Optics: measuring and testing – By light interference – For dimensional measurement
Reexamination Certificate
2006-06-06
2009-08-25
Toatley, Jr., Gregory J (Department: 2877)
Optics: measuring and testing
By light interference
For dimensional measurement
C356S429000
Reexamination Certificate
active
07580133
ABSTRACT:
A moving-object measuring interferometric apparatus comprises: a light beam output section outputting a measuring beam; an interference optical system obtaining interference light by projecting the measuring beam onto an object and by allowing light reflected from the object or transmitted light having passed through the object to interfere with reference light; an image pickup section obtaining image information by receiving the interference light on an image pickup surface; and an image pickup timing control section setting a momentary image pickup period during which the object is regarded as being stationary to be contained in a light reception acceptable period of the image pickup surface and controlling the interference light to enter the image pickup surface only during the momentary image pickup period.
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Takahashi Hidenori
Ueki Nobuaki
Birch & Stewart Kolasch & Birch, LLP
Fujinon Corporation
Richey Scott M
Toatley Jr. Gregory J
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