Measure the Dimensions of Optical Pickup Beams

The beams from pickups used in CDs and DVDs are focused to a diameter of around 500 nm(dia.) at the focal position. Measuring these extremely small beams requires an expansion optics with a high rate of magnification.

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Product Information

FEATURES
･  Using  optics  of  2000  times  magnification,  pickup  of  500  nm(dia.)  is  measured  correctly.
･  Corresponds  to  400nm  to  780nm  wavelength  range.
･  Measurement  is  possible  to  the  pickup  using  next-generation  blue  LD.

MEASUREMENT  OBJECT
･  CD  pick-up　･  DVD  pick-up
MEASUREMENT  ITEM
･  Beam  diameter  ･  Elliptisity　･  Intensity  distribution