Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Electrical & Energy
Class Information
Number: 250/227.14
Name: Radiant energy > Photocells; circuits and apparatus > Optical or pre-photocell system > Light conductor > Condition responsive light guide (e.g., light guide is physically affected by parameter sensed which results in light conveyed to the photocell)
Description: Subject matter in which the light which photocell senses is affected by some property of the light conductor itself which is, in turn, acted upon by the condition or parameter being sensed and the photocell generates an electric signal in response thereto.










Sub-classes under this class:

Class Number Class Name Patents
250/227.18 Causing light spectral frequency/wavelength change 250
250/227.17 Causing polarization change in fiber 166
250/227.19 With coherent interferrometric light 230
250/227.16 With detection of fiber microbend caused by parameter affecting fiber 207
250/227.15 With detection of macroscopic break in fiber 118


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Patent Number Title Of Patent Date Issued
8704662 Method and apparatus for monitoring a structure Apr. 22, 2014
8664585 Sensor apparatus for detecting and monitoring a crack propagating through a structure Mar. 4, 2014
8633433 Optical potentiometer having an optical element with optical property continuously varying along a moving direction and operating device Jan. 21, 2014
8625082 Display apparatus Jan. 7, 2014
8625087 Packing container, method of packing optical probe, laser system, and checking method Jan. 7, 2014
8592747 Programmable filters for improving data fidelity in swept-wavelength interferometry-based systems Nov. 26, 2013
8546742 Array of nanowires in a single cavity with anti-reflective coating on substrate Oct. 1, 2013
8531292 Composite anti-tamper container with embedded devices Sep. 10, 2013
8519323 Electric field/magnetic field sensors and methods of fabricating the same Aug. 27, 2013
8514076 Entrance security system Aug. 20, 2013
8499638 Fibre optic accelerometer and a method of manufacturing a fibre optic accelerometer Aug. 6, 2013
8483978 System and method for measuring damage length Jul. 9, 2013
8461822 Temperature compensated fiber optic current or magnetic field sensor with insensitivity to variations in sensor parameters Jun. 11, 2013
8441368 Radiation guide for a detector, scattered radiation detector May. 14, 2013
8395109 Motion sensor for detecting bending or pivoting Mar. 12, 2013
8394329 Optical device for detection of agent Mar. 12, 2013
8392023 Photo-interrupter based force sensing handle and method of use Mar. 5, 2013
8379225 System for monitoring a relative displacement of components Feb. 19, 2013
8362413 Contact detection device Jan. 29, 2013
8354632 Optoelectronic transmission system with optical fibers for transmitting signals from two different directions Jan. 15, 2013
8346032 POF strain sensor using phase measurement techniques Jan. 1, 2013
8345229 Long distance optical fiber sensing system and method Jan. 1, 2013
8344314 Pressure sensor Jan. 1, 2013
8339591 Apparatus for interrogating fibre Bragg gratings Dec. 25, 2012
8330096 Interrogator for a plurality of sensor fiber optic gratings including a driver/modulator Dec. 11, 2012
8331001 Welding filter device and control method thereof Dec. 11, 2012
8290316 Self-referenced optical fiber sensor and related sensor network Oct. 16, 2012
8274039 Vertical waveguides with various functionality on integrated circuits Sep. 25, 2012
8270782 Optical fiber sensor Sep. 18, 2012
8257991 Process for manufacturing shell membrane force and deflection sensor Sep. 4, 2012
8260093 Component monitoring arrangement Sep. 4, 2012
8258458 Electromagnetic wave receiving antenna Sep. 4, 2012
8241231 Device, sensor, sensor element and method for measuring the profile of a spinal column and for measuring changes in the profile of the spinal column Aug. 14, 2012
8200049 Optical sensor for detecting and localizing events Jun. 12, 2012
8183520 Optical fiber shape sensor calibration May. 22, 2012
8178827 Universal LED testing device May. 15, 2012
8153956 Interrogator for a plurality of sensor fiber optic gratings including a masking compensation operation Apr. 10, 2012
8155485 Plasmon photocatalysis Apr. 10, 2012
8139905 Generator protection system Mar. 20, 2012
8124926 Key device and electronic device comprising the same Feb. 28, 2012
8121442 Optical fiber surveillance topology Feb. 21, 2012
8120774 Evanescent wave multimode optical waveguide sensitive to a chemical species and/or a physical parameter and provided with continuous redistribution of optical power between the modes Feb. 21, 2012
8098967 Generator protection system Jan. 17, 2012
8071934 Method and system for detecting single-shot pulse contrast based on fiber array Dec. 6, 2011
8030633 Methods and systems for monitoring a solid-liquid interface Oct. 4, 2011
8031988 Apparatus for pressure sensing Oct. 4, 2011
8031989 Radiological and nuclear optical sensor Oct. 4, 2011
8026474 Device for transferring light signals between two elements relatively movable to one another Sep. 27, 2011
8014640 Optical power monitoring with robotically moved macro-bending Sep. 6, 2011
8005325 Apparatus for sensing a motion Aug. 23, 2011

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15










 
 
  Recently Added Patents
Image browsing device, computer control method and information recording medium
Arrays of optical confinements and uses thereof
System and method for a TCP mapper
Method for testing multi-chip stacked packages
Methods and systems for managing print device supplies using cloud administration system configured for chemical signature tracking
Probe for ultrasound diagnostic apparatus
Signal phase-based location of network nodes
  Randomly Featured Patents
Operator panel
Audio signal reproducing apparatus
Scene description nodes to support improved chroma-key shape representation of coded arbitrary images and video objects
Loading mechanism for a recording and reproducing apparatus wherein a switch mechanism and the loading mechanism are a single unit
Portable microfilm reader
Switched capacitor filter for low voltage applications
Oxazoles for treating cytokine mediated diseases
Connector for electric appliances
Location determination using RF fingerprinting
Logic gate circuit and digital integrated circuit