
Plate scanning device having light funnels with an adjustable aperture |
Jun. 23, 1998 |
| 5701181 |
Fiber optic diffuse light reflectance sensor utilized in the detection of occult blood |
Dec. 23, 1997 |
| 5640246 |
Apparatus for measuring reflected light utilizing spherically arranged optical fibers |
Jun. 17, 1997 |
| 5426713 |
Fiber optic probe with truncated cone window block for infrared spectral analysis instrument |
Jun. 20, 1995 |
| 5345335 |
Optically butted electro-optical components |
Sep. 6, 1994 |
| 5221839 |
Double bevel gradient-index rod lens optical receiver having high optical return loss |
Jun. 22, 1993 |
| 5185638 |
Computer controlled, multiple angle illumination system |
Feb. 9, 1993 |
| 5179424 |
Optoelectronic apparatus for the remote measuring of a physical magnitude |
Jan. 12, 1993 |
| 5178465 |
Optical fiber laying structure for electric power cable line trouble occurrence location detecting system |
Jan. 12, 1993 |
| 5166756 |
Powder fiber optic probe having angled end in NIR optical analyzing instrument |
Nov. 24, 1992 |
| 5164603 |
Modular surface inspection method and apparatus using optical fibers |
Nov. 17, 1992 |
| 5146082 |
Image detecting unit having emitting means and light receiving means and method for arranging the light emitting means and the light receiving means |
Sep. 8, 1992 |
| 5063781 |
Fiber-optic vibration sensor |
Nov. 12, 1991 |
| 5059784 |
Optical mask filter capable of reducing the semiperiodic component of temporal variation in endpoint detection |
Oct. 22, 1991 |
| 5028769 |
Device for reading a mold code on a glass bottle |
Jul. 2, 1991 |
| 4996418 |
Wide range fiber optical displacement sensor |
Feb. 26, 1991 |
| 4991971 |
Fiber optic scatterometer for measuring optical surface roughness |
Feb. 12, 1991 |
| 4943157 |
Fiber optic triangulation gage |
Jul. 24, 1990 |
| 4929828 |
Inspecting glass containers for line-over finish defects with bifurcated fiber optic bundle |
May. 29, 1990 |
| 4929041 |
Cathodoluminescence system for use in a scanning electron microscope including means for controlling optical fiber aperture |
May. 29, 1990 |
| 4924087 |
Optic fiber buffer defect detection system |
May. 8, 1990 |
| 4916309 |
Appliance for converting reflectance measuring instrument into a transmittance measuring instrument |
Apr. 10, 1990 |
| 4914284 |
Optical wide angle sensor head |
Apr. 3, 1990 |
| 4914291 |
Gimbal angle detector |
Apr. 3, 1990 |
| 4910395 |
Optical tracking sensor including a three-sided prismatic light splitter |
Mar. 20, 1990 |
| 4910402 |
Apparatus and method for measuring a property of a liquid |
Mar. 20, 1990 |
| 4906837 |
Multi-channel waveguide optical sensor |
Mar. 6, 1990 |
| 4900117 |
Rotary optical coupler utilizing cylindrical ringshaped mirrors and method of making same |
Feb. 13, 1990 |
| 4880305 |
Laser direction of arrival detector |
Nov. 14, 1989 |
| 4873432 |
Compound application detector |
Oct. 10, 1989 |
| 4861131 |
Displacement transducer with staggered optical fibres |
Aug. 29, 1989 |
| 4854659 |
Optical devices |
Aug. 8, 1989 |
| 4849645 |
Substrate inspection system having two scattered light detecting bundles orthogonally positioned to each other |
Jul. 18, 1989 |
| 4841140 |
Real-time color comparator |
Jun. 20, 1989 |
| 4839515 |
Fiber optic transducer with fiber-to-fiber edge coupling |
Jun. 13, 1989 |
| 4826274 |
Optical coupling arrangements including emitter and detector placed inside of a hollow closed end reflective waveguide |
May. 2, 1989 |
| 4827143 |
Monitor for particles of various materials |
May. 2, 1989 |
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