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Projection Lens Design using Double Telecentric Format

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Abstract

The Double Telecentric system has many advantages over non-telecentric optical system. The inspection system in the Semiconductor or Flat Panel production are always need high precision and Low Distortion lens system. The Double Telecentric system meets that critical requirements while provides some other benefits such as insensitive of Magnification along the image plane, Uniform illumination, and long working distance.

© 1998 Optical Society of America

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