Resources Contact Us Home
Birefringence measurement apparatus, strain remover, polarimeter and exposure apparatus

Image Number 15 for United States Patent #7251029.

A birefringence measurement apparatus for calculating information of polarization of light emitted from an object to be measured includes a light source, a first polarization element for extracting a beam in a specific polarization direction from light emitted from the light source, a sample stage that holds an object to be measured, at least one beam splitting unit that splits the light emitted from the object into two beams having the same polarization as that of the light emitted from the object, at least two second polarization elements for extracting beams in a specific polarization direction of the light split by the beam splitting unit, at least two light-quantity detectors for detecting light quantity of beams that have transmitted through the second polarization element, and an operation part for operating a light quantity received by the light-quantity detectors.

  Recently Added Patents
Dispensing of restricted goods
Systems and methods to provide report part via a web service
Round carrying case
Area efficient through-hole connections
Method for transmitting an electronic short message to multiple receivers
Solid state lighting devices with cellular arrays and associated methods of manufacturing
Polymer composites having highly dispersed carbon nanotubes
  Randomly Featured Patents
Solar-powered cattail light
Branching filter and communication device
Apparatus for fastening misaligned structural members
Integration of music from a personal library with real-time information
Computer-implemented methods for determining if actual defects are potentially systematic defects or potentially random defects
Announcement puzzle and associated website
Backlight unit with controlled power consumption and display apparatus having the same
Method of improving corrosion resistance of metal substrates by passivating with an onium salt-containing material
Plasma display panel having specific electrode structure