Polarized

• In polarized microscopy, the direction of light has how many direction?

  one
• In polarized microscopy, how many plane of direction of vibration does it have?

  one
• Polarized microscopes illuminates the specimen with what type of light?

  Polarized light
• Polarized microscopy: identifies and classifies BIREFRINGENT SUBSTANCES that shine brillianty against DARK background.
• Birefringent: ability of substance to refract light in 2 DIRECTIONS at 90 degrees
• What are the 2 types of birefringence?

  Positive and Negative
• What is the rotation of the polarized light in positive birefringence?

  Clockwise
• What is the rotation of the polarized light in negative birefringence?

  counterclockwise
• Positive birefringence + RED COMPENSATOR is = to what color?

  Blue-green
• Negative birefringence + RED COMPENSATOR is = to what color?

  Yellow
• Give an example of positive birefringence?

  Calcium pyrophosphate
• Give an example of negative birefringence?

  Monosodium urate
• Red compensator: indicates the type of birefringence if it is positive or negative
• Polarizing filter: below condenser
• Analyzer: between objective and eyepiece
• Polarizing filter: east-west direction for light vibration
• Analyzer: north-south direction for light vibration
• Crossed position or crossed pols: A position in which the poles of a magnet are in the same plane.