Resources Contact Us Home
Quantum efficiency measurement apparatus and quantum efficiency measurement method

Image Number 12 for United States Patent #8119996.

A sample that is an object whose quantum efficiency is to be measured, and a standard object having a known reflectance characteristic are each attached to a sample window provided in a plane mirror. Based on respective spectrums measured by a spectrometer in respective cases where the sample is attached and the standard object is attached, the quantum efficiency of the sample is measured. The plane of an opening of an observation window is made substantially coincident with the exposed surface of the sample or standard object, so that direct incidence, on the observation window, of the fluorescence generated from the sample receiving an excitation light and the excitation light reflected from sample is prevented.

  Recently Added Patents
Pharmaceutical and diagnostic compositions for use in the treatment and diagnosis of neurodegenerative diseases or amyloid diseases
System and method to assess and report the health of landing gear related components
Method and apparatus for detection of LVDT core fallout condition
Generation, display, and manipulation of measurements in computer graphical designs
Plants and seeds of hybrid corn variety CH979678
Method and apparatus for prioritizing data transfer
Method and apparatus for visual neural stimulation
  Randomly Featured Patents
Mechanical locking/constrainment of an active layer on a solid support
Microprocessor controlled telephone unit
Pressure sensor, pressure sensor control apparatus, and pressure sensor system
Graphite brazing fixture coated with composite layers of titanium carbide and titanium nitride
Polyimide silicone, photosensitive resin composition containing the novel polyimide silicone, and method for pattern formation
Separable key for establishing detachable printer component compatibility with a printer
Plasticon-optimized composite beam system
System and method for providing communication resources to wireless dispatch priority users
Signal coupling apparatus for communication by medium voltage power line
Nonstoichiometric MgAl.sub.2 O.sub.3 for casting advanced superalloy materials